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

We've found the cheapest flights to Ontario

Returns from £45.91

One-way from £22.95

Airliners including Frontier, Japan Airlines, Virgin Atlantic, Korean Air, KLM, Qatar Airways, Delta Connection, Alaska Airlines and Hawaiian Airlines all offer direct flights between Seattle-Tacoma International to Ontario International. The flight from Seattle-Tacoma International to Ontario International is approximately 1,540 Kilometers which is 957 Miles. You should expect a flight time of around 2 Hours 37 Minutes.

Depending on the day of the week and the time of day you book, flight prices can vary dramatically. To obtain the best prices for Ontario International flights than book well in advance. If it is possible, you should book your flights 2 or more months in advance as ticket prices will be substantially lower.

Below you will see all the airlines that fly from Seattle-Tacoma International (SEA) to Ontario International (ONT) and the number of flights they operate each day.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Hawaiian Airlines755765706:3123:59VIEW FLIGHTS
Alaska Airlines533543506:3121:26VIEW FLIGHTS
Delta Connection333332307:4519:55VIEW FLIGHTS
Qatar Airways322322315:0223:59VIEW FLIGHTS
Korean Air222222214:0022:45VIEW FLIGHTS
KLM222222214:0022:45VIEW FLIGHTS
Virgin Atlantic111112119:5522:45VIEW FLIGHTS
Japan Airlines111111112:4718:32VIEW FLIGHTS
Frontier100111119:1919:28VIEW FLIGHTS

Hawaiian Airlines is the most popular airliners who operate this route. They have around 42 a week with times that vary between 06:31 and 23:59.

Would you like to book your flight? Bookings can be made direct with Hawaiian Airlines on their website hawaiianair.com.

The flight time for the selected route vary based on the month you will travel, but below we has summarised the most common times they will fly. We recommend you only take these times as guidance and check with appropriate airline for the exact times for the date you depart.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
06:31
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6608
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:04
AirlineFlight  No
Hawaiian AirlinesHA6814
10:51
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
14:00
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
15:02
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Japan AirlinesJL6388
Qatar AirwaysQR2105
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6606
Qatar AirwaysQR3355
19:28
AirlineFlight  No
FrontierF93163
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:03
AirlineFlight  No
Hawaiian AirlinesHA6493
21:26
AirlineFlight  No
Alaska AirlinesAS423
Hawaiian AirlinesHA6602
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
07:45
AirlineFlight  No
Delta ConnectionDL4070
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:33
AirlineFlight  No
Hawaiian AirlinesHA6608
12:47
AirlineFlight  No
Alaska AirlinesAS1064
Hawaiian AirlinesHA4950
Japan AirlinesJL6388
14:00
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Hawaiian AirlinesHA6606
Qatar AirwaysQR2105
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
07:45
AirlineFlight  No
Delta ConnectionDL4070
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:33
AirlineFlight  No
Hawaiian AirlinesHA6608
12:47
AirlineFlight  No
Alaska AirlinesAS1064
Hawaiian AirlinesHA4950
Japan AirlinesJL6388
14:00
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR2105
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:03
AirlineFlight  No
Hawaiian AirlinesHA6606
Qatar AirwaysQR3355
VIEW FLIGHTS
Thursday
06:31
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6608
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:04
AirlineFlight  No
Hawaiian AirlinesHA6814
10:51
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
14:00
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
15:02
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Japan AirlinesJL6388
Qatar AirwaysQR2105
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6606
Qatar AirwaysQR3355
19:20
AirlineFlight  No
FrontierF93163
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:03
AirlineFlight  No
Hawaiian AirlinesHA6493
21:26
AirlineFlight  No
Alaska AirlinesAS423
Hawaiian AirlinesHA6602
Qatar AirwaysQR4277
VIEW FLIGHTS
Friday
06:31
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6608
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:04
AirlineFlight  No
Hawaiian AirlinesHA6814
10:51
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6667
14:00
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6606
Japan AirlinesJL6388
Qatar AirwaysQR3355
19:28
AirlineFlight  No
FrontierF93163
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:03
AirlineFlight  No
Hawaiian AirlinesHA6493
21:26
AirlineFlight  No
Alaska AirlinesAS423
Hawaiian AirlinesHA6602
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
08:00
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
10:20
AirlineFlight  No
Delta ConnectionDL4031
10:33
AirlineFlight  No
Hawaiian AirlinesHA6608
13:14
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Virgin AtlanticVS5470
15:02
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6607
Japan AirlinesJL6388
Qatar AirwaysQR2105
16:24
AirlineFlight  No
FrontierF93163
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Hawaiian AirlinesHA6606
Qatar AirwaysQR3355
19:55
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Sunday
06:31
AirlineFlight  No
Alaska AirlinesAS1254
07:45
AirlineFlight  No
Delta ConnectionDL4070
09:04
AirlineFlight  No
Hawaiian AirlinesHA6608
Hawaiian AirlinesHA6814
10:51
AirlineFlight  No
Alaska AirlinesAS1097
13:24
AirlineFlight  No
Hawaiian AirlinesHA6667
14:00
AirlineFlight  No
Delta ConnectionDL4031
15:59
AirlineFlight  No
Alaska AirlinesAS1086
16:45
AirlineFlight  No
Korean AirKE3070
KLMKL6284
17:30
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6493
Qatar AirwaysQR3355
18:32
AirlineFlight  No
Hawaiian AirlinesHA6607
Japan AirlinesJL6388
Qatar AirwaysQR2105
19:19
AirlineFlight  No
FrontierF93163
19:55
AirlineFlight  No
Delta ConnectionDL4027
20:03
AirlineFlight  No
Hawaiian AirlinesHA6606
21:26
AirlineFlight  No
Alaska AirlinesAS423
22:45
AirlineFlight  No
Korean AirKE3106
KLMKL6282
Virgin AtlanticVS5376
23:59
AirlineFlight  No
Hawaiian AirlinesHA6602
Qatar AirwaysQR4277
VIEW FLIGHTS

If you are planning to hire a car from Ontario International airport then don’t wait until you arrive. The prices are typically 20% to 30% higher and the availability of vehicles are much lower. You can check out the solutions we have for car hire on our car hire pages which can save you £££’s.

Looking for the best car hire deals?

Find cheap car rentals in Ontario

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 £22.95 ($29 €27.46)
£22.95
$29 | €27.46
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 £45.91 ($58 €54.91)
£45.91
$58 | €54.91
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, Virgin Atlantic.
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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