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Cheap flights from Seattle to St. John's from C$ 350

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYT
31 mars — 7 avr.1
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 26 mars 2025.

Round-trip from

C$ 506

One-way from

C$ 350

Popular in

April

Cheapest in

November

Average price

C$ 862
WestJet
  • WestJet
  • 18/7-25/7
  • 3 total stops
  • 21h 38m total
  • Seattle to St. John's
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9/5
  • 9/5
  • 3 total stops
  • 36h 54m total
  • Seattle to St. John's
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 99 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 30 potential savings vs. average RT price).
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Average for round-trip flights in March 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 26 mars 2025.

ven. 18/77:05 a.m.SEA - YYT
2 stops11h 20mWestJet
ven. 25/77:10 a.m.YYT - SEA
1 stop10h 18mWestJet
Deal found 25/3C$ 506
sam. 24/57:05 a.m.SEA - YYT
3 stops34h 11mMultiple Airlines
mer. 28/57:10 a.m.YYT - SEA
3 stops21h 30mMultiple Airlines
Deal found 25/3C$ 684
jeu. 15/57:00 a.m.SEA - YYT
2 stops25h 19mUnited Airlines
lun. 19/55:45 a.m.YYT - SEA
2 stops20h 16mUnited Airlines
Deal found 25/3C$ 895
jeu. 1/55:40 a.m.SEA - YYT
2 stops14h 27mAir Canada
jeu. 8/58:45 a.m.YYT - SEA
2 stops15h 22mAir Canada
Deal found 26/3C$ 973

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 26 mars 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

ven. 18/7

7:05 a.m.-10:55 p.m.

2 stops11h 20m

St John's

ven. 25/7

7:10 a.m.-12:58 p.m.

1 stop10h 18m

C$ 506

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

sam. 24/5

7:05 a.m.-9:46 p.m.

3 stops34h 11m

St John's

mer. 28/5

7:10 a.m.-12:10 a.m.

3 stops21h 30m

C$ 684

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

jeu. 15/5

7:00 a.m.-12:49 p.m.

2 stops25h 19m

St John's

lun. 19/5

5:45 a.m.-9:31 p.m.

2 stops20h 16m

C$ 895

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

jeu. 1/5

5:40 a.m.-12:37 a.m.

2 stops14h 27m

St John's

jeu. 8/5

8:45 a.m.-7:37 p.m.

2 stops15h 22m

C$ 973

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

ven. 9/5

6:50 p.m.-12:14 p.m.

3 stops36h 54m

C$ 350

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

ven. 9/5

7:20 a.m.-12:37 a.m.

1 stop12h 47m

C$ 636

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/3

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.

Rainfall in St. John's by month

Plan your trip to St. John's by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. John's ranges from 92.0 - 165.0 mm per month. December is typically the wettest month, when rainfall can reach 165.0 mm. July is typically the driest time to visit St. John's when rainfall is around 92.0 mm.

Temperature in St. John's by month

Plan your trip to St. John's by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. John's, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -5.0 C).

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 26 mars 2025.
United Airlines
7.4
Good
8,608 reviews
Check prices

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.0

Crew

8.1

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
8,608 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.0

Crew

8.1

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
2,785 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.0

Crew

8.1

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
7.0
Good
8,967 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.0

Crew

8.1

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$ 506. Other airlines that can offer you cheap pricing are United Airlines, from C$ 895, and Air Canada, from C$ 973. WestJet is currently priced 46% below the average price you’ll pay for this route.

  • 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.
St. John's car rentals
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Gander car rentals
Happy Valley-Goose Bay car rentals
Wabush car rentals

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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.

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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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