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United Airlines flights from Toronto to Seattle (YTO - SEA)

YTO — SEA
22 Jun — 29 Jun1
1 adult
Sat 22/6
Sat 29/6

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 Toronto to Seattle in 2024

Find detailed information about United Airlines flights from Toronto to Seattle. Explore the options provided by United Airlines to plan your journey from Toronto to Seattle. Data last updated 17 June 2024.

Popular in

December

Cheapest in

October

Average price (all airlines)

C$ 657

One-way from

C$ 301

Round-trip from

C$ 504
Highest demand for flights from Toronto to Seattle/Tacoma Intl; 7% 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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Cheapest one-way United Airlines flight from Toronto to Seattle/Tacoma Intl
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Cheapest round-trip United Airlines flight from Toronto to Seattle/Tacoma Intl
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  • Can I get a flight from Toronto to Seattle on United Airlines for under C$ 500?

    Cheapflights users have found 4 United Airlines flights for under C$ 500 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 United Airlines?

    Cheapflights users who travel with United Airlines (a popular airline from Toronto to Seattle) have rated them a 8.0/10. This rating comes from 9,278 reviews. If you are looking to travel YTO-SEA, search your dates above.

Cheapest United Airlines flights from Toronto to Seattle

Discover the cheapest flight options specifically offered by United Airlines for travel from Toronto to Seattle. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 435,924 searches. The data was last updated on 17 June 2024.
Tue 25/66:15 a.m.YYZ - SEA
1 stop8h 12mUnited Airlines
Thu 4/711:59 p.m.SEA - YYZ
1 stop8h 36mUnited Airlines
Deal found 17/6C$ 589
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Mon 24/64:18 p.m.YYZ - SEA
1 stop9h 32mUnited Airlines
Thu 4/75:00 a.m.SEA - YYZ
1 stop14h 36mUnited Airlines
Deal found 17/6C$ 593
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Tue 16/76:10 a.m.YYZ - SEA
1 stop17h 56mUnited Airlines
Mon 22/712:30 a.m.SEA - YYZ
1 stop17h 13mUnited Airlines
Deal found 16/6C$ 621
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Direct flights from Toronto to Seattle on United Airlines

Discover the cheapest flight options specifically offered by United Airlines for travel from Toronto to Seattle. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days Cheapflights users made total of 435,924 searches. The data was last updated on 17 June 2024.
Sun 11/88:25 a.m.YYZ - SEA
Nonstop5h 26mUnited Airlines
Fri 16/811:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 17/6C$ 602
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Fri 5/77:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Sun 7/711:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 16/6C$ 1,061
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Sun 7/77:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Mon 15/711:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 16/6C$ 1,614
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Last minute deals on Cheapflights

Explore last-minute flight deals on United Airlines for various destinations, including Toronto to Seattle. Discover attractive deals on flights departing soon. Keep an eye on the latest last-minute deals to find great opportunities for spontaneous travel. Please note that prices are subject to change and availability may vary. Data last updated 17 June 2024 and based on user searches. In the last 7 days Cheapflights users made total of 435,924 searches.
Tue 25/66:15 a.m.YYZ - SEA
1 stop8h 12mUnited Airlines
Thu 4/711:59 p.m.SEA - YYZ
1 stop8h 36mUnited Airlines
Deal found 17/6C$ 589
Pick Dates
Mon 24/64:18 p.m.YYZ - SEA
1 stop9h 32mUnited Airlines
Thu 4/75:00 a.m.SEA - YYZ
1 stop14h 36mUnited Airlines
Deal found 17/6C$ 593
Pick Dates
Mon 24/64:18 p.m.YYZ - SEA
1 stop9h 32mUnited Airlines
Thu 4/711:59 p.m.SEA - YYZ
1 stop8h 36mUnited Airlines
Deal found 17/6C$ 626
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One-way United Airlines flights to Seattle from Toronto

Search for one-way flight options from Toronto to Seattle specifically provided by United Airlines. Find affordable one-way fares from United Airlines and compare prices with other airlines. These prices are based on average fares users found. In the last 7 days Cheapflights users made total of 435,924 searches. The data was last updated on 17 June 2024.
Mon 15/78:00 a.m.YYZ - SEA
1 stop17h 45mUnited Airlines
Deal found 16/6C$ 301
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Fri 15/1111:00 a.m.YYZ - SEA
1 stop14h 29mUnited Airlines
Deal found 16/6C$ 313
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Fri 15/114:10 p.m.YYZ - SEA
2 stops22h 45mUnited Airlines
Deal found 16/6C$ 320
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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.

Temperature and rainfall in Seattle by month

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

SEA

Temperature

5 - 19 °C

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).

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 17 June 2024.

WestJet flights from Toronto to Seattle/Tacoma Intl
Air Canada flights from Toronto 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 17 June 2024.
United Airlines
7.4
Good
10,000 reviews
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Overview

Entertainment

7.1

Comfort

7.2

Crew

8.1

Boarding

7.7

Food

6.7
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