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Cheap flights from Seattle to St. John's from C$ 337

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYT
15 Aug — 22 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to St. John's

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to St. John's
Explore the most affordable flight options available from Seattle to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2026.

Sun 23/87:00 a.m.
SEA
-
YYT
2 stops11h 25m
WestJet
Thu 27/89:20 a.m.
YYT
-
SEA
2 stops13h 55m
WestJet
Deal found 15/7C$ 617
Tue 18/87:00 a.m.
SEA
-
YYT
2 stops11h 25m
WestJet
Fri 21/89:20 a.m.
YYT
-
SEA
2 stops13h 55m
WestJet
Deal found 13/7C$ 618
Tue 8/97:00 a.m.
SEA
-
YYT
2 stops11h 25m
WestJet
Sun 13/99:20 a.m.
YYT
-
SEA
2 stops28h 50m
WestJet
Deal found 11/7C$ 627
Wed 2/123:10 p.m.
SEA
-
YYT
1 stop12h 07m
WestJet
Tue 8/129:45 a.m.
YYT
-
SEA
1 stop32h 05m
WestJet
Deal found 13/7C$ 659
Sun 9/87:00 a.m.
SEA
-
YYT
2 stops20h 55m
WestJet
Sat 15/89:20 a.m.
YYT
-
SEA
2 stops16h 10m
WestJet
Deal found 13/7C$ 687
Tue 29/97:35 p.m.
SEA
-
YYT
1 stop30h 40m
WestJet
Fri 2/103:00 p.m.
YYT
-
SEA
2 stops23h 10m
WestJet
Deal found 10/7C$ 777

Find flight deals from Seattle to St. John's

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to St. John's (YYT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 July 2026.

Round-trip from

C$ 617

One-way from

C$ 337
WestJet
  • WestJet
  • 23/8-27/8
  • 4 total stops
  • 25h 20m total
  • Seattle to St. John's
Search Deals
WestJet
  • WestJet
  • 6/8
  • 2 total stops
  • 17h 25m total
  • Seattle to St. John's
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to St. John's that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 July 2026.
Use the filters below to find and compare flights from Seattle to St. John's that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sun 23/8

7:35 p.m.-6:35 p.m.

1 stop18h 30m

St John's

Thu 27/8

9:20 a.m.-9:00 p.m.

2 stops16h 10m

C$ 656

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sun 9/8

7:00 a.m.-8:25 a.m.

2 stops20h 55m

St John's

Sat 15/8

9:20 a.m.-9:00 p.m.

2 stops16h 10m

C$ 687

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 29/9

7:35 p.m.-6:45 a.m.

1 stop30h 40m

St John's

Fri 2/10

3:00 p.m.-9:40 a.m.

2 stops23h 10m

C$ 777

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sun 23/8

7:00 a.m.-10:55 p.m.

2 stops11h 25m

St John's

Thu 27/8

6:05 a.m.-9:00 p.m.

3 stops19h 25m

C$ 863

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 29/9

8:00 a.m.-11:21 p.m.

1 stop10h 51m

St John's

Fri 2/10

1:35 p.m.-9:04 p.m.

1 stop11h 59m

C$ 995

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 8/9

7:00 a.m.-12:55 a.m.

3 stops13h 25m

St John's

Sun 13/9

4:00 p.m.-9:40 a.m.

3 stops22h 10m

C$ 1,038

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 3/12

10:40 p.m.-1:36 a.m.

2 stops22h 26m

St John's

Sat 5/12

5:15 a.m.-8:10 p.m.

3 stops19h 25m

C$ 1,114
Quickest round-trip

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 3/12

7:45 a.m.-11:16 p.m.

1 stop11h 01m

St John's

Wed 9/12

2:20 p.m.-8:59 p.m.

1 stop11h 09m

C$ 1,149

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Wed 2/12

7:45 a.m.-11:16 p.m.

1 stop11h 01m

St John's

Sat 5/12

2:20 p.m.-8:59 p.m.

1 stop11h 09m

C$ 1,149

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 3/12

7:45 a.m.-11:16 p.m.

1 stop11h 01m

St John's

Sun 6/12

2:20 p.m.-8:59 p.m.

1 stop11h 09m

C$ 1,149

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from Seattle to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Seattle to St. John's. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to St. John's?

    A quick flight from Seattle to St. John's can take about 18h 30m. WestJet provides one of the quickest options available for as low as C$ 656. Airlines will cover a distance of 5034 km.

  • Can I find deals for flights from Seattle to St. John's that include hotel bookings?

    Yes. In addition to deals on Seattle to St. John's flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to St. John's?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to St. John's.

  • Can I find deals for business class flights from Seattle to St. John's?

    Yes. Cheapflights offers flight deals from Seattle to St. John's by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to St. John's by adding a car rental and/or hotel reservation to your travel itinerary.
St. John's car rentals
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Stephenville car rentals

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to St. John's?

Deals for Seattle to St. John's flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to St. John's?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to St. John's for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to St. John's with no change fees?

Certainly. Search results for flights to St. John's from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to St. John's become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to St. John's on Cheapflights with our Price Alert feature and get notified when better prices are available.

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