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St John

$621+ Cheap flights from San Francisco (SFO) 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSJ
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Cheap flight deals from San Francisco to St John

Cheapest flights from San Francisco to St John
Explore the most affordable flight options available from San Francisco to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This Air Canada deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:35 am
SFO
-
YSJ
1 stop8h 16m
Air Canada
Mon 10/264:20 pm
YSJ
-
SFO
1 stop9h 02m
Air Canada
Deal found 4/19$621
This Air Canada deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:30 pm
SFO
-
YSJ
2 stops15h 25m
Air Canada
Sat 9/55:00 am
YSJ
-
SFO
1 stop11h 32m
Air Canada
Deal found 4/22$646
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
SFO
-
YSJ
2 stops29h 45m
Multiple Airlines
Wed 5/2710:45 am
YSJ
-
SFO
1 stop29h 38m
Multiple Airlines
Deal found 4/23$657
This Air Canada deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:05 am
SFO
-
YSJ
1 stop27h 35m
Air Canada
Wed 5/275:35 am
YSJ
-
SFO
1 stop11h 05m
Air Canada
Deal found 4/23$682
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:47 pm
SFO
-
YSJ
1 stop8h 40m
United Airlines
Sun 6/145:35 am
YSJ
-
SFO
1 stop9h 15m
United Airlines
Deal found 4/23$988

Find flight deals from San Francisco to St John

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to St John (YSJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$646
(Air Canada)
Provider with most accurate pricing for San Francisco-Saint John flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Saint John flights.
Search Deals
From San Francisco to Saint John
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to St 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, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
Use the filters below to find and compare flights from San Francisco to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Tue 5/12

6:00 am-3:45 pm

2 stops29h 45m

Saint John

Wed 5/27

10:45 am-12:23 pm

1 stop29h 38m

$657
Quickest round-trip

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Sun 6/7

10:47 pm-11:27 am

1 stop8h 40m

Saint John

Sun 6/14

5:35 am-10:50 am

1 stop9h 15m

$988

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Francisco-Saint John flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Francisco-Saint John flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Francisco-Saint John flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Saint John flights, Cheapflights users trust Expedia the most. Expedia 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 San Francisco-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 San Francisco to St John

Have a flexible travel schedule? Discover the best time to fly to St John from San Francisco 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

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Saint John?

    For as low as $988, United Airlines can have you in Saint John from San Francisco in 8h 40m. There are 2909 mi between San Francisco and Saint John.

  • Can I find deals for flights from San Francisco to St John that include hotel bookings?

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

  • How can I find direct flights from San Francisco to St John?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to St John.

  • Can I find deals for business class flights from San Francisco to St John?

    Yes. Cheapflights offers flight deals from San Francisco 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.

See more FAQs

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