All airlines flying from Seattle-Tacoma (SEA) to Chicago O'Hare (ORD).

FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 11:20 Seattle-Tacoma (SEA) 17:38 Chicago O'Hare (ORD) 3 Aer Lingus EI 7359 Non-stop Boeing 737-800 (738) 4:18 Valid until 2026-01-05 Codeshare flight, operated by American Airlines.(AA 2471)
Daily 11:51 Seattle-Tacoma (SEA) 17:55 Chicago O'Hare (ORD) 3 Aer Lingus EI 7359 Non-stop Boeing 737-800 (738) 4:04 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 2775)
Mon,Fri-Sun 07:10 Seattle-Tacoma (SEA) 13:20 Chicago O'Hare (ORD) 5 KLM KL 7378 Non-stop Airbus A220-300 (223) 4:10 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 2055)
Mon,Wed,Fri 07:10 Seattle-Tacoma (SEA) 13:22 Chicago O'Hare (ORD) 5 KLM KL 7378 Non-stop Airbus A220-300 (223) 4:12 Effective 2026-01-05 through 2026-02-27 Codeshare flight, operated by Delta Air Lines.(DL 2055)
Mon,Wed,Fri,Sun 07:10 Seattle-Tacoma (SEA) 13:22 Chicago O'Hare (ORD) 5 KLM KL 7378 Non-stop Airbus A220-300 (223) 4:12 Effective 2026-03-01 through 2026-03-06 Codeshare flight, operated by Delta Air Lines.(DL 2055)
Wed,Thu 17:55 Seattle-Tacoma (SEA) 23:59 Chicago O'Hare (ORD) 5 KLM KL 7378 Non-stop Airbus A220-300 (223) 4:04 Valid until 2026-01-01 Codeshare flight, operated by Delta Air Lines.(DL 2108)
Wed-Sat 00:14 Seattle-Tacoma (SEA) 06:07 Chicago O'Hare (ORD) 3 Royal Jordanian RJ 7392 Non-stop Boeing 737-800 (738) 3:53 Valid until 2026-01-03 Codeshare flight, operated by American Airlines.(AA 2442)
Daily 07:00 Seattle-Tacoma (SEA) 13:08 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Airbus A321neo (32Q) 4:08 Valid until 2026-01-09 Codeshare flight, operated by United Airlines.(UA 2618)
Daily 07:00 Seattle-Tacoma (SEA) 13:08 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Airbus A321neo (32Q) 4:08 Effective 2026-01-11 through 2026-01-23 Codeshare flight, operated by United Airlines.(UA 2618)
Mon-Fri,Sun 07:00 Seattle-Tacoma (SEA) 13:08 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Airbus A321neo (32Q) 4:08 Effective 2026-01-25 through 2026-02-06 Codeshare flight, operated by United Airlines.(UA 2618)
Mon-Wed,Sat,Sun 07:00 Seattle-Tacoma (SEA) 13:08 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Airbus A321neo (32Q) 4:08 Effective 2026-02-07 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 2618)
Daily 07:00 Seattle-Tacoma (SEA) 13:06 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Airbus A321neo (32Q) 4:06 Effective 2026-02-12 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 2451Z)
Daily 07:00 Seattle-Tacoma (SEA) 13:12 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Airbus A321neo (32Q) 4:12 Effective 2026-03-29 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 2284)
Daily 07:00 Seattle-Tacoma (SEA) 13:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-05-21 through 2026-10-24 Codeshare flight, operated by United Airlines.(UA 2284)
Sat 10:58 Seattle-Tacoma (SEA) 17:05 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Boeing 737-800 (738) 4:07 Operates only on 2026-01-10 Codeshare flight, operated by United Airlines.(UA 2467)
Sat 10:58 Seattle-Tacoma (SEA) 17:05 Chicago O'Hare (ORD) 1 Lufthansa LH 7507 Non-stop Boeing 737-800 (738) 4:07 Effective 2026-01-24 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 2467)
Sat 07:00 Seattle-Tacoma (SEA) 13:08 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Airbus A321neo (32Q) 4:08 Operates only on 2026-01-10 Codeshare flight, operated by United Airlines.(UA 747)
Sat 07:00 Seattle-Tacoma (SEA) 13:08 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Airbus A321neo (32Q) 4:08 Effective 2026-01-24 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 747)
Daily 07:00 Seattle-Tacoma (SEA) 13:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective from 2026-10-25 Codeshare flight, operated by United Airlines.(UA 2284)
Mon-Wed,Fri-Sun 10:52 Seattle-Tacoma (SEA) 17:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Airbus A320 (320) 4:08 Valid until 2026-01-04 Codeshare flight, operated by United Airlines.(UA 747)
Mon 10:52 Seattle-Tacoma (SEA) 17:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Airbus A319 (319) 4:08 Operates only on 2026-01-05 Codeshare flight, operated by United Airlines.(UA 747)
Daily 10:55 Seattle-Tacoma (SEA) 17:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737 MAX 9 (7M9) 4:05 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 1398Z)
Thu-Sat 10:55 Seattle-Tacoma (SEA) 17:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-900 (739) 4:05 Effective 2026-03-05 through 2026-03-07 Codeshare flight, operated by United Airlines.(UA 747Z)
Sat 10:55 Seattle-Tacoma (SEA) 17:00 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-900 (739) 4:05 Operates only on 2026-03-28 Codeshare flight, operated by United Airlines.(UA 747Z)
Thu 10:57 Seattle-Tacoma (SEA) 17:02 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-800 (738) 4:05 Valid until 2026-01-01 Codeshare flight, operated by United Airlines.(UA 747)
