Is United Airlines cheaper than other airlines flying to Seattle?

United Airlines is the cheapest airline flying to Seattle with an average return price of C$ 516. Flights to Seattle with WestJet cost C$ 639 on average, while Delta cost C$ 905.

Which other airlines fly to Seattle?

Along with United Airlines, you can also fly to Seattle with WestJet, Delta and American Airlines.

How much is a flight to Seattle with United Airlines?

On average, United Airlines flights to Seattle cost C$ 516 for a round-trip.

Which airport do United Airlines flights to Seattle fly into?

You’ll fly into Seattle/Tacoma Airport when flying to Seattle with United Airlines.

Are there any other airlines in Star Alliance that fly to Seattle?

Unfortunately, there are no other airlines in Star Alliance that fly to Seattle.

United Airlines flights to Seattle (SEA) from C$ 159

Flights Deals

Cheap United Airlines Flight Deals to Seattle

Here are some of the best deals found on KAYAK recently from United Airlines to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Direct

Recent round-trip United Airlines flight deals to Seattle

KAYAK's recommended round-trip United Airlines deals departing in the coming months to Seattle.

Discover the best prices for you by selecting your travel dates on KAYAK.

5:45 a.m. - 10:16 p.m.YLW-SEA

16h 31m2 stops

2:55 p.m. - 7:58 p.m.SEA-YLW

5h 03m1 stop

C$ 293United Airlines

Find Deal

Thu, 7 Aug - Sun, 10 Aug

3:22 p.m. - 12:59 a.m.YYC-SEA

10h 37m1 stop

2:30 p.m. - 9:48 p.m.SEA-YYC

6h 18m1 stop

C$ 310United Airlines

Find Deal

Tue, 27 May - Tue, 3 Jun

5:45 a.m. - 9:21 a.m.YLW-SEA

3h 36m1 stop

6:25 a.m. - 7:58 p.m.SEA-YLW

13h 33m2 stops

C$ 316United Airlines

Find Deal

Fri, 20 Jun - Mon, 23 Jun

9:10 p.m. - 10:13 p.m.YVR-SEA

1h 03mdirect

7:15 p.m. - 8:20 p.m.SEA-YVR

1h 05mdirect

C$ 320United Airlines

Find Deal

Tue, 27 May - Tue, 3 Jun

3:49 p.m. - 9:31 p.m.YYC-SEA

6h 42m1 stop

7:33 p.m. - 12:19 p.m.SEA-YYC

15h 46m1 stop

C$ 320United Airlines

Find Deal

Tue, 13 May - Fri, 16 May

5:45 a.m. - 9:58 p.m.YLW-SEA

16h 13m2 stops

6:25 a.m. - 7:58 p.m.SEA-YLW

13h 33m2 stops

C$ 323United Airlines

Find Deal

Fri, 20 Jun - Mon, 23 Jun

3:49 p.m. - 9:31 p.m.YYC-SEA

6h 42m1 stop

5:15 a.m. - 1:53 p.m.SEA-YYC

7h 38m1 stop

C$ 329United Airlines

Find Deal

Fri, 16 May - Sat, 17 May

3:17 p.m. - 9:02 p.m.YEG-SEA

6h 45m1 stop

5:15 a.m. - 2:08 p.m.SEA-YEG

7h 53m1 stop

C$ 329United Airlines

Find Deal

Thu, 15 May - Sun, 18 May

3:49 p.m. - 12:59 a.m.YYC-SEA

10h 10m1 stop

7:33 p.m. - 12:19 p.m.SEA-YYC

15h 46m1 stop

C$ 331United Airlines

Find Deal

Fri, 16 May - Tue, 20 May

3:17 p.m. - 11:03 p.m.YEG-SEA

8h 46m1 stop

5:15 a.m. - 2:08 p.m.SEA-YEG

7h 53m1 stop

C$ 331United Airlines

Find Deal

Thu, 15 May - Sun, 18 May

Useful Info

Low season	February
High season	August
Cheapest flight	C$ 159
Average price round-trip	C$ 507

Best time to beat the crowds (0% less expensive on average)

Most popular time to fly and prices are also 14% lower on average.

Flight from Kelowna to Seattle

(price for this month)

When to book flights with United Airlines to Seattle

Average price per month

Flight prices as travel date approaches

Is United Airlines cheaper than other airlines flying to Seattle?
United Airlines is the cheapest airline flying to Seattle with an average return price of C$ 516. Flights to Seattle with WestJet cost C$ 639 on average, while Delta cost C$ 905.
Which other airlines fly to Seattle?
Along with United Airlines, you can also fly to Seattle with WestJet, Delta and American Airlines.
How much is a flight to Seattle with United Airlines?
On average, United Airlines flights to Seattle cost C$ 516 for a round-trip.
Which airport do United Airlines flights to Seattle fly into?
You’ll fly into Seattle/Tacoma Airport when flying to Seattle with United Airlines.
Are there any other airlines in Star Alliance that fly to Seattle?
Unfortunately, there are no other airlines in Star Alliance that fly to Seattle.

The cheapest flight to Seattle with United Airlines found on KAYAK in the last 2 weeks departed from Montreal Pierre Elliott Trudeau Intl Airport and cost C$ 493.

7.4

GoodBased on 8,696 verified guest reviews

6.6Food

7.3Comfort

8.1Crew

7.1Entertainment

7.7Boarding

Pros +

Cons -

Show reviews that mention

8.0 Very good

Anonymous, Apr 2025

Everything

10.0 Wonderful

David, Apr 2025

No issues, great flight, great crew

10.0 Wonderful

Vincenzo, Apr 2025

Friendly crew, all very smooth

8.0 Very good

Vincenzo, Apr 2025

Crew friendly and efficient. Nobody seated next to me

2.0 Poor

Brant, Apr 2025

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

10.0 Wonderful

Anonymous, Apr 2025

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

8.0 Very good

Anonymous, Apr 2025

A bit rush for transit. Food and entertainment are not available

8.0 Very good

Anonymous, Apr 2025

So far so good but food and entertainment are not available for this flight

10.0 Wonderful

Dr. Joseph, Apr 2025

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

8.0 Very good

Leslie, Apr 2025

Good

Everything you need to know for your flight to Seattle

Airlines

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Return flight deals

United Airlines flights

Other airlines flying to Seattle

WestJet flights to Seattle

Air Canada flights to Seattle

Delta flights to Seattle

Alaska Airlines flights to Seattle

SEA

Find cheap United Airlines flights to Seattle from C$ 159

Search hundreds of travel sites at once for deals on United Airlines flights to Seattle

Cheap United Airlines Flight Deals to Seattle

Recent round-trip United Airlines flight deals to Seattle

Recent one-way United Airlines flight deals to Seattle

Recent last minute United Airlines flight deals to Seattle

Recent direct United Airlines flight deals to Seattle

Good to know

When to book flights with United Airlines to Seattle

FAQs for flying to Seattle with United Airlines

Is United Airlines cheaper than other airlines flying to Seattle?

Which other airlines fly to Seattle?

How much is a flight to Seattle with United Airlines?

Which airport do United Airlines flights to Seattle fly into?

Are there any other airlines in Star Alliance that fly to Seattle?

Top tips for your flights to Seattle with United Airlines

United Airlines customer reviews

Pros +

Cons -

Traveler rating:

Sort by:

Everything you need to know for your flight to Seattle

Other airlines flying to Seattle

Information on the airport you'll fly into in Seattle

Cabin class types available on flights to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Flights to other popular destinations

Flights from domestic origins to Seattle

Find deals for your return flight

Top United Airlines flights