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 46 minutes.

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Schedules

Non-stop with Alaska Airlines

  • Total flight time: 2 hours and 46 minutes
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 18 flights per week
  • Boeing 737-900 (winglets) Passenger/BBJ3
    Boeing 737MAX 9 Passenger
    Boeing 737-700 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737-900 Passenger
  • Business and first class available
ONT
Direct
SEA
 
Flight
Mon
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 9
AS1091
06:00
06:00
06:00
06:00
06:00
06:00
06:00
AS1255
11:57
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11:57
11:57
11:57
11:57
AS1119
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16:20
16:20
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AS1399
19:14
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19:14
19:14
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19:14
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

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
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 9
DL4042
06:00
06:00
06:00
06:00
06:00
06:00
05:40
DL4070
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11:42
DL4031
16:05
16:05
16:05
16:05
16:05
16:05
17:30
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 51 minutes
  • Low-cost airline
  • 4 flights per week
  • Airbus A320neo
ONT
Direct
SEA
 
Flight
Mon
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 9
F93164
11:25
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10:21
10:21
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10:21
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

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
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 9
AA1199
AA6234
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10:05
10:05
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09:32
AA1792
AA4910
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12:49
12:49
12:49
12:49
AA1792
AA6196
12:50
12:50
12:50
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AA1666
AA6281
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19:35
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

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
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 9
WN1365
WN3874
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05:25
WN1930
WN1856
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05:40
05:40
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WN732
WN1011
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05:40
WN2157
WN2299
06:00
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WN393
WN3929
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06:00
06:00
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WN110
WN3435
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08:15
WN2191
WN1060
08:20
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WN3781
WN1060
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09:00
09:00
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WN1559
WN249
09:55
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WN1559
WN4060
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10:20
10:20
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WN1748
WN449
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10:25
WN2317
WN1479
11:10
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WN965
WN2396
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11:15
11:15
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WN4198
WN4060
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12:25
12:25
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WN254
WN2828
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12:55
WN2565
WN2493
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12:55
12:55
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WN1535
WN1030
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13:20
13:20
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WN2679
WN449
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13:30
13:30
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WN2446
WN3125
15:30
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WN3068
WN4334
16:05
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WN4409
WN2431
17:55
16:05
16:05
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WN3313
WN111
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16:25
16:25
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WN1246
WN3001
16:35
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WN3630
WN873
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17:05
WN2715
WN4069
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17:05
17:05
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WN3662
WN111
17:10
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WN1564
WN3716
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17:35
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WN3818
WN5463
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17:45
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WN4002
WN947
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18:05
18:05
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WN3630
WN3716
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18:25
18:25
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WN2175
WN176
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18:35
WN101
WN344
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18:35
18:35
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WN3965
WN498
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19:10
19:10
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WN3269
WN2072
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19:30
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

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 737-900 (winglets) Passenger/BBJ3
    Boeing 737MAX 9 Passenger
    Boeing 737-700 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737-900 Passenger
ONT
 
Via PDX
 
SEA
 
Flight
Mon
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 9
AS1058
AS970
07:00
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07:00
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07:00
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07:00
AS1058
AS2229
07:00
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07:00
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07:00
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07:00
AS3312
AS3289
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11:42
AS3312
AS3282
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11:42
AS3312
AS3358
11:45
11:45
11:45
11:45
11:45
11:45
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AS3312
AS3295
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11:45
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AS3312
AS2102
11:45
11:45
11:45
11:45
11:45
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AS3312
AS2082
11:45
11:45
11:45
11:45
11:45
11:45
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AS2202
AS2115
17:44
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17:44
17:44
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17:44
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

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
Mar 3
Tue
Mar 4
Wed
Mar 5
Thu
Mar 6
Fri
Mar 7
Sat
Mar 8
Sun
Mar 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
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13:20
DL3933
DL2998
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17:15
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - SEA

The timetable & schedule information was updated at 2025-02-17

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