Alaska Airlines flights from Ontario, Los Angeles (ONT) to Seattle-Tacoma (SEA).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Mon,Thu-Sun
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-02-23 through 2026-03-02 |
| Tue,Wed
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 (73J) 2:50 Effective 2026-02-24 through 2026-02-25 |
| Tue,Thu
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-03-03 through 2026-03-05 |
| Tue,Wed,Sat
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 (73J) 2:50 Effective 2026-03-04 through 2026-03-14 |
| Mon,Thu,Fri
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-03-06 through 2026-03-16 |
| Sun
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 (73J) 2:50 Operates only on 2026-03-15 |
| Tue
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Operates only on 2026-03-17 |
| Daily
16:03
Ontario, Los Angeles (ONT) 2
18:54
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737-800 (73H) 2:51 Effective 2026-01-07 through 2026-02-11 |
| Mon-Wed,Fri,Sun
16:36
Ontario, Los Angeles (ONT) 2
19:27
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 (73J) 2:51 Valid until 2026-01-06 |
| Thu
16:36
Ontario, Los Angeles (ONT) 2
19:27
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 MAX 9 (7M9) 2:51 Operates only on 2026-01-01 |
| Sat
16:36
Ontario, Los Angeles (ONT) 2
19:27
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737-800 (73H) 2:51 Operates only on 2026-01-03 |
| Daily
11:51
Ontario, Los Angeles (ONT) 2
14:35
Seattle-Tacoma (SEA) Alaska Airlines AS 706 Non-stop Boeing 737 (73J) 2:44 Effective 2026-05-13 through 2026-06-09 |
| Sun
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Alaska Airlines AS 724 Non-stop Boeing 737 (73J) 2:50 Operates only on 2026-03-08 |
| Daily
15:33
Ontario, Los Angeles (ONT) 2
18:22
Seattle-Tacoma (SEA) Alaska Airlines AS 729 Non-stop Boeing 737 (73J) 2:49 Effective 2026-04-22 through 2026-05-12 |
| Daily
12:00
Ontario, Los Angeles (ONT) 2
14:41
Seattle-Tacoma (SEA) Alaska Airlines AS 1363 Non-stop Boeing 737 (73J) 2:41 Effective from 2026-06-10 |
| Daily
16:00
Ontario, Los Angeles (ONT) 2
18:41
Seattle-Tacoma (SEA) Alaska Airlines AS 1367 Non-stop Boeing 737 (73J) 2:41 Effective from 2026-06-10 |
| Daily
19:20
Ontario, Los Angeles (ONT) 2
22:00
Seattle-Tacoma (SEA) Alaska Airlines AS 1399 Non-stop Boeing 737 (73J) 2:40 Effective 2026-05-13 through 2026-06-09 |
| Daily
14:21
Ontario, Los Angeles (ONT) 2
17:02
Seattle-Tacoma (SEA) Alaska Airlines AS 1475 Non-stop Boeing 737 (73J) 2:41 Effective 2026-06-10 through 2026-08-18 |
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- 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 2:40 and 2:57.
