Airlines with flights from Ontario to Seattle

There are five airlines with scheduled flights between ONT and SEA. Alaska Airlines, Delta and Frontier Airlines has non-stop flights from Ontario International Airport to Seattle Airport and the flight time is 2 hours and 50 minutes.

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Schedules

Non-stop with Alaska Airlines

  • Total flight time: 2 hours and 50 minutes
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 22 flights per week
  • Boeing 737MAX 9 Passenger
    Boeing 737-900 (winglets) Passenger/BBJ3
    Boeing 737-700 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
  • Business and first class available
ONT
Direct
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
AS1091
06:00
06:00
06:00
06:00
06:00
06:00
06:00
AS1255
11:33
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11:33
11:33
11:33
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11:33
AS1119
16:06
16:06
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16:06
16:06
16:06
16:11
AS1399
19:01
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----
19:01
19:01
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19:01
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The timetable & schedule information was updated at 2025-01-15

Non-stop with Delta Air Lines

  • Total flight time: 2 hours and 49 minutes
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 14 flights per week
  • Embraer 175 (Enhanced Winglets)
  • First class available
ONT
Direct
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
DL4042
06:00
06:00
06:00
06:00
06:00
06:00
06:00
DL4031
16:05
16:05
16:05
16:05
16:05
16:05
16:05
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-01-15

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 51 minutes
  • Low-cost airline
  • 2 flights per week
  • A320neo
    A321neo
ONT
Direct
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
F93164
----
----
----
11:27
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11:27
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-01-15

Via Phoenix with American Airlines

  • Total flight time: 6h 03m - 7h 52m.
  • One World Alliance
  • 18 flights per week
ONT
 
Via PHX
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
AA643
AA6337
06:10
06:10
06:10
06:10
06:10
06:10
06:10
AA4890
AA3903
10:00
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10:00
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AA4890
AA6234
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10:00
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10:00
AA1792
AA6430
12:48
12:48
12:48
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12:48
12:48
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AA3365
AA6430
----
----
----
12:51
----
----
12:51
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-01-15

Via Sacramento with Southwest Airlines

  • Total flight time: 3h 50m - 6h 15m.
  • Low-cost airline
  • 17 flights per week
ONT
 
Via SMF
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
WN2157
WN2299
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----
----
06:00
06:00
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WN393
WN3929
06:00
06:00
06:00
----
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06:00
WN4852
WN1505
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----
----
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08:10
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WN2191
WN1060
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08:20
08:20
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WN3781
WN1060
09:00
09:00
09:00
----
----
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09:00
WN244
WN3001
----
----
----
----
----
09:00
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WN1559
WN249
----
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09:55
09:55
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WN1559
WN4060
10:20
10:20
10:20
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----
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10:20
WN2317
WN1479
----
----
----
11:10
11:10
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WN4198
WN4060
12:25
12:25
12:25
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----
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12:25
WN2446
WN3125
----
----
----
15:30
15:30
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WN3068
WN4334
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16:05
16:05
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WN4409
WN2431
16:05
16:05
16:05
17:55
17:55
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WN3313
WN111
16:25
16:25
16:25
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----
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16:25
WN1246
WN3001
----
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16:35
16:35
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WN1676
WN1479
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----
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----
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16:40
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WN3662
WN111
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----
----
17:10
17:10
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WN101
WN344
18:35
18:35
18:35
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----
----
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-01-15

Via Portland with Alaska Airlines

  • Total flight time: 4h 04m - 6h 25m.
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 14 flights per week
  • Boeing 737MAX 9 Passenger
    Boeing 737-900 (winglets) Passenger/BBJ3
    Boeing 737-700 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
ONT
 
Via PDX
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
AS1058
AS970
07:00
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----
07:00
07:00
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07:00
AS1058
AS3492
07:00
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07:00
07:00
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AS3312
AS3358
11:14
11:14
11:14
11:14
11:14
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11:14
AS3312
AS2102
11:14
11:14
11:14
11:14
11:14
11:14
11:14
AS3312
AS2355
----
----
----
----
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11:14
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AS3498
AS2113
----
17:44
17:44
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----
17:44
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-01-15

Via Salt Lake City with Delta Air Lines

  • Total flight time: 4h 59m - 7h 00m.
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 13 flights per week
  • Embraer 175 (Enhanced Winglets)
ONT
 
Via SLC
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
DL1340
DL2995
06:00
06:00
06:00
06:00
06:00
06:00
06:00
DL1345
DL871
13:21
13:21
13:21
13:21
13:21
----
----
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-01-15

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