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St. John's

$172+ Cheap flights from Seattle (SEA) to St. John's (YYT)

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYT
Jul 13 — Jul 201
Sun 7/13
Sun 7/20
1 adult, Economy
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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 July 8, 2025.

Round-trip from

$453
(FlightHub)

One-way from

$172
(Air Canada)

Popular in

April

Cheapest in

May

Average price

$651
From Seattle/Tacoma Intl to St John's
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One-way flight from Seattle/Tacoma Intl 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. 2% potential price decrease ($19 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 July 8, 2025.

This Trip.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:35 pmSEA - YYT
1 stop30h 15mWestJet
Sat 8/307:40 pmYYT - SEA
1 stop21h 48mWestJet
Deal found 7/8$420
This deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3012:05 pmSEA - YYT
1 stop8h 56mAir Canada
Sat 9/62:00 pmYYT - SEA
1 stop10h 01mAir Canada
Deal found 7/8$438
This Mytrip deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:35 pmSEA - YYT
3 stops24h 23mMultiple Airlines
Sat 8/306:50 amYYT - SEA
2 stops17h 01mMultiple Airlines
Deal found 7/8$531
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1212:20 amSEA - YYT
2 stops12h 22mUnited Airlines
Wed 10/291:30 pmYYT - SEA
1 stop12h 56mUnited Airlines
Deal found 7/7$581

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 2,558,603 searches. Data last updated July 8, 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

Tue 8/26

7:35 pm-6:20 am

1 stop30h 15m

St John's

Sat 8/30

7:40 pm-12:58 pm

1 stop21h 48m

$420

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sat 8/30

12:05 pm-1:31 am

1 stop8h 56m

St John's

Sat 9/6

2:00 pm-7:31 pm

1 stop10h 01m

$438

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 8/26

7:35 pm-12:28 am

3 stops24h 23m

St John's

Sat 8/30

6:50 am-7:21 pm

2 stops17h 01m

$531

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 8/12

12:20 am-5:12 pm

2 stops12h 22m

St John's

Wed 10/29

1:30 pm-9:56 pm

1 stop12h 56m

$581

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Wed 9/17

7:15 pm-2:03 pm

2 stops14h 18m

$172

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Wed 9/17

1:50 pm-10:56 pm

2 stops28h 36m

$195

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Wed 9/17

1:50 pm-9:48 pm

3 stops27h 28m

$209

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 8/14

12:20 am-5:12 pm

2 stops12h 22m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

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, January is the cheapest month in which you can book a flight from Seattle to St. John's (average of $464). Flying from Seattle to St. John's in December is currently the most expensive (average of $641). 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.

What is the cheapest time of day to fly from SEA to YYT?

Find hourly flight availability from Seattle to St. John's. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 8, 2025.

One of the essential ways to save on airfare from Seattle to St. John's is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 41% on airfare.

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 July 8, 2025.
Get a feel of what it's like to fly with United Airlines, WestJet, and Air Canada from Seattle to St. John's by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,844 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

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
8,844 reviews
United Airlines
7.4
Good
8,844 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

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
2,920 reviews
United Airlines
7.4
Good
8,844 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

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
9,680 reviews
United Airlines
7.4
Good
8,844 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

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?

    Currently priced at $453, WestJet will fly you from Seattle to St. John's and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $457 and $581, respectively. You may be able to fly from Seattle to St. John's for 27% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $172. Users have also found prices from $195 and $278 on WestJet and United Airlines, respectively.

  • 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, January is the cheapest month in which you can book a flight from Seattle to St. John's (average of $464). Flying from Seattle to St. John's in December is currently the most expensive (average of $641). 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

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Alternative routes for Seattle to St. John's

See prices for flight routes from nearby airports that may be better suited for you.
Portland to St. John's flights

Top 3 airlines flying from Seattle to St. John's

Discover the top 3 airlines that operate flights from Seattle to St. John's. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$366Average$543FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$371Average$637FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$392Average$592FlexibilityNo cancel feeOn-time67%

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