Is WestJet the cheapest airline to fly with from Toronto to Seattle?

Yes, based on our data, WestJet is the cheapest airline to fly the route with an average price of C$ 358 return. The next cheapest options are Alaska Airlines and Delta, with return flights costing C$ 397 and C$ 435 on average respectively.

What is the cheapest WestJet flight from Toronto to Seattle?

In the last 3 days, the lowest price for a flight with WestJet from Toronto to Seattle was C$ 231 for a return flight and C$ 148 for a one-way flight.

Does WestJet fly direct to Seattle from Toronto?

No, WestJet does not fly the route directly.

What’s the cheapest day of the week to fly from Toronto to Seattle with WestJet?

On average, the cheapest day of the week to fly from Toronto to Seattle with WestJet is Tuesday, when prices are around C$ 123. The most expensive day is generally Wednesday, when the average price is around C$ 161.

What’s the cheapest month to fly from Toronto to Seattle with WestJet?

The cheapest month for WestJet flights to Seattle from Toronto is generally November, where plane tickets cost C$ 176 on average. If possible, try to avoid the most expensive months of December and April, when tickets cost C$ 317 and C$ 401 respectively.

C$ 199 Cheap WestJet Flights from Toronto to Seattle

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Cheap WestJet Flight Deals from Toronto to Seattle

Here are some of the best deals found on KAYAK recently from WestJet for round-trip flights from Toronto 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

Recent round-trip WestJet flight deals from Toronto to Seattle

Recommended round-trip WestJet deals departing in the coming months from the most popular airlines that fly from Toronto to Seattle.

Discover the best prices and deals for you by selecting your travel dates.

Choose your dates

8:00 a.m. - 12:58 p.m.YYZ-SEA

7h 58m1 stop

7:05 a.m. - 6:54 p.m.SEA-YYZ

8h 49m1 stop

C$ 332WestJet

Find Deal

Tue, 29 Apr - Tue, 13 May

6:30 a.m. - 12:58 p.m.YYZ-SEA

9h 28m1 stop

7:05 a.m. - 6:54 p.m.SEA-YYZ

8h 49m1 stop

C$ 364WestJet

Find Deal

Wed, 14 May - Thu, 12 Jun

8:00 a.m. - 12:58 p.m.YYZ-SEA

7h 58m1 stop

2:05 p.m. - 5:51 a.m.SEA-YYZ

12h 46m2 stops

C$ 368WestJet

Find Deal

Tue, 29 Apr - Tue, 13 May

1:30 p.m. - 8:28 p.m.YYZ-SEA

9h 58m1 stop

7:05 a.m. - 9:03 p.m.SEA-YYZ

10h 58m2 stops

C$ 372WestJet

Find Deal

Wed, 14 May - Thu, 12 Jun

6:30 a.m. - 12:58 p.m.YYZ-SEA

9h 28m1 stop

7:05 a.m. - 6:52 a.m.SEA-YYZ

20h 47m1 stop

C$ 376WestJet

Find Deal

Tue, 13 May - Sun, 18 May

9:00 a.m. - 8:28 p.m.YYZ-SEA

14h 28m2 stops

2:05 p.m. - 5:51 a.m.SEA-YYZ

12h 46m2 stops

C$ 378WestJet

Find Deal

Tue, 29 Apr - Tue, 13 May

6:30 a.m. - 12:58 p.m.YYZ-SEA

9h 28m1 stop

7:05 a.m. - 12:33 a.m.SEA-YYZ

14h 28m2 stops

C$ 384WestJet

Find Deal

Tue, 13 May - Tue, 20 May

7:55 a.m. - 2:21 p.m.YYZ-SEA

9h 26m1 stop

3:15 p.m. - 5:58 a.m.SEA-YYZ

11h 43m2 stops

C$ 388WestJet

Find Deal

Thu, 3 Apr - Tue, 8 Apr

7:55 a.m. - 2:21 p.m.YYZ-SEA

9h 26m1 stop

3:15 p.m. - 5:58 a.m.SEA-YYZ

11h 43m2 stops

C$ 395WestJet

Find Deal

Fri, 4 Apr - Sat, 19 Apr

7:55 a.m. - 2:21 p.m.YYZ-SEA

9h 26m1 stop

11:30 a.m. - 11:11 p.m.SEA-YYZ

8h 41m2 stops

C$ 396WestJet

Find Deal

Tue, 1 Apr - Thu, 10 Apr

Low season	January
High season	August
Cheapest flight	C$ 199
Average price round-trip	C$ 378

