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Cheap flights from Seattle to Saint John from $477

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Saint John departing on 12/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:50 am - 11:10 amSEA-YSJ
25h 20m2 stops
Air Canada Logo
6:15 pm - 9:33 amYSJ-SEA
19h 18m2 stops
$795Air Canada
Find Deal
Wed, Apr 1 - Sun, Apr 5
Air Canada Logo
5:50 am - 11:10 amSEA-YSJ
25h 20m2 stops
Air Canada Logo
5:40 am - 10:08 pmYSJ-SEA
20h 28m2 stops
$796Air Canada
Find Deal
Wed, Apr 1 - Sun, Apr 5
Air Canada Logo
5:50 am - 11:10 amSEA-YSJ
25h 20m2 stops
Air Canada Logo
5:40 am - 3:03 pmYSJ-SEA
13h 23m2 stops
$914Air Canada
Find Deal
Wed, Apr 1 - Sun, Apr 5
Air Canada Logo
8:00 am - 11:29 pmSEA-YSJ
11h 29m1 stop
Air Canada Logo
6:15 pm - 9:33 amYSJ-SEA
19h 18m2 stops
$969Air Canada
Find Deal
Wed, Apr 1 - Sun, Apr 5
Air Canada Logo
8:00 am - 11:29 pmSEA-YSJ
11h 29m1 stop
Air Canada Logo
5:40 am - 10:08 pmYSJ-SEA
20h 28m2 stops
$973Air Canada
Find Deal
Wed, Apr 1 - Sun, Apr 5
Air Canada Logo
8:00 am - 11:29 pmSEA-YSJ
11h 29m1 stop
Air Canada Logo
5:40 am - 3:03 pmYSJ-SEA
13h 23m2 stops
$1,032Air Canada
Find Deal
Wed, Apr 1 - Sun, Apr 5

Air Canada flights from Seattle to Saint John

Our best Air Canada deals on Seattle to Saint John flight tickets
Air Canada
Apr 1
SEA5:50 amSeattle/Tacoma Intl
25h 20m
2 stops
YSJ11:10 amSaint John
Apr 5
YSJ6:15 pmSaint John
19h 18m
2 stops
SEA9:33 amSeattle/Tacoma Intl
$795
Find similar
Air Canada
Apr 1
SEA5:50 amSeattle/Tacoma Intl
25h 20m
2 stops
YSJ11:10 amSaint John
Apr 5
YSJ5:40 amSaint John
20h 28m
2 stops
SEA10:08 pmSeattle/Tacoma Intl
$796
Find similar
Air Canada
Apr 1
SEA5:50 amSeattle/Tacoma Intl
25h 20m
2 stops
YSJ11:10 amSaint John
Apr 5
YSJ5:40 amSaint John
13h 23m
2 stops
SEA3:03 pmSeattle/Tacoma Intl
$914
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Saint John 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 832,500 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Seattle to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Wed 4/1

5:50 am-11:10 am

2 stops25h 20m

Saint John

Sun 4/5

6:15 pm-9:33 am

2 stops19h 18m

$795

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Wed 4/1

5:50 am-11:10 am

2 stops25h 20m

Saint John

Sun 4/5

5:40 am-10:08 pm

2 stops20h 28m

$796

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Wed 4/1

5:50 am-11:10 am

2 stops25h 20m

Saint John

Sun 4/5

5:40 am-3:03 pm

2 stops13h 23m

$914

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Wed 4/1

8:00 am-11:29 pm

1 stop11h 29m

Saint John

Sun 4/5

6:15 pm-9:33 am

2 stops19h 18m

$969

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Wed 4/1

8:00 am-11:29 pm

1 stop11h 29m

Saint John

Sun 4/5

5:40 am-10:08 pm

2 stops20h 28m

$973

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Wed 4/1

8:00 am-11:29 pm

1 stop11h 29m

Saint John

Sun 4/5

5:40 am-3:03 pm

2 stops13h 23m

$1,032

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 12/26

8:10 am-11:29 pm

1 stop11h 19m

$477

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 12/26

8:10 am-3:33 pm

2 stops27h 23m

$501

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 12/26

1:35 pm-10:39 am

3 stops41h 04m

$746

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint John from

How to get the cheapest flight ticket from Seattle to Saint John

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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Saint John?

Air Canada and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Saint John

When to book flights from Seattle to Saint John

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Saint John according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Saint John (SEA to YSJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Saint John

Direct flights

None
There are no direct flights from Seattle to Saint John. There are no popular flight routes from Seattle to Saint John.
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  • How far is Seattle/Tacoma Intl to Saint John by plane?

    Saint John is 2622.7 mi away from Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 11h 29m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Saint John Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Saint John Airport are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Saint John 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 Saint John Airport.

  • What documentation or ID do you need to fly to Saint John Airport?

    The travel and health documents you'll need for your trip to Saint John 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 Saint John Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Saint John?

Book flights to Saint John if you plan to visit one of these locations
Bridgetown

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Saint John?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint John from Seattle.

Can I find flights from Seattle to Saint John with flexible booking policies on momondo?

Flights from Seattle to Saint John with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Saint John?

momondo provides multiple filters to help you find the best flight to Saint John from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Saint John 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.

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