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Cheap flights from Toronto to Seattle from C$ 216

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SEA
23 Dec — 30 Dec1
1 adult

The best prices from Toronto to Seattle/Tacoma Intl are usually found in November or October, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Toronto to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

C$ 363

One-way from

C$ 216

Popular in

March

Cheapest in

November

Average price

C$ 651
United Airlines
  • United Airlines
  • 15/2-25/2
  • 1 total stop
  • 12h 25m total
  • Toronto to Seattle
Search Deals
Air Canada
  • Air Canada
  • 14/1
  • 1 total stop
  • 9h 30m total
  • Toronto to Seattle
Search Deals
High demand for flights, 10% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
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Find flight deals from Toronto to Seattle

Cheapest flights from Toronto to Seattle
Explore the most affordable flight options available from Toronto to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2024.

Tue 31/126:30 a.m.YYZ - SEA
2 stops14h 31mMultiple Airlines
Wed 8/12:16 p.m.SEA - YYZ
1 stop13h 30mMultiple Airlines
Deal found 17/12C$ 608
Sun 29/1210:40 p.m.YYZ - SEA
1 stop12h 25mWestJet
Thu 9/13:15 p.m.SEA - YYZ
2 stops11h 45mWestJet
Deal found 17/12C$ 627
Tue 24/126:30 a.m.YYZ - SEA
1 stop11h 55mUnited Airlines
Tue 21/15:25 p.m.SEA - YYZ
1 stop19h 01mUnited Airlines
Deal found 17/12C$ 710
Fri 27/127:15 a.m.YYZ - SEA
1 stop8h 30mDelta
Wed 8/16:00 a.m.SEA - YYZ
1 stop7h 12mDelta
Deal found 17/12C$ 723
Mon 23/125:14 p.m.YYZ - SEA
1 stop10h 43mAmerican Airlines
Tue 21/110:18 p.m.SEA - YYZ
1 stop17h 08mAmerican Airlines
Deal found 17/12C$ 728
Tue 24/124:22 p.m.YYZ - SEA
Nonstop5h 20mAlaska Airlines
Sat 1/27:27 a.m.SEA - YYZ
Nonstop4h 38mAlaska Airlines
Deal found 17/12C$ 761
Tue 24/126:05 p.m.YHM - SEA
2 stops25h 55mWestJet
Tue 21/13:15 p.m.SEA - YHM
1 stop22h 58mWestJet
Deal found 17/12C$ 796
Wed 18/128:45 a.m.YYZ - SEA
1 stop8h 40mAir Canada
Sat 18/16:05 a.m.SEA - YYZ
Nonstop4h 45mAir Canada
Deal found 17/12C$ 833
Tue 24/126:30 a.m.YKF - SEA
1 stop10h 51mWestJet
Wed 1/13:15 p.m.SEA - YKF
1 stop7h 01mWestJet
Deal found 17/12C$ 858
Mon 23/127:00 a.m.YTZ - SEA
3 stops30h 48mMultiple Airlines
Thu 2/19:21 p.m.SEA - YTZ
2 stops18h 32mMultiple Airlines
Deal found 17/12C$ 926
Mon 23/121:05 p.m.YKF - SEA
3 stops31h 24mMultiple Airlines
Thu 2/13:15 p.m.SEA - YKF
1 stop12h 00mMultiple Airlines
Deal found 17/12C$ 1,310
Mon 16/128:25 p.m.YTZ - SEA
2 stops25h 00mAir Canada
Mon 23/125:45 a.m.SEA - YTZ
2 stops11h 05mAir Canada
Deal found 16/12C$ 2,305

Find flights from Toronto to Seattle within your budget

Customize your flight search to find flights from Toronto to Seattle 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 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 15/2

7:05 p.m.-9:30 p.m.

Nonstop5h 25m

Seattle/Tacoma Intl

Tue 25/2

5:02 a.m.-3:02 p.m.

1 stop7h 00m

C$ 363

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 18/1

8:00 a.m.-2:25 p.m.

1 stop9h 25m

Seattle/Tacoma Intl

Tue 21/1

3:05 p.m.-12:57 a.m.

1 stop6h 52m

C$ 364

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 15/1

8:00 p.m.-9:40 a.m.

1 stop16h 40m

Seattle/Tacoma Intl

Wed 22/1

7:10 a.m.-11:35 p.m.

2 stops13h 25m

C$ 366

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sun 16/2

1:20 p.m.-11:00 p.m.

1 stop12h 40m

Seattle/Tacoma Intl

Mon 24/2

11:05 p.m.-11:56 a.m.

1 stop9h 51m

C$ 370

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sun 16/2

4:10 p.m.-6:34 p.m.

Nonstop5h 24m

Seattle/Tacoma Intl

Thu 27/2

7:18 a.m.-2:55 p.m.

Nonstop4h 37m

C$ 376

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 11/2

8:25 p.m.-2:30 p.m.

2 stops21h 05m

Seattle/Tacoma Intl

Tue 18/2

5:45 a.m.-9:50 p.m.

2 stops13h 05m

C$ 417

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 16/1

6:30 a.m.-2:21 p.m.

1 stop10h 51m

Seattle/Tacoma Intl

Sun 19/1

7:10 a.m.-6:15 a.m.

2 stops20h 05m

C$ 437

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 23/1

11:46 a.m.-7:00 p.m.

1 stop10h 14m

Seattle/Tacoma Intl

Sun 26/1

12:45 a.m.-4:15 p.m.

1 stop12h 30m

C$ 457

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 6/2

7:55 a.m.-2:21 p.m.

1 stop9h 26m

Seattle/Tacoma Intl

Sun 9/2

3:15 p.m.-6:03 p.m.

3 stops23h 48m

C$ 471

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 6/2

6:30 a.m.-2:21 p.m.

1 stop10h 51m

Seattle/Tacoma Intl

Sun 9/2

3:15 p.m.-1:16 a.m.

1 stop7h 01m

C$ 483

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 26 results
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Best time to book a flight from Toronto to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Toronto 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.

Travel insights for flights from Toronto to Seattle

Get recent, data-driven insights about flights from Toronto to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Toronto to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Seattle. Price data was last updated on 13 December 2024.

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Toronto to Seattle?

Currently, August is the cheapest month in which you can book a flight from Toronto to Seattle (average of C$ 270). Flying from Toronto to Seattle in March is currently the most expensive (average of C$ 437). 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 YTO to SEA?

Find hourly flight availability from Toronto to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2024.

A simple way to save on the total cost of your ticket is to fly from Toronto to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Toronto to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Seattle. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Toronto to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 18 December 2024.
Get a feel of what it's like to fly with Air Canada, United Airlines and Delta from Toronto to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.2

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Alaska Airlines
8.0
Very good
9,554 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.2

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.2

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Austrian Airlines
7.6
Good
787 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.2

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

United Airlines
7.4
Good
9,055 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.2

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.2

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Toronto?

    For a flight from Toronto to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 1 inbound flight from Toronto per day. 6 airlines have flights to Seattle/Tacoma Intl from Toronto on a regular basis.

  • What are the cheapest airlines flying from Toronto to Seattle round-trip?

    According to our current data, United Airlines (C$ 363), Air Canada (C$ 364), and Delta (C$ 370) offers the cheapest pricing from Toronto to Seattle. These flights start at 43% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Toronto to Seattle one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 216. Users have also found prices from C$ 227 and C$ 233 on Delta and United Airlines, respectively.

  • What are the most popular routes from Toronto to Seattle?

    While some choose either Hamilton - Seattle/Tacoma Intl or Toronto Region of Waterloo Intl - Seattle/Tacoma Intl, Toronto Pearson Intl - Seattle/Tacoma Intl is the most popular route from Toronto to Seattle.

  • What are the most reliable airlines from Toronto to Seattle?

    The top 3 most reliable airlines when flying from Toronto to Seattle are Qatar Airways (100%), Hawaiian Airlines (89%) and Alaska Airlines (88%).

  • What are the cheapest flights from Toronto to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 222. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 363 on average our data indicates C$ 1,628 when flying from Toronto to Seattle.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Toronto to Seattle 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 Toronto to Seattle?

    Currently, August is the cheapest month in which you can book a flight from Toronto to Seattle (average of C$ 270). Flying from Toronto to Seattle in March is currently the most expensive (average of C$ 437). 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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Fly from Toronto to Seattle on these airlines

Choose from the following airlines for your flight from Toronto to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2024.
Air Canada flights from Toronto to Seattle/Tacoma Intl
WestJet flights from Toronto to Seattle/Tacoma Intl
United Airlines flights from Toronto to Seattle/Tacoma Intl

Top 6 airlines flying from Toronto to Seattle

Discover the top 6 airlines that operate flights from Toronto to Seattle. 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 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 305AverageC$ 555FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 362AverageC$ 594FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 403AverageC$ 724FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 407AverageC$ 711FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 419AverageC$ 642FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 557AverageC$ 728FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Toronto to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Toronto to Seattle 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 Toronto to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Toronto to Seattle flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Toronto to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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