Flights from Seattle to Ontario

SEAONT

Seattle–Tacoma International Airport (Seattle, United States) → Ontario International Airport (Ontario, United States)

Nonstop
2h 35m
Distance
1,540 km
Frequency
7×/week
One-way from
$102
Airlines
Alaska Airlines, Delta Air Lines, Frontier Airlines
Book on Aviasales

Fares by month

One-way, per person

Lowest fares Aviasales travelers found in recent searches; some may include a connection. Prices change often — tap a month to see live fares.

Weekly schedule

Monday

  • AS57508:34→11:182h 44mAlaska Airlines
  • F9227610:50→13:382h 48mFrontier Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:41→18:172h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines
  • AS48920:31→23:062h 35mAlaska Airlines

Tuesday

  • AS57508:34→11:182h 44mAlaska Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:45→18:212h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines

Wednesday

  • AS57508:34→11:182h 44mAlaska Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:41→18:172h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines

Thursday

  • AS57508:34→11:182h 44mAlaska Airlines
  • F9227610:50→13:382h 48mFrontier Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:41→18:172h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines
  • AS48920:31→23:062h 35mAlaska Airlines

Friday

  • AS57508:34→11:182h 44mAlaska Airlines
  • F9227610:50→13:382h 48mFrontier Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:41→18:172h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines
  • AS48920:31→23:062h 35mAlaska Airlines

Saturday

  • AS57508:34→11:182h 44mAlaska Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:41→18:172h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines

Sunday

  • DL407008:25→11:163h 51mDelta Air Lines
  • AS57508:34→11:183h 44mAlaska Airlines
  • F9227610:50→13:382h 48mFrontier Airlines
  • AS57112:31→15:132h 42mAlaska Airlines
  • DL403114:30→17:122h 42mDelta Air Lines
  • AS59415:41→18:172h 36mAlaska Airlines
  • DL398719:56→22:432h 47mDelta Air Lines
  • AS48920:31→23:062h 35mAlaska Airlines

Seattle to Ontario — frequently asked

How long is the flight from Seattle to Ontario?
SEA–ONT is 2h 35m nonstop, covering 1,540 km (957 mi).
Which airlines fly nonstop from Seattle to Ontario?
Alaska Airlines, Delta Air Lines, Frontier Airlines operate this route nonstop.
How much is a flight from Seattle to Ontario?
One-way fares on SEA–ONT recently started from $102. Fares change daily, so check current prices before booking.
How often do flights run from Seattle to Ontario?
The route is served 7 days a week (44 scheduled departures).