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 35% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 5 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?

United Airlines, Delta, and WestJet 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 Hamilton or Ottawa, and flying into State of Washington, then you can expect flight times to average 8h 52m and 9h 31m, 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 October 2026, there are 5 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.

$206 Cheap Flights from Ontario to Washington in 2026/27

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

17 flights are operational weekly from Region of Ontario to State of Washington as of October 2026. The most popular departure day for this route is Mon, with 24% 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 October 2026, there are 2 flights per day flying from Region of Ontario to State of Washington. The most common time of day flights depart is 6:00PM, with 75% 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

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 1:40 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

2:30 pm - 5:45 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 15m2 stops Calgary Edmonton

$313WestJet

Thu, Nov 26 - Thu, Dec 3

7:30 am - 1:40 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

2:30 pm - 5:45 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 15m2 stops Calgary Edmonton

$315WestJet

Wed, Nov 25 - Mon, Nov 30

6:15 am - 4:14 pmYYZ Toronto Pearson Intl-GEG Spokane

12h 59m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:00 pm - 11:59 pmGEG Spokane-YYZ Toronto Pearson Intl

7h 59m1 stop Atlanta Hartsfield-Jackson

$353Delta

Wed, Oct 28 - Sat, Oct 31

6:15 am - 11:50 amYYZ Toronto Pearson Intl-GEG Spokane

8h 35m1 stop Atlanta Hartsfield-Jackson

1:54 pm - 11:15 pmGEG Spokane-YYZ Toronto Pearson Intl

6h 21m1 stop Minneapolis St Paul

$353Delta

Wed, Oct 28 - Sat, Oct 31

10:53 am - 6:41 pmYYZ Toronto Pearson Intl-GEG Spokane

10h 48m2 stops Chicago O'Hare Intl San Francisco

1:53 pm - 10:47 amGEG Spokane-YYZ Toronto Pearson Intl

17h 54m2 stops Denver Intl Chicago O'Hare Intl

$353United Airlines

Wed, Oct 28 - Sat, Oct 31

10:30 am - 9:11 pmYYZ Toronto Pearson Intl-GEG Spokane

13h 41m2 stops Newark Denver Intl

1:49 pm - 9:47 amGEG Spokane-YYZ Toronto Pearson Intl

16h 58m2 stops Denver Intl Chicago O'Hare Intl

$353United Airlines

Thu, Oct 29 - Sun, Nov 1

8:45 am - 2:37 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

8:40 am - 6:59 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

7h 19m1 stop Vancouver Intl

$391Air Canada

Sat, Oct 31 - Tue, Nov 3

8:45 am - 2:37 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

7:05 pm - 6:52 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 47m1 stop Vancouver Intl

$405Air Canada

Fri, Oct 30 - Tue, Nov 3

7:30 am - 1:40 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

8:29 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mnonstop

$408Multiple Airlines

Sun, Dec 13 - Tue, Jan 5

7:30 am - 1:40 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

8:29 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mnonstop

$408Multiple Airlines

Mon, Dec 14 - Tue, Jan 5

Cheap last minute flights

Enter your travel dates to find the best prices.

6:10 pm - 9:40 amYHM Hamilton-SEA Seattle/Tacoma Intl

18h 30m1 stop Calgary

2:30 pm - 2:25 pmSEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

$559WestJet

Tue, Oct 20 - Wed, Dec 9

12:00 pm - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 45m1 stop Calgary

2:30 pm - 10:55 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

17h 25m1 stop Calgary

$561WestJet

Tue, Oct 20 - Wed, Dec 9

6:15 am - 4:16 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

13h 01m1 stop Atlanta Hartsfield-Jackson

7:15 am - 9:56 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 41m2 stops Austin Bergstrom Atlanta Hartsfield-Jackson

$613Delta

Tue, Oct 20 - Wed, Dec 9

12:15 pm - 8:09 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 54m1 stop New York John F Kennedy Intl

