Seattle Airport (SEA) Flights to Ontario International Airport Airport (ONT)

We've found the cheapest flights to Ontario

Returns from £96

One-way from £68.89

Airliners including Delta Air Lines, Virgin Atlantic, Qatar Airways, KLM, Jet Linx Aviation, Delta Connection, Korean Air, Hawaiian Airlines and Alaska Airlines all offer direct flights between Seattle-Tacoma International to Ontario International. The flight from Seattle-Tacoma International to Ontario International is approximately 1,540 Kilometers which is 957 Miles. You should expect a flight time of around 2 Hours 37 Minutes.

Depending on the day of the week and the time of day you book, flight prices can vary dramatically. To obtain the best prices for Ontario International flights than book well in advance. If it is possible, you should book your flights 2 or more months in advance as ticket prices will be substantially lower.

Below you will see all the airlines that fly from Seattle-Tacoma International (SEA) to Ontario International (ONT) and the number of flights they operate each day.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Hawaiian Airlines002333311:0823:32VIEW FLIGHTS
Alaska Airlines002333308:3023:32VIEW FLIGHTS
Korean Air002222211:1522:37VIEW FLIGHTS
Delta Connection002222111:1520:00VIEW FLIGHTS
Virgin Atlantic001111119:5522:37VIEW FLIGHTS
Qatar Airways001111120:3623:32VIEW FLIGHTS
KLM001111119:5522:37VIEW FLIGHTS
Jet Linx Aviation001111115:0815:08VIEW FLIGHTS
Delta Air Lines000000122:3722:37VIEW FLIGHTS

Hawaiian Airlines is the most popular airliners who operate this route. They have around 14 a week with times that vary between 11:08 and 23:32.

Would you like to book your flight? Bookings can be made direct with Hawaiian Airlines on their website hawaiianair.com.

The flight time for the selected route vary based on the month you will travel, but below we has summarised the most common times they will fly. We recommend you only take these times as guidance and check with appropriate airline for the exact times for the date you depart.

Flights Time In WeekDays
DayFlight TimesFlights
Wednesday
11:15
AirlineFlight  No
Korean AirKE3070
Delta ConnectionDL4031
12:31
AirlineFlight  No
Alaska AirlinesAS664
15:08
AirlineFlight  No
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
18:00
AirlineFlight  No
Alaska AirlinesAS592
20:00
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
20:36
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
VIEW FLIGHTS
Thursday
08:30
AirlineFlight  No
Alaska AirlinesAS1364
11:08
AirlineFlight  No
Hawaiian AirlinesHA6836
11:15
AirlineFlight  No
Korean AirKE3070
Delta ConnectionDL4031
12:30
AirlineFlight  No
Alaska AirlinesAS664
15:08
AirlineFlight  No
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
20:56
AirlineFlight  No
Alaska AirlinesAS592
23:32
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
VIEW FLIGHTS
Friday
08:30
AirlineFlight  No
Alaska AirlinesAS1364
11:08
AirlineFlight  No
Hawaiian AirlinesHA6836
11:15
AirlineFlight  No
Korean AirKE3070
Delta ConnectionDL4031
12:30
AirlineFlight  No
Alaska AirlinesAS664
15:08
AirlineFlight  No
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
20:56
AirlineFlight  No
Alaska AirlinesAS592
23:32
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
VIEW FLIGHTS
Saturday
08:30
AirlineFlight  No
Alaska AirlinesAS1364
11:08
AirlineFlight  No
Hawaiian AirlinesHA6836
11:15
AirlineFlight  No
Korean AirKE3070
Delta ConnectionDL4031
12:30
AirlineFlight  No
Alaska AirlinesAS664
15:08
AirlineFlight  No
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
20:56
AirlineFlight  No
Alaska AirlinesAS592
23:32
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
VIEW FLIGHTS
Sunday
11:08
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
13:54
AirlineFlight  No
Korean AirKE3070
Delta ConnectionDL4031
15:08
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
22:37
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta Air LinesDL4027
Virgin AtlanticVS5470
23:32
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
VIEW FLIGHTS

Other routes are also possible. Flying from a different airport may offer more convenient flight times, so below we have we have put a list of other routes that may well be suitable.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Mount Vernon to Ontario02 Hours 45 Minutes

If you are planning to hire a car from Ontario International airport then don’t wait until you arrive. The prices are typically 20% to 30% higher and the availability of vehicles are much lower. You can check out the solutions we have for car hire on our car hire pages which can save you £££’s.

Looking for the best car hire deals?

Find cheap car rentals in Ontario

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 £68.89 ($94 €79.24)
£68.89
$94 | €79.24
Check Latest Price
DIRECT Alaska Airlines
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 £96 ($131 €110.44)
£96
$131 | €110.44
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 £43.97 ($60 €50.58)
£43.97
$60 | €50.58
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from Seattle SEA to Ontario ONT?
The cheapest return flight from Seattle SEA to Ontario ONT is £93.07 ($127 €107.06)
£93.07
$127 | €107.06
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

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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 Air Lines, Delta Connection, Hawaiian Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Virgin Atlantic.
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.

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