Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £104.18

One-way from £65.68

A variety of 9 airline companies have direct flights to Ontario International to Seattle-Tacoma International, WestJet, Virgin Atlantic, Korean Air, Jet Linx Aviation, Qatar Airways, KLM, Hawaiian Airlines, Delta Connection and Alaska Airlines. The distance covered when flying from Seattle-Tacoma International to Ontario International United States is 1,540 Km (957 Miles) with the travel time being around 2 Hours 37 Minutes. SEA is the Airport code for Seattle-Tacoma International and ONT is for Ontario International United States.

The cost of ticket prices to Ontario International United States can vary quite considerably if you travel at certain times of the week especially at weekends. It is normally worth booking flights well in advance if possible to get the best deal to Ontario International United States perhaps midweek or late evening. Please book in advance if you want to take advantage of the best prices airlines have to offer as prices normally increase as time goes on.

Below you can see a table that shows the airlines that fly from Seattle-Tacoma International (SEA) to Ontario International (ONT) and frequency of flights daily.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Hawaiian Airlines333200007:0023:59VIEW FLIGHTS
Delta Connection333200008:3019:50VIEW FLIGHTS
Alaska Airlines333200007:0021:24VIEW FLIGHTS
Qatar Airways222100015:3723:59VIEW FLIGHTS
KLM222100014:3019:50VIEW FLIGHTS
Korean Air111100014:3017:13VIEW FLIGHTS
Jet Linx Aviation111100015:3718:13VIEW FLIGHTS
Virgin Atlantic111000019:5019:50VIEW FLIGHTS
WestJet100000014:3014:30VIEW FLIGHTS

Hawaiian Airlines offer the most direct flights from Seattle-Tacoma International to Ontario International with 1 flight a week. This flight departs 07:00 and the flight number is normally HA6828, HA6829 and HA6836

For more details regarding Hawaiian Airlines flight information and bookings you can visit them at hawaiianair.com

Please see below the times of flights. These times and frequency may vary at different times of the year please visit the website for more information.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
07:00
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:30
AirlineFlightNo
Delta ConnectionDL4070
14:30
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6270
Delta ConnectionDL4031
15:37
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
19:50
AirlineFlightNo
KLMKL6269
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:24
AirlineFlightNo
Alaska AirlinesAS489
23:59
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Tuesday
07:00
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:30
AirlineFlightNo
Delta ConnectionDL4070
14:30
AirlineFlightNo
Delta ConnectionDL4031
15:37
AirlineFlightNo
Alaska AirlinesAS592
17:13
AirlineFlightNo
Korean AirKE3070
KLMKL6270
18:13
AirlineFlightNo
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
19:50
AirlineFlightNo
KLMKL6269
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:24
AirlineFlightNo
Alaska AirlinesAS489
23:59
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Wednesday
07:00
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:30
AirlineFlightNo
Delta ConnectionDL4070
14:30
AirlineFlightNo
Delta ConnectionDL4031
15:37
AirlineFlightNo
Alaska AirlinesAS592
17:13
AirlineFlightNo
Korean AirKE3070
KLMKL6270
18:13
AirlineFlightNo
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
19:50
AirlineFlightNo
KLMKL6269
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:24
AirlineFlightNo
Alaska AirlinesAS489
23:59
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Thursday
07:00
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
11:18
AirlineFlightNo
Delta ConnectionDL4070
17:13
AirlineFlightNo
Korean AirKE3070
KLMKL6270
Delta ConnectionDL4031
18:13
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
VIEW FLIGHTS

Don’t forget that flight regulations are getting tight so we recommend you leave plenty of time to get through customs at Seattle-Tacoma International.

Looking for the best deals on rental cars?

Search for cheap vehicle hire in Seattle

Flight Price FAQ - Seattle (SEA) to Ontario (ONT)

DIRECT Hawaiian Airlines
What is the cheapest direct flight one way from Seattle SEA to Ontario ONT?
The cheapest direct flight one way from Seattle SEA to Ontario ONT is £65.68 ($87 €75.33)
£65.68
$87 | €75.33
Check Latest Price
DIRECT Delta
What is the cheapest direct return flight from Seattle SEA to Ontario ONT?
The cheapest direct return flight from Seattle SEA to Ontario ONT is £104.18 ($138 €119.49)
£104.18
$138 | €119.49
Check Latest Price
1+ STOP(S)
What is the cheapest flight one way from Seattle SEA to Ontario ONT?
The cheapest flight one way from Seattle SEA to Ontario ONT is £55.87 ($74 €64.07)
£55.87
$74 | €64.07
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from SEA to ONT

Was your flight delayed or cancelled?

Was your flight delayed or cancelled?

You may be eligible to receive up to 600 EUR compensation per person in your party.

Claim Now!

Flight Info FAQ - Seattle (SEA) to Ontario (ONT)

Who flies from Seattle to Ontario?
The following airlines fly from Seattle (SEA) to Ontario (ONT): Alaska Airlines, Delta Connection, Hawaiian Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Virgin Atlantic, WestJet.
How far is the flight from Seattle to Ontario?
The flight from Seattle to Ontario is 1,540KM or 957 miles.
How long does the flight from Seattle to Ontario to take?
The flight from Seattle to Ontario takes 2 Hours 37 Minutes.

Alternative Airports in United States with Connections from Seattle Airport

Planning a Holiday or Business Trip?

Find cheap car hire deals at SEA

Useful Information about Seattle Airport

Lounges at Seattle Airport

See all the airport lounges, locations and opening times available at Seattle Airport

View...
Eating and Drinking at Seattle Airport

See all bars and restaurants at Seattle Airport, including locations and if they are before or after check-in

View...
Duty Free Shopping at Seattle Airport

See all shops available at Seattle Airport - plan your duty free shopping in advance

View...
Seattle Tourist Attractions

From wine tasting to a coffee & chocolate walking tour, just some of the things to see in Seattle..

View...