Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £102.78

One-way from £58.41

A variety of 12 airline companies have direct flights to Ontario International to Seattle-Tacoma International, Volaris, Virgin Atlantic, SAS, Japan Airlines, Frontier, Qatar Airways, Korean Air, KLM, Delta Connection, WestJet, Hawaiian Airlines 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
WestJet666444414:2022:47VIEW FLIGHTS
Hawaiian Airlines555554500:1521:30VIEW FLIGHTS
Alaska Airlines555554508:2721:30VIEW FLIGHTS
Delta Connection444444407:3019:55VIEW FLIGHTS
Korean Air222222214:2022:47VIEW FLIGHTS
KLM222222214:2022:47VIEW FLIGHTS
Qatar Airways112222200:1521:30VIEW FLIGHTS
Volaris111111113:4216:36VIEW FLIGHTS
Virgin Atlantic111111119:5522:47VIEW FLIGHTS
SAS111111119:5522:47VIEW FLIGHTS
Japan Airlines111111115:2518:04VIEW FLIGHTS
Frontier111111113:4213:42VIEW FLIGHTS

WestJet offer the most direct flights from Seattle-Tacoma International to Ontario International with an average of 34 flights a week. The earliest flights are operated at 14:20 and the latest flights operated at 22:47 and the most common flight numbers are WS6439, WS6448, WS6683 and WS7083

For more details regarding WestJet flight information and bookings you can visit them at westjet.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
07:30
AirlineFlightNo
Delta ConnectionDL3593
08:27
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:43
AirlineFlightNo
Delta ConnectionDL3589
10:47
AirlineFlightNo
Alaska AirlinesAS1278
Hawaiian AirlinesHA6803
12:00
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:42
AirlineFlightNo
VolarisY42603
FrontierF93163
14:20
AirlineFlightNo
Korean AirKE3070
WestJetWS7644
KLMKL6208
Delta ConnectionDL4031
15:25
AirlineFlightNo
Alaska AirlinesAS1086
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
17:16
AirlineFlightNo
WestJetWS6448
WestJetWS7434
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS7394
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:30
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:47
AirlineFlightNo
WestJetWS6439
WestJetWS7637
VIEW FLIGHTS
Tuesday
07:30
AirlineFlightNo
Delta ConnectionDL3593
08:27
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:43
AirlineFlightNo
Delta ConnectionDL3589
10:47
AirlineFlightNo
Alaska AirlinesAS1278
Hawaiian AirlinesHA6803
12:00
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:42
AirlineFlightNo
VolarisY42603
FrontierF93163
14:20
AirlineFlightNo
Korean AirKE3070
WestJetWS6448
KLMKL6208
Delta ConnectionDL4031
15:25
AirlineFlightNo
Alaska AirlinesAS1086
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
17:16
AirlineFlightNo
WestJetWS7346
WestJetWS7644
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS7637
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:30
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:47
AirlineFlightNo
WestJetWS6439
WestJetWS7345
VIEW FLIGHTS
Wednesday
07:30
AirlineFlightNo
Delta ConnectionDL3593
08:27
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:43
AirlineFlightNo
Delta ConnectionDL3589
10:47
AirlineFlightNo
Alaska AirlinesAS1278
Hawaiian AirlinesHA6803
12:00
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:42
AirlineFlightNo
VolarisY42603
FrontierF93163
14:20
AirlineFlightNo
Korean AirKE3070
WestJetWS7346
KLMKL6208
Delta ConnectionDL4031
15:25
AirlineFlightNo
Alaska AirlinesAS1086
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
17:16
AirlineFlightNo
WestJetWS6448
WestJetWS7551
18:04
AirlineFlightNo
Qatar AirwaysQR3308
19:55
AirlineFlightNo
Delta ConnectionDL4027
21:30
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:47
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS6439
WestJetWS7345
WestJetWS7547
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Thursday
07:30
AirlineFlightNo
Delta ConnectionDL3593
08:27
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:43
AirlineFlightNo
Delta ConnectionDL3589
10:47
AirlineFlightNo
Alaska AirlinesAS1278
Hawaiian AirlinesHA6803
12:00
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:42
AirlineFlightNo
VolarisY42603
FrontierF93163
14:20
AirlineFlightNo
Korean AirKE3070
WestJetWS7551
KLMKL6208
Delta ConnectionDL4031
15:25
AirlineFlightNo
Alaska AirlinesAS1086
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
Qatar AirwaysQR3308
17:16
AirlineFlightNo
WestJetWS7346
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS7345
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:30
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:47
AirlineFlightNo
WestJetWS7547
VIEW FLIGHTS
Friday
07:30
AirlineFlightNo
Delta ConnectionDL3593
08:27
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:43
AirlineFlightNo
Delta ConnectionDL3589
10:47
AirlineFlightNo
Alaska AirlinesAS1278
Hawaiian AirlinesHA6803
12:00
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:42
AirlineFlightNo
VolarisY42603
FrontierF93163
14:20
AirlineFlightNo
Korean AirKE3070
WestJetWS7551
KLMKL6208
Delta ConnectionDL4031
15:25
AirlineFlightNo
Alaska AirlinesAS1086
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
Qatar AirwaysQR3308
17:16
AirlineFlightNo
WestJetWS7083
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS7547
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:30
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:47
AirlineFlightNo
WestJetWS6683
VIEW FLIGHTS
Saturday
07:30
AirlineFlightNo
Delta ConnectionDL3593
10:43
AirlineFlightNo
Delta ConnectionDL3589
10:47
AirlineFlightNo
Alaska AirlinesAS1278
Hawaiian AirlinesHA6803
12:00
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:42
AirlineFlightNo
VolarisY42603
FrontierF93163
14:20
AirlineFlightNo
Korean AirKE3070
WestJetWS7083
KLMKL6208
Delta ConnectionDL4031
15:20
AirlineFlightNo
Alaska AirlinesAS1086
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
Qatar AirwaysQR3308
17:16
AirlineFlightNo
WestJetWS7551
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS6683
WestJetWS7547
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:30
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Sunday
00:15
AirlineFlightNo
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
07:30
AirlineFlightNo
Delta ConnectionDL3593
08:27
AirlineFlightNo
Alaska AirlinesAS1254
10:47
AirlineFlightNo
Alaska AirlinesAS1278
10:55
AirlineFlightNo
Delta ConnectionDL3589
11:05
AirlineFlightNo
Hawaiian AirlinesHA6814
12:00
AirlineFlightNo
Alaska AirlinesAS1118
13:26
AirlineFlightNo
Hawaiian AirlinesHA6803
13:42
AirlineFlightNo
FrontierF93163
14:20
AirlineFlightNo
Delta ConnectionDL4031
14:46
AirlineFlightNo
Hawaiian AirlinesHA6813
15:25
AirlineFlightNo
Alaska AirlinesAS1086
16:36
AirlineFlightNo
VolarisY42603
17:16
AirlineFlightNo
Korean AirKE3070
WestJetWS7083
WestJetWS7551
KLMKL6208
18:04
AirlineFlightNo
Hawaiian AirlinesHA6812
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS6683
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:30
AirlineFlightNo
Alaska AirlinesAS1040
22:47
AirlineFlightNo
WestJetWS7547
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.

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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 £58.41 ($79 €67.58)
£58.41
$79 | €67.58
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 £102.78 ($139 €118.90)
£102.78
$139 | €118.90
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 Connection, Frontier, Hawaiian Airlines, Japan Airlines, KLM, Korean Air, Qatar Airways, SAS, 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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