Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £95.50

One-way from £47.38

A variety of 13 airline companies have direct flights to Ontario International to Seattle-Tacoma International, Frontier, Volaris, Delta Air Lines, Virgin Atlantic, SAS, Japan Airlines, WestJet, Qatar Airways, Korean Air, KLM, Delta Connection, 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
Alaska Airlines443444300:0321:17VIEW FLIGHTS
Hawaiian Airlines443444200:0321:17VIEW FLIGHTS
Delta Connection322222208:3019:50VIEW FLIGHTS
Korean Air222222214:1522:42VIEW FLIGHTS
KLM222222214:1522:42VIEW FLIGHTS
WestJet222221114:1517:11VIEW FLIGHTS
Qatar Airways221222100:0321:17VIEW FLIGHTS
Virgin Atlantic111111119:5022:42VIEW FLIGHTS
SAS111111119:5022:42VIEW FLIGHTS
Japan Airlines111111118:4718:47VIEW FLIGHTS
Volaris100220112:0515:18VIEW FLIGHTS
Delta Air Lines011111108:0508:05VIEW FLIGHTS
Frontier110110112:0520:42VIEW FLIGHTS

Alaska Airlines offer the most direct flights from Seattle-Tacoma International to Ontario International with an average of 26 flights a week. The earliest flights are operated at 00:03 and the latest flights operated at 21:17 and the most common flight numbers are AS1040, AS1086, AS1118 and AS1254

For more details regarding Alaska Airlines flight information and bookings you can visit them at alaskaair.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
07:55
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:30
AirlineFlightNo
Delta ConnectionDL3593
11:25
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
13:20
AirlineFlightNo
VolarisY42451
FrontierF93163
14:15
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6208
Delta ConnectionDL4031
15:55
AirlineFlightNo
Alaska AirlinesAS1086
17:11
AirlineFlightNo
WestJetWS7621
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:17
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
00:03
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
07:55
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:05
AirlineFlightNo
Delta Air LinesDL1561
11:25
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
14:15
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6208
Delta ConnectionDL4031
15:55
AirlineFlightNo
Alaska AirlinesAS1086
17:11
AirlineFlightNo
WestJetWS7621
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:42
AirlineFlightNo
FrontierF92276
VIEW FLIGHTS
Wednesday
07:55
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:05
AirlineFlightNo
Delta Air LinesDL1561
11:25
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
14:15
AirlineFlightNo
Korean AirKE3070
WestJetWS7621
KLMKL6208
Delta ConnectionDL4031
15:55
AirlineFlightNo
Alaska AirlinesAS1086
17:11
AirlineFlightNo
WestJetWS8373
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Thursday
07:55
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:05
AirlineFlightNo
Delta Air LinesDL1561
11:25
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
12:05
AirlineFlightNo
VolarisY42451
FrontierF93163
14:15
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6208
Delta ConnectionDL4031
14:53
AirlineFlightNo
VolarisY42461
15:55
AirlineFlightNo
Alaska AirlinesAS1086
17:11
AirlineFlightNo
WestJetWS7621
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Korean AirKE3106
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:17
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:42
AirlineFlightNo
SASSK3676
VIEW FLIGHTS
Friday
07:55
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:05
AirlineFlightNo
Delta Air LinesDL1561
11:25
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
12:30
AirlineFlightNo
VolarisY42461
FrontierF93163
14:15
AirlineFlightNo
Korean AirKE3070
WestJetWS7621
KLMKL6208
Delta ConnectionDL4031
15:18
AirlineFlightNo
VolarisY42451
15:55
AirlineFlightNo
Alaska AirlinesAS1086
17:11
AirlineFlightNo
WestJetWS8373
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:17
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
00:03
AirlineFlightNo
Alaska AirlinesAS1040
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
07:55
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:05
AirlineFlightNo
Delta Air LinesDL1561
11:25
AirlineFlightNo
Alaska AirlinesAS1118
Hawaiian AirlinesHA6813
14:15
AirlineFlightNo
Korean AirKE3070
WestJetWS7621
KLMKL6208
Delta ConnectionDL4031
15:55
AirlineFlightNo
Alaska AirlinesAS1086
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Sunday
08:05
AirlineFlightNo
Delta Air LinesDL1561
11:25
AirlineFlightNo
Alaska AirlinesAS1118
12:05
AirlineFlightNo
FrontierF93163
14:12
AirlineFlightNo
Hawaiian AirlinesHA6813
14:15
AirlineFlightNo
Delta ConnectionDL4031
14:53
AirlineFlightNo
VolarisY42461
15:55
AirlineFlightNo
Alaska AirlinesAS1086
17:11
AirlineFlightNo
Korean AirKE3070
WestJetWS7621
KLMKL6208
18:47
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR3308
19:50
AirlineFlightNo
Delta ConnectionDL4027
21:17
AirlineFlightNo
Alaska AirlinesAS1040
22:42
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Virgin AtlanticVS5376
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 £47.38 ($64 €54.60)
£47.38
$64 | €54.60
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 £95.50 ($129 €110.05)
£95.50
$129 | €110.05
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, 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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