What is the cheapest airline that flies from Seattle/Tacoma Intl to St John's?

WestJet and Air Canada are the most popular carriers operating from Seattle/Tacoma Intl to St John's

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to St John's Airport?

Prices for flights from Seattle/Tacoma Intl Airport to St John's Airport are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to St John's Airport?

There is 1 operator available for flights from Seattle/Tacoma Intl Airport to St John's Airport as of August 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to St John's Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to St John's Airport.

What documentation or ID do you need to fly to St John's Airport?

The travel and health documents you'll need for your trip to St John's Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at St John's Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$225 Cheap Flights from Seattle to St. John's in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to St. John's

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:30 am - 6:45 am-

15h 45m

9:20 am - 9:00 pm-

16h 10m

$511WestJet

Sat, Aug 29 - Sat, Sep 5

10:30 am - 8:25 am-

17h 25m

9:20 am - 6:45 pm-

13h 55m

$513WestJet

Sat, Aug 29 - Sat, Sep 5

7:35 pm - 10:55 pm-

22h 50m

3:00 pm - 9:40 am-

23h 10m

$518WestJet

Thu, Sep 24 - Mon, Sep 28

7:35 pm - 10:55 pm-

22h 50m

7:35 am - 9:40 am-

30h 35m

$518WestJet

Mon, Sep 21 - Sun, Sep 27

7:35 pm - 10:55 pm-

22h 50m

3:00 pm - 9:40 am-

23h 10m

$519WestJet

Thu, Sep 24 - Mon, Sep 28

7:35 pm - 10:55 pm-

22h 50m

7:35 am - 9:40 am-

30h 35m

$519WestJet

Mon, Sep 21 - Sun, Sep 27

7:35 pm - 10:55 pm-

22h 50m

3:00 pm - 9:40 am-

23h 10m

$519WestJet

Mon, Sep 21 - Sun, Sep 27

7:35 pm - 10:55 pm-

22h 50m

3:00 pm - 9:40 am-

23h 10m

$520WestJet

Mon, Sep 21 - Sun, Sep 27

8:00 am - 11:21 pm-

10h 51m

1:35 pm - 9:04 pm-

11h 59m

$736Air Canada

Tue, Sep 15 - Thu, Sep 17

8:00 am - 11:21 pm-

10h 51m

5:00 am - 9:04 pm-

20h 34m

$760Air Canada

Mon, Sep 21 - Sun, Sep 27

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WestJet flights from Seattle to St. John's

