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

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 19:55 Seattle-Tacoma (SEA) 22:42 Ontario, Los Angeles (ONT) 2
KLM KL 5150 Non-stop Embraer EMB 175 (E7W) 2:47 Valid until 2024-09-08
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:55 Seattle-Tacoma (SEA) 22:39 Ontario, Los Angeles (ONT) 2
KLM KL 5150 Non-stop Embraer EMB 175 (E7W) 2:44 Effective 2024-09-09 through 2024-10-26
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:55 Seattle-Tacoma (SEA) 22:40 Ontario, Los Angeles (ONT) 2
KLM KL 6206 Non-stop Embraer EMB 175 (E7W) 2:45 Effective 2025-03-30 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:55 Seattle-Tacoma (SEA) 22:41 Ontario, Los Angeles (ONT) 2
KLM KL 6206 Non-stop Embraer EMB 175 (E7W) 2:46 Effective from 2025-06-08
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 14:35 Seattle-Tacoma (SEA) 17:15 Ontario, Los Angeles (ONT) 2
KLM KL 6208 Non-stop Embraer EMB 175 (E7W) 2:40 Effective 2025-03-30 through 2025-04-13
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Daily 14:35 Seattle-Tacoma (SEA) 17:14 Ontario, Los Angeles (ONT) 2
KLM KL 6208 Non-stop Embraer EMB 175 (E7W) 2:39 Effective 2025-04-14 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Daily 14:35 Seattle-Tacoma (SEA) 17:22 Ontario, Los Angeles (ONT) 2
KLM KL 6208 Non-stop Embraer EMB 175 (E7W) 2:47 Effective from 2025-06-08
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Sat 11:30 Seattle-Tacoma (SEA) 14:22 Ontario, Los Angeles (ONT) 2
KLM KL 6240 Non-stop Embraer EMB 175 (E7W) 2:52 Effective 2024-09-14 through 2024-09-28
Codeshare flight, operated by Delta Air Lines.(DL 3739)
Mon-Fri,Sun 14:00 Seattle-Tacoma (SEA) 16:51 Ontario, Los Angeles (ONT) 2
KLM KL 6240 Non-stop Embraer EMB 175 (E7W) 2:51 Effective 2024-09-09 through 2024-10-06
Codeshare flight, operated by Delta Air Lines.(DL 3739)
Mon-Fri,Sun 14:00 Seattle-Tacoma (SEA) 16:45 Ontario, Los Angeles (ONT) 2
KLM KL 6240 Non-stop Embraer EMB 175 (E7W) 2:45 Effective 2024-10-07 through 2024-10-25
Codeshare flight, operated by Delta Air Lines.(DL 3739)
Sat,Sun 14:05 Seattle-Tacoma (SEA) 16:58 Ontario, Los Angeles (ONT) 2
KLM KL 6240 Non-stop Embraer EMB 175 (E7W) 2:53 Valid until 2024-09-07
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Mon-Fri,Sun 15:29 Seattle-Tacoma (SEA) 18:16 Ontario, Los Angeles (ONT) 2
KLM KL 6240 Non-stop Embraer EMB 175 (E7W) 2:47 Effective 2024-09-02 through 2024-09-08
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Daily 19:55 Seattle-Tacoma (SEA) 22:39 Ontario, Los Angeles (ONT) 2
KLM KL 6282 Non-stop Embraer EMB 175 (E7W) 2:44 Effective 2024-10-27 through 2024-11-10
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:55 Seattle-Tacoma (SEA) 22:29 Ontario, Los Angeles (ONT) 2
KLM KL 6282 Non-stop Embraer EMB 175 (E7W) 2:34 Effective 2024-11-11 through 2024-11-27
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:55 Seattle-Tacoma (SEA) 22:29 Ontario, Los Angeles (ONT) 2
KLM KL 6282 Non-stop Embraer EMB 175 (E7W) 2:34 Effective 2024-11-30 through 2024-12-18
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:55 Seattle-Tacoma (SEA) 22:40 Ontario, Los Angeles (ONT) 2
KLM KL 6282 Non-stop Embraer EMB 175 (E7W) 2:45 Effective 2025-01-07 through 2025-03-29
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 19:56 Seattle-Tacoma (SEA) 22:41 Ontario, Los Angeles (ONT) 2
KLM KL 6282 Non-stop Embraer EMB 175 (E7W) 2:45 Effective 2024-12-19 through 2025-01-05
Codeshare flight, operated by Delta Air Lines.(DL 4027)
Daily 13:59 Seattle-Tacoma (SEA) 16:41 Ontario, Los Angeles (ONT) 2
KLM KL 6284 Non-stop Embraer EMB 175 (E7W) 2:42 Effective 2024-12-19 through 2025-01-05
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Mon,Wed-Fri,Sun 14:20 Seattle-Tacoma (SEA) 17:05 Ontario, Los Angeles (ONT) 2
KLM KL 6284 Non-stop Embraer EMB 175 (E7W) 2:45 Effective 2024-11-03 through 2024-11-10
Codeshare flight, operated by Delta Air Lines.(DL 3765)
Mon-Wed,Fri,Sun 14:35 Seattle-Tacoma (SEA) 17:10 Ontario, Los Angeles (ONT) 2
KLM KL 6284 Non-stop Embraer EMB 175 (E7W) 2:35 Effective 2024-10-27 through 2024-11-01
Codeshare flight, operated by Delta Air Lines.(DL 3739)
Mon-Fri,Sun 14:35 Seattle-Tacoma (SEA) 17:08 Ontario, Los Angeles (ONT) 2
KLM KL 6284 Non-stop Embraer EMB 175 (E7W) 2:33 Effective 2024-11-11 through 2024-11-22
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Daily 14:35 Seattle-Tacoma (SEA) 17:08 Ontario, Los Angeles (ONT) 2
KLM KL 6284 Non-stop Embraer EMB 175 (E7W) 2:33 Effective 2024-11-23 through 2024-12-18
Codeshare flight, operated by Delta Air Lines.(DL 4031)
Daily 14:35 Seattle-Tacoma (SEA) 17:15 Ontario, Los Angeles (ONT) 2
KLM KL 6284 Non-stop Embraer EMB 175 (E7W) 2:40 Effective 2025-03-09 through 2025-03-29
Codeshare flight, operated by Delta Air Lines.(DL 4031)




