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

We've found the cheapest flights to Ontario

Returns from £65.21

One-way from £32.60

Airliners including Jet Linx Aviation, Volaris, Frontier, SAS, Japan Airlines, Virgin Atlantic, Korean Air, Qatar Airways, KLM, WestJet, Hawaiian Airlines, Alaska Airlines and Delta Connection all offer direct flights between Seattle-Tacoma International to Ontario International. When travelling from Seattle-Tacoma International you will cover about 957 miles before you reach Ontario International. This journey will take 2 Hours 37 Minutes.

The exact cost of the flight we vary quite significantly base on the dates you travel, the time of day you will depart and how long in advance you pre book the flights. If you are on a tight budget then you should avoid flying at peak hours as the prices are more expensive. The cheapest flights are in the evenings and in mid week. Flight to Ontario International will get more expensive the nearer you get the departure date, so it’s advisable to book in advance if it is possible.

To see all airliners that offer flights between Seattle-Tacoma International and Ontario International please see the table below.

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 is the most popular airliners who operate this route. They have around 28 a week with times that vary between 08:20 and 19:55.

To book your flight you can visit Delta Connection on their website www.google.com/search?q=Delta Connection. You will find up to date information on availability and the latest discounts.

Flight times for the route are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:35
AirlineFlight  No
Korean AirKE3070
WestJetWS8642
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlight  No
Alaska AirlinesAS1086
18:20
AirlineFlight  No
WestJetWS7956
18:25
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
18:50
AirlineFlight  No
VolarisY42603
FrontierF93163
19:55
AirlineFlight  No
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:35
AirlineFlight  No
Korean AirKE3070
WestJetWS7956
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlight  No
Alaska AirlinesAS1086
18:20
AirlineFlight  No
WestJetWS8642
18:25
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlight  No
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:35
AirlineFlight  No
SASSK3676
VIEW FLIGHTS
Wednesday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:35
AirlineFlight  No
Korean AirKE3070
WestJetWS8642
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlight  No
Alaska AirlinesAS1086
18:20
AirlineFlight  No
WestJetWS7956
18:25
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlight  No
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Thursday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
13:50
AirlineFlight  No
VolarisY42603
FrontierF93163
15:35
AirlineFlight  No
Korean AirKE3070
WestJetWS8642
KLMKL6208
Delta ConnectionDL4031
15:53
AirlineFlight  No
Alaska AirlinesAS1086
18:20
AirlineFlight  No
WestJetWS8694
18:25
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlight  No
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Friday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
13:50
AirlineFlight  No
VolarisY42603
FrontierF93163
15:35
AirlineFlight  No
Korean AirKE3070
WestJetWS8694
KLMKL6208
Delta ConnectionDL4031
15:50
AirlineFlight  No
Jet Linx AviationJL6388
15:53
AirlineFlight  No
Alaska AirlinesAS1086
18:20
AirlineFlight  No
WestJetWS7956
18:25
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlight  No
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
13:50
AirlineFlight  No
VolarisY42603
FrontierF93163
15:35
AirlineFlight  No
Korean AirKE3070
WestJetWS7956
KLMKL6208
Delta ConnectionDL4031
15:50
AirlineFlight  No
Jet Linx AviationJL6388
18:20
AirlineFlight  No
WestJetWS8694
19:55
AirlineFlight  No
SASSK3676
WestJetWS8480
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
22:46
AirlineFlight  No
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
VIEW FLIGHTS
Sunday
08:20
AirlineFlight  No
Delta ConnectionDL4070
08:26
AirlineFlight  No
Alaska AirlinesAS1254
10:57
AirlineFlight  No
Hawaiian AirlinesHA6814
11:30
AirlineFlight  No
Delta ConnectionDL3946
13:18
AirlineFlight  No
Alaska AirlinesAS1097
13:50
AirlineFlight  No
FrontierF93163
15:35
AirlineFlight  No
Delta ConnectionDL4031
15:50
AirlineFlight  No
Hawaiian AirlinesHA6813
Jet Linx AviationJL6388
15:53
AirlineFlight  No
Alaska AirlinesAS1086
16:26
AirlineFlight  No
VolarisY42603
18:20
AirlineFlight  No
Korean AirKE3070
WestJetWS7956
WestJetWS8694
KLMKL6208
18:25
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2950
19:55
AirlineFlight  No
WestJetWS8480
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:15
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:35
AirlineFlight  No
SASSK3676
KLMKL6206
VIEW FLIGHTS

Please remember to leave plenty of time to get though customers when you are departing form the airports. Flights regulations are getting very strict these days so getting through customs can take in excess of 1 hour in some cases.

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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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Useful Information about Ontario Airport

Lounges at Ontario Airport

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Ontario Tourist Attractions

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