$582+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSJ
Jan 27 — Feb 31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Francisco to St John with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to St John
Cheapest flights from San Francisco to St JohnExplore 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 December 28, 2025.
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 December 28, 2025.
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/284:55 pmSFO - YSJ
2 stops18h 38mUnited Airlines
Sun 1/45:40 amYSJ - SFO
2 stops19h 49mUnited Airlines
Deal found 12/25![United Airlines logo]()
$1,696
This Air Canada deal was found by Cheapflights users on 12/25. 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.
Sun 12/288:49 amSFO - YSJ
1 stop21h 50mAir Canada
Sun 1/44:15 pmYSJ - SFO
1 stop9h 07mAir Canada
Deal found 12/25![Air Canada logo]()
$2,631
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 December 28, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $582 (Air Canada) |
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 December 28, 2025.
Use the filters below to find and compare flights from San Francisco to Saint John that are best for you.
Fly from
San Francisco
Fly to
St John
Route
Depart
Return
Price
San FranciscoSaint John
SFO - YSJ
SFOYSJ
San Francisco
Sun 4/19
7:30 am-11:52 pm
2 stops12h 22m
Saint John
Wed 4/22
5:35 am-10:45 am
1 stop9h 10m
$582
San FranciscoSaint John
SFO - YSJ
SFOYSJ
San Francisco
Tue 3/17
8:30 am-11:29 pm
1 stop10h 59m
Saint John
Tue 3/24
4:15 pm-9:22 pm
1 stop9h 07m
$598
San FranciscoSaint John
SFO - YSJ
SFOYSJ
San Francisco
Sun 4/19
11:52 pm-11:52 pm
2 stops20h 00m
Saint John
Wed 4/22
5:35 am-9:34 pm
3 stops19h 59m
$672
Compare providers for flights from San Francisco to St John
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to St John in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Francisco-Saint John flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Saint John flight deals on Cheapflights vs. eDreams >95% 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 eDreams the most. eDreams 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.