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KLM flights from Seattle-Tacoma (SEA) to Ontario, Los Angeles (ONT).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL5150
19:55
Seattle-Tacoma (SEA)

22:42
Ontario, Los Angeles (ONT) 2
Valid until 2024-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:47, non-stop
Embraer EMB 175 (E7W)
KLM KL5150
19:55
Seattle-Tacoma (SEA)

22:39
Ontario, Los Angeles (ONT) 2
Effective 2024-09-09 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:44, non-stop
Embraer EMB 175 (E7W)
KLM KL6206
19:55
Seattle-Tacoma (SEA)

22:40
Ontario, Los Angeles (ONT) 2
Effective 2025-03-30 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:45, non-stop
Embraer EMB 175 (E7W)
KLM KL6206
19:55
Seattle-Tacoma (SEA)

22:41
Ontario, Los Angeles (ONT) 2
Effective from 2025-06-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:46, non-stop
Embraer EMB 175 (E7W)
KLM KL6208
14:35
Seattle-Tacoma (SEA)

17:15
Ontario, Los Angeles (ONT) 2
Effective 2025-03-30 through 2025-04-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:40, non-stop
Embraer EMB 175 (E7W)
KLM KL6208
14:35
Seattle-Tacoma (SEA)

17:14
Ontario, Los Angeles (ONT) 2
Effective 2025-04-14 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:39, non-stop
Embraer EMB 175 (E7W)
KLM KL6208
14:35
Seattle-Tacoma (SEA)

17:22
Ontario, Los Angeles (ONT) 2
Effective from 2025-06-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:47, non-stop
Embraer EMB 175 (E7W)
KLM KL6240
11:30
Seattle-Tacoma (SEA)

