All airlines flying from Ontario, Los Angeles (ONT) to Seattle-Tacoma (SEA).
| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Daily
07:30
Ontario, Los Angeles (ONT) 2
10:34
Seattle-Tacoma (SEA) Korean Air KE 3098 Non-stop Embraer EMB 175 (E7W) 3:04 Effective 2026-02-12 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| 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) |
| Tue,Fri-Sun
07:00
Ontario, Los Angeles (ONT) 2
10:01
Seattle-Tacoma (SEA) SAS SK 3675 Non-stop Embraer EMB 175 (E7W) 3:01 Effective 2026-05-22 through 2026-10-04 Codeshare flight, operated by Delta Air Lines.(DL 3816) |
| Tue,Fri-Sun
07:00
Ontario, Los Angeles (ONT) 2
10:05
Seattle-Tacoma (SEA) SAS SK 3675 Non-stop Embraer EMB 175 (E7W) 3:05 Effective 2026-10-06 through 2026-10-24 Codeshare flight, operated by Delta Air Lines.(DL 3816) |
| Tue,Fri-Sun
07:00
Ontario, Los Angeles (ONT) 2
10:01
Seattle-Tacoma (SEA) SAS SK 3675 Non-stop Embraer EMB 175 (E7W) 3:01 Effective from 2026-10-25 Codeshare flight, operated by Delta Air Lines.(DL 3816) |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:55
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 2:55 Effective 2026-03-08 through 2026-03-27 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:55
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 2:55 Effective 2026-03-29 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
06:38
Ontario, Los Angeles (ONT) 2
09:45
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 3:07 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
07:00
Ontario, Los Angeles (ONT) 2
10:01
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Airbus A220-300 (223) 3:01 Effective 2026-04-13 through 2026-05-06 Codeshare flight, operated by Delta Air Lines.(DL 1071) |
| Daily
07:00
Ontario, Los Angeles (ONT) 2
10:01
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 3:01 Effective 2026-05-07 through 2026-10-05 Codeshare flight, operated by Delta Air Lines.(DL 3816) |
| Daily
07:00
Ontario, Los Angeles (ONT) 2
10:05
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 3:05 Effective from 2026-10-06 Codeshare flight, operated by Delta Air Lines.(DL 3816) |
| Daily
07:30
Ontario, Los Angeles (ONT) 2
10:36
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 3:06 Effective 2026-01-05 through 2026-02-11 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
07:30
Ontario, Los Angeles (ONT) 2
10:34
Seattle-Tacoma (SEA) Virgin Atlantic VS 3853 Non-stop Embraer EMB 175 (E7W) 3:04 Effective 2026-02-12 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Tue,Fri-Sun
11:55
Ontario, Los Angeles (ONT) 2
14:56
Seattle-Tacoma (SEA) SAS SK 3875 Non-stop Embraer EMB 175 (E7W) 3:01 Effective 2026-05-22 through 2026-10-04 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Tue,Fri-Sun
11:55
Ontario, Los Angeles (ONT) 2
14:58
Seattle-Tacoma (SEA) SAS SK 3875 Non-stop Embraer EMB 175 (E7W) 3:03 Effective 2026-10-06 through 2026-10-24 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Tue,Fri-Sun
11:55
Ontario, Los Angeles (ONT) 2
14:56
Seattle-Tacoma (SEA) SAS SK 3875 Non-stop Embraer EMB 175 (E7W) 3:01 Effective from 2026-10-25 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) Virgin Atlantic VS 4052 Non-stop Embraer EMB 175 (E7W) 3:00 Effective from 2026-05-07 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sun
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Hawaiian Airlines HA 4812 Non-stop Boeing 737 (737) 2:50 Operates only on 2026-03-08 Codeshare flight, operated by Alaska Airlines.(AS 724) |
| Mon-Wed,Fri,Sat
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Hawaiian Airlines HA 4819 Non-stop Boeing 737 (737) 2:50 Effective 2026-02-13 through 2026-03-02 Codeshare flight, operated by Alaska Airlines.(AS 665) |
| Tue
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Hawaiian Airlines HA 4819 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Operates only on 2026-03-03 Codeshare flight, operated by Alaska Airlines.(AS 665) |
| Mon-Wed,Fri,Sat
16:02
Ontario, Los Angeles (ONT) 2
18:52
Seattle-Tacoma (SEA) Hawaiian Airlines HA 4819 Non-stop Boeing 737 (737) 2:50 Effective 2026-03-04 through 2026-03-10 Codeshare flight, operated by Alaska Airlines.(AS 665) |
| Tue
07:30
Ontario, Los Angeles (ONT) 2
10:36
Seattle-Tacoma (SEA) WestJet WS 5418 Non-stop Embraer EMB 175 (E7W) 3:06 Effective 2026-01-20 through 2026-02-10 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Mon,Tue,Fri-Sun
11:42
Ontario, Los Angeles (ONT) 2
14:45
Seattle-Tacoma (SEA) Virgin Atlantic VS 5467 Non-stop Embraer EMB 175 (E7W) 3:03 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
