Qatar Airways flights from Ontario, Los Angeles (ONT) to Seattle-Tacoma (SEA).

FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 06:00 Ontario, Los Angeles (ONT) 2 08:42 Seattle-Tacoma (SEA) Qatar Airways QR 2107 Non-stop Boeing 737 (73J) 2:42 Effective 2026-05-13 through 2026-06-09 Codeshare flight, operated by Alaska Airlines.(AS 599)
Daily 11:51 Ontario, Los Angeles (ONT) 2 14:35 Seattle-Tacoma (SEA) Qatar Airways QR 2110 Non-stop Boeing 737 (73J) 2:44 Effective 2026-05-13 through 2026-06-09 Codeshare flight, operated by Alaska Airlines.(AS 706)
Daily 06:00 Ontario, Los Angeles (ONT) 2 08:44 Seattle-Tacoma (SEA) Qatar Airways QR 2126 Non-stop Boeing 737 (73J) 2:44 Effective from 2026-06-10 Codeshare flight, operated by Alaska Airlines.(AS 532)
Daily 12:00 Ontario, Los Angeles (ONT) 2 14:41 Seattle-Tacoma (SEA) Qatar Airways QR 2127 Non-stop Boeing 737 (73J) 2:41 Effective from 2026-06-10 Codeshare flight, operated by Alaska Airlines.(AS 1363)
Tue,Fri 06:00 Ontario, Los Angeles (ONT) 2 08:57 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:57 Valid until 2026-01-02 Codeshare flight, operated by Alaska Airlines.(AS 607)
Tue-Thu,Sat,Sun 06:00 Ontario, Los Angeles (ONT) 2 08:57 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:57 Valid until 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon 06:00 Ontario, Los Angeles (ONT) 2 08:57 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737-800 (73H) 2:57 Operates only on 2026-01-05 Codeshare flight, operated by Alaska Airlines.(AS 607)
Thu,Sun 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:54 Effective 2026-01-08 through 2026-01-15 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon,Fri 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:54 Effective 2026-01-09 through 2026-01-12 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon,Fri,Sun 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:54 Effective 2026-01-16 through 2026-01-25 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon,Thu 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:54 Effective 2026-01-22 through 2026-01-26 Codeshare flight, operated by Alaska Airlines.(AS 607)
Thu 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:54 Effective 2026-01-29 through 2026-02-05 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon,Fri,Sun 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:54 Effective 2026-01-30 through 2026-02-02 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon,Fri,Sun 06:00 Ontario, Los Angeles (ONT) 2 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:54 Effective 2026-02-06 through 2026-02-09 Codeshare flight, operated by Alaska Airlines.(AS 607)
Daily 06:00 Ontario, Los Angeles (ONT) 2 08:50 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:50 Effective 2026-03-18 through 2026-05-12 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon-Thu,Sat 06:14 Ontario, Los Angeles (ONT) 2 09:09 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:55 Effective 2026-02-12 through 2026-02-18 Codeshare flight, operated by Alaska Airlines.(AS 607)
Thu,Fri,Sun 06:14 Ontario, Los Angeles (ONT) 2 09:09 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:55 Effective 2026-02-13 through 2026-02-26 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon-Wed,Fri,Sat 06:14 Ontario, Los Angeles (ONT) 2 09:09 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:55 Effective 2026-02-21 through 2026-03-07 Codeshare flight, operated by Alaska Airlines.(AS 607)
Thu,Sun 06:14 Ontario, Los Angeles (ONT) 2 09:09 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:55 Effective 2026-03-01 through 2026-03-05 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon-Wed,Fri-Sun 06:14 Ontario, Los Angeles (ONT) 2 09:09 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 MAX 9 (7M9) 2:55 Effective 2026-03-08 through 2026-03-16 Codeshare flight, operated by Alaska Airlines.(AS 607)
Tue,Thu 06:14 Ontario, Los Angeles (ONT) 2 09:09 Seattle-Tacoma (SEA) Qatar Airways QR 2182 Non-stop Boeing 737 (73J) 2:55 Effective 2026-03-12 through 2026-03-17 Codeshare flight, operated by Alaska Airlines.(AS 607)
