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Cheap flights from San Francisco to Saint John from C$ 783

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSJ
3 Aug — 10 Aug1
1 adult

Cheap 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 29 July 2025.

Round-trip from

C$ 783
Air Canada
  • Air Canada
  • 17/9-1/10
  • 3 total stops
  • 24h 04m total
  • San Francisco to Saint John
Search Deals

Find 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 29 July 2025.

Wed 17/97:10 a.m.SFO - YSJ
2 stops13h 01mAir Canada
Wed 1/105:55 a.m.YSJ - SFO
1 stop11h 03mAir Canada
Deal found 26/7C$ 783
Wed 17/910:15 a.m.SFO - YSJ
3 stops25h 30mMultiple Airlines
Wed 1/1012:00 p.m.YSJ - SFO
3 stops25h 30mMultiple Airlines
Deal found 26/7C$ 908
Tue 16/912:43 a.m.SFO - YSJ
2 stops19h 28mUnited Airlines
Wed 1/105:55 a.m.YSJ - SFO
1 stop11h 03mUnited Airlines
Deal found 26/7C$ 971

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 629,999 searches. Data last updated 29 July 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

Wed 17/9

7:10 a.m.-12:11 a.m.

2 stops13h 01m

Saint John

Wed 1/10

5:55 a.m.-12:58 p.m.

1 stop11h 03m

C$ 783

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Wed 17/9

10:15 a.m.-3:45 p.m.

3 stops25h 30m

Saint John

Wed 1/10

12:00 p.m.-9:30 a.m.

3 stops25h 30m

C$ 908

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Tue 16/9

12:43 a.m.-12:11 a.m.

2 stops19h 28m

Saint John

Wed 1/10

5:55 a.m.-12:58 p.m.

1 stop11h 03m

C$ 971

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

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.

Reviews of airlines servicing St John

Get insights into the airlines that provide service to St John. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St John. Reviews last updated 29 July 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from San Francisco to Saint John by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,899 reviews
Check prices

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,899 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,822 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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.

  • What is the cheapest month to book a flight from San Francisco to Saint John?

    Currently, May is the cheapest month in which you can book a flight from San Francisco to Saint John (average of C$ 213). Flying from San Francisco to Saint John in December is currently the most expensive (average of C$ 461). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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