Find flights
Flight research
Deals
United Airlines Reviews

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

YTO — SEA
3 May — 10 May1
1 adult
Fri 3/5
Fri 10/5

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 28 April 2024.

Popular in

December

Cheapest in

January

Average price (all airlines)

C$ 596

One-way from

C$ 366

Round-trip from

C$ 577
Highest demand for flights from Toronto to Seattle/Tacoma Intl; 1% potential price increase.
Search Deals
Best time to find cheap flights from Toronto to Seattle/Tacoma Intl; 2% potential price drop.
Search Deals
Average price for all Toronto to Seattle/Tacoma Intl flights (one-way and round-trip).
Search Deals
Cheapest one-way United Airlines flight from Toronto to Seattle/Tacoma Intl
Search Deals
Cheapest round-trip United Airlines flight from Toronto to Seattle/Tacoma Intl
Search Deals

  • Can I get a flight from Toronto to Seattle on United Airlines for under C$ 500?

    Cheapflights users have found 1 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 8.1/10. This rating comes from 9,110 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 490,828 searches. The data was last updated on 28 April 2024.
Tue 21/56:30 a.m.YYZ - SEA
1 stop15h 11mUnited Airlines
Tue 28/511:40 a.m.SEA - YYZ
Nonstop4h 38mUnited Airlines
Deal found 27/4C$ 577
Pick Dates
Fri 10/54:00 p.m.YYZ - SEA
1 stop9h 34mUnited Airlines
Mon 27/511:10 p.m.SEA - YYZ
Nonstop4h 38mUnited Airlines
Deal found 28/4C$ 619
Pick Dates
Wed 8/56:15 a.m.YYZ - SEA
2 stops12h 16mUnited Airlines
Thu 9/511:45 p.m.SEA - YYZ
1 stop7h 13mUnited Airlines
Deal found 28/4C$ 662
Pick Dates

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 490,828 searches. The data was last updated on 28 April 2024.
Wed 7/88:25 a.m.YYZ - SEA
Nonstop5h 26mUnited Airlines
Sun 11/811:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 27/4C$ 696
Pick Dates
Thu 18/77:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Thu 25/711:10 p.m.SEA - YYZ
Nonstop4h 40mUnited Airlines
Deal found 28/4C$ 744
Pick Dates
Tue 14/57:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Sat 18/511:10 p.m.SEA - YYZ
Nonstop4h 38mUnited Airlines
Deal found 27/4C$ 887
Pick Dates

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 28 April 2024 and based on user searches. In the last 7 days Cheapflights users made total of 490,828 searches.
Wed 8/56:15 a.m.YYZ - SEA
2 stops12h 16mUnited Airlines
Thu 9/511:45 p.m.SEA - YYZ
1 stop7h 13mUnited Airlines
Deal found 28/4C$ 662
Pick Dates
Wed 8/58:25 a.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Fri 10/511:45 p.m.SEA - YYZ
1 stop9h 07mUnited Airlines
Deal found 28/4C$ 947
Pick Dates

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 490,828 searches. The data was last updated on 28 April 2024.
Thu 9/51:00 p.m.YYZ - SEA
2 stops14h 58mUnited Airlines
Deal found 28/4C$ 366
Pick Dates
Fri 3/57:40 p.m.YYZ - SEA
Nonstop5h 18mUnited Airlines
Deal found 27/4C$ 2,876
Pick Dates

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$ 1,621 while a round-trip flight costs C$ 775. Price data was last updated on 28 April 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 August will be the most expensive, with an average cost of C$ 426. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

C$ 446

February

C$ 461

March

C$ 578

April

C$ 563

May

C$ 435

June

C$ 491

July

C$ 559

August

C$ 582

September

C$ 555

October

C$ 413

November

C$ 428

December

C$ 485

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

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

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 28 April 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 28 April 2024.
United Airlines
7.4
Good
11,221 reviews
Check prices
Overview

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Food

6.7
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.
View all available airlines