Mon-Thu,Sun 10:44 Ontario, Los Angeles (ONT) 2 13:35 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:51 Valid until 2026-01-04 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Fri 10:44 Ontario, Los Angeles (ONT) 2 13:35 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Effective 2026-01-02 through 2026-01-05 Codeshare flight, operated by Alaska Airlines.(AS 654)
Tue 10:44 Ontario, Los Angeles (ONT) 2 13:35 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:51 Operates only on 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 654)
Sat 11:00 Ontario, Los Angeles (ONT) 2 13:51 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Operates only on 2026-01-03 Codeshare flight, operated by Alaska Airlines.(AS 654)
Wed 11:30 Ontario, Los Angeles (ONT) 2 14:20 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:50 Operates only on 2026-03-18 Codeshare flight, operated by Alaska Airlines.(AS 654)
Daily 11:30 Ontario, Los Angeles (ONT) 2 14:19 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:49 Effective 2026-03-19 through 2026-05-12 Codeshare flight, operated by Alaska Airlines.(AS 654)
Tue,Wed,Fri,Sat 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:51 Effective 2026-01-07 through 2026-01-14 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Thu,Sun 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Effective 2026-01-08 through 2026-01-12 Codeshare flight, operated by Alaska Airlines.(AS 654)
Tue-Sat 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:51 Effective 2026-01-15 through 2026-02-07 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Sun 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Effective 2026-01-18 through 2026-02-08 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:51 Operates only on 2026-02-09 Codeshare flight, operated by Alaska Airlines.(AS 654)
Tue 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737-800 (73H) 2:51 Operates only on 2026-02-10 Codeshare flight, operated by Alaska Airlines.(AS 654)
Wed 11:53 Ontario, Los Angeles (ONT) 2 14:44 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Operates only on 2026-02-11 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Wed,Thu 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:50 Effective 2026-02-12 through 2026-02-18 Codeshare flight, operated by Alaska Airlines.(AS 654)
Thu-Sun 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-02-13 through 2026-02-22 Codeshare flight, operated by Alaska Airlines.(AS 654)
Tue 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Operates only on 2026-02-17 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Wed 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:50 Effective 2026-02-23 through 2026-03-04 Codeshare flight, operated by Alaska Airlines.(AS 654)
Tue,Thu-Sun 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-02-24 through 2026-03-05 Codeshare flight, operated by Alaska Airlines.(AS 654)
Wed,Fri 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-03-06 through 2026-03-11 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Sat 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-03-07 through 2026-03-09 Codeshare flight, operated by Alaska Airlines.(AS 654)
Sun 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737 (73J) 2:50 Effective 2026-03-08 through 2026-03-15 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Tue,Thu-Sat 12:02 Ontario, Los Angeles (ONT) 2 14:52 Seattle-Tacoma (SEA) Qatar Airways QR 2186 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-03-10 through 2026-03-17 Codeshare flight, operated by Alaska Airlines.(AS 654)
Mon,Tue 19:19 Ontario, Los Angeles (ONT) 2 22:10 Seattle-Tacoma (SEA) Qatar Airways QR 3345 Non-stop Boeing 737 (73J) 2:51 Valid until 2026-01-05 Codeshare flight, operated by Alaska Airlines.(AS 594)
Fri,Sun 19:19 Ontario, Los Angeles (ONT) 2 22:10 Seattle-Tacoma (SEA) Qatar Airways QR 3345 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Effective 2026-01-02 through 2026-01-04 Codeshare flight, operated by Alaska Airlines.(AS 594)
Tue 19:19 Ontario, Los Angeles (ONT) 2 22:10 Seattle-Tacoma (SEA) Qatar Airways QR 3345 Non-stop Boeing 737-800 (73H) 2:51 Operates only on 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 594)

