United Airlines flights from Chicago O'Hare (ORD) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 21:16 Chicago O'Hare (ORD) 1 23:59 Seattle-Tacoma (SEA)
United Airlines UA 1001 Non-stop Boeing 737 MAX 8 (7M8) 4:43 Effective 2025-06-26 through 2025-07-03
Daily 21:16 Chicago O'Hare (ORD) 1 23:59 Seattle-Tacoma (SEA)
United Airlines UA 1001 Non-stop Boeing 737 MAX 8 (7M8) 4:43 Effective 2025-07-05 through 2025-07-31
Mon,Thu-Sun 07:10 Chicago O'Hare (ORD) 1 09:45 Seattle-Tacoma (SEA)
United Airlines UA 1005 Non-stop Airbus A321neo (32Q) 4:35 Effective 2025-08-21 through 2025-09-01
Mon,Tue,Thu-Sun 07:10 Chicago O'Hare (ORD) 1 09:45 Seattle-Tacoma (SEA)
United Airlines UA 1005 Non-stop Airbus A321neo (32Q) 4:35 Effective 2025-09-02 through 2025-09-08
Mon,Thu-Sun 07:10 Chicago O'Hare (ORD) 1 09:45 Seattle-Tacoma (SEA)
United Airlines UA 1005 Non-stop Airbus A321neo (32Q) 4:35 Effective 2025-09-11 through 2025-09-22
Daily 08:45 Chicago O'Hare (ORD) 1 11:25 Seattle-Tacoma (SEA)
United Airlines UA 1414 Non-stop Airbus A321neo (32Q) 4:40 Valid until 2025-05-21
Daily 08:45 Chicago O'Hare (ORD) 1 11:32 Seattle-Tacoma (SEA)
United Airlines UA 1414 Non-stop Airbus A321neo (32Q) 4:47 Effective 2025-05-22 through 2025-06-25
Daily 12:55 Chicago O'Hare (ORD) 1 15:32 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:37 Effective 2025-08-19 through 2025-09-24
Daily 13:05 Chicago O'Hare (ORD) 1 15:42 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:37 Effective 2025-09-25 through 2025-10-25
Daily 13:15 Chicago O'Hare (ORD) 1 15:58 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:43 Effective 2025-12-02 through 2026-01-05
Sun 13:23 Chicago O'Hare (ORD) 1 16:05 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:42 Operates only on 2025-05-25
Daily 13:30 Chicago O'Hare (ORD) 1 16:13 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:43 Effective 2026-01-06 through 2026-02-11
Thu 13:38 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-900 (739) 4:42 Operates only on 2025-05-01
Daily 13:40 Chicago O'Hare (ORD) 1 16:22 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Airbus A320 (320) 4:42 Effective 2025-05-02 through 2025-05-21
Mon-Thu,Sat 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-900 (739) 4:40 Effective 2025-05-22 through 2025-05-29
Daily 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-900 (739) 4:40 Effective 2025-05-30 through 2025-06-21
Sun 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737 MAX 8 (7M8) 4:40 Operates only on 2025-06-22
Mon-Wed 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-900 (739) 4:40 Effective 2025-06-23 through 2025-06-25
Mon-Thu,Sun 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:40 Effective 2025-06-26 through 2025-08-18
Fri 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Operates only on 2025-06-27
Fri,Sat 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Airbus A319 (319) 4:40 Effective 2025-06-28 through 2025-07-05
Fri 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-07-11 through 2025-08-15
Sat 13:40 Chicago O'Hare (ORD) 1 16:20 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Airbus A319 (319) 4:40 Effective 2025-07-12 through 2025-08-16
Fri 13:42 Chicago O'Hare (ORD) 1 16:24 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Airbus A321neo (32Q) 4:42 Operates only on 2025-05-23
Daily 13:55 Chicago O'Hare (ORD) 1 16:38 Seattle-Tacoma (SEA)
United Airlines UA 1485 Non-stop Boeing 737-800 (738) 4:43 Effective 2025-10-26 through 2025-12-01
Daily 08:45 Chicago O'Hare (ORD) 1 11:31 Seattle-Tacoma (SEA)
United Airlines UA 1620 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-08-19 through 2025-10-25
