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Find cheap United Airlines flights to Seattle

CMH — SEA
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Canada to Seattle
Explore the most affordable United Airlines flight options available from Canada to Seattle. Find the lowest fares with prices last updated on 27 July 2026.

Fri 21/89:00 a.m.
YVR
-
SEA
Nonstop1h 05m
United Airlines
Fri 28/85:50 a.m.
SEA
-
YVR
Nonstop1h 10m
United Airlines
Deal found 24/7C$ 449
Thu 6/89:00 a.m.
YVR
-
SEA
Nonstop1h 05m
United Airlines
Sat 8/87:20 p.m.
SEA
-
YVR
Nonstop1h 10m
United Airlines
Deal found 23/7C$ 451
Mon 24/812:09 p.m.
YVR
-
SEA
1 stop9h 42m
United Airlines
Tue 25/83:30 p.m.
SEA
-
YVR
1 stop5h 29m
United Airlines
Deal found 24/7C$ 452

Flights to Seattle with United Airlines at a glance

Find detailed information about United Airlines flights from Canada to Seattle. Explore the options provided by United Airlines to plan your journey from Canada to Seattle. Data last updated 27 July 2026.

Popular in

July

Cheapest in

March

Average price

C$ 594

Round-trip from

C$ 365

One-way from

C$ 221
Highest demand for flights to Seattle with United Airlines; 31% potential price increase.
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Best time to find cheap flights to Seattle with United Airlines; 5% potential price drop.
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Average price for flights to Seattle with United Airlines (round-trip).
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United Airlines
  • United Airlines
  • 2/10-11/10
  • 2 total stops
  • 16h 57m total
  • Canada to Seattle
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United Airlines
  • United Airlines
  • 7/10
  • 1 total stop
  • 9h 04m total
  • Canada to Seattle
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Cheapflights Insights

Find cheap United Airlines flights to Seattle

How long is the flight to Seattle with United Airlines?

On average, United Airlines flights from Canada to Seattle take 1 hour 47 minutes. Flights to Seattle from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

United Airlines weekly flight availability to Seattle

The most flights to Seattle operated by United Airlines are scheduled on a Monday (6 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

When is the cheapest time to fly to Seattle with United Airlines?

Users looking for the cheapest United Airlines fares to Seattle should consider flying on Thursday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday evenings, when prices are usually at their highest.

FAQs about flights to Seattle with United Airlines

  • Which airport do United Airlines flights arrive at when travelling to Seattle?

    United Airlines flights on this route tend to land at Seattle/Tacoma Intl Airport.

  • Is United Airlines the cheapest airline for a flight to Seattle?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average round-trip price for flights to Seattle tends to be with Harbour Air Seaplanes.

  • Are there alternative airlines other than United Airlines that fly to Seattle?

    WestJet, Air Canada and Alaska Airlines all fly to Seattle and offer an alternative to United Airlines.

  • How much is a flight to Seattle with United Airlines?

    The average price for a round-trip with United Airlines is C$ 709, while a one-way flight costs around C$ 508.

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Reviews of United Airlines

See what Cheapflights users have to say about their United Airlines experience.
United Airlines
7.4
Good
10,000 reviews
Check prices
Overview

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Popular United Airlines flights

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