Find flights
When to book
FAQs

Cheap flights from Saint John to San Francisco from C$ 419

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — SFO
5 Sep — 12 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from St John to San Francisco
Explore the most affordable flight options available from St John to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 August 2026.

Mon 21/95:00 a.m. -
1 stop9h 44m
Thu 24/911:35 a.m. -
1 stop8h 16m
Deal found 3/8C$ 822
Mon 21/95:00 a.m. -
1 stop9h 44m
Fri 25/910:45 p.m. -
1 stop9h 11m
Deal found 1/8C$ 824
Sat 7/1111:05 a.m. -
2 stops17h 48m
Mon 23/115:00 a.m. -
2 stops14h 24m
Deal found 3/8C$ 937

Find flight deals from St John to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to San Francisco (SFO). 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 6 August 2026.

Round-trip from

C$ 822

One-way from

C$ 419
Air Canada
  • Air Canada
  • 21/9-24/9
  • 2 total stops
  • 18h 00m total
  • Saint John to San Francisco
Search Deals
2/9
  • 2/9
  • 1 total stop
  • 29h 30m total
  • Saint John to San Francisco
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St John to San Francisco 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 629,999 searches. Data last updated 6 August 2026.
Use the filters below to find and compare flights from Saint John to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Mon 21/9

5:00 a.m.-10:44 a.m.

1 stop9h 44m

San Francisco

Thu 24/9

11:35 a.m.-11:51 p.m.

1 stop8h 16m

C$ 822

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Mon 21/9

5:00 a.m.-10:44 a.m.

1 stop9h 44m

San Francisco

Fri 25/9

10:45 p.m.-11:56 a.m.

1 stop9h 11m

C$ 824

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Sat 7/11

11:05 a.m.-12:53 a.m.

2 stops17h 48m

San Francisco

Mon 23/11

5:00 a.m.-11:24 p.m.

2 stops14h 24m

C$ 937
Cheapest one-way

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Wed 2/9

10:45 a.m.-12:15 p.m.

1 stop29h 30m

C$ 419

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Thu 17/9

4:40 p.m.-10:26 a.m.

2 stops21h 46m

C$ 494

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Wed 12/8

10:45 a.m.-8:06 a.m.

2 stops49h 21m

C$ 778
Quickest one-way

Saint JohnSan Francisco

YSJ Saint John - SFO San Francisco

YSJSFO

Saint John

Wed 12/8

4:40 p.m.-9:48 p.m.

1 stop9h 08m

C$ 855

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Sorted by cheapest first

Best time to book a flight from St John to San Francisco

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

    For as low as C$ 822, Air Canada can have you in San Francisco from Saint John in 9h 44m. Saint John and San Francisco are separated by a distance of 4682 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St John to San Francisco 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Clara
Burlingame
San Bruno
Roseville
Livermore
South San Francisco
Novato
Vallejo

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St John to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St John to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St John to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from St John.

Can Cheapflights find flights from St John to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from St John shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from St John to San Francisco become cheaper?

Of course! You can now track prices for flights from St John to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.