Sat 10:58 Seattle-Tacoma (SEA) 17:05 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-800 (738) 4:07 Operates only on 2026-01-17 Codeshare flight, operated by United Airlines.(UA 2467)
Sat 10:58 Seattle-Tacoma (SEA) 17:05 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-800 (738) 4:07 Operates only on 2026-02-07 Codeshare flight, operated by United Airlines.(UA 2467)
Mon-Fri,Sun 14:10 Seattle-Tacoma (SEA) 20:17 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-800 (738) 4:07 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 2340)
Daily 14:14 Seattle-Tacoma (SEA) 20:25 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737 MAX 8 (7M8) 4:11 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 2101)
Daily 14:15 Seattle-Tacoma (SEA) 20:20 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-900 (739) 4:05 Effective 2026-05-21 through 2026-10-24 Codeshare flight, operated by United Airlines.(UA 2101)
Daily 14:16 Seattle-Tacoma (SEA) 20:25 Chicago O'Hare (ORD) 1 Lufthansa LH 7537 Non-stop Boeing 737-800 (738) 4:09 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 2101)
Daily 00:05 Seattle-Tacoma (SEA) 06:05 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:00 Effective 2026-05-22 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 2881)
Wed 11:32 Seattle-Tacoma (SEA) 17:55 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:23 Operates only on 2026-09-09 Codeshare flight, operated by American Airlines.(AA 3334)
Daily 11:34 Seattle-Tacoma (SEA) 17:55 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:21 Effective from 2026-10-05 Codeshare flight, operated by American Airlines.(AA 2312)
Thu-Sun 23:20 Seattle-Tacoma (SEA) 05:25 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:05 Effective 2026-03-08 through 2026-03-15 Codeshare flight, operated by American Airlines.(AA 1106) The flight arrives 1 day after departure.
Mon,Wed-Sun 23:20 Seattle-Tacoma (SEA) 05:25 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:05 Effective 2026-03-16 through 2026-04-06 Codeshare flight, operated by American Airlines.(AA 1106) The flight arrives 1 day after departure.
Tue 23:50 Seattle-Tacoma (SEA) 05:54 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:04 Effective 2026-03-10 through 2026-03-31 Codeshare flight, operated by American Airlines.(AA 1106) The flight arrives 1 day after departure.
Daily 23:59 Seattle-Tacoma (SEA) 06:04 Chicago O'Hare (ORD) 3 Aer Lingus EI 7548 Non-stop Airbus A321 (321) 4:05 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 2534) The flight arrives 1 day after departure.
Daily 07:00 Seattle-Tacoma (SEA) 13:05 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Boeing 737-800 (738) 4:05 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 885)
Daily 07:15 Seattle-Tacoma (SEA) 13:25 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Boeing 737-800 (738) 4:10 Effective 2026-02-12 through 2026-03-07 Codeshare flight, operated by American Airlines.(AA 885)
Daily 07:15 Seattle-Tacoma (SEA) 13:28 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Boeing 737-800 (738) 4:13 Effective 2026-03-08 through 2026-04-06 Codeshare flight, operated by American Airlines.(AA 885)
Daily 08:04 Seattle-Tacoma (SEA) 14:15 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Boeing 737-800 (738) 4:11 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by American Airlines.(AA 851)
Daily 11:46 Seattle-Tacoma (SEA) 17:55 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Airbus A321 (321) 4:09 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 2523)
Daily 13:30 Seattle-Tacoma (SEA) 19:45 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Boeing 737-800 (738) 4:15 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 2523)
Daily 13:32 Seattle-Tacoma (SEA) 19:40 Chicago O'Hare (ORD) 3 Aer Lingus EI 7600 Non-stop Boeing 737-800 (738) 4:08 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 1827)
Daily 00:34 Seattle-Tacoma (SEA) 06:40 Chicago O'Hare (ORD) 3 Aer Lingus EI 7666 Non-stop Airbus A321 (321) 4:06 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 3029)
Wed 13:23 Seattle-Tacoma (SEA) 19:34 Chicago O'Hare (ORD) 3 Aer Lingus EI 7666 Non-stop Boeing 737-800 (738) 4:11 Operates only on 2026-03-04 Codeshare flight, operated by American Airlines.(AA 2398)
Daily 13:24 Seattle-Tacoma (SEA) 19:45 Chicago O'Hare (ORD) 3 Aer Lingus EI 7666 Non-stop Airbus A321 (321) 4:21 Effective 2026-09-09 through 2026-10-04 Codeshare flight, operated by American Airlines.(AA 2966)
Daily 13:31 Seattle-Tacoma (SEA) 19:45 Chicago O'Hare (ORD) 3 Aer Lingus EI 7666 Non-stop Boeing 737-800 (738) 4:14 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 2520)
Daily 13:33 Seattle-Tacoma (SEA) 19:49 Chicago O'Hare (ORD) 3 Aer Lingus EI 7666 Non-stop Boeing 737 (737) 4:16 Effective 2026-04-08 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 2741)