Best time to beat the crowds (34% less expensive on average)

Most popular time to fly (4% more expensive on average)

Flight from Toronto Region of Waterloo Intl to Seattle

(price for this month)

When to Book Flights with WestJet from Toronto to Seattle

Average price per month

Flight prices as travel date approaches

Is WestJet the cheapest airline to fly with from Toronto to Seattle?
Yes, based on our data, WestJet is the cheapest airline to fly the route with an average price of C$ 358 return. The next cheapest options are Alaska Airlines and Delta, with return flights costing C$ 397 and C$ 435 on average respectively.
What is the cheapest WestJet flight from Toronto to Seattle?
In the last 3 days, the lowest price for a flight with WestJet from Toronto to Seattle was C$ 231 for a return flight and C$ 148 for a one-way flight.
Does WestJet fly direct to Seattle from Toronto?
No, WestJet does not fly the route directly.
What’s the cheapest day of the week to fly from Toronto to Seattle with WestJet?
On average, the cheapest day of the week to fly from Toronto to Seattle with WestJet is Tuesday, when prices are around C$ 123. The most expensive day is generally Wednesday, when the average price is around C$ 161.
What’s the cheapest month to fly from Toronto to Seattle with WestJet?
The cheapest month for WestJet flights to Seattle from Toronto is generally November, where plane tickets cost C$ 176 on average. If possible, try to avoid the most expensive months of December and April, when tickets cost C$ 317 and C$ 401 respectively.

See more FAQs

7.2

GoodBased on 2,801 verified guest reviews

6.1Entertainment

6.2Food

7.9Crew

7.1Comfort

7.4Boarding

Pros +

the flight crew made our flight very comfortable and pleasant. (in 355 reviews)

Cons -

Show reviews that mention

2.0 Poor

Verified traveller, Feb 2025

YYZ-YYC

Flight cancelled and Kayak switched our return flight to a red eye. Ridiculous.

2.0 Poor

Verified traveller, Feb 2025

ATL-YYZ

broken plane

2.0 Poor

Verified traveller, Feb 2025

CAE-ATL

Lots of delays and a broken plane, would not recommend

2.0 Poor

Arash, Feb 2025

LAX-YVR

Horrible. I checked out myself that it seems that I can have a free carry-on. But they ask me to pay $75 when we are nearly boarding. It was tricky during check out that make you mistake that you can have a carry-on beside your personal item. Also they ask $75 in the airport instead of $35 during checkout. So the whole process is designed to make you this mistake

2.0 Poor

Dennis, Feb 2025

ATL-YEG

Westjet is one of the worst airlines in the world. 100% guaranteed to have flight delays and flight cancellations. Will never book again with Westjet.

2.0 Poor

Dennis, Feb 2025

MCO-ATL

Westjet is the worst airline. If you fly with them, you can expect 100% delays or flight cancellations. I support all Canadian, but not Westjet. They are terrible at what they do and will avoid them as much as possible.

8.0 Very good

Verified traveller, Feb 2025

ATL-ECP

Short flight. Very bad seat

2.0 Poor

Verified traveller, Feb 2025

YYZ-ATL

Will never book through you again. Very disappointed in the notices and action taken or provided when planes are rescheduled, enough to cause missed connections

8.0 Very good

Doug, Feb 2025

YYC-PVR

Took off 1 hour late. Something to do with luggage

8.0 Very good

Verified traveller, Feb 2025

LAX-YWG

Plane should have entertainment, instead of people paying to use wifi