What airlines fly to State of Washington?

Air Canada, Alaska Airlines and WestJet are the top three most popular airlines that fly to State of Washington from Region of Ontario according to our data. Air Canada is the first choice among our users, with 39% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 6 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Washington?

WestJet, United Airlines, and Delta are the most popular carriers operating from Ontario to Washington

How long is the flight from Region of Ontario to State of Washington?

If you’re flying from a popular airport in Region of Ontario, such as Toronto or Ottawa, and flying into State of Washington, then you can expect flight times to average 10h 18m and 11h 11m, respectively.

When did momondo last update prices for flights from Ontario to Washington?

Prices for flights from Ontario to Washington were last updated today.

How many operators does momondo search for flights from Ontario to Washington?

As of June 2026, there are 6 operators available to choose from for flights from Ontario to Washington.

How old do you have to be to fly from Ontario to Washington?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$168 Cheap Flights from Ontario to Washington in 2026

Q: How many flights depart from Region of Ontario to State of Washington on average per week?

22 flights are operational weekly from Region of Ontario to State of Washington as of June 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.

Q: How many flights depart from Region of Ontario to State of Washington on average per day?

As of June 2026, there are 3 flights per day flying from Region of Ontario to State of Washington. The most common time of day flights depart is 6:00PM, with 85% of flights taking off in the evening.

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Find the cheapest flights from Ontario to Washington

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:00 pm - 9:00 pm

YYZ

SEA

12h 00m

2 stops

10:30 am - 10:45 pm

SEA

YYZ

9h 15m

1 stop

$278WestJet

Fri, Jun 19 - Tue, Jun 23

12:00 pm - 6:45 pm

YYZ

SEA

9h 45m

2 stops

7:35 pm - 6:55 am

SEA

YYZ

8h 20m

1 stop

$281WestJet

Thu, Jun 18 - Mon, Jun 22

11:40 am - 9:30 pm

YYZ

GEG

12h 50m

1 stop

12:31 pm - 11:57 pm

GEG

YYZ

8h 26m

1 stop

$287Delta

Thu, Aug 6 - Wed, Aug 12

9:00 pm - 9:34 am

YYZ

PDX

15h 34m

1 stop

10:40 pm - 9:54 am

PDX

YYZ

8h 14m

1 stop

$287United Airlines

Wed, Jul 15 - Fri, Jul 17

4:10 pm - 11:09 pm

YYZ

GEG

9h 59m

2 stops

5:30 am - 11:10 pm

GEG

YYZ

14h 40m

2 stops

$292Delta

Tue, Aug 18 - Thu, Aug 27

9:00 pm - 9:34 am

YYZ

PDX

15h 34m

1 stop

5:00 am - 9:32 pm

PDX

YYZ

13h 32m

1 stop

$292United Airlines

Tue, Jul 28 - Tue, Aug 11

7:45 am - 2:22 pm

YYZ

SEA

9h 37m

2 stops

5:45 am - 7:22 pm

SEA

YYZ

10h 37m

2 stops

$299Air Canada

Fri, Jun 19 - Tue, Jun 23

12:15 pm - 6:53 pm

YTZ

PDX

9h 38m

1 stop

11:02 pm - 10:06 am

PDX

YTZ

8h 04m

1 stop

$322Air Canada

Tue, Aug 25 - Tue, Sep 1

6:55 pm - 1:50 pm

YHM

PDX

21h 55m

1 stop

2:30 pm - 5:15 pm

PDX

YHM

23h 45m

1 stop

$517Multiple Airlines

Thu, Aug 27 - Sun, Aug 30

6:15 am - 1:50 pm

YHM

PDX

10h 35m

2 stops

2:30 pm - 5:15 pm

PDX

YHM

23h 45m

1 stop

$519Multiple Airlines

Thu, Aug 27 - Sun, Aug 30

WestJet flights from Region of Ontario to State of Washington

Our best WestJet deals on Region of Ontario to State of Washington flight tickets

WestJet

Jun 19

YYZ12:00 pmToronto Pearson Intl

12h 00m

2 stops

SEA9:00 pmSeattle/Tacoma Intl

Jun 23

SEA10:30 amSeattle/Tacoma Intl

9h 15m

1 stop

YYZ10:45 pmToronto Pearson Intl

$278

WestJet

Jun 18

YYZ12:00 pmToronto Pearson Intl

9h 45m

2 stops

SEA6:45 pmSeattle/Tacoma Intl

Jun 22

SEA7:35 pmSeattle/Tacoma Intl

8h 20m

1 stop

YYZ6:55 amToronto Pearson Intl

$281

WestJet

Jun 19

YYZ12:00 pmToronto Pearson Intl

12h 00m

2 stops

SEA9:00 pmSeattle/Tacoma Intl

Jun 24

SEA10:30 amSeattle/Tacoma Intl

7h 45m

1 stop

YYZ9:15 pmToronto Pearson Intl

$284

Air Canada flights from Region of Ontario to State of Washington

Our best Air Canada deals on Region of Ontario to State of Washington flight tickets

