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Cheap flights from Ontario to Seattle from $150

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Seattle departing on 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Seattle.

Cheap last minute flights

Planning a quick getaway from Ontario to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to Seattle

Find recent round-trip train or bus tickets from Ontario to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
4:20 pm - 6:43 pmYYZ-SEA
5h 23mnonstop
7:27 am - 3:05 pmSEA-YYZ
4h 38mnonstop
$248Alaska Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
8:00 am - 2:30 pmYYZ-SEA
9h 30m1 stop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$253Air Canada
Find Deal
Wed, Jan 15 - Fri, Jan 24
7:45 pm - 10:10 pmYYZ-SEA
5h 25mnonstop
11:51 pm - 1:42 pmSEA-YYZ
10h 51m1 stop
$257United Airlines
Find Deal
Thu, Dec 12 - Mon, Jan 6
8:00 am - 2:30 pmYYZ-SEA
9h 30m1 stop
3:05 pm - 12:57 amSEA-YYZ
6h 52m1 stop
$258Air Canada
Find Deal
Wed, Jan 15 - Tue, Jan 21
4:20 pm - 6:39 pmYYZ-SEA
5h 19mnonstop
7:27 am - 3:05 pmSEA-YYZ
4h 38mnonstop
$259Alaska Airlines
Find Deal
Fri, Dec 13 - Fri, Jan 10
5:15 pm - 10:55 pmYYZ-SEA
8h 40m1 stop
11:05 pm - 9:20 amSEA-YYZ
7h 15m1 stop
$262Delta
Find Deal
Sun, Jan 19 - Tue, Jan 21
10:00 am - 8:31 pmYYZ-SEA
13h 31m1 stop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$263United Airlines
Find Deal
Sun, Jan 19 - Wed, Jan 22
6:00 am - 10:45 amYYZ-SEA
7h 45m1 stop
11:05 pm - 9:20 amSEA-YYZ
7h 15m1 stop
$266Delta
Find Deal
Thu, Jan 9 - Sun, Jan 12
7:12 pm - 12:41 pmYYZ-SEA
20h 29m1 stop
5:22 am - 4:15 pmSEA-YYZ
7h 53m1 stop
$277American Airlines
Find Deal
Thu, Jan 9 - Thu, Jan 16
4:05 pm - 10:21 pmYYZ-SEA
9h 16m1 stop
10:56 pm - 10:19 amSEA-YYZ
8h 23m1 stop
$284American Airlines
Find Deal
Wed, Dec 11 - Tue, Dec 31
8:00 pm - 8:57 amYYZ-SEA
15h 57m1 stop
Wed, Dec 11
8:00 pm - 8:57 amYYZ-SEA
15h 57m1 stop
Wed, Dec 11
8:00 am - 2:30 pmYYZ-SEA
9h 30m1 stop
$153Air Canada
Find Deal
Wed, Jan 8
7:55 am - 2:21 pmYYZ-SEA
9h 26m1 stop
$154WestJet
Find Deal
Mon, Jan 27
7:55 am - 2:21 pmYYZ-SEA
9h 26m1 stop
$155WestJet
Find Deal
Wed, Mar 5
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
$159Air Canada
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Thu, Jan 30
5:04 pm - 9:55 pmYYZ-SEA
7h 51m1 stop
$160Delta
Find Deal
Fri, Dec 13
8:05 am - 9:09 pmYYZ-SEA
16h 04m1 stop
$163United Airlines
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Sat, Dec 14
11:00 am - 9:20 pmYYZ-SEA
13h 20m3 stops