1 2 3 ... 11 12 13 14 15 16

A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Chicago O'Hare airport (ORD).
The flight distance is 1715 miles, or 2760 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:45 and 4:27.

Return (ORD-SEA) flights

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All airlines flying from Seattle-Tacoma (SEA) to Chicago O'Hare (ORD).

FLIGHT SCHEDULE

Direct Codeshare Flights:

Aer Lingus EI7359

11:20

Seattle-Tacoma (SEA)

17:38

Chicago O'Hare (ORD) 3

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by American Airlines. (AA 2471)

Duration: 4:18, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7359

11:51

Seattle-Tacoma (SEA)

17:55

Chicago O'Hare (ORD) 3

Effective 2026-04-07 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2775)

Duration: 4:04, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

KLM KL7378

07:10

Seattle-Tacoma (SEA)

13:20

Chicago O'Hare (ORD) 5

Valid until 2026-01-04

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2055)

Duration: 4:10, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

KLM KL7378

07:10

Seattle-Tacoma (SEA)

13:22

Chicago O'Hare (ORD) 5

Effective 2026-01-05 through 2026-02-27

Mon

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 2055)

Duration: 4:12, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

KLM KL7378

07:10

Seattle-Tacoma (SEA)

13:22

Chicago O'Hare (ORD) 5

Effective 2026-03-01 through 2026-03-06

Mon

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2055)

Duration: 4:12, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

KLM KL7378

17:55

Seattle-Tacoma (SEA)

23:59

Chicago O'Hare (ORD) 5

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 2108)

Duration: 4:04, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Royal Jordanian RJ7392

