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

We've found the cheapest flights to Ontario

Returns from £73.85

One-way from £31.31

Airliners including Delta Air Lines, Frontier, Virgin Atlantic, KLM, Japan Airlines, WestJet, Qatar Airways, Korean Air, Delta Connection, Hawaiian Airlines and Alaska Airlines 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
Hawaiian Airlines422442408:0023:12VIEW FLIGHTS
Alaska Airlines422442408:0020:38VIEW FLIGHTS
Korean Air222222212:4022:32VIEW FLIGHTS
Delta Connection222222212:4019:45VIEW FLIGHTS
Qatar Airways211221215:4023:12VIEW FLIGHTS
WestJet111122212:4015:25VIEW FLIGHTS
Virgin Atlantic111111119:4522:32VIEW FLIGHTS
KLM111111119:4522:32VIEW FLIGHTS
Japan Airlines111111112:4017:40VIEW FLIGHTS
Frontier000100116:3516:35VIEW FLIGHTS
Delta Air Lines010000012:4012:40VIEW FLIGHTS

Hawaiian Airlines is the most popular airliners who operate this route. They have around 22 a week with times that vary between 08:00 and 23:12.

To book your flight you can visit Hawaiian Airlines on their website hawaiianair.com. 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
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Korean AirKE3070
WestJetWS7450
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
Japan AirlinesJL6388
Delta ConnectionDL4031
15:40
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Qatar AirwaysQR2105
19:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:05
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6606
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Korean AirKE3070
Delta Air LinesDL4031
15:25
AirlineFlight  No
WestJetWS7450
Delta ConnectionDL4031
17:40
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4889
Japan AirlinesJL6388
Qatar AirwaysQR2105
19:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Korean AirKE3070
Delta ConnectionDL4031
15:25
AirlineFlight  No
WestJetWS7450
17:40
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4889
Japan AirlinesJL6388
Qatar AirwaysQR2105
19:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Thursday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Korean AirKE3070
WestJetWS7450
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
Japan AirlinesJL6388
Delta ConnectionDL4031
15:40
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Qatar AirwaysQR2105
16:35
AirlineFlight  No
FrontierF93163
19:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:05
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6606
Qatar AirwaysQR4277
VIEW FLIGHTS
Friday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Korean AirKE3070
WestJetWS7450
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
Japan AirlinesJL6388
Delta ConnectionDL4031
15:25
AirlineFlight  No
WestJetWS7083
15:40
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Qatar AirwaysQR2105
19:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:05
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6606
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Korean AirKE3070
WestJetWS7083
Delta ConnectionDL4031
15:25
AirlineFlight  No
WestJetWS7450
15:40
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Japan AirlinesJL6388
Qatar AirwaysQR2105
19:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Sunday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
10:38
AirlineFlight  No
Hawaiian AirlinesHA6814
12:40
AirlineFlight  No
Delta ConnectionDL4031
12:45
AirlineFlight  No
Alaska AirlinesAS1097
15:16
AirlineFlight  No
Hawaiian AirlinesHA6667
Japan AirlinesJL6388
15:25
AirlineFlight  No
Korean AirKE3070
WestJetWS7083
WestJetWS7450
15:40
AirlineFlight  No
Alaska AirlinesAS1086
16:35
AirlineFlight  No
FrontierF93163
18:13
AirlineFlight  No
Hawaiian AirlinesHA6607
Qatar AirwaysQR2105
19:45
AirlineFlight  No
Delta ConnectionDL4027
20:38
AirlineFlight  No
Alaska AirlinesAS1003
22:32
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Virgin AtlanticVS5376
23:12
AirlineFlight  No
Hawaiian AirlinesHA6606
Qatar AirwaysQR4277
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 £31.31 ($39 €37.59)
£31.31
$39 | €37.59
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 £73.85 ($92 €88.67)
£73.85
$92 | €88.67
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, Virgin Atlantic, 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

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