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 33% 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.

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 Hamilton, and flying into State of Washington, then you can expect flight times to average 7h 55m and 9h 59m, respectively.

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

WestJet, Air Canada, and United Airlines are the most popular carriers operating 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 August 2025, 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.

$132 Cheap Flights from Ontario to Washington in 2025

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

40 flights are operational weekly from Region of Ontario to State of Washington as of August 2025. The most popular departure day for this route is Fri, with 20% 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 August 2025, there are 5 flights per day flying from Region of Ontario to State of Washington. The most common time of day flights depart is 8:00AM, with 58% of flights taking off at noon.

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Find the cheapest flights from Ontario to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:00 am - 12:59 pmYHM-SEA

9h 59m1 stop

2:05 pm - 12:40 amSEA-YHM

7h 35m1 stop

$200WestJet

Find Deal

Tue, Sep 16 - Tue, Sep 23

6:00 am - 12:59 pmYHM-SEA

9h 59m1 stop

2:05 pm - 12:40 amSEA-YHM

7h 35m1 stop

$204WestJet

Find Deal

Tue, Sep 16 - Tue, Sep 23

12:25 pm - 7:31 pmYTZ-SEA

10h 06m1 stop

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$230Air Canada

Find Deal

Tue, Sep 30 - Tue, Oct 7

10:20 am - 7:31 pmYTZ-SEA

12h 11m2 stops

5:30 am - 8:41 pmSEA-YTZ

12h 11m2 stops

$234Air Canada

Find Deal

Tue, Sep 30 - Tue, Oct 7

4:45 pm - 7:08 pmYYZ-SEA

5h 23mnonstop

7:16 am - 3:00 pmSEA-YYZ

4h 44mnonstop

$243Alaska Airlines

Find Deal

Tue, Sep 16 - Wed, Sep 24

4:45 pm - 7:08 pmYYZ-SEA

5h 23mnonstop

7:16 am - 3:00 pmSEA-YYZ

4h 44mnonstop

$251Alaska Airlines

Find Deal

Thu, Sep 18 - Tue, Sep 23

2:45 pm - 10:30 pmYYZ-PDX

10h 45m1 stop

11:59 pm - 1:42 pmPDX-YYZ

10h 43m1 stop

$292United Airlines

Find Deal

Tue, Sep 30 - Sun, Oct 5

3:00 pm - 9:29 pmYYZ-PDX

9h 29m1 stop

5:00 am - 7:37 pmPDX-YYZ

11h 37m2 stops

$294United Airlines

Find Deal

Sat, Sep 13 - Tue, Sep 23

6:04 am - 12:00 pmYYZ-PDX

8h 56m1 stop

12:45 am - 11:38 amPDX-YYZ

7h 53m1 stop

$319Delta

Find Deal

Wed, Sep 3 - Wed, Oct 1

6:13 pm - 11:52 pmYYZ-PDX

8h 39m2 stops

12:40 am - 11:47 amPDX-YYZ

8h 07m1 stop

$325Delta

Find Deal

Wed, Oct 1 - Tue, Oct 7

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

Sep 30

YTZ12:25 pmToronto Island

10h 06m

1 stop

SEA7:31 pmSeattle/Tacoma Intl

Oct 7

SEA7:15 amSeattle/Tacoma Intl

9h 34m

1 stop

YTZ7:49 pmToronto Island

$230

Find similar

Air Canada

Sep 30

YTZ10:20 amToronto Island

12h 11m

2 stops

SEA7:31 pmSeattle/Tacoma Intl

Oct 7

SEA5:30 amSeattle/Tacoma Intl

12h 11m

2 stops

YTZ8:41 pmToronto Island

$234

Find similar

Air Canada

Sep 30

YTZ12:25 pmToronto Island

10h 06m

1 stop

SEA7:31 pmSeattle/Tacoma Intl

Oct 7

SEA7:15 amSeattle/Tacoma Intl

9h 34m

1 stop

YTZ7:49 pmToronto Island

$238

Find similar

Delta flights from Region of Ontario to State of Washington

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

Delta

Sep 3

YYZ6:04 amToronto Pearson Intl

8h 56m

1 stop

PDX12:00 pmPortland

Oct 1

PDX12:45 amPortland

7h 53m

1 stop

YYZ11:38 amToronto Pearson Intl

$319

Find similar

Delta

Oct 1

YYZ6:13 pmToronto Pearson Intl

8h 39m

2 stops

PDX11:52 pmPortland

Oct 7

PDX12:40 amPortland

8h 07m

1 stop

YYZ11:47 amToronto Pearson Intl

$325

Find similar

Delta

Sep 13

YYZ5:43 pmToronto Pearson Intl

9h 09m

2 stops

PDX11:52 pmPortland

Sep 19

PDX12:45 amPortland

7h 53m

1 stop

YYZ11:38 amToronto Pearson Intl

$333

Find similar

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

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Tue 9/16

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Tue 9/23

2:05 pm-12:40 am

1 stop7h 35m

$200

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Tue 9/16

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Tue 9/23

2:05 pm-12:40 am

1 stop7h 35m

$204

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 9/30

12:25 pm-7:31 pm

1 stop10h 06m

Seattle/Tacoma Intl

Tue 10/7

7:15 am-7:49 pm

1 stop9h 34m

$230

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 9/30

10:20 am-7:31 pm

2 stops12h 11m

Seattle/Tacoma Intl

Tue 10/7

5:30 am-8:41 pm

2 stops12h 11m

$234

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 9/16

4:45 pm-7:08 pm

Nonstop5h 23m

Seattle/Tacoma Intl

Wed 9/24

7:16 am-3:00 pm

Nonstop4h 44m

$243

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 9/18

4:45 pm-7:08 pm

Nonstop5h 23m

Seattle/Tacoma Intl

Tue 9/23

7:16 am-3:00 pm

Nonstop4h 44m

$251

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 9/30

2:45 pm-10:30 pm

1 stop10h 45m

Portland

Sun 10/5

11:59 pm-1:42 pm

1 stop10h 43m

$292

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Sat 9/13

3:00 pm-9:29 pm

1 stop9h 29m

Portland

Tue 9/23

5:00 am-7:37 pm

2 stops11h 37m

$294

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 9/3

6:04 am-12:00 pm

1 stop8h 56m

Portland