00:14

Seattle-Tacoma (SEA)

06:07

Chicago O'Hare (ORD) 3

Valid until 2026-01-03

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by American Airlines. (AA 2442)

Duration: 3:53, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:08

Chicago O'Hare (ORD) 1

Valid until 2026-01-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2618)

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:08

Chicago O'Hare (ORD) 1

Effective 2026-01-11 through 2026-01-23

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2618)

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:08

Chicago O'Hare (ORD) 1

Effective 2026-01-25 through 2026-02-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2618)

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:08

Chicago O'Hare (ORD) 1

Effective 2026-02-07 through 2026-02-11

Mon

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2618)

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:06

Chicago O'Hare (ORD) 1

Effective 2026-02-12 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines.(UA 2451Z)

Duration: 4:06, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:12

Chicago O'Hare (ORD) 1

Effective 2026-03-29 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2284)

Duration: 4:12, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7507

07:00

Seattle-Tacoma (SEA)

13:00

Chicago O'Hare (ORD) 1

Effective 2026-05-21 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2284)

Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Lufthansa LH7507

10:58

Seattle-Tacoma (SEA)

17:05

Chicago O'Hare (ORD) 1

Operates only on 2026-01-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2467)

Duration: 4:07, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7507

10:58

Seattle-Tacoma (SEA)

17:05

Chicago O'Hare (ORD) 1

Effective 2026-01-24 through 2026-01-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2467)

Duration: 4:07, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7537

07:00

Seattle-Tacoma (SEA)

13:08

Chicago O'Hare (ORD) 1

Operates only on 2026-01-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 747)

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7537

07:00

Seattle-Tacoma (SEA)

13:08

Chicago O'Hare (ORD) 1

Effective 2026-01-24 through 2026-01-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 747)

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Lufthansa LH7537

07:00

Seattle-Tacoma (SEA)

13:00

Chicago O'Hare (ORD) 1

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2284)

Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Lufthansa LH7537

10:52

Seattle-Tacoma (SEA)

17:00

Chicago O'Hare (ORD) 1

Valid until 2026-01-04

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 747)

Duration: 4:08, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Lufthansa LH7537

10:52

Seattle-Tacoma (SEA)

17:00

Chicago O'Hare (ORD) 1

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 747)

Duration: 4:08, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Lufthansa LH7537

10:55

Seattle-Tacoma (SEA)

17:00

Chicago O'Hare (ORD) 1

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines.(UA 1398Z)

Duration: 4:05, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Lufthansa LH7537

10:55

Seattle-Tacoma (SEA)

17:00

Chicago O'Hare (ORD) 1

Effective 2026-03-05 through 2026-03-07

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines.(UA 747Z)

Duration: 4:05, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Lufthansa LH7537

10:55

Seattle-Tacoma (SEA)

17:00

Chicago O'Hare (ORD) 1

Operates only on 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines.(UA 747Z)

Duration: 4:05, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Lufthansa LH7537

10:57

Seattle-Tacoma (SEA)

17:02

Chicago O'Hare (ORD) 1

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 747)

Duration: 4:05, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7537

10:58

Seattle-Tacoma (SEA)

17:05

Chicago O'Hare (ORD) 1

Operates only on 2026-01-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2467)

Duration: 4:07, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7537

10:58

Seattle-Tacoma (SEA)

17:05

Chicago O'Hare (ORD) 1

Operates only on 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2467)

Duration: 4:07, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7537

14:10

Seattle-Tacoma (SEA)

20:17

Chicago O'Hare (ORD) 1

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2340)

Duration: 4:07, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Lufthansa LH7537

14:14

Seattle-Tacoma (SEA)

20:25

Chicago O'Hare (ORD) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2101)

Duration: 4:11, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Lufthansa LH7537

14:15

Seattle-Tacoma (SEA)

20:20

Chicago O'Hare (ORD) 1

Effective 2026-05-21 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2101)

Duration: 4:05, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Lufthansa LH7537

14:16

Seattle-Tacoma (SEA)

20:25

Chicago O'Hare (ORD) 1

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2101)

