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

We've found the cheapest flights to Ontario

Returns from £65.94

One-way from £32.97

Airliners including Air Transport International, Volaris, Frontier, Japan Airlines, Aeromexico, Qatar Airways, Virgin Atlantic, Korean Air, WestJet, KLM, Hawaiian Airlines, Alaska Airlines and Delta Connection 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
Delta Connection444444408:2019:59VIEW FLIGHTS
Hawaiian Airlines423443408:1323:59VIEW FLIGHTS
Alaska Airlines423443408:1321:22VIEW FLIGHTS
WestJet223244416:4422:43VIEW FLIGHTS
KLM333333308:2022:43VIEW FLIGHTS
Virgin Atlantic222222208:2022:43VIEW FLIGHTS
Korean Air222222216:4422:43VIEW FLIGHTS
Qatar Airways211221214:5623:59VIEW FLIGHTS
Japan Airlines111111112:5917:55VIEW FLIGHTS
Aeromexico111111108:2011:05VIEW FLIGHTS
Volaris100100118:5021:25VIEW FLIGHTS
Frontier100100118:5018:52VIEW FLIGHTS
Air Transport International000010016:1516:15VIEW FLIGHTS

Delta Connection is the most popular airliners who operate this route. They have around 28 a week with times that vary between 08:20 and 19:59.

Would you like to book your flight? Bookings can be made direct with Delta Connection on their website www.google.com/search?q=Delta Connection.

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
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
14:56
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7598
WestJetWS8642
KLMKL6208
18:52
AirlineFlight  No
VolarisY42603
FrontierF93163
19:59
AirlineFlight  No
Delta ConnectionDL4027
21:22
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:43
AirlineFlight  No
Korean AirKE3106
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Tuesday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
14:00
AirlineFlight  No
Delta ConnectionDL4031
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7598
WestJetWS8642
KLMKL6208
17:55
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4757
Japan AirlinesJL6388
Qatar AirwaysQR4277
19:59
AirlineFlight  No
Korean AirKE3106
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7598
WestJetWS8642
KLMKL6208
17:55
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4757
Qatar AirwaysQR4277
19:59
AirlineFlight  No
Korean AirKE3106
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
22:43
AirlineFlight  No
WestJetWS6551
VIEW FLIGHTS
Thursday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
11:05
AirlineFlight  No
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
14:56
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS8642
KLMKL6208
18:50
AirlineFlight  No
VolarisY42603
FrontierF93163
19:59
AirlineFlight  No
Delta ConnectionDL4027
21:22
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:43
AirlineFlight  No
Korean AirKE3106
WestJetWS6551
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Friday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
14:56
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
16:15
AirlineFlight  No
Air Transport International8C6711
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7400
WestJetWS8642
KLMKL6208
19:59
AirlineFlight  No
Delta ConnectionDL4027
21:22
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:43
AirlineFlight  No
Korean AirKE3106
WestJetWS5465
WestJetWS6551
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Saturday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7400
WestJetWS8642
KLMKL6208
17:55
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4757
Qatar AirwaysQR4277
20:15
AirlineFlight  No
Delta ConnectionDL4027
22:57
AirlineFlight  No
Korean AirKE3106
WestJetWS5465
WestJetWS6551
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Sunday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
08:20
AirlineFlight  No
Delta ConnectionDL4070
10:51
AirlineFlight  No
Hawaiian AirlinesHA6814
11:05
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
14:00
AirlineFlight  No
Delta ConnectionDL4031
15:32
AirlineFlight  No
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:56
AirlineFlight  No
Alaska AirlinesAS1086
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7400
WestJetWS8642
KLMKL6208
18:30
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
18:50
AirlineFlight  No
FrontierF93163
19:59
AirlineFlight  No
Korean AirKE3106
WestJetWS5465
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:22
AirlineFlight  No
Alaska AirlinesAS1003
21:25
AirlineFlight  No
VolarisY42603
22:43
AirlineFlight  No
WestJetWS6551
23:59
AirlineFlight  No
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
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
Bellingham to Ontario 02 Hours 48 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 £32.97 ($44 €38.72)
£32.97
$44 | €38.72
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 £65.94 ($88 €77.43)
£65.94
$88 | €77.43
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): Aeromexico, Air Transport International, Alaska Airlines, Delta Connection, Frontier, Hawaiian Airlines, Japan Airlines, KLM, Korean Air, Qatar Airways, Virgin Atlantic, Volaris, 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.

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