Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £65.21

One-way from £32.60

A variety of 13 airline companies have direct flights to Ontario International to Seattle-Tacoma International, Jet Linx Aviation, Volaris, Frontier, SAS, Japan Airlines, Virgin Atlantic, Korean Air, Qatar Airways, KLM, WestJet, Hawaiian Airlines, Alaska Airlines and Delta Connection. 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
Delta Connection444444408:2019:55VIEW FLIGHTS
Hawaiian Airlines444443408:2620:15VIEW FLIGHTS
Alaska Airlines444443408:2620:15VIEW FLIGHTS
WestJet333333315:3519:55VIEW FLIGHTS
KLM222222215:3522:35VIEW FLIGHTS
Qatar Airways222221218:2520:15VIEW FLIGHTS
Virgin Atlantic111111119:5519:55VIEW FLIGHTS
Korean Air111111115:3518:20VIEW FLIGHTS
SAS011111119:5522:35VIEW FLIGHTS
Japan Airlines111111013:1813:18VIEW FLIGHTS
Volaris100111113:5018:50VIEW FLIGHTS
Frontier100111113:5018:50VIEW FLIGHTS
Jet Linx Aviation000011115:5015:50VIEW FLIGHTS

Delta Connection offer the most direct flights from Seattle-Tacoma International to Ontario International with an average of 28 flights a week. The earliest flights are operated at 08:20 and the latest flights operated at 19:55 and the most common flight numbers are DL3946, DL4027, DL4031 and DL4070

For more details regarding Delta Connection flight information and bookings you can visit them at www.google.com/search?q=Delta Connection

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
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:35
AirlineFlightNo
Korean AirKE3070
WestJetWS8642
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlightNo
Alaska AirlinesAS1086
18:20
AirlineFlightNo
WestJetWS7956
18:25
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
18:50
AirlineFlightNo
VolarisY42603
FrontierF93163
19:55
AirlineFlightNo
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:35
AirlineFlightNo
Korean AirKE3070
WestJetWS7956
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlightNo
Alaska AirlinesAS1086
18:20
AirlineFlightNo
WestJetWS8642
18:25
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlightNo
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:35
AirlineFlightNo
SASSK3676
VIEW FLIGHTS
Wednesday
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:35
AirlineFlightNo
Korean AirKE3070
WestJetWS8642
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlightNo
Alaska AirlinesAS1086
18:20
AirlineFlightNo
WestJetWS7956
18:25
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlightNo
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Thursday
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
13:50
AirlineFlightNo
VolarisY42603
FrontierF93163
15:35
AirlineFlightNo
Korean AirKE3070
WestJetWS8642
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlightNo
Alaska AirlinesAS1086
18:20
AirlineFlightNo
WestJetWS8694
18:25
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlightNo
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Friday
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
13:50
AirlineFlightNo
VolarisY42603
FrontierF93163
15:35
AirlineFlightNo
Korean AirKE3070
WestJetWS8694
KLMKL6208
Delta ConnectionDL4031
15:50
AirlineFlightNo
Jet Linx AviationJL6388
15:53
AirlineFlightNo
Alaska AirlinesAS1086
18:20
AirlineFlightNo
WestJetWS7956
18:25
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlightNo
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
13:50
AirlineFlightNo
VolarisY42603
FrontierF93163
15:35
AirlineFlightNo
Korean AirKE3070
WestJetWS7956
KLMKL6208
Delta ConnectionDL4031
15:50
AirlineFlightNo
Jet Linx AviationJL6388
18:20
AirlineFlightNo
WestJetWS8694
19:55
AirlineFlightNo
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
22:46
AirlineFlightNo
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Sunday
08:20
AirlineFlightNo
Delta ConnectionDL4070
08:26
AirlineFlightNo
Alaska AirlinesAS1254
10:57
AirlineFlightNo
Hawaiian AirlinesHA6814
11:30
AirlineFlightNo
Delta ConnectionDL3946
13:18
AirlineFlightNo
Alaska AirlinesAS1097
13:50
AirlineFlightNo
FrontierF93163
15:35
AirlineFlightNo
Delta ConnectionDL4031
15:50
AirlineFlightNo
Hawaiian AirlinesHA6813
Jet Linx AviationJL6388
15:53
AirlineFlightNo
Alaska AirlinesAS1086
16:26
AirlineFlightNo
VolarisY42603
18:20
AirlineFlightNo
Korean AirKE3070
WestJetWS7956
WestJetWS8694
KLMKL6208
18:25
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlightNo
WestJetWS8480
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:35
AirlineFlightNo
SASSK3676
KLMKL6206
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 £32.60 ($44 €38.84)
£32.60
$44 | €38.84
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 £65.21 ($88 €77.68)
£65.21
$88 | €77.68
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, Jet Linx Aviation, 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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