How long is the flight from Seattle to Saint John?

Air Canada can get you from Seattle to Saint John in just under 27h 35m. Your travel time can differ by up to . The distance from Seattle to Saint John is about 2631 mi.

In terms of precipitation, rainfall in Saint John ranges from 3.2 - 5.3 inches per month. November is typically the wettest month, when rainfall can reach 5.3 in. August is typically the driest time to visit Saint John when rainfall is around 3.2 in.

If weather is an important factor for your trip to Saint John, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Saint John as you normally would.

Most accurate provider : When it comes to deals on Seattle-Saint John flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Saint John flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Saint John flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Saint John flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Saint John flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Seattle to St John that include hotel bookings?

Yes. In addition to deals on Seattle to St John flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to St John?

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.

Can I find deals for business class flights from Seattle to St John?

Yes. Cheapflights offers flight deals from Seattle to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$836+ Flights from Seattle to Saint John

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Cheap flight deals from Seattle to St John

Cheapest flights from Seattle to St John
Explore the most affordable flight options available from Seattle to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Fri 3/138:00 am

SEA

YSJ

2 stops27h 35m

Air Canada

Fri 3/204:15 pm

YSJ

SEA

2 stops26h 46m

Air Canada

Deal found 1/27

$836

Mon 8/317:20 pm

SEA

YSJ

2 stops12h 05m

Air Canada

Thu 9/35:40 am

YSJ

SEA

2 stops12h 42m

Air Canada

Deal found 1/25

$1,142

Best flights from Seattle to St John
Discover carefully curated flight deals from Seattle to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 27, 2026.

Fri 3/138:00 am

SEA

YSJ

2 stops27h 35m

Air Canada

Fri 3/204:15 pm

YSJ

SEA

2 stops26h 46m

Air Canada

Deal found 1/27

$836

Find flight deals from Seattle to St John

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$836 (Air Canada)

Provider with most accurate pricing for Seattle/Tacoma Intl-Saint John flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Saint John flights.

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From Seattle/Tacoma Intl to Saint John

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Fly from

Fly to

Route

Depart

Return

Price

SeattleSaint John

SEA - YSJ

SEAYSJ

Seattle/Tacoma Intl

Fri 3/13

8:00 am-3:35 pm

2 stops27h 35m

Saint John

Fri 3/20

4:15 pm-3:01 pm

2 stops26h 46m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Most accurate provider: When it comes to deals on Seattle-Saint John flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Saint John flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Saint John flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Saint John flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Saint John flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to St John

Have a flexible travel schedule? Discover the best time to fly to St John 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.

Related info for your journey

How long is the flight from Seattle to Saint John?
Air Canada can get you from Seattle to Saint John in just under 27h 35m. Your travel time can differ by up to . The distance from Seattle to Saint John is about 2631 mi.
Can I find deals for flights from Seattle to St John that include hotel bookings?
Yes. In addition to deals on Seattle to St John flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to St John?
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.
Can I find deals for business class flights from Seattle to St John?
Yes. Cheapflights offers flight deals from Seattle to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$836+ Cheap flights from Seattle (SEA) to Saint John (YSJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to St John with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to St John

Cheapest flights from Seattle to St JohnExplore the most affordable flight options available from Seattle to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Explore the most affordable flight options available from Seattle to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Find flight deals from Seattle to St John

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Round-trip from

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Use the filters below to find and compare flights from Seattle to Saint John that are best for you.

Best time to book a flight from Seattle to St John

Have a flexible travel schedule? Discover the best time to fly to St John from Seattle with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Seattle to St John. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Seattle to Saint John?

Can I find deals for flights from Seattle to St John that include hotel bookings?

How can I find direct flights from Seattle to St John?

Can I find deals for business class flights from Seattle to St John?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to St John

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Cheapest flights from Seattle to St John
Explore the most affordable flight options available from Seattle to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.