Airlines with flights from Seattle to Ontario

There are five airlines with scheduled flights between SEA and ONT. Alaska Airlines, Delta and Frontier Airlines has non-stop flights from Seattle Airport to Ontario International Airport and the flight time is 2 hours and 34 minutes.

Choose airline

Schedules

Non-stop with Alaska Airlines

  • Total flight time: 2 hours and 34 minutes
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 22 flights per week
  • Boeing 737-700 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737-900 (winglets) Passenger/BBJ3
    Boeing 737MAX 9 Passenger
  • Business and first class available
SEA
Direct
ONT

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

Non-stop with Delta Air Lines

  • Total flight time: 2 hours and 47 minutes
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 14 flights per week
  • Embraer 175 (Enhanced Winglets)
  • First class available
SEA
Direct
ONT

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

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 37 minutes
  • Low-cost airline
  • 2 flights per week
  • A320neo
SEA
Direct
ONT

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

Via Salt Lake City with Delta Air Lines

  • Total flight time: 4h 37m - 6h 56m.
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 26 flights per week
  • Embraer 175 (Enhanced Winglets)
SEA
 
Via SLC
 
ONT

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

Via Phoenix with American Airlines

  • Total flight time: 5h 21m - 7h 11m.
  • One World Alliance
  • 15 flights per week
SEA
 
Via PHX
 
ONT
 
Flight
Mon
Feb 3
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AA4963
AA1792
06:10
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AA4963
AA3365
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AA3970
AA1666
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11:40
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AA5011
AA1666
11:40
11:40
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11:40
11:40
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11:40
AA6337
AA1238
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15:00
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15:00
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - ONT

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

Via Portland with Alaska Airlines

  • Total flight time: 3h 46m - 5h 54m.
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 15 flights per week
  • Boeing 737-700 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737-900 (winglets) Passenger/BBJ3
    Boeing 737MAX 9 Passenger
SEA
 
Via PDX
 
ONT

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

Via Oakland with Southwest Airlines

  • Total flight time: 4h 15m - 6h 25m.
  • Low-cost airline
  • 13 flights per week
SEA
 
Via OAK
 
ONT
 
Flight
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05:55
05:55
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WN3786
WN488
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05:55
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WN3199
WN1067
06:00
06:00
06:00
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06:00
WN4527
WN3102
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06:50
06:50
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WN4527
WN1719
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06:50
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WN969
WN1400
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06:50
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WN297
WN2159
07:00
07:00
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07:00
WN823
WN3131
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07:15
07:15
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WN866
WN2446
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08:15
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WN988
WN2528
08:50
08:50
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08:50
WN1249
WN1286
09:10
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09:10
WN4433
WN1788
10:10
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10:10
WN1541
WN1916
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11:10
11:10
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WN1059
WN1916
12:25
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12:25
WN266
WN4900
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13:30
13:30
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WN3735
WN4702
13:40
13:40
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13:40
WN4211
WN4149
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14:35
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WN4211
WN945
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14:40
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WN4380
WN4589
15:15
15:15
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15:15
WN1059
WN4900
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15:20
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WN266
WN4626
15:25
15:25
15:25
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15:25
WN3735
WN1657
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16:20
16:20
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SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - ONT

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

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