All airlines flying from Ontario, Los Angeles (ONT) to Seattle-Tacoma (SEA).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Daily
13:30
Ontario, Los Angeles (ONT) 2
16:19
Seattle-Tacoma (SEA) Alaska Airlines AS 384 Non-stop Boeing 737 (73J) 2:49 Effective 2025-11-21 through 2025-12-01 |
| Daily
18:55
Ontario, Los Angeles (ONT) 2
21:44
Seattle-Tacoma (SEA) Alaska Airlines AS 594 Non-stop Boeing 737 (73J) 2:49 Effective from 2025-10-26 |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:50
Seattle-Tacoma (SEA) Alaska Airlines AS 607 Non-stop Boeing 737 (73J) 2:50 Effective from 2025-10-26 |
| Daily
11:30
Ontario, Los Angeles (ONT) 2
14:20
Seattle-Tacoma (SEA) Alaska Airlines AS 654 Non-stop Boeing 737 (73J) 2:50 Effective from 2025-10-26 |
| Daily
16:05
Ontario, Los Angeles (ONT) 2
18:54
Seattle-Tacoma (SEA) Alaska Airlines AS 665 Non-stop Boeing 737 (73J) 2:49 Effective 2025-10-26 through 2026-02-11 |
| Sat
18:51
Ontario, Los Angeles (ONT) 2
21:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-06-14 through 2025-07-05 |
| Sat
18:51
Ontario, Los Angeles (ONT) 2
21:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737-800 (73H) 2:40 Operates only on 2025-07-12 |
| Sat
18:51
Ontario, Los Angeles (ONT) 2
21:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-07-19 through 2025-08-16 |
| Daily
18:55
Ontario, Los Angeles (ONT) 2
21:44
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:49 Effective 2025-10-04 through 2025-10-25 |
| Mon-Fri
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:39 Effective 2025-06-12 through 2025-06-20 |
| Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 MAX 9 (7M9) 2:39 Operates only on 2025-06-15 |
| Mon-Fri,Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:39 Effective 2025-06-22 through 2025-06-27 |
| Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 MAX 9 (7M9) 2:39 Operates only on 2025-06-29 |
| Mon-Thu,Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:39 Effective 2025-06-30 through 2025-07-10 |
| Mon-Fri,Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:39 Effective 2025-07-11 through 2025-07-18 |
| Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 MAX 9 (7M9) 2:39 Operates only on 2025-07-20 |
| Mon-Fri,Sun
18:58
Ontario, Los Angeles (ONT) 2
21:37
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:39 Effective 2025-07-21 through 2025-08-19 |
| Tue-Sun
19:17
Ontario, Los Angeles (ONT) 2
22:00
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 (73J) 2:43 Effective 2025-08-20 through 2025-10-03 |
| Mon
19:17
Ontario, Los Angeles (ONT) 2
22:00
Seattle-Tacoma (SEA) Alaska Airlines AS 1087 Non-stop Boeing 737 MAX 8 (7M8) 2:43 Effective 2025-08-25 through 2025-09-29 |
| Mon
06:00
Ontario, Los Angeles (ONT) 2
08:46
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-700 (73G) 2:46 Valid until 2025-05-12 |
| Tue
06:00
Ontario, Los Angeles (ONT) 2
08:46
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 8 (7M8) 2:46 Valid until 2025-05-13 |
| Wed,Sat,Sun
06:00
Ontario, Los Angeles (ONT) 2
08:46
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:46 Valid until 2025-05-10 |
| Thu,Fri
06:00
Ontario, Los Angeles (ONT) 2
08:46
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:46 Valid until 2025-05-09 |
| Sun
06:00
Ontario, Los Angeles (ONT) 2
08:46
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:46 Operates only on 2025-05-11 |
| Wed
06:00
Ontario, Los Angeles (ONT) 2
08:46
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:46 Operates only on 2025-05-14 |
| Mon,Thu
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:42 Effective 2025-05-15 through 2025-05-19 |
| Tue-Fri
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Effective 2025-05-16 through 2025-05-22 |
| Sat,Sun
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:42 Effective 2025-05-17 through 2025-05-25 |
| Thu,Fri
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:42 Effective 2025-05-23 through 2025-05-29 |
| Mon-Wed,Sat
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Effective 2025-05-26 through 2025-06-04 |
| Fri,Sun
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:42 Effective 2025-05-30 through 2025-06-01 |
| Mon,Thu
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:42 Effective 2025-06-05 through 2025-06-09 |
| Tue-Sat
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Effective 2025-06-06 through 2025-06-14 |
| Sun
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:42 Operates only on 2025-06-08 |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Effective 2025-06-15 through 2025-06-29 |
| Mon
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:42 Operates only on 2025-06-30 |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Effective 2025-07-01 through 2025-08-08 |
| Sat
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:42 Operates only on 2025-08-09 |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Effective 2025-08-10 through 2025-08-18 |
| Tue
06:00
Ontario, Los Angeles (ONT) 2
08:42
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737-800 (73H) 2:42 Operates only on 2025-08-19 |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:48
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:48 Effective 2025-08-20 through 2025-10-03 |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:50
Seattle-Tacoma (SEA) Alaska Airlines AS 1091 Non-stop Boeing 737 (73J) 2:50 Effective 2025-10-04 through 2025-10-25 |
| Daily
11:30
Ontario, Los Angeles (ONT) 2
14:20
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737 (73J) 2:50 Effective 2025-10-04 through 2025-10-25 |
| Daily
11:39
Ontario, Los Angeles (ONT) 2
14:22
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737 (73J) 2:43 Effective 2025-08-20 through 2025-10-03 |
| Mon,Wed-Fri
11:46
Ontario, Los Angeles (ONT) 2
14:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737 (73J) 2:45 Valid until 2025-05-05 |
| Tue,Sat,Sun
11:46
Ontario, Los Angeles (ONT) 2
14:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737-800 (73H) 2:45 Valid until 2025-05-04 |
| Tue,Thu-Sat
11:46
Ontario, Los Angeles (ONT) 2
14:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737 (73J) 2:45 Effective 2025-05-06 through 2025-05-10 |
| Mon-Wed,Sun
11:46
Ontario, Los Angeles (ONT) 2
14:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737-800 (73H) 2:45 Effective 2025-05-07 through 2025-05-13 |
| Wed
11:46
Ontario, Los Angeles (ONT) 2
14:31
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737 MAX 9 (7M9) 2:45 Operates only on 2025-05-14 |
| Mon-Thu,Sun
12:00
Ontario, Los Angeles (ONT) 2
14:38
Seattle-Tacoma (SEA) Alaska Airlines AS 1111 Non-stop Boeing 737 MAX 9 (7M9) 2:38 Effective 2025-06-12 through 2025-06-19 |
- 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 2:36 and 3:04.