$164United Airlines
Find Deal
Thu, Jan 30
5:55 pm - 10:25 pmYYZ-SEA
7h 30m1 stop
$252Delta
Find Deal
Tue, Apr 15
7:40 am - 2:21 pmYYZ-SEA
9h 41m1 stop
3:15 pm - 6:00 amSEA-YYZ
11h 45m2 stops
$410WestJet
Find Deal
Wed, Nov 20 - Wed, Dec 11
7:40 am - 2:21 pmYYZ-SEA
9h 41m1 stop
3:15 pm - 6:19 amSEA-YYZ
12h 04m1 stop
$474WestJet
Find Deal
Wed, Nov 20 - Wed, Dec 11
8:00 pm - 8:08 pmYYZ-SEA
27h 08m2 stops
5:28 pm - 9:47 pmSEA-YYZ
25h 19m1 stop
Sat, Nov 23 - Mon, Nov 25
7:40 am - 2:21 pmYYZ-SEA
9h 41m1 stop
7:26 am - 3:07 pmSEA-YYZ
4h 41mnonstop
Wed, Nov 20 - Mon, Dec 30
4:20 pm - 6:40 pmYYZ-SEA
5h 20mnonstop
7:22 am - 2:55 pmSEA-YYZ
4h 33mnonstop
$578Alaska Airlines
Find Deal
Wed, Nov 20 - Wed, Dec 11
2:55 pm - 9:00 pmYYZ-SEA
9h 05m1 stop
7:45 pm - 6:15 amSEA-YYZ
7h 30m1 stop
$593Delta
Find Deal
Wed, Nov 20 - Mon, Dec 30
6:30 am - 12:46 pmYYZ-SEA
9h 16m1 stop
7:45 pm - 6:15 amSEA-YYZ
7h 30m1 stop
$600Delta
Find Deal
Tue, Nov 19 - Mon, Dec 30
7:15 pm - 9:40 pmYYZ-SEA
5h 25mnonstop
7:15 pm - 6:52 amSEA-YYZ
8h 37m1 stop
$604Air Canada
Find Deal
Tue, Nov 19 - Mon, Dec 30
8:30 am - 2:25 pmYYZ-SEA
8h 55m1 stop
7:15 pm - 6:32 amSEA-YYZ
8h 17m1 stop
$609Air Canada
Find Deal
Sat, Nov 23 - Mon, Dec 30
6:14 am - 3:16 pmYYZ-SEA
12h 02m1 stop
7:22 am - 2:55 pmSEA-YYZ
4h 33mnonstop
$674Alaska Airlines
Find Deal
Wed, Nov 20 - Wed, Dec 11
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$238Air Canada
Find Deal
Fri, Jan 17 - Mon, Jan 20
4:20 pm - 6:43 pmYYZ-SEA
5h 23mnonstop
7:27 am - 3:05 pmSEA-YYZ
4h 38mnonstop
$248Alaska Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
4:20 pm - 6:39 pmYYZ-SEA
5h 19mnonstop
7:27 am - 3:05 pmSEA-YYZ
4h 38mnonstop
$259Alaska Airlines
Find Deal
Fri, Dec 13 - Thu, Jan 9
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$264Air Canada
Find Deal
Thu, Jan 9 - Thu, Jan 16
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$265Air Canada
Find Deal
Thu, Jan 9 - Thu, Jan 16
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$266Air Canada
Find Deal
Thu, Jan 9 - Thu, Jan 16
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$269Air Canada
Find Deal
Fri, Mar 7 - Tue, Mar 11
4:20 pm - 6:39 pmYYZ-SEA
5h 19mnonstop
7:26 am - 3:07 pmSEA-YYZ
4h 41mnonstop
$271Alaska Airlines
Find Deal
Wed, Dec 11 - Tue, Dec 31
7:15 pm - 9:40 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$598United Airlines
Find Deal
Tue, Dec 17 - Tue, Dec 24
7:15 pm - 9:40 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$618United Airlines
Find Deal
Mon, Dec 16 - Mon, Dec 23