14:22
Ontario, Los Angeles (ONT) 2
Effective 2024-09-14 through 2024-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3739)
Duration: 2:52, non-stop
Embraer EMB 175 (E7W)
KLM KL6240
14:00
Seattle-Tacoma (SEA)

16:51
Ontario, Los Angeles (ONT) 2
Effective 2024-09-09 through 2024-10-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3739)
Duration: 2:51, non-stop
Embraer EMB 175 (E7W)
KLM KL6240
14:00
Seattle-Tacoma (SEA)

16:45
Ontario, Los Angeles (ONT) 2
Effective 2024-10-07 through 2024-10-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3739)
Duration: 2:45, non-stop
Embraer EMB 175 (E7W)
KLM KL6240
14:05
Seattle-Tacoma (SEA)

16:58
Ontario, Los Angeles (ONT) 2
Valid until 2024-09-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:53, non-stop
Embraer EMB 175 (E7W)
KLM KL6240
15:29
Seattle-Tacoma (SEA)

18:16
Ontario, Los Angeles (ONT) 2
Effective 2024-09-02 through 2024-09-08
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:47, non-stop
Embraer EMB 175 (E7W)
KLM KL6282
19:55
Seattle-Tacoma (SEA)

22:39
Ontario, Los Angeles (ONT) 2
Effective 2024-10-27 through 2024-11-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:44, non-stop
Embraer EMB 175 (E7W)
KLM KL6282
19:55
Seattle-Tacoma (SEA)

22:29
Ontario, Los Angeles (ONT) 2
Effective 2024-11-11 through 2024-11-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:34, non-stop
Embraer EMB 175 (E7W)
KLM KL6282
19:55
Seattle-Tacoma (SEA)

22:29
Ontario, Los Angeles (ONT) 2
Effective 2024-11-30 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:34, non-stop
Embraer EMB 175 (E7W)
KLM KL6282
19:55
Seattle-Tacoma (SEA)

22:40
Ontario, Los Angeles (ONT) 2
Effective 2025-01-07 through 2025-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:45, non-stop
Embraer EMB 175 (E7W)
KLM KL6282
19:56
Seattle-Tacoma (SEA)

22:41
Ontario, Los Angeles (ONT) 2
Effective 2024-12-19 through 2025-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4027)
Duration: 2:45, non-stop
Embraer EMB 175 (E7W)
KLM KL6284
13:59
Seattle-Tacoma (SEA)

16:41
Ontario, Los Angeles (ONT) 2
Effective 2024-12-19 through 2025-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:42, non-stop
Embraer EMB 175 (E7W)
KLM KL6284
14:20
Seattle-Tacoma (SEA)

17:05
Ontario, Los Angeles (ONT) 2
Effective 2024-11-03 through 2024-11-10
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3765)
Duration: 2:45, non-stop
Embraer EMB 175 (E7W)
KLM KL6284
14:35
Seattle-Tacoma (SEA)

17:10
Ontario, Los Angeles (ONT) 2
Effective 2024-10-27 through 2024-11-01
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3739)
Duration: 2:35, non-stop
Embraer EMB 175 (E7W)
KLM KL6284
14:35
Seattle-Tacoma (SEA)

17:08
Ontario, Los Angeles (ONT) 2
Effective 2024-11-11 through 2024-11-22
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:33, non-stop
Embraer EMB 175 (E7W)
KLM KL6284
14:35
Seattle-Tacoma (SEA)

17:08
Ontario, Los Angeles (ONT) 2
Effective 2024-11-23 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:33, non-stop
Embraer EMB 175 (E7W)
KLM KL6284
14:35
Seattle-Tacoma (SEA)

17:15
Ontario, Los Angeles (ONT) 2
Effective 2025-03-09 through 2025-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4031)
Duration: 2:40, non-stop
Embraer EMB 175 (E7W)
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Ontario, Los Angeles airport (ONT).
  • 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 2:33 and 2:53.
All SEA-ONT flights
All KLM flights
Return (ONT-SEA) flights
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