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

We've found the cheapest flights to Ontario

Returns from £165.73

One-way from £91.07

Airliners including Virgin Atlantic, SAS, Volaris, Jet Linx Aviation, Frontier, Qatar Airways, Korean Air, KLM, WestJet, Delta Connection and Alaska 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.

If you are planning a trip to Ontario International Airport (ONT) from Seattle-Tacoma International Airport you can pre-arrange short or long term parking at Seattle-Tacoma International Airport (SEA).

If you had a rental car at Ontario International Airport (ONT) and need to return it, find the nearest fuel station on your route to Ontario International Airport (ONT) and avoid excess fees.

We suggest pre-booking your transport to Seattle-Tacoma International Airport (SEA). The following options are available:

Organise and book your choice of transport at Ontario International Airport (ONT):

Find hotels close to Ontario International Airport (ONT) many hotels offer airport transfers directly from the airport to your hotel.

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

Airliner	Mo	Tu	We	Th	Fr	Sa	Su	First Flight	Last Flight	Flights
Alaska Airlines	0	0	0	0	0	4	4	11:11	20:32	VIEW FLIGHTS
WestJet	0	0	0	0	0	3	1	17:21	17:21	VIEW FLIGHTS
Delta Connection	0	0	0	0	0	2	2	11:17	17:21	VIEW FLIGHTS
Qatar Airways	0	0	0	0	0	2	1	20:32	20:32	VIEW FLIGHTS
Korean Air	0	0	0	0	0	2	1	17:21	17:21	VIEW FLIGHTS
KLM	0	0	0	0	0	2	1	17:21	17:21	VIEW FLIGHTS
Volaris	0	0	0	0	0	1	1	14:45	14:45	VIEW FLIGHTS
Jet Linx Aviation	0	0	0	0	0	1	1	16:30	16:30	VIEW FLIGHTS
Frontier	0	0	0	0	0	1	1	14:45	14:45	VIEW FLIGHTS
Virgin Atlantic	0	0	0	0	0	1	0			VIEW FLIGHTS
SAS	0	0	0	0	0	1	0			VIEW FLIGHTS

The most direct flights are offered by Alaska Airlines but they only offer 1 flight per week. This flight departs 11:11 and goes by the flight number AS1364, AS565, AS571 and AS592

Would you like to book your flight? Bookings can be made direct with Alaska Airlines on their website alaskaair.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

Day

Flight Times

Flights

Saturday

08:33

Airline	Flight No
Alaska Airlines	AS1364

10:25

Airline	Flight No
Alaska Airlines	AS565

11:54

Airline	Flight No
Volaris	Y42359
Frontier	F92276

14:30

Airline	Flight No
Delta Connection	DL4031

17:21

Airline	Flight No
Korean Air	KE3070
WestJet	WS8373
KLM	KL6270

17:51

Airline	Flight No
Alaska Airlines	AS592

19:59

Airline	Flight No
Korean Air	KE3106
SAS	SK3259
WestJet	WS7896
KLM	KL6269
Delta Connection	DL3884
Virgin Atlantic	VS5470

20:32

Airline	Flight No
Qatar Airways	QR3355
Jet Linx Aviation	JL6388

20:33

Airline	Flight No
Alaska Airlines	AS489

22:52

Airline	Flight No
WestJet	WS7933

23:11

Airline	Flight No
Qatar Airways	QR3354

Sunday

11:11

Airline	Flight No
Alaska Airlines	AS1364

11:17

Airline	Flight No
Delta Connection	DL4070

13:09

Airline	Flight No
Alaska Airlines	AS565

14:45

Airline	Flight No
Volaris	Y42359
Frontier	F92276

16:30

Airline	Flight No
Alaska Airlines	AS571
Jet Linx Aviation	JL6388

17:21

Airline	Flight No
Korean Air	KE3070
WestJet	WS8373
KLM	KL6270
Delta Connection	DL4031

20:32

Airline	Flight No
Alaska Airlines	AS592
Qatar Airways	QR3355

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 £91.07 ($122 €106.69)

£91.07

$122 | €106.69

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 £165.73 ($222 €194.15)

£165.73

$222 | €194.15

Check Latest Price

1+ STOP(S)

What is the cheapest flight one way from Seattle SEA to Ontario ONT?

The cheapest flight one way from Seattle SEA to Ontario ONT is £73.90 ($99 €86.58)

£73.90

$99 | €86.58

Check Latest Price

1+ STOP(S)

What is the cheapest return flight from Seattle SEA to Ontario ONT?

The cheapest return flight from Seattle SEA to Ontario ONT is £161.25 ($216 €188.90)

£161.25

$216 | €188.90

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, 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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