Flights
Insights
FAQs

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

YYZ — SEA
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Find United Airlines flight deals from Pearson Intl to Seattle

Enter your travel dates to find the best prices.

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 15 June 2026.

Fri 3/711:00 a.m.
YYZ
-
SEA
2 stops17h 29m
United Airlines
Sat 4/75:00 a.m.
SEA
-
YYZ
1 stop13h 32m
United Airlines
Deal found 11/6C$ 547
Wed 1/74:18 p.m.
YYZ
-
SEA
1 stop18h 42m
United Airlines
Fri 10/75:15 p.m.
SEA
-
YYZ
1 stop13h 39m
United Airlines
Deal found 12/6C$ 554
Thu 25/69:35 a.m.
YYZ
-
SEA
1 stop9h 20m
United Airlines
Sat 4/75:00 a.m.
SEA
-
YYZ
2 stops15h 59m
United Airlines
Deal found 11/6C$ 555

  • How do most travelers feel about United Airlines?

    United Airlines has received a 7.4/10 rating from 9,831 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!

  • Can I get a flight from Toronto Pearson Intl Airport to Seattle on United Airlines for under C$ 699?

    Cheapflights currently has 11 YYZ-SEA flights for under C$ 699. 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.

United Airlines flights from Pearson Intl to Seattle in 2026

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 15 June 2026.

One-way from

C$ 308

Round-trip from

C$ 524

Popular in

June

Cheapest in

February

Average price (all airlines)

C$ 625
United Airlines
  • United Airlines
  • 14/11
  • 1 total stop
  • 16h 35m total
  • Toronto to Seattle
Search Deals
United Airlines
  • United Airlines
  • 5/12-5/12
  • 2 total stops
  • 18h 23m total
  • Toronto to Seattle
Search Deals
Highest demand for flights from Toronto Pearson Intl to Seattle/Tacoma Intl; 18% potential price increase.
Search Deals
Best time to find cheap flights from Toronto Pearson Intl to Seattle/Tacoma Intl; 3% potential price drop.
Search Deals
Average price for all Toronto Pearson Intl to Seattle/Tacoma Intl flights (one-way and round-trip).
Search Deals

Which month is the cheapest to fly Economy Class from Toronto Pearson Intl Airport to Seattle?

For Economy Class flights, the cheapest month to fly this route is November. The most expensive months are March and August.

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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 15 June 2026.
WestJet flights from Toronto Pearson Intl to Seattle/Tacoma Intl

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 15 June 2026.
United Airlines
7.4
Good
9,841 reviews
Check prices
Overview

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.