Alaska Airlines flights from Region of Ontario to Seattle

Our best Alaska Airlines deals on Region of Ontario to Seattle flight tickets
Alaska Airlines
Jan 17
YYZ4:20 pmToronto Pearson Intl
5h 23m
SEA6:43 pmSeattle/Tacoma Intl
Jan 20
SEA7:27 amSeattle/Tacoma Intl
4h 38m
YYZ3:05 pmToronto Pearson Intl
Alaska Airlines
Dec 13
YYZ4:20 pmToronto Pearson Intl
5h 19m
SEA6:39 pmSeattle/Tacoma Intl
Jan 10
SEA7:27 amSeattle/Tacoma Intl
4h 38m
YYZ3:05 pmToronto Pearson Intl
Alaska Airlines
Dec 11
YYZ4:20 pmToronto Pearson Intl
5h 19m
SEA6:39 pmSeattle/Tacoma Intl
Dec 31
SEA7:26 amSeattle/Tacoma Intl
4h 41m
YYZ3:07 pmToronto Pearson Intl

WestJet flights from Region of Ontario to Seattle

Our best WestJet deals on Region of Ontario to Seattle flight tickets
WestJet
Dec 17
YYZ10:05 pmToronto Pearson Intl
19h 16m
2 stops
SEA2:21 pmSeattle/Tacoma Intl
Dec 24
SEA3:15 pmSeattle/Tacoma Intl
28h 58m
1 stop
YYZ11:13 pmToronto Pearson Intl
WestJet
Jan 9
YYZ5:00 pmToronto Pearson Intl
10h 50m
1 stop
SEA12:50 amSeattle/Tacoma Intl
Jan 16
SEA3:15 pmSeattle/Tacoma Intl
11h 45m
2 stops
YYZ6:00 amToronto Pearson Intl
WestJet
Dec 17
YYZ10:05 pmToronto Pearson Intl
19h 16m
2 stops
SEA2:21 pmSeattle/Tacoma Intl
Dec 24
SEA3:15 pmSeattle/Tacoma Intl
18h 40m
2 stops
YYZ12:55 pmToronto Pearson Intl

How to get the cheapest flight ticket from Region of Ontario to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies to Seattle from Region of Ontario?

Alaska Airlines. Alaska Airlines, Air Canada, and WestJet are the most popular carriers operating from Region of Ontario to Seattle

What is the cheapest Region of Ontario to Seattle flight route?

Toronto Pearson Intl - Seattle/Tacoma Intl. Fly from Toronto Pearson Intl to Seattle/Tacoma Intl for the best Region of Ontario - Seattle flight prices

How many flights depart from Region of Ontario to Seattle on average per day?

As of November 2024, 2 flights take off from Region of Ontario and land in Seattle each day. The most common flight departure time for this route is 7:00PM, with 54% of daily flights taking off in the evening.

What cabin class options are available on Region of Ontario to Seattle flights?

There are 2 cabin classes available to choose from on Region of Ontario to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Seattle flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to Seattle.

Cheap Region of Ontario to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Seattle

Best Price Found

$150

Fastest flight time

5h 19m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Region of Ontario in the past 72 hours is $150. The best round-trip flight deal from Region of Ontario to Seattle found on momondo in the last 72 hours is $248.
The fastest flight from Region of Ontario to Seattle takes 5h 19m
Direct flights go from Region of Ontario to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • When did momondo last update prices for flights from Ontario to Seattle/Tacoma Intl Airport?

    Prices for flights from Ontario to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Ontario to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Ontario to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Region of Ontario to Seattle?


Best airlines flying from Region of Ontario to Seattle

Compare and see reviews for airlines that fly from Region of Ontario to Seattle with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $163Free CancellationRating
7.3
2,808 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $248Free CancellationRating
8.0
9,451 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,168 reviews
Search United Airlines flights
DeltaPriceFrom $292Free CancellationRating
8.0
8,766 reviews
Search Delta flights
Air CanadaPriceFrom $301Free CancellationRating
7.0
8,230 reviews
Search Air Canada flights
American AirlinesPriceFrom $402Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Seattle?

Finding the right flight to Seattle from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Ontario to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Seattle?

Once you have performed a search for Ontario to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Ontario and alert you when they change.


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