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United Airlines flights from Toronto Pearson Intl Airport to Seattle (YYZ - SEA)

YYZ — SEA
4 May — 11 May1
1 adult

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

United Airlines flights from Pearson Intl to Seattle in 2025

Find detailed information about United Airlines flights from Pearson Intl to Seattle. Explore the options provided by United Airlines to plan your journey from Pearson Intl to Seattle. Data last updated 29 April 2025.

One-way from

C$ 263

Round-trip from

C$ 432

Popular in

December

Cheapest in

February

Average price (all airlines)

C$ 496
United Airlines
  • United Airlines
  • 26/5
  • 1 total stop
  • 7h 32m total
  • Toronto to Seattle
United Airlines
  • United Airlines
  • 21/5-3/6
  • 2 total stops
  • 16h 48m total
  • Toronto to Seattle
Highest demand for flights from Toronto Pearson Intl to Seattle/Tacoma Intl; 3% potential price increase.
Best time to find cheap flights from Toronto Pearson Intl to Seattle/Tacoma Intl; 1% potential price drop.
Average price for all Toronto Pearson Intl to Seattle/Tacoma Intl flights (one-way and round-trip).
  • Can I get a flight from Toronto Pearson Intl Airport to Seattle on United Airlines for under C$ 400?

    Cheapflights currently has 1 YYZ-SEA flights for under C$ 400. Flights to Seattle will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

  • How do most travelers feel about United Airlines?

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

Find United Airlines flight deals from Pearson Intl to Seattle

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

Wed 21/56:20 p.m.YYZ - SEA
1 stop9h 39mUnited Airlines
Wed 4/61:49 p.m.SEA - YYZ
1 stop7h 09mUnited Airlines
Deal found 29/4C$ 432

Travel insights for United Airlines flights from Pearson Intl to Seattle

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

How far ahead should I book a flight from Toronto Pearson Intl Airport to Seattle with United Airlines?

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

Booking with United Airlines 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto Pearson Intl Airport 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 Pearson Intl Airport to Seattle with United Airlines?

Currently, the most affordable month to book a United Airlines flight from Toronto Pearson Intl Airport to Seattle in September, with an average price of C$ 133. Conversely, traveling with United Airlines from Toronto Pearson Intl Airport to Seattle in June will be the most expensive, with an average cost of C$ 448. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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 Pearson Intl to Seattle

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

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Fly from Pearson Intl 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.

See what others are saying about United Airlines

Read reviews and see what other travellers are saying about their experiences with United Airlines. 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 United Airlines for your next flight. Reviews last updated 29 April 2025.
United Airlines
7.4
Good
8,696 reviews
Overview

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

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