Duration: 4:09, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7548

00:05

Seattle-Tacoma (SEA)

06:05

Chicago O'Hare (ORD) 3

Effective 2026-05-22 through 2026-07-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2881)

Duration: 4:00, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Aer Lingus EI7548

11:32

Seattle-Tacoma (SEA)

17:55

Chicago O'Hare (ORD) 3

Operates only on 2026-09-09

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by American Airlines. (AA 3334)

Duration: 4:23, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Aer Lingus EI7548

11:34

Seattle-Tacoma (SEA)

17:55

Chicago O'Hare (ORD) 3

Effective from 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2312)

Duration: 4:21, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Aer Lingus EI7548

23:20

Seattle-Tacoma (SEA)

05:25(+1)

Chicago O'Hare (ORD) 3

Effective 2026-03-08 through 2026-03-15

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 1106)

Duration: 4:05, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Aer Lingus EI7548

23:20

Seattle-Tacoma (SEA)

05:25(+1)

Chicago O'Hare (ORD) 3

Effective 2026-03-16 through 2026-04-06

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 1106)

Duration: 4:05, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Aer Lingus EI7548

23:50

Seattle-Tacoma (SEA)

05:54(+1)

Chicago O'Hare (ORD) 3

Effective 2026-03-10 through 2026-03-31

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by American Airlines. (AA 1106)

Duration: 4:04, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Aer Lingus EI7548

23:59

Seattle-Tacoma (SEA)

06:04(+1)

Chicago O'Hare (ORD) 3

Effective 2026-07-02 through 2026-08-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2534)

Duration: 4:05, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Aer Lingus EI7600

07:00

Seattle-Tacoma (SEA)

13:05

Chicago O'Hare (ORD) 3

Effective 2026-04-07 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 885)

Duration: 4:05, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7600

07:15

Seattle-Tacoma (SEA)

13:25

Chicago O'Hare (ORD) 3

Effective 2026-02-12 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 885)

Duration: 4:10, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7600

07:15

Seattle-Tacoma (SEA)

13:28

Chicago O'Hare (ORD) 3

Effective 2026-03-08 through 2026-04-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 885)

Duration: 4:13, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7600

08:04

Seattle-Tacoma (SEA)

14:15

Chicago O'Hare (ORD) 3

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 851)

Duration: 4:11, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7600

11:46

Seattle-Tacoma (SEA)

17:55

Chicago O'Hare (ORD) 3

Effective 2026-05-21 through 2026-07-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2523)

Duration: 4:09, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Aer Lingus EI7600

13:30

Seattle-Tacoma (SEA)

19:45

Chicago O'Hare (ORD) 3

Effective 2026-07-02 through 2026-08-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2523)

Duration: 4:15, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7600

13:32

Seattle-Tacoma (SEA)

19:40

Chicago O'Hare (ORD) 3

Effective 2026-08-05 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 1827)

Duration: 4:08, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7666

00:34

Seattle-Tacoma (SEA)

06:40

Chicago O'Hare (ORD) 3

Effective 2026-08-05 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 3029)

Duration: 4:06, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Aer Lingus EI7666

13:23

Seattle-Tacoma (SEA)

19:34

Chicago O'Hare (ORD) 3

Operates only on 2026-03-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by American Airlines. (AA 2398)

Duration: 4:11, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7666

13:24

Seattle-Tacoma (SEA)

19:45

Chicago O'Hare (ORD) 3

Effective 2026-09-09 through 2026-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2966)

Duration: 4:21, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Aer Lingus EI7666

13:31

Seattle-Tacoma (SEA)

19:45

Chicago O'Hare (ORD) 3

Effective 2026-05-21 through 2026-07-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2520)

Duration: 4:14, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Aer Lingus EI7666

13:33

Seattle-Tacoma (SEA)

19:49

Chicago O'Hare (ORD) 3

Effective 2026-04-08 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by American Airlines. (AA 2741)

Duration: 4:16, non-stop
Boeing 737 (737)

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A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Chicago O'Hare airport (ORD).
The flight distance is 1715 miles, or 2760 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:45 and 4:27.

Return (ORD-SEA) flights

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