A domestic route departing from the Ontario, Los Angeles airport (ONT) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 956 miles, or 1539 km.
The timezone of both the departure and the arrival airports is UTC-8 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 2:41 and 2:57.

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Qatar Airways QR2107

06:00

Ontario, Los Angeles (ONT) 2

08:42

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 599)

Duration: 2:42, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2110

11:51

Ontario, Los Angeles (ONT) 2

14:35

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 706)

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2126

06:00

Ontario, Los Angeles (ONT) 2

08:44

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 532)

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2127

12:00

Ontario, Los Angeles (ONT) 2

14:41

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 1363)

Duration: 2:41, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:57

Seattle-Tacoma (SEA)

Valid until 2026-01-02

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:57, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:57

Seattle-Tacoma (SEA)

Valid until 2026-01-06

Mon
-

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:57, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:57

Seattle-Tacoma (SEA)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:57, non-stop
Boeing 737-800 (73H)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-01-08 through 2026-01-15

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-01-09 through 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-01-16 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-01-22 through 2026-01-26

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-01-29 through 2026-02-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-01-30 through 2026-02-02

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:54

Seattle-Tacoma (SEA)

Effective 2026-02-06 through 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:54, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:00

Ontario, Los Angeles (ONT) 2

08:50

Seattle-Tacoma (SEA)

Effective 2026-03-18 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:14

Ontario, Los Angeles (ONT) 2

09:09

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-02-18

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:55, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:14

Ontario, Los Angeles (ONT) 2

09:09

Seattle-Tacoma (SEA)

Effective 2026-02-13 through 2026-02-26

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:55, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:14

Ontario, Los Angeles (ONT) 2

09:09

Seattle-Tacoma (SEA)

Effective 2026-02-21 through 2026-03-07

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:55, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:14

Ontario, Los Angeles (ONT) 2

09:09

Seattle-Tacoma (SEA)

Effective 2026-03-01 through 2026-03-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:55, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2182

06:14

Ontario, Los Angeles (ONT) 2

09:09

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-16

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:55, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2182

06:14

Ontario, Los Angeles (ONT) 2

09:09

Seattle-Tacoma (SEA)

Effective 2026-03-12 through 2026-03-17

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 607)

Duration: 2:55, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

10:44

Ontario, Los Angeles (ONT) 2

13:35

Seattle-Tacoma (SEA)

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

10:44

Ontario, Los Angeles (ONT) 2

13:35

Seattle-Tacoma (SEA)

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

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

10:44

Ontario, Los Angeles (ONT) 2

13:35

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

11:00

Ontario, Los Angeles (ONT) 2

13:51

Seattle-Tacoma (SEA)

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

11:30

Ontario, Los Angeles (ONT) 2

14:20

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

11:30

Ontario, Los Angeles (ONT) 2

14:19

Seattle-Tacoma (SEA)

Effective 2026-03-19 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:49, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Effective 2026-01-07 through 2026-01-14

Mon
-

Tue

Wed

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Effective 2026-01-08 through 2026-01-12

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Effective 2026-01-15 through 2026-02-07

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Effective 2026-01-18 through 2026-02-08

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Operates only on 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737-800 (73H)

Direct Codeshare Flights:

Qatar Airways QR2186

11:53

Ontario, Los Angeles (ONT) 2

14:44

Seattle-Tacoma (SEA)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:51, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-02-18

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-02-13 through 2026-02-22

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Operates only on 2026-02-17

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-02-23 through 2026-03-04

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-02-24 through 2026-03-05

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-03-06 through 2026-03-11

Mon
-

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-03-07 through 2026-03-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR2186

12:02

Ontario, Los Angeles (ONT) 2

14:52

Seattle-Tacoma (SEA)

Effective 2026-03-10 through 2026-03-17

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 654)

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Codeshare Flights:

Qatar Airways QR3345

19:19

Ontario, Los Angeles (ONT) 2

22:10

Seattle-Tacoma (SEA)

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 594)

Duration: 2:51, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Qatar Airways QR3345

19:19

Ontario, Los Angeles (ONT) 2

22:10

Seattle-Tacoma (SEA)

Effective 2026-01-02 through 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 594)

Duration: 2:51, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Qatar Airways QR3345

19:19

Ontario, Los Angeles (ONT) 2

22:10

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 594)

Duration: 2:51, non-stop
Boeing 737-800 (73H)

A domestic route departing from the Ontario, Los Angeles airport (ONT) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 956 miles, or 1539 km.
The timezone of both the departure and the arrival airports is UTC-8 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 2:41 and 2:57.

All ONT-SEA flights

All Qatar Airways flights

Return (SEA-ONT) flights

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