Air Canada

Jun 19

YYZ7:45 amToronto Pearson Intl

9h 37m

2 stops

SEA2:22 pmSeattle/Tacoma Intl

Jun 23

SEA5:45 amSeattle/Tacoma Intl

10h 37m

2 stops

YYZ7:22 pmToronto Pearson Intl

$299

Air Canada

Aug 25

YTZ12:15 pmToronto Island

9h 38m

1 stop

PDX6:53 pmPortland

Sep 1

PDX11:02 pmPortland

8h 04m

1 stop

YTZ10:06 amToronto Island

$322

Air Canada

Jul 4

YTZ12:15 pmToronto Island

9h 35m

1 stop

PDX6:50 pmPortland

Jul 11

PDX10:40 pmPortland

8h 26m

1 stop

YTZ10:06 amToronto Island

$323

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 6/19

12:00 pm-9:00 pm

2 stops12h 00m

Seattle/Tacoma Intl

Tue 6/23

10:30 am-10:45 pm

1 stop9h 15m

$278

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 6/18

12:00 pm-6:45 pm

2 stops9h 45m

Seattle/Tacoma Intl

Mon 6/22

7:35 pm-6:55 am

1 stop8h 20m

$281

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Thu 8/6

11:40 am-9:30 pm

1 stop12h 50m

Spokane

Wed 8/12

12:31 pm-11:57 pm

1 stop8h 26m

$287

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 7/15

9:00 pm-9:34 am

1 stop15h 34m

Portland

Fri 7/17

10:40 pm-9:54 am

1 stop8h 14m

$287

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 8/18

4:10 pm-11:09 pm

2 stops9h 59m

Spokane

Thu 8/27

5:30 am-11:10 pm

2 stops14h 40m

$292

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 7/28

9:00 pm-9:34 am

1 stop15h 34m

Portland

Tue 8/11

5:00 am-9:32 pm

1 stop13h 32m

$292

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 6/19

7:45 am-2:22 pm

2 stops9h 37m

Seattle/Tacoma Intl

Tue 6/23

5:45 am-7:22 pm

2 stops10h 37m

$299

Quickest round-trip

TorontoPortland

YTZ - PDX

YTZPDX

Toronto Island

Tue 8/25

12:15 pm-6:53 pm

1 stop9h 38m

Portland

Tue 9/1

11:02 pm-10:06 am

1 stop8h 04m

$322

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Thu 8/27

6:55 pm-1:50 pm

1 stop21h 55m

Portland

Sun 8/30

2:30 pm-5:15 pm

1 stop23h 45m

$517

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Thu 8/27

6:15 am-1:50 pm

2 stops10h 35m

Portland

Sun 8/30

2:30 pm-5:15 pm

1 stop23h 45m

$519

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to State of Washington

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

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Region of Ontario, with most prices found around $63. If you aren’t able to travel to State of Washington during the month of January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $87.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Region of Ontario to State of Washington is on a Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $418. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to State of Washington for around $673.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the afternoon when flights can be purchased for as low as $445. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $620 on average. Flights to State of Washington from Region of Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Ontario to Washington flight route?

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

How far in advance should I book a flight from Ontario to Washington?

You are more likely to see cheaper flights to State of Washington from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $344 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Region of Ontario for as low as $276 on momondo.

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

There are 4 cabin classes available to choose from on Region of Ontario to State of Washington 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 State of Washington flights?

You could potentially save up to 14% on your flight if you consider stops on a Region of Ontario to State of Washington flight.

Cheap Region of Ontario to State of Washington flight deals and tips

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

Best Price Found	$295
Fastest flight time	5h 18m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Region of Ontario in the past 72 hours is $295. The best round-trip flight deal from Region of Ontario to State of Washington found on momondo in the last 72 hours is $517.

The fastest flight from Region of Ontario to State of Washington takes 5h 18m

Direct flights go from Region of Ontario to State of Washington every day.

There are 96 airports in State of Washington. From Region of Ontario there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Ontario to Washington

When did momondo last update prices for flights from Ontario to Washington?
Prices for flights from Ontario to Washington were last updated today.
How many operators does momondo search for flights from Ontario to Washington?
As of June 2026, there are 6 operators available to choose from for flights from Ontario to Washington.
How old do you have to be to fly from Ontario to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Region of Ontario to State of Washington?
Based on momondo bookings for flights between Region of Ontario and State of Washington, the leading plane model is Airbus A220-300, making up 63.78% of the total bookings. Other popular models include Boeing 777-300ER with 5.48%, De Havilland (Bombardier) DHC-8-400 Dash 8Q with 4.42%, and Boeing 737-900 Passenger/BBJ3 (winglets) with 3.71%.

Best airlines flying from Region of Ontario to State of Washington

Compare and see reviews for airlines that fly from Region of Ontario to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $193	Free Cancellation	Rating 7.2 3,350 reviews	Search WestJet flights
Alaska Airlines	PriceFrom $202	Free Cancellation	Rating 7.9 12,442 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $213	Free Cancellation	Rating 7.1 11,107 reviews	Search Air Canada flights
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 9,768 reviews	Search United Airlines flights
American Airlines	PriceFrom $277	Free Cancellation	Rating 7.1 11,642 reviews	Search American Airlines flights
Delta	PriceFrom $278	Free Cancellation	Rating 7.9 8,402 reviews	Search Delta flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Washington for you.

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

Yes. All flights to Washington from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Washington.

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

Price alerts on flights to Washington from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Ontario to Washington from $168

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 Washington departing on 6/19. 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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WestJet flights from Region of Ontario to State of Washington

Our best WestJet deals on Region of Ontario to State of Washington flight tickets

Air Canada flights from Region of Ontario to State of Washington

Our best Air Canada deals on Region of Ontario to State of Washington flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Washington that are best for you.

See travel insights to Washington from

How to get the cheapest flight ticket from Region of Ontario to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest Ontario to Washington flight route?

How far in advance should I book a flight from Ontario to Washington?

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

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

What is the cheapest airline that flies from Ontario to Washington?

What airlines fly to State of Washington?

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

How many flights depart from Region of Ontario to State of Washington on average per week?

How long is the flight from Region of Ontario to State of Washington?

Cheap Region of Ontario to State of Washington flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Frequently asked questions about flying from Ontario to Washington

Best airlines flying from Region of Ontario to State of Washington

Compare and see reviews for airlines that fly from Region of Ontario to State of Washington with momondo

Why use momondo?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

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