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Cheap flights from Washington to Toronto from C$ 141

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTO
22 Nov — 29 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Washington to Toronto

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Toronto
Explore the most affordable flight options available from Washington to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 October 2025.

Wed 19/117:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Wed 26/114:45 p.m.YYZ - SEA
Nonstop5h 32mAlaska Airlines
Deal found 21/10C$ 318
Sat 13/123:20 p.m.SEA - YYZ
2 stops11h 38mWestJet
Tue 16/127:45 a.m.YYZ - SEA
1 stop9h 35mWestJet
Deal found 23/10C$ 321
Wed 3/123:15 p.m.SEA - YYZ
2 stops11h 43mWestJet
Tue 9/127:45 a.m.YYZ - SEA
1 stop9h 35mWestJet
Deal found 23/10C$ 328
Mon 17/117:55 a.m.SEA - YYZ
Nonstop4h 40mMultiple Airlines
Tue 25/117:45 a.m.YYZ - SEA
1 stop9h 35mMultiple Airlines
Deal found 21/10C$ 330
Tue 2/127:55 a.m.SEA - YYZ
Nonstop4h 40mMultiple Airlines
Sun 7/127:45 a.m.YYZ - SEA
1 stop9h 35mMultiple Airlines
Deal found 22/10C$ 332
Fri 21/1111:55 a.m.SEA - YYZ
2 stops8h 44mWestJet
Mon 24/117:45 a.m.YYZ - SEA
1 stop9h 35mWestJet
Deal found 23/10C$ 336
Sat 15/117:55 a.m.SEA - YYZ
Nonstop4h 40mMultiple Airlines
Sat 22/1110:15 p.m.YYZ - SEA
2 stops15h 07mMultiple Airlines
Deal found 22/10C$ 337
Wed 3/123:15 p.m.SEA - YYZ
2 stops11h 43mWestJet
Sat 6/1210:15 p.m.YYZ - SEA
2 stops15h 07mWestJet
Deal found 21/10C$ 340
Sun 7/123:10 p.m.SEA - YYZ
2 stops11h 48mWestJet
Sun 14/127:45 a.m.YYZ - SEA
1 stop9h 35mWestJet
Deal found 23/10C$ 342
Sat 6/1210:05 a.m.SEA - YYZ
2 stops9h 36mAir Canada
Sat 13/1212:00 p.m.YYZ - SEA
2 stops13h 06mAir Canada
Deal found 21/10C$ 343
Sun 30/113:10 p.m.SEA - YYZ
2 stops11h 48mWestJet
Fri 5/127:45 a.m.YYZ - SEA
1 stop9h 35mWestJet
Deal found 21/10C$ 344
Sun 7/127:55 a.m.SEA - YYZ
Nonstop4h 40mMultiple Airlines
Sun 14/127:45 a.m.YYZ - SEA
1 stop9h 35mMultiple Airlines
Deal found 23/10C$ 347

Cheap flight deals from Washington to Toronto

Keep the following information in mind while searching for Washington to Toronto flight deals. Data was last updated 23 October 2025.

Round-trip from

C$ 318

One-way from

C$ 141

Popular in

June

Cheapest in

January

Average price

C$ 610

Good round-trip deal

C$ 425 or less

Good one-way deal

C$ 205 or less
Alaska Airlines
  • Alaska Airlines
  • 19/11-26/11
  • Nonstop
  • 10h 12m total
  • Washington to Toronto
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 18/11
  • Nonstop
  • 4h 40m total
  • Washington to Toronto
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Washington to Toronto (YTO).
Search Deals
Price to beat on a one-way flight from Washington to Toronto (YTO).
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 23 October 2025.
Use the filters below to find and compare flights from Washington to Toronto that are best for you.

Fly from

Washington

Fly to

Toronto

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 18/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Tue 25/11

4:45 p.m.-7:17 p.m.

Nonstop5h 32m

C$ 351

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 18/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Wed 19/11

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

C$ 351

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 5/12

11:55 a.m.-11:39 p.m.

2 stops8h 44m

Toronto Pearson Intl

Fri 12/12

2:10 p.m.-7:16 p.m.

1 stop8h 06m

C$ 357

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 19/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Fri 21/11

4:45 p.m.-7:17 p.m.

