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Cheap flights from San Francisco to Saint John from C$ 491

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 29/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSJ
25 Feb — 4 Mar1
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 20 February 2025.

Round-trip from

C$ 1,200

One-way from

C$ 491
United Airlines
  • United Airlines
  • 6/6-22/6
  • 4 total stops
  • 49h 57m total
  • San Francisco to Saint John
Search Deals
United Airlines
  • United Airlines
  • 29/6
  • 2 total stops
  • 24h 49m 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 20 February 2025.

Fri 6/611:00 a.m.SFO - YSJ
2 stops19h 49mUnited Airlines
Sun 22/65:30 a.m.YSJ - SFO
2 stops30h 08mUnited Airlines
Deal found 18/2C$ 1,200
Fri 6/67:25 a.m.SFO - YSJ
2 stops23h 24mMultiple Airlines
Sun 22/65:30 a.m.YSJ - SFO
1 stop9h 33mMultiple Airlines
Deal found 18/2C$ 1,527
Fri 6/610:55 p.m.SFO - YSJ
1 stop15h 10mAir Canada
Sun 22/65:30 a.m.YSJ - SFO
1 stop9h 33mAir Canada
Deal found 18/2C$ 1,845

Find flights from San Francisco to St John within your budget

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 20 February 2025.

Fly from

San Francisco

Fly to

St John

Route

Depart

Return

Price

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Fri 6/6

11:00 a.m.-10:49 a.m.

2 stops19h 49m

Saint John

Sun 22/6

5:30 a.m.-7:38 a.m.

2 stops30h 08m

C$ 1,200

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Fri 6/6

7:25 a.m.-10:49 a.m.

2 stops23h 24m

Saint John

Sun 22/6

5:30 a.m.-11:03 a.m.

1 stop9h 33m

C$ 1,527

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Fri 6/6

10:55 p.m.-6:05 p.m.

1 stop15h 10m

Saint John

Sun 22/6

5:30 a.m.-11:03 a.m.

1 stop9h 33m

C$ 1,845

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Sun 29/6

6:00 a.m.-10:49 a.m.

2 stops24h 49m

C$ 491

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Sun 29/6

8:40 a.m.-12:12 a.m.

1 stop11h 32m

C$ 926

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

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.

Travel insights for flights from San Francisco to St John

Get recent, data-driven insights about flights from San Francisco to St John including ideal travel times, pricing trends, and more.

Rainfall in St John by month

Plan your trip to St John by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Saint John ranges from 82.0 - 134.0 mm per month. November is typically the wettest month, when rainfall can reach 134.0 mm. August is typically the driest time to visit Saint John when rainfall is around 82.0 mm.

Temperature in St John by month

Plan your trip to St John by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Saint John, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -8.0 C).

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 20 February 2025.
United Airlines
7.4
Good
8,766 reviews
Check prices

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

United Airlines
7.4
Good
8,766 reviews
United Airlines
7.4
Good
8,766 reviews
Check prices

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Air Canada
7.0
Good
8,748 reviews
United Airlines
7.4
Good
8,766 reviews
Check prices

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

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 March is currently the most expensive (average of C$ 463). 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.

See more FAQs

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