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.

$478 Cheap Flights from Seattle to Saint John in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Saint John

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 am - 3:40 pm

SEA

YSJ

27h 30m2 stops

4:15 pm - 10:16 pm

YSJ

SEA

34h 01m2 stops

$858Air Canada

Fri, Feb 13 - Fri, Feb 20

8:10 am - 11:29 pm

SEA

YSJ

11h 19m1 stop

4:15 pm - 10:16 pm

YSJ

SEA

34h 01m2 stops

$945Air Canada

Fri, Feb 13 - Fri, Feb 20

12:25 pm - 3:40 pm

SEA

YSJ

23h 15m3 stops

4:15 pm - 11:30 pm

YSJ

SEA

35h 15m2 stops

$1,135United Airlines

Fri, Feb 13 - Fri, Feb 20

8:10 am - 11:29 pm

SEA

YSJ

11h 19m1 stop

5:40 am - 10:16 pm

YSJ

SEA

20h 36m1 stop

$1,218Air Canada

Fri, Feb 13 - Fri, Feb 20

Air Canada flights from Seattle to Saint John

Our best Air Canada deals on Seattle to Saint John flight tickets

Air Canada

Feb 13

SEA8:10 amSeattle/Tacoma Intl

27h 30m

2 stops

YSJ3:40 pmSaint John

Feb 20

YSJ4:15 pmSaint John

34h 01m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

$858

Find similar

Air Canada

Feb 13

SEA8:10 amSeattle/Tacoma Intl

11h 19m

1 stop

YSJ11:29 pmSaint John

Feb 20

YSJ4:15 pmSaint John

34h 01m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

$945

Find similar

Air Canada

Feb 13

SEA8:10 amSeattle/Tacoma Intl

11h 19m

1 stop

YSJ11:29 pmSaint John

Feb 20

YSJ5:40 amSaint John

20h 36m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$1,218

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

8:10 am-3:40 pm

2 stops27h 30m

Saint John

Fri 2/20

4:15 pm-10:16 pm

2 stops34h 01m

$858

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

8:10 am-11:29 pm

1 stop11h 19m

Saint John

Fri 2/20

4:15 pm-10:16 pm

2 stops34h 01m

$945

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

12:25 pm-3:40 pm

3 stops23h 15m

Saint John

Fri 2/20

4:15 pm-11:30 pm

2 stops35h 15m

$1,135

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

8:10 am-11:29 pm

1 stop11h 19m

Saint John

Fri 2/20

5:40 am-10:16 pm

1 stop20h 36m

$1,218

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

8:10 am-3:40 pm

2 stops27h 30m

$478

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

8:10 am-11:29 pm

1 stop11h 19m

$521

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 2/13

12:25 pm-3:40 pm

3 stops23h 15m

$645

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Fastest flight time	11h 41m
Direct flights	None

The fastest flight from Seattle to Saint John takes 11h 41m

There are no direct flights from Seattle to Saint John. There are no popular flight routes from Seattle to Saint John.

Search flight deals

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 41m.
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.

Bridgetown

Middleton

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.