10:52 pm - 11:19 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

9h 27m1 stop New York John F Kennedy Intl

$615Delta

Sat, Oct 17 - Mon, Nov 9

9:00 am - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

12h 45m1 stop Calgary

8:19 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 46mnonstop

$622Multiple Airlines

Mon, Oct 19 - Tue, Nov 17

9:00 am - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

12h 45m1 stop Calgary

8:13 am - 9:52 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

10h 39m1 stop Austin Bergstrom

$629Multiple Airlines

Mon, Oct 19 - Tue, Nov 17

5:00 am - 10:05 amYOW Ottawa-SEA Seattle/Tacoma Intl

8h 05m1 stop Vancouver Intl

7:15 pm - 5:58 amSEA Seattle/Tacoma Intl-YOW Ottawa

7h 43m1 stop Vancouver Intl

$647Air Canada

Sat, Oct 17 - Sat, Oct 24

11:40 am - 6:00 amYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

21h 20m2 stops Chicago O'Hare Intl Portland

8:00 am - 3:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mnonstop

$697Alaska Airlines

Tue, Oct 20 - Wed, Oct 21

4:55 pm - 7:26 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 31mnonstop

9:29 pm - 5:24 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

16h 55m2 stops Boise Air Term. Gowen Fld Dallas/Fort Worth

$719Alaska Airlines

Fri, Oct 16 - Fri, Oct 16

5:00 am - 10:05 amYOW Ottawa-SEA Seattle/Tacoma Intl

8h 05m1 stop Vancouver Intl

7:15 pm - 10:14 amSEA Seattle/Tacoma Intl-YOW Ottawa

11h 59m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$730Air Canada

Tue, Oct 20 - Fri, Oct 23

Cheap direct flights

Enter your travel dates to find the best prices.

5:15 pm - 7:56 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mnonstop

8:33 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mnonstop

$487Alaska Airlines

Tue, Dec 1 - Wed, Dec 9

5:15 pm - 7:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 30mnonstop

8:33 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mnonstop

$487Alaska Airlines

Wed, Nov 11 - Wed, Dec 2

5:15 pm - 7:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 30mnonstop

8:19 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 46mnonstop

$487Alaska Airlines

Sat, Nov 14 - Wed, Nov 18

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

$501Air Canada

Sun, Nov 1 - Tue, Nov 10

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

$501Air Canada

Wed, Nov 4 - Sun, Nov 8

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

$506Air Canada

Fri, Nov 13 - Thu, Dec 3

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

8:31 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 34mnonstop

$560Multiple Airlines

Sat, Nov 14 - Sun, Nov 22

6:10 am - 1:25 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 15mnonstop

7:35 pm - 7:30 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 55mnonstop

$644Lufthansa

Sat, Nov 14 - Sun, Nov 22

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

$672United Airlines

Mon, Nov 16 - Fri, Nov 27

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

$778United Airlines

Wed, Dec 9 - Mon, Dec 14

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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

WestJet

Nov 26

YYZ7:30 amToronto Pearson Intl

9h 10m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

Dec 3

SEA2:30 pmSeattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 amToronto Pearson Intl

$313

WestJet

Nov 25

YYZ7:30 amToronto Pearson Intl

9h 10m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

Nov 30

SEA2:30 pmSeattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 amToronto Pearson Intl

$315

WestJet

Nov 25

YYZ7:30 amToronto Pearson Intl

9h 10m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

Dec 2

SEA2:30 pmSeattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 amToronto Pearson Intl