Nonstop5h 32m

C$ 367

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 10/3

8:00 a.m.-3:35 p.m.

Nonstop4h 35m

Toronto Pearson Intl

Wed 11/3

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

C$ 381

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 14/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Tue 18/11

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

C$ 381

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 16/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Mon 17/11

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

C$ 396

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 10/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Thu 13/11

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

C$ 396

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 6/12

5:50 a.m.-9:35 p.m.

2 stops12h 45m

Toronto Island

Sat 13/12

6:30 p.m.-2:31 p.m.

2 stops23h 01m

C$ 409

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 5/4

3:10 p.m.-5:16 p.m.

1 stop23h 06m

Hamilton

Wed 8/4

6:10 p.m.-2:19 p.m.

1 stop23h 09m

C$ 440

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Toronto

What is the cheapest month to book a flight from State of Washington to Toronto?

Currently, March is the cheapest month in which you can book a flight from State of Washington to Toronto (average of C$ 169). Flying from State of Washington to Toronto in May is currently the most expensive (average of C$ 379). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to YTO?

Find hourly flight availability from Washington to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 October 2025.

It’s typically best to fly out from State of Washington to Toronto in the afternoon. Doing so could potentially save you 37% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost to fly round-trip from State of Washington to Toronto?

Related info for your journey

Find useful and relevant information for your journey from Washington to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Toronto?

    Alaska Airlines, Air Canada, and WestJet can get you from State of Washington to Toronto in just under 4h 40m. Your travel time can differ by up to 18h 26m. There are 3306 km between State of Washington and Toronto. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Toronto one-way?

    C$ 141 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on WestJet and Air Canada, with prices starting from C$ 153 and C$ 179, respectively.

  • What are the most popular routes from State of Washington to Toronto?

    The most popular route from State of Washington to Toronto is Seattle/Tacoma Intl - Toronto Pearson Intl. You may also consider Seattle/Tacoma Intl - Toronto Island or Portland - Toronto Pearson Intl.

  • What are the most reliable airlines from State of Washington to Toronto?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to Toronto on time: Qatar Airways (97%), Alaska Airlines (97%), Air Tahiti Nui (96%).

  • What are the cheapest flights from State of Washington to Toronto?

    The cheapest flight price from State of Washington to Toronto is C$ 140. On average you can expect to pay C$ 675. The most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl), can usually be booked for C$ 321.

  • Can I find deals for flights from Washington to Toronto that include hotel bookings?

    Yes. In addition to deals on Washington to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Toronto.

  • Can I find deals for business class flights from Washington to Toronto?

    Yes. Cheapflights offers flight deals from Washington to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Toronto?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to Toronto (average of C$ 169). Flying from State of Washington to Toronto in May is currently the most expensive (average of C$ 379). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington to Toronto

See prices for flight routes from nearby airports that may be better suited for you.
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Los Angeles to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
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Philadelphia to Pearson Intl flights
Midway to Toronto Island flights
Minneapolis to Pearson Intl flights
George Bush Intcntl to Pearson Intl flights
Sky Harbor Intl to Pearson Intl flights
Raleigh to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Tampa to Pearson Intl flights
Nashville to Pearson Intl flights
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Philadelphia to Pierre Elliott Trudeau Intl flights
Charlotte to Pearson Intl flights
Midway to Pearson Intl flights
Santa Ana to Pearson Intl flights
Austin to Pearson Intl flights
Orlando to Toronto Island flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
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Denver to Pearson Intl flights
O'Hare Intl to Toronto Island flights

Top 4 airlines flying from Washington to Toronto

Discover the top 4 airlines that operate flights from Washington to Toronto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 23 October 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 289AverageC$ 388FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 327AverageC$ 570FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 373AverageC$ 794FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 486AverageC$ 546FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Washington to Toronto?

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Why should you use Cheapflights to find cheap flight tickets from Washington to Toronto?

Millions of users choose and trust Cheapflights to book the best flight deals from Washington to Toronto for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Washington to Toronto with no change fees?

Yes, we can. To see specific flights from Washington to Toronto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington to Toronto become cheaper?

Yes! Start tracking prices for Washington to Toronto flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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