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Cheap flights from Seattle to St. John's from C$ 300

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYT
8 Jul — 15 Jul1
1 adult

Cheap 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 3 July 2025.

Round-trip from

C$ 564

One-way from

C$ 300

Popular in

April

Cheapest in

May

Average price

C$ 887
WestJet
  • WestJet
  • 22/9-26/9
  • 2 total stops
  • 36h 34m total
  • Seattle to St. John's
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WestJet
  • WestJet
  • 12/8
  • 1 total stop
  • 30h 15m total
  • Seattle to St. John's
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to St. John's

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 3 July 2025.

Mon 22/97:05 a.m.SEA - YYT
1 stop18h 45mWestJet
Fri 26/97:10 a.m.YYT - SEA
1 stop17h 49mWestJet
Deal found 2/7C$ 564
Sat 20/97:15 a.m.SEA - YYT
2 stops10h 38mAir Canada
Sat 27/92:00 p.m.YYT - SEA
1 stop10h 01mAir Canada
Deal found 2/7C$ 570

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 3 July 2025.
Use the filters below to find and compare flights from Seattle to St. John's that are best for you.

Fly from

Seattle

Fly to

St. John's

Route

Depart

Return

Price

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Mon 22/9

7:05 a.m.-6:20 a.m.

1 stop18h 45m

St John's

Fri 26/9

7:10 a.m.-8:29 p.m.

1 stop17h 49m

C$ 564

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sat 20/9

7:15 a.m.-10:23 p.m.

2 stops10h 38m

St John's

Sat 27/9

2:00 p.m.-7:31 p.m.

1 stop10h 01m

C$ 570

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 12/8

7:35 p.m.-6:20 a.m.

1 stop30h 15m

C$ 300

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 12/8

2:05 p.m.-2:16 p.m.

3 stops19h 41m

C$ 334

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Fri 15/8

12:05 p.m.-2:03 p.m.

2 stops21h 28m

C$ 339

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 14/8

12:20 a.m.-5:12 p.m.

2 stops12h 22m

C$ 379

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/6

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to St. John's

What is the cheapest month to book a flight from Seattle to St. John's?

Currently, May is the cheapest month in which you can book a flight from Seattle to St. John's (average of C$ 221). Flying from Seattle to St. John's in December is currently the most expensive (average of C$ 382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing St. John's

Get insights into the airlines that provide service to St. John's. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. John's. Reviews last updated 3 July 2025.
See what other customers who have flown with United Airlines,WestJet, andAir Canada from Seattle to St. John's have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,861 reviews
Check prices

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,861 reviews
United Airlines
7.4
Good
8,861 reviews
Check prices

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,917 reviews
United Airlines
7.4
Good
8,861 reviews
Check prices

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,681 reviews
United Airlines
7.4
Good
8,861 reviews
Check prices

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What are the cheapest airlines flying from Seattle to St. John's round-trip?

    Cheapflights users have booked flights from Seattle to St. John's round-trip from C$ 564. Another airline that can offer you cheap pricing is Air Canada. WestJet is currently priced 33% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to St. John's one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 300. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Seattle to St. John's for a low price.

  • 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.

  • What is the cheapest month to book a flight from Seattle to St. John's?

    Currently, May is the cheapest month in which you can book a flight from Seattle to St. John's (average of C$ 221). Flying from Seattle to St. John's in December is currently the most expensive (average of C$ 382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.
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Wabush car rentals

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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.

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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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