11:55
Ontario, Los Angeles (ONT) 2
14:56
Seattle-Tacoma (SEA) Virgin Atlantic VS 5467 Non-stop Embraer EMB 175 (E7W) 3:01 Effective 2026-04-13 through 2026-10-05 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
11:55
Ontario, Los Angeles (ONT) 2
14:58
Seattle-Tacoma (SEA) Virgin Atlantic VS 5467 Non-stop Embraer EMB 175 (E7W) 3:03 Effective from 2026-10-06 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
11:59
Ontario, Los Angeles (ONT) 2
14:53
Seattle-Tacoma (SEA) Virgin Atlantic VS 5467 Non-stop Embraer EMB 175 (E7W) 2:54 Effective 2026-03-08 through 2026-03-14 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
11:59
Ontario, Los Angeles (ONT) 2
14:55
Seattle-Tacoma (SEA) Virgin Atlantic VS 5467 Non-stop Embraer EMB 175 (E7W) 2:56 Effective 2026-03-15 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Thu
14:50
Ontario, Los Angeles (ONT) 2
17:50
Seattle-Tacoma (SEA) Virgin Atlantic VS 5467 Non-stop Embraer EMB 175 (E7W) 3:00 Valid until 2026-01-01 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5486 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-08-15 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5488 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-08-22 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5547 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-08-08 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5547 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-08-29 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5556 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-08-01 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5569 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-07-25 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5571 Non-stop Embraer EMB 175 (E7W) 3:00 Operates only on 2026-07-04 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Wed
07:30
Ontario, Los Angeles (ONT) 2
10:36
Seattle-Tacoma (SEA) WestJet WS 5576 Non-stop Embraer EMB 175 (E7W) 3:06 Effective 2026-01-21 through 2026-02-11 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Sat
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 5576 Non-stop Embraer EMB 175 (E7W) 3:00 Effective 2026-07-11 through 2026-07-18 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Daily
07:00
Ontario, Los Angeles (ONT) 2
10:05
Seattle-Tacoma (SEA) KLM KL 5584 Non-stop Embraer EMB 175 (E7W) 3:05 Effective from 2026-10-25 Codeshare flight, operated by Delta Air Lines.(DL 3816) |
| Daily
11:55
Ontario, Los Angeles (ONT) 2
14:58
Seattle-Tacoma (SEA) KLM KL 5586 Non-stop Embraer EMB 175 (E7W) 3:03 Effective from 2026-10-25 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
06:00
Ontario, Los Angeles (ONT) 2
08:55
Seattle-Tacoma (SEA) KLM KL 5663 Non-stop Embraer EMB 175 (E7W) 2:55 Effective 2026-03-08 through 2026-03-28 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
06:38
Ontario, Los Angeles (ONT) 2
09:45
Seattle-Tacoma (SEA) KLM KL 5663 Non-stop Embraer EMB 175 (E7W) 3:07 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
07:30
Ontario, Los Angeles (ONT) 2
10:36
Seattle-Tacoma (SEA) KLM KL 5663 Non-stop Embraer EMB 175 (E7W) 3:06 Effective 2026-01-05 through 2026-02-11 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
07:30
Ontario, Los Angeles (ONT) 2
10:34
Seattle-Tacoma (SEA) KLM KL 5663 Non-stop Embraer EMB 175 (E7W) 3:04 Effective 2026-02-12 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 4042) |
| Daily
11:59
Ontario, Los Angeles (ONT) 2
14:53
Seattle-Tacoma (SEA) KLM KL 5664 Non-stop Embraer EMB 175 (E7W) 2:54 Effective 2026-03-08 through 2026-03-14 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
11:59
Ontario, Los Angeles (ONT) 2
14:55
Seattle-Tacoma (SEA) KLM KL 5664 Non-stop Embraer EMB 175 (E7W) 2:56 Effective 2026-03-15 through 2026-03-28 Codeshare flight, operated by Delta Air Lines.(DL 4070) |
| Daily
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) KLM KL 5993 Non-stop Embraer EMB 175 (E7W) 3:00 Effective 2026-05-07 through 2026-10-23 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Tue,Thu
14:00
Ontario, Los Angeles (ONT) 2
17:00
Seattle-Tacoma (SEA) WestJet WS 6313 Non-stop Embraer EMB 175 (E7W) 3:00 Effective 2026-08-11 through 2026-08-27 Codeshare flight, operated by Delta Air Lines.(DL 3819) |
| Wed
18:55
Ontario, Los Angeles (ONT) 2
21:44
Seattle-Tacoma (SEA) Hawaiian Airlines HA 6358 Non-stop Boeing 737 (737) 2:49 Operates only on 2026-03-18 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 2:40 and 3:07.
