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

YTO — SEA
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

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 20 May 2024.

Popular in

December

Cheapest in

October

Average price (all airlines)

C$ 668

One-way from

C$ 290

Round-trip from

C$ 456
Highest demand for flights from Toronto to Seattle/Tacoma Intl; 5% 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 9,163 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 406,307 searches. The data was last updated on 20 May 2024.
Thu 20/68:25 a.m.YYZ - SEA
Nonstop5h 26mUnited Airlines
Mon 24/611:59 p.m.SEA - YYZ
1 stop8h 53mUnited Airlines
Deal found 19/5C$ 611
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Thu 20/65:30 p.m.YYZ - SEA
1 stop9h 28mUnited Airlines
Thu 27/611:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 19/5C$ 619
Pick Dates
Tue 11/67:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Tue 18/67:00 a.m.SEA - YYZ
1 stop9h 52mUnited Airlines
Deal found 19/5C$ 651
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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 406,307 searches. The data was last updated on 20 May 2024.
Tue 30/78:25 a.m.YYZ - SEA
Nonstop5h 26mUnited Airlines
Wed 4/911:10 p.m.SEA - YYZ
Nonstop4h 33mUnited Airlines
Deal found 19/5C$ 555
Pick Dates
Thu 20/68:25 a.m.YYZ - SEA
Nonstop5h 26mUnited Airlines
Thu 27/611:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 19/5C$ 611
Pick Dates
Wed 24/77:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Sun 11/811:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 19/5C$ 796
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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 20 May 2024 and based on user searches. In the last 7 days Cheapflights users made total of 406,307 searches.
Thu 30/53:00 p.m.YYZ - SEA
1 stop9h 23mUnited Airlines
Thu 30/512:25 a.m.SEA - YYZ
1 stop6h 33mUnited Airlines
Deal found 18/5C$ 657
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Thu 30/57:00 a.m.YYZ - SEA
2 stops11h 52mUnited Airlines
Thu 30/512:25 a.m.SEA - YYZ
1 stop6h 33mUnited Airlines
Deal found 18/5C$ 666
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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 406,307 searches. The data was last updated on 20 May 2024.
Fri 15/119:00 a.m.YYZ - SEA
1 stop12h 59mUnited Airlines
Deal found 19/5C$ 290
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Fri 15/119:00 a.m.YYZ - SEA
2 stops12h 13mUnited Airlines
Deal found 19/5C$ 302
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Sat 8/68:25 a.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Deal found 19/5C$ 348
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Average price of United Airlines flights from Toronto to Seattle

Plan your United Airlines flight from Toronto to Seattle by taking into account the cheapest months to travel. The average price of a one-way United Airlines flight from Toronto to Seattle is currently C$ 313 while a round-trip flight costs C$ 654. Price data was last updated on 19 May 2024.

Currently, the most affordable month to book a United Airlines flight from Toronto to Seattle in October, with an average price of C$ 302. Conversely, traveling with United Airlines from Toronto to Seattle in March will be the most expensive, with an average cost of C$ 420. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

C$ 444

February

C$ 459

March

C$ 572

April

C$ 561

May

C$ 436

June

C$ 487

July

C$ 546

August

C$ 557

September

C$ 543

October

C$ 411

November

C$ 430

December

C$ 480

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).

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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 20 May 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 20 May 2024.
United Airlines
7.4
Good
10,894 reviews
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Overview

Boarding

7.7

Comfort

7.2

Food

6.7

Entertainment

7.1

Crew

8.1
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