Our best WestJet deals on Seattle to St. John's flight tickets

WestJet

Sep 21

SEA7:35 pmSeattle/Tacoma Intl

22h 50m

2 stops

YYT10:55 pmSt John's

Sep 27

YYT7:35 amSt John's

30h 35m

1 stop

SEA9:40 amSeattle/Tacoma Intl

$518

WestJet

Sep 21

SEA7:35 pmSeattle/Tacoma Intl

22h 50m

2 stops

YYT10:55 pmSt John's

Sep 27

YYT3:00 pmSt John's

23h 10m

2 stops

SEA9:40 amSeattle/Tacoma Intl

$519

WestJet

Sep 21

SEA7:35 pmSeattle/Tacoma Intl

22h 50m

2 stops

YYT10:55 pmSt John's

Sep 27

YYT3:00 pmSt John's

23h 10m

2 stops

SEA9:40 amSeattle/Tacoma Intl

$520

United Airlines flights from Seattle to St. John's

Our best United Airlines deals on Seattle to St. John's flight tickets

United Airlines

Aug 5

SEA11:11 pmSeattle/Tacoma Intl

15h 19m

2 stops

YYT7:00 pmSt John's

Aug 19

YYT8:30 amSt John's

16h 45m

2 stops

SEA8:45 pmSeattle/Tacoma Intl

$2,385

United Airlines

Aug 5

SEA11:20 pmSeattle/Tacoma Intl

12h 41m

2 stops

YYT4:31 pmSt John's

Aug 19

YYT5:35 amSt John's

19h 40m

2 stops

SEA8:45 pmSeattle/Tacoma Intl

$2,471

United Airlines

Aug 5

SEA11:11 pmSeattle/Tacoma Intl

12h 50m

2 stops

YYT4:31 pmSt John's

Aug 19

YYT8:30 amSt John's

15h 07m

2 stops

SEA7:07 pmSeattle/Tacoma Intl

$2,476

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sat 8/29

10:30 am-6:45 am

1 stop15h 45m

St John's

Sat 9/5

9:20 am-9:00 pm

2 stops16h 10m

$511

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sat 8/29

10:30 am-8:25 am

2 stops17h 25m

St John's

Sat 9/5

9:20 am-6:45 pm

2 stops13h 55m

$513

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 9/24

7:35 pm-10:55 pm

2 stops22h 50m

St John's

Mon 9/28

3:00 pm-9:40 am

2 stops23h 10m

$518

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Mon 9/21

7:35 pm-10:55 pm

2 stops22h 50m

St John's

Sun 9/27

7:35 am-9:40 am

1 stop30h 35m

$518

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 9/24

7:35 pm-10:55 pm

2 stops22h 50m

St John's

Mon 9/28

3:00 pm-9:40 am

2 stops23h 10m

$519

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Mon 9/21

7:35 pm-10:55 pm

2 stops22h 50m

St John's

Sun 9/27

7:35 am-9:40 am

1 stop30h 35m

$519

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Mon 9/21

7:35 pm-10:55 pm

2 stops22h 50m

St John's

Sun 9/27

3:00 pm-9:40 am

2 stops23h 10m

$519

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Mon 9/21

7:35 pm-10:55 pm

2 stops22h 50m

St John's

Sun 9/27

3:00 pm-9:40 am

2 stops23h 10m

$520

Quickest round-trip

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Tue 9/15

8:00 am-11:21 pm

1 stop10h 51m

St John's

Thu 9/17

1:35 pm-9:04 pm

1 stop11h 59m

$736

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Mon 9/21

8:00 am-11:21 pm

1 stop10h 51m

St John's

Sun 9/27

5:00 am-9:04 pm

1 stop20h 34m

$760

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to St. John's

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Seattle to St. John's flights?

You could potentially save up to 52% on your flight if you consider stops on a Seattle to St. John's flight.

When to book flights from Seattle to St. John's

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to St. John's according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to St. John's (SEA to YYT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to St. John's

Fastest flight time	15h 45m
Direct flights	None

The fastest flight from Seattle to St. John's takes 15h 45m

There are no direct flights from Seattle to St. John's. There are no popular flight routes from Seattle to St. John's.

Search flight deals

Frequently asked questions about flying from Seattle to St. John's

How far is Seattle/Tacoma Intl to St John's by plane?
Seattle/Tacoma Intl and St John's are 3127.4 mi apart from one another. By plane, this route typically takes 15h 45m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to St John's Airport?
Prices for flights from Seattle/Tacoma Intl Airport to St John's Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to St John's Airport?
There is 1 operator available for flights from Seattle/Tacoma Intl Airport to St John's Airport as of August 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to St John's Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to St John's Airport.
What documentation or ID do you need to fly to St John's Airport?
The travel and health documents you'll need for your trip to St John's Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at St John's Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to St. John's?
Based on momondo bookings for flights between Seattle and St. John's, the leading airline is Air Canada, making up 100% of the total bookings.

Best airlines flying from Seattle to St. John's

Compare and see reviews for airlines that fly from Seattle to St. John's with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $225	Free Cancellation	Rating 7.1 11,425 reviews		Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to St. John's?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to St. John's. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to St. John's with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. John's from Seattle with this policy.

How can momondo help me find flights from Seattle to St. John's?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. John's from Seattle.

I’m not ready to book a flight from Seattle to St. John's right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. John's from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.