Cheap flights from Seattle to St. John's from C$ 433

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to St. John's departing on 15/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap round-trip flights

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WestJet Logo
10:30 a.m. - 6:45 a.m.
SEA
-
YYT
15h 45m
1 stop
WestJet Logo
7:35 a.m. - 9:40 a.m.
YYT
-
SEA
30h 35m
1 stop
C$ 433WestJet
Fri, 15 May - Fri, 29 May
WestJet Logo
7:35 p.m. - 6:45 a.m.
SEA
-
YYT
30h 40m
1 stop
WestJet Logo
3:00 p.m. - 6:45 p.m.
YYT
-
SEA
32h 15m
2 stops
C$ 468WestJet
Thu, 14 May - Thu, 28 May
WestJet Logo
10:30 a.m. - 6:45 a.m.
SEA
-
YYT
15h 45m
1 stop
WestJet Logo
3:00 p.m. - 9:40 a.m.
YYT
-
SEA
23h 10m
2 stops
C$ 617WestJet
Fri, 15 May - Fri, 29 May
Multiple Airlines Logo
7:59 a.m. - 10:55 p.m.
SEA
-
YYT
10h 26m
1 stop
Multiple Airlines Logo
7:35 a.m. - 9:40 a.m.
YYT
-
SEA
30h 35m
1 stop
C$ 652Multiple Airlines
Thu, 14 May - Thu, 28 May
Multiple Airlines Logo
7:59 a.m. - 10:55 p.m.
SEA
-
YYT
10h 26m
1 stop
Multiple Airlines Logo
3:00 p.m. - 6:45 p.m.
YYT
-
SEA
32h 15m
2 stops
C$ 655Multiple Airlines
Sat, 16 May - Sat, 30 May
Multiple Airlines Logo
10:30 a.m. - 6:45 a.m.
SEA
-
YYT
15h 45m
1 stop
Multiple Airlines Logo
8:55 a.m. - 9:40 a.m.
YYT
-
SEA
29h 15m
3 stops
C$ 730Multiple Airlines
Fri, 15 May - Fri, 29 May
Multiple Airlines Logo
7:35 p.m. - 6:45 a.m.
SEA
-
YYT
30h 40m
1 stop
Multiple Airlines Logo
4:00 p.m. - 9:40 a.m.
YYT
-
SEA
22h 10m
3 stops
C$ 765Multiple Airlines
Thu, 14 May - Thu, 28 May
WestJet Logo
7:35 p.m. - 10:55 p.m.
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
3:00 p.m. - 6:45 p.m.
YYT
-
SEA
32h 15m
2 stops
C$ 822WestJet
Sat, 16 May - Sat, 30 May
WestJet Logo
7:35 p.m. - 6:20 a.m.
SEA
-
YYT
30h 15m
1 stop
WestJet Logo
6:50 a.m. - 8:28 p.m.
YYT
-
SEA
18h 08m
2 stops
C$ 831WestJet
Fri, 3 Jul - Fri, 10 Jul
WestJet Logo
7:35 p.m. - 6:20 a.m.
SEA
-
YYT
30h 15m
1 stop
WestJet Logo
6:50 a.m. - 6:38 p.m.
YYT
-
SEA
16h 18m
2 stops
C$ 832WestJet
Fri, 3 Jul - Fri, 10 Jul

Air Canada flights from Seattle to St. John's

Our best Air Canada deals on Seattle to St. John's flight tickets
Air Canada
17 May
SEA5:40 a.m.Seattle/Tacoma Intl
13h 13m
2 stops
YYT11:23 p.m.St John's
31 May
YYT5:00 a.m.St John's
13h 50m
2 stops
SEA2:20 p.m.Seattle/Tacoma Intl
C$ 874
Air Canada
3 Apr
SEA5:40 a.m.Seattle/Tacoma Intl
14h 46m
2 stops
YYT12:56 a.m.St John's
18 Apr
YYT1:30 p.m.St John's
12h 53m
1 stop
SEA9:53 p.m.Seattle/Tacoma Intl
C$ 915
Air Canada
17 Mar
SEA5:40 a.m.Seattle/Tacoma Intl
13h 18m
2 stops
YYT11:28 p.m.St John's
24 Mar
YYT1:30 p.m.St John's
13h 16m
1 stop
SEA10:16 p.m.Seattle/Tacoma Intl
C$ 935