Daily 08:50 Chicago O'Hare (ORD) 1 11:37 Seattle-Tacoma (SEA)
United Airlines UA 1620 Non-stop Airbus A321neo (32Q) 4:47 Effective 2025-06-26 through 2025-08-18
Daily 08:50 Chicago O'Hare (ORD) 1 11:40 Seattle-Tacoma (SEA)
United Airlines UA 1620 Non-stop Boeing 737 MAX 9 (7M9) 4:50 Effective from 2025-10-26
Daily 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Boeing 737-800 (738) 4:40 Effective 2025-05-22 through 2025-06-02
Tue,Wed 07:10 Chicago O'Hare (ORD) 1 09:49 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Airbus A321neo (32Q) 4:39 Effective 2025-06-03 through 2025-06-25
Mon,Thu,Fri 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Boeing 737-800 (738) 4:40 Effective 2025-06-05 through 2025-06-23
Sat 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Airbus A319 (319) 4:40 Operates only on 2025-06-07
Sat,Sun 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Boeing 737-700 (73G) 4:40 Effective 2025-06-08 through 2025-06-22
Mon,Thu,Fri 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Boeing 737-900 (739) 4:40 Effective 2025-06-26 through 2025-08-18
Sat,Sun 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Boeing 737-800 (738) 4:40 Effective 2025-06-28 through 2025-08-17
Tue,Wed 07:10 Chicago O'Hare (ORD) 1 09:50 Seattle-Tacoma (SEA)
United Airlines UA 1643 Non-stop Airbus A321neo (32Q) 4:40 Effective 2025-07-01 through 2025-08-13
Tue,Wed 07:10 Chicago O'Hare (ORD) 1 09:45 Seattle-Tacoma (SEA)
United Airlines UA 2131 Non-stop Airbus A321neo (32Q) 4:35 Effective 2025-08-19 through 2025-08-27
Tue,Wed 07:10 Chicago O'Hare (ORD) 1 09:45 Seattle-Tacoma (SEA)
United Airlines UA 2131 Non-stop Airbus A321neo (32Q) 4:35 Effective 2025-09-03 through 2025-09-24
Daily 07:10 Chicago O'Hare (ORD) 1 09:43 Seattle-Tacoma (SEA)
United Airlines UA 2131 Non-stop Boeing 737-900 (739) 4:33 Effective 2025-09-25 through 2025-10-25
Daily 21:16 Chicago O'Hare (ORD) 1 23:59 Seattle-Tacoma (SEA)
United Airlines UA 2200 Non-stop Boeing 737 MAX 8 (7M8) 4:43 Effective 2025-08-01 through 2025-08-18
Daily 19:35 Chicago O'Hare (ORD) 1 22:18 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737 MAX 9 (7M9) 4:43 Effective 2025-09-25 through 2025-10-25
Daily 19:45 Chicago O'Hare (ORD) 1 22:28 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737-900 (739) 4:43 Effective 2025-08-19 through 2025-09-24
Daily 19:55 Chicago O'Hare (ORD) 1 22:29 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737 MAX 8 (7M8) 4:34 Effective from 2025-10-26
Thu 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737-900 (739) 4:43 Operates only on 2025-05-01
Mon-Sat 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737 MAX 8 (7M8) 4:43 Effective 2025-05-02 through 2025-05-20
Wed-Sat 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737-800 (738) 4:43 Effective 2025-05-21 through 2025-05-31
Sun 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737 MAX 8 (7M8) 4:43 Operates only on 2025-05-25
Mon,Tue 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Airbus A320 (320) 4:43 Effective 2025-05-26 through 2025-05-27
Mon-Thu,Sun 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Boeing 737-800 (738) 4:43 Effective 2025-06-01 through 2025-06-19
Fri 19:59 Chicago O'Hare (ORD) 1 22:42 Seattle-Tacoma (SEA)
United Airlines UA 2211 Non-stop Airbus A319 (319) 4:43 Effective 2025-06-06 through 2025-06-13
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United Airlines flights from Chicago O'Hare (ORD) to Seattle-Tacoma (SEA).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-07-05 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-08-21 through 2025-09-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 4:35, non-stop
Airbus A321neo (32Q)

