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

We've found the cheapest flights to Ontario

Returns from £54.37

One-way from £23.19

Airliners including Solairus Aviation, Frontier, Virgin Atlantic, Jet Linx Aviation, Alaska Horizon, Korean Air, KLM, Alaska Airlines, Qatar Airways, Delta Connection and Hawaiian 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 Airlines544554507:2023:59VIEW FLIGHTS
Qatar Airways322343314:4221:26VIEW FLIGHTS
Delta Connection333332307:4519:55VIEW FLIGHTS
Alaska Airlines322332307:2021:26VIEW FLIGHTS
Korean Air222222214:0522:42VIEW FLIGHTS
KLM222222214:0522:42VIEW FLIGHTS
Virgin Atlantic111111119:5522:42VIEW FLIGHTS
Jet Linx Aviation111111114:4217:21VIEW FLIGHTS
Alaska Horizon111111114:4214:48VIEW FLIGHTS
Frontier000100112:2912:29VIEW FLIGHTS
Solairus Aviation0000010VIEW FLIGHTS

Hawaiian Airlines is the most popular airliners who operate this route. They have around 32 a week with times that vary between 07:20 and 23:59.

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
Monday
07:20
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6511
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:53
AirlineFlight  No
Hawaiian AirlinesHA6667
14:05
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
14:48
AirlineFlight  No
Hawaiian AirlinesHA6503
Qatar AirwaysQR2105
Jet Linx AviationJL6388
Alaska HorizonAS2314
17:28
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:26
AirlineFlight  No
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
07:45
AirlineFlight  No
Delta ConnectionDL4070
10:25
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
12:58
AirlineFlight  No
Hawaiian AirlinesHA6511
14:05
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
14:48
AirlineFlight  No
Hawaiian AirlinesHA6503
Qatar AirwaysQR2105
Jet Linx AviationJL6388
Alaska HorizonAS2314
17:28
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
07:45
AirlineFlight  No
Delta ConnectionDL4070
10:25
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
12:58
AirlineFlight  No
Hawaiian AirlinesHA6511
14:05
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
14:48
AirlineFlight  No
Hawaiian AirlinesHA6503
Qatar AirwaysQR2105
Jet Linx AviationJL6388
Alaska HorizonAS2314
17:28
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Thursday
07:20
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6511
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:53
AirlineFlight  No
Hawaiian AirlinesHA6667
12:29
AirlineFlight  No
FrontierF93163
14:05
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
14:48
AirlineFlight  No
Hawaiian AirlinesHA6503
Qatar AirwaysQR2105
Jet Linx AviationJL6388
Alaska HorizonAS2314
17:28
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:26
AirlineFlight  No
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Friday
07:20
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6511
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:53
AirlineFlight  No
Hawaiian AirlinesHA6667
14:05
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
14:42
AirlineFlight  No
Hawaiian AirlinesHA6324
Qatar AirwaysQR2074
Jet Linx AviationJL6388
Alaska HorizonAS2119
17:28
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR2105
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:26
AirlineFlight  No
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
08:35
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
10:25
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
11:30
AirlineFlight  No
Solairus AviationTWY201
12:58
AirlineFlight  No
Hawaiian AirlinesHA6511
14:48
AirlineFlight  No
Hawaiian AirlinesHA6503
Qatar AirwaysQR2105
Jet Linx AviationJL6388
Alaska HorizonAS2314
18:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR4277
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:04
AirlineFlight  No
Qatar AirwaysQR3355
VIEW FLIGHTS
Sunday
07:20
AirlineFlight  No
Alaska AirlinesAS1097
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:53
AirlineFlight  No
Hawaiian AirlinesHA6511
Hawaiian AirlinesHA6667
12:29
AirlineFlight  No
FrontierF93163
14:05
AirlineFlight  No
Delta ConnectionDL4031
14:48
AirlineFlight  No
Alaska HorizonAS2314
16:54
AirlineFlight  No
Korean AirKE3070
KLMKL6284
17:21
AirlineFlight  No
Hawaiian AirlinesHA6503
Qatar AirwaysQR2105
Jet Linx AviationJL6388
17:28
AirlineFlight  No
Alaska AirlinesAS1003
19:55
AirlineFlight  No
Delta ConnectionDL4027
20:00
AirlineFlight  No
Hawaiian AirlinesHA6493
Qatar AirwaysQR3355
Qatar AirwaysQR4277
21:26
AirlineFlight  No
Alaska AirlinesAS1040
22:42
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Virgin AtlanticVS5376
23:59
AirlineFlight  No
Hawaiian AirlinesHA6811
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
Seattle Boeing Field King County to Ontario02 Hours 38 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 Frontier 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 £23.19 ($29 €27.91)
£23.19
$29 | €27.91
Check Latest Price
DIRECT Frontier 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 £54.37 ($68 €65.43)
£54.37
$68 | €65.43
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, Alaska Horizon, Delta Connection, Frontier, Hawaiian Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Solairus Aviation, 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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