WestJet flights from Seattle to St. John's

Our best WestJet deals on Seattle to St. John's flight tickets
WestJet
15 May
SEA10:30 a.m.Seattle/Tacoma Intl
15h 45m
1 stop
YYT6:45 a.m.St John's
29 May
YYT7:35 a.m.St John's
30h 35m
1 stop
SEA9:40 a.m.Seattle/Tacoma Intl
C$ 433
WestJet
14 May
SEA7:35 p.m.Seattle/Tacoma Intl
30h 40m
1 stop
YYT6:45 a.m.St John's
28 May
YYT3:00 p.m.St John's
32h 15m
2 stops
SEA6:45 p.m.Seattle/Tacoma Intl
C$ 468
WestJet
15 May
SEA10:30 a.m.Seattle/Tacoma Intl
15h 45m
1 stop
YYT6:45 a.m.St John's
29 May
YYT3:00 p.m.St John's
23h 10m
2 stops
SEA9:40 a.m.Seattle/Tacoma Intl
C$ 617

momondo 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, momondo users made 96,600 searches. Data last updated 1 February 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

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Fri 15/5

10:30 a.m.-6:45 a.m.

1 stop15h 45m

St John's

Fri 29/5

7:35 a.m.-9:40 a.m.

1 stop30h 35m

C$ 433

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 14/5

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

1 stop30h 40m

St John's

Thu 28/5

3:00 p.m.-6:45 p.m.

2 stops32h 15m

C$ 468

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Fri 15/5

10:30 a.m.-6:45 a.m.

1 stop15h 45m

St John's

Fri 29/5

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

2 stops23h 10m

C$ 617

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 14/5

7:59 a.m.-10:55 p.m.

1 stop10h 26m

St John's

Thu 28/5

7:35 a.m.-9:40 a.m.

1 stop30h 35m

C$ 652

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sat 16/5

7:59 a.m.-10:55 p.m.

1 stop10h 26m

St John's

Sat 30/5

3:00 p.m.-6:45 p.m.

2 stops32h 15m

C$ 655

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Fri 15/5

10:30 a.m.-6:45 a.m.

1 stop15h 45m

St John's

Fri 29/5

8:55 a.m.-9:40 a.m.

3 stops29h 15m

C$ 730

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Thu 14/5

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

1 stop30h 40m

St John's

Thu 28/5

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

3 stops22h 10m

C$ 765

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Sat 16/5

7:35 p.m.-10:55 p.m.

2 stops22h 50m

St John's

Sat 30/5

3:00 p.m.-6:45 p.m.

2 stops32h 15m

C$ 822

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Fri 3/7

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

1 stop30h 15m

St John's

Fri 10/7

6:50 a.m.-8:28 p.m.

2 stops18h 08m

C$ 831

SeattleSt. John's

SEA - YYT

SEAYYT

Seattle/Tacoma Intl

Fri 3/7

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

1 stop30h 15m

St John's

Fri 10/7

6:50 a.m.-6:38 p.m.

2 stops16h 18m

C$ 832

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

10h 26m

Direct flights

None
The fastest flight from Seattle to St. John's takes 10h 26m
There are no direct flights from Seattle to St. John's. There are no popular flight routes from Seattle to St. John's.
  • How far is Seattle/Tacoma Intl to St John's by plane?

    The distance between Seattle/Tacoma Intl and St John's is about 5033.1 km. A reasonable flight in good conditions will take 10h 26m.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required for your trip to St John's Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at St John's Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Seattle to St. John's?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Seattle from St. John's. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Seattle to St. John's with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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. All flights to St. John's from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

If you are not ready to book a flight from Seattle to St. John's now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. John's and let you know when they change.

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1 adult
Tue 3/3
Tue 10/3

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