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St John

$669+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSJ
Jun 26 — Jul 31
Fri 6/26
Fri 7/3
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 May 27, 2026.

This Air Canada deal was found by Cheapflights users on 5/22. 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 9/1511:35 am
SFO
-
YSJ
1 stop8h 16m
Air Canada
Tue 9/295:40 am
YSJ
-
SFO
1 stop8h 59m
Air Canada
Deal found 5/22$669
This Air Canada deal was found by Cheapflights users on 5/26. 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.
Mon 9/78:30 am
SFO
-
YSJ
1 stop12h 55m
Air Canada
Wed 9/95:40 am
YSJ
-
SFO
1 stop10h 54m
Air Canada
Deal found 5/26$693
This Air Canada deal was found by Cheapflights users on 5/24. 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 7/711:40 am
SFO
-
YSJ
1 stop8h 10m
Air Canada
Tue 7/145:00 am
YSJ
-
SFO
1 stop9h 45m
Air Canada
Deal found 5/24$699
This Air Canada deal was found by Cheapflights users on 5/26. 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.
Mon 8/314:30 pm
SFO
-
YSJ
1 stop15h 25m
Air Canada
Wed 9/25:00 am
YSJ
-
SFO
1 stop9h 42m
Air Canada
Deal found 5/26$723
This Air Canada deal was found by Cheapflights users on 5/27. 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 6/301:25 pm
SFO
-
YSJ
1 stop30h 25m
Air Canada
Tue 7/74:40 pm
YSJ
-
SFO
2 stops22h 05m
Air Canada
Deal found 5/27$756
This United Airlines deal was found by Cheapflights users on 5/26. 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.
Mon 9/76:38 pm
SFO
-
YSJ
2 stops17h 11m
United Airlines
Wed 9/95:40 am
YSJ
-
SFO
1 stop8h 59m
United Airlines
Deal found 5/26$791
This United Airlines deal was found by Cheapflights users on 5/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:35 am
SFO
-
YSJ
2 stops11h 14m
United Airlines
Tue 9/294:30 pm
YSJ
-
SFO
2 stops12h 00m
United Airlines
Deal found 5/22$802

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 May 27, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$669
(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 May 27, 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
Quickest round-trip

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Tue 9/15

11:35 am-11:51 pm

1 stop8h 16m

Saint John

Tue 9/29

5:40 am-10:39 am

1 stop8h 59m

$669

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Mon 9/7

8:30 am-1:25 am

1 stop12h 55m

Saint John

Wed 9/9

5:40 am-12:34 pm

1 stop10h 54m

$693

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Tue 7/7

11:40 am-11:50 pm

1 stop8h 10m

Saint John

Tue 7/14

5:00 am-10:45 am

1 stop9h 45m

$699

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Mon 8/31

4:30 pm-11:55 am

1 stop15h 25m

Saint John

Wed 9/2

5:00 am-12:32 pm

1 stop11h 32m

$723

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Tue 6/30

1:25 pm-11:50 pm

1 stop30h 25m

Saint John

Tue 7/7

5:00 am-12:32 pm

1 stop11h 32m

$723

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/22

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 $669, Air Canada can have you in Saint John from San Francisco in 8h 16m. 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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