Effective 2025-09-02 through 2025-09-08
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 4:35, non-stop
Airbus A321neo (32Q)

Effective 2025-09-11 through 2025-09-22
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 4:35, non-stop
Airbus A321neo (32Q)

Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Airbus A321neo (32Q)

Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:47, non-stop
Airbus A321neo (32Q)

Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:37, non-stop
Boeing 737-800 (738)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:37, non-stop
Boeing 737-800 (738)

Effective 2025-12-02 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737-800 (738)

Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:42, non-stop
Boeing 737-800 (738)

Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737-800 (738)

Operates only on 2025-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:42, non-stop
Boeing 737-900 (739)

Effective 2025-05-02 through 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:42, non-stop
Airbus A320 (320)

Effective 2025-05-22 through 2025-05-29
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Duration: 4:40, non-stop
Boeing 737-900 (739)

Effective 2025-05-30 through 2025-06-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Boeing 737-900 (739)

Operates only on 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:40, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-06-23 through 2025-06-25
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737-900 (739)

Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 4:40, non-stop
Boeing 737-800 (738)

Operates only on 2025-06-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737 MAX 9 (7M9)

Effective 2025-06-28 through 2025-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Duration: 4:40, non-stop
Airbus A319 (319)

Effective 2025-07-11 through 2025-08-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737 MAX 9 (7M9)

Effective 2025-07-12 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:40, non-stop
Airbus A319 (319)

Operates only on 2025-05-23
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:42, non-stop
Airbus A321neo (32Q)

Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737-800 (738)

Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:46, non-stop
Airbus A321neo (32Q)

Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:47, non-stop
Airbus A321neo (32Q)

Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:50, non-stop
Boeing 737 MAX 9 (7M9)

Effective 2025-05-22 through 2025-06-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Boeing 737-800 (738)

Effective 2025-06-03 through 2025-06-25
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:39, non-stop
Airbus A321neo (32Q)

Effective 2025-06-05 through 2025-06-23
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737-800 (738)

Operates only on 2025-06-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:40, non-stop
Airbus A319 (319)

Effective 2025-06-08 through 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 4:40, non-stop
Boeing 737-700 (73G)

Effective 2025-06-26 through 2025-08-18
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737-900 (739)

Effective 2025-06-28 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 4:40, non-stop
Boeing 737-800 (738)

Effective 2025-07-01 through 2025-08-13
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:40, non-stop
Airbus A321neo (32Q)

Effective 2025-08-19 through 2025-08-27
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:35, non-stop
Airbus A321neo (32Q)

Effective 2025-09-03 through 2025-09-24
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:35, non-stop
Airbus A321neo (32Q)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:33, non-stop
Boeing 737-900 (739)

Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737 MAX 9 (7M9)

Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:43, non-stop
Boeing 737-900 (739)

Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:34, non-stop
Boeing 737 MAX 8 (7M8)

Operates only on 2025-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:43, non-stop
Boeing 737-900 (739)

Effective 2025-05-02 through 2025-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 4:43, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-05-21 through 2025-05-31
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Duration: 4:43, non-stop
Boeing 737-800 (738)

Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:43, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-05-26 through 2025-05-27
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:43, non-stop
Airbus A320 (320)

Effective 2025-06-01 through 2025-06-19
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 4:43, non-stop
Boeing 737-800 (738)

Effective 2025-06-06 through 2025-06-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:43, non-stop
Airbus A319 (319)
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  • A domestic route departing from the Chicago O'Hare airport (ORD) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 1715 miles, or 2760 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . 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 4:33 and 4:50.