Wed 10/1

12:45 am-11:38 am

1 stop7h 53m

$319

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 10/1

6:13 pm-11:52 pm

2 stops8h 39m

Portland

Tue 10/7

12:40 am-11:47 am

1 stop8h 07m

$325

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 February is, on average, the cheapest month to fly to State of Washington from Region of Ontario, with most prices found around $263. If you aren’t able to travel to State of Washington during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $266.

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 Wednesday. Travelers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as $444. When flying out on a Sunday, 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 $647.

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 evening when flights can be purchased for as low as $268. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $543 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 to State of 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 $360 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 $303 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to 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 31% 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	$132
Fastest flight time	5h 19m
Direct flights	Every day
Airports in State of Washington	2 airports

The best one-way flight to State of Washington from Region of Ontario in the past 72 hours is $132. The best round-trip flight deal from Region of Ontario to State of Washington found on momondo in the last 72 hours is $200.

The fastest flight from Region of Ontario to State of Washington takes 5h 19m

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

There are 2 airports near State of Washington: Portland (PDX), Seattle/Tacoma Intl (SEA)

Search flight deals

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 August 2025, 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 Boeing 737 MAX 8, making up 31.69% of the total bookings. Other popular models include Airbus A220-300 with 21.02%, Boeing 737-900 Passenger/BBJ3 (winglets) with 14.18%, and Airbus A320-100/200 with 13.43%.

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 $213	Free Cancellation	Rating 7.2 3,018 reviews	Search WestJet flights
United Airlines	PriceFrom $240	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights
Air Canada	PriceFrom $243	Free Cancellation	Rating 7.1 9,992 reviews	Search Air Canada flights
Alaska Airlines	PriceFrom $243	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $277	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $289	Free Cancellation	Rating 8.0 7,981 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.

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.

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Cheap flights from Ontario to Washington from $132

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 10/20. 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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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Ontario to Washington

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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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

Delta flights from Region of Ontario to State of Washington

Our best Delta 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

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 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?

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 to State of Washington?

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

There are 4 cabin classes available to choose from on Ontario to 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 31% on your flight if you consider stops on a Region of Ontario to State of Washington flight.

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

WestJet, Air Canada, and United Airlines are the most popular carriers operating 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?

As of August 2025, there are 5 flights per day flying from Region of Ontario to State of Washington. The most common time of day flights depart is 8:00AM, with 58% of flights taking off at noon.

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

40 flights are operational weekly from Region of Ontario to State of Washington as of August 2025. The most popular departure day for this route is Fri, with 20% of flights per week taking off on this day.

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 Hamilton, and flying into State of Washington, then you can expect flight times to average 7h 55m and 9h 59m, respectively.

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

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

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

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

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

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

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

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

How can momondo help me find flights 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?

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

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo