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WestJet flights from Toronto to Seattle (YTO - SEA)

YTO — SEA
4 May — 11 May1
1 adult

Cheapflights users flying from Toronto to Seattle on WestJet typically fly into Seattle/Tacoma Intl and depart from Toronto Pearson Intl. Select your dates above for pricing.

WestJet flights from Toronto to Seattle in 2025

Find detailed information about WestJet flights from Toronto to Seattle. Explore the options provided by WestJet to plan your journey from Toronto to Seattle. Data last updated 29 April 2025.

One-way from

C$ 164

Round-trip from

C$ 267

Popular in

July

Cheapest in

February

Average price (all airlines)

C$ 549
WestJet
  • WestJet
  • 1/6
  • 1 total stop
  • 9h 58m total
  • Toronto to Seattle
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WestJet
  • WestJet
  • 18/5-30/5
  • 2 total stops
  • 17h 49m total
  • Toronto to Seattle
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Highest demand for flights from Toronto to Seattle/Tacoma Intl; 10% potential price increase.
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Best time to find cheap flights from Toronto to Seattle/Tacoma Intl; 1% potential price drop.
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Average price for all Toronto to Seattle/Tacoma Intl flights (one-way and round-trip).
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  • Can I get a flight from Toronto to Seattle on WestJet for under C$ 400?

    Cheapflights users have found 3 WestJet flights for under C$ 400 on the YTO-SEA route. Prices on flights to Seattle from Toronto can vary based on many factors including dates. To look at price based on your preferred dates, click here.

  • How do most travelers feel about WestJet?

    WestJet has received a 7.2/10 rating from 2,823 Cheapflights user reviews. If you wish to plan your next trip from Toronto to Seattle with WestJet, enter your preferred travel dates above!

Find WestJet flight deals from Toronto to Seattle

Cheapest WestJet flights from Toronto to Seattle
Explore the most affordable WestJet flight options available from Toronto to Seattle. Find the lowest fares with prices last updated on 29 April 2025.

Sun 18/56:00 a.m.YHM - SEA
1 stop9h 58mWestJet
Fri 30/51:50 p.m.SEA - YHM
1 stop7h 51mWestJet
Deal found 28/4C$ 267
Sat 31/56:00 a.m.YKF - SEA
1 stop9h 58mWestJet
Sat 7/67:05 a.m.SEA - YKF
1 stop14h 41mWestJet
Deal found 28/4C$ 382
Sun 25/56:30 a.m.YYZ - SEA
1 stop9h 28mWestJet
Wed 4/61:50 p.m.SEA - YYZ
1 stop7h 34mWestJet
Deal found 28/4C$ 387

Travel insights for WestJet flights from Toronto to Seattle

Get recent, data-driven insights about WestJet 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 with WestJet?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Seattle. Price data was last updated on 25 April 2025.

Booking with WestJet 79 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.

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).

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.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Toronto to Seattle on another airline

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on 29 April 2025.
United Airlines flights from Toronto to Seattle/Tacoma Intl
Air Canada flights from Toronto to Seattle/Tacoma Intl

See what others are saying about WestJet

Read reviews and see what other travellers are saying about their experiences with WestJet. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing WestJet for your next flight. Reviews last updated 29 April 2025.
WestJet
7.2
Good
2,823 reviews
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Overview

Entertainment

6.1

Comfort

7.1

Boarding

7.4

Food

6.2

Crew

7.9

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