$318

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

Dec 3

YOW7:45 amOttawa

9h 52m

1 stop

SEA2:37 pmSeattle/Tacoma Intl

Dec 8

SEA7:45 amSeattle/Tacoma Intl

8h 00m

1 stop

YOW6:45 pmOttawa

$408

Air Canada

Oct 31

YOW2:00 pmOttawa

9h 59m

1 stop

SEA8:59 pmSeattle/Tacoma Intl

Nov 10

SEA7:45 amSeattle/Tacoma Intl

9h 00m

1 stop

YOW7:45 pmOttawa

$416

Air Canada

Nov 12

YOW7:45 amOttawa

9h 52m

1 stop

SEA2:37 pmSeattle/Tacoma Intl

Nov 22

SEA8:40 amSeattle/Tacoma Intl

13h 16m

1 stop

YOW12:56 amOttawa

$423

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 Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 11/26

7:30 am-1:40 pm

1 stop9h 10m

Seattle/Tacoma Intl

Thu 12/3

2:30 pm-5:45 am

2 stops12h 15m

$313

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 11/25

7:30 am-1:40 pm

1 stop9h 10m

Seattle/Tacoma Intl

Mon 11/30

2:30 pm-5:45 am

2 stops12h 15m

$315

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Wed 10/28

6:15 am-4:14 pm

2 stops12h 59m

Spokane

Sat 10/31

1:00 pm-11:59 pm

1 stop7h 59m

$353

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Wed 10/28

6:15 am-11:50 am

1 stop8h 35m

Spokane

Sat 10/31

1:54 pm-11:15 pm

1 stop6h 21m

$353

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Wed 10/28

10:53 am-6:41 pm

2 stops10h 48m

Spokane

Sat 10/31

1:53 pm-10:47 am

2 stops17h 54m

$353

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Thu 10/29

10:30 am-9:11 pm

2 stops13h 41m

Spokane

Sun 11/1

1:49 pm-9:47 am

2 stops16h 58m

$353

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sat 10/31

8:45 am-2:37 pm

1 stop8h 52m

Seattle/Tacoma Intl

Tue 11/3

8:40 am-6:59 pm

1 stop7h 19m

$391

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Fri 10/30

8:45 am-2:37 pm

1 stop8h 52m

Seattle/Tacoma Intl

Tue 11/3

7:05 pm-6:52 am

1 stop8h 47m

$405

Quickest round-trip

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sun 12/13

7:30 am-1:40 pm

1 stop9h 10m

Seattle/Tacoma Intl

Tue 1/5

8:29 am-4:05 pm

Nonstop4h 36m

$408

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Mon 12/14

7:30 am-1:40 pm

1 stop9h 10m

Seattle/Tacoma Intl

Tue 1/5

8:29 am-4:05 pm

Nonstop4h 36m

$408

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 $255. 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 $282.

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 $489. 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 $804.

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 $468. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $694 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 $387 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 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 30% 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	$206
Fastest flight time	5h 23m
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 $206. The best round-trip flight deal from Region of Ontario to State of Washington found on momondo in the last 72 hours is $313.

The fastest flight from Region of Ontario to State of Washington takes 5h 23m

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 October 2026, there are 5 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 9, making up 32.82% of the total bookings. Other popular models include Airbus A220-300 with 20.25%, Boeing 777-300ER with 9.51%, and Boeing 737 MAX 8 with 7.98%.

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
Alaska Airlines	PriceFrom $202	Free Cancellation	Rating 7.9 13,065 reviews	Search Alaska Airlines flights
Delta	PriceFrom $209	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
Air Canada	PriceFrom $213	Free Cancellation	Rating 7.1 11,770 reviews	Search Air Canada flights
WestJet	PriceFrom $213	Free Cancellation	Rating 7.2 3,446 reviews	Search WestJet flights
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 10,362 reviews	Search United Airlines 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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Popular cities in Washington

Flights to New Yorkfrom $80

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Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $46

Flights to Fort Lauderdalefrom $58

Flights to Bostonfrom $90

Flights to Atlantafrom $52

Flights to Dallasfrom $48

Cheap flights from Ontario to Washington from $206

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 11/12. 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

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

Popular cities in Washington

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

Region of Ontario flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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