Cheap flights from St. John's to San Francisco from C$ 321

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — SFO
22 Aug — 29 Aug1
1 adult

Cheap flight deals from St. John's to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from St. John's (YYT) 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 17 August 2025.

Round-trip from

C$ 506

One-way from

C$ 321

Popular in

November

Cheapest in

April

Average price

C$ 399
WestJet
  • WestJet
  • 28/9-7/10
  • 2 total stops
  • 46h 14m total
  • St. John's to San Francisco
Air Canada
  • Air Canada
  • 5/11
  • 2 total stops
  • 15h 29m total
  • St. John's to San Francisco
Highest demand for flights based on searches. 27% potential increase in price (C$ 399 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease (C$ 68 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from St. John's to San Francisco

Cheapest flights from St. John's to San Francisco
Explore the most affordable flight options available from St. John's to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 August 2025.

Sun 28/97:10 a.m.YYT - SFO
1 stop33h 14mWestJet
Tue 7/1012:50 p.m.SFO - YYT
1 stop13h 00mWestJet
Deal found 14/8C$ 506
Sun 28/97:10 a.m.YYT - SFO
1 stop14h 34mMultiple Airlines
Mon 6/1012:05 a.m.SFO - YYT
2 stops18h 21mMultiple Airlines
Deal found 14/8C$ 1,256

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. John's 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 17 August 2025.
Use the filters below to find and compare flights from St. John's to San Francisco that are best for you.

Fly from

St. John's

Fly to

San Francisco

Route

Depart

Return

Price

St. John'sSan Francisco

YYT - SFO

YYTSFO

St John's

Sun 28/9

7:10 a.m.-11:54 a.m.

1 stop33h 14m

San Francisco

Tue 7/10

12:50 p.m.-6:20 a.m.

1 stop13h 00m

C$ 506

St. John'sSan Francisco

YYT - SFO

YYTSFO

St John's

Sun 28/9

7:10 a.m.-5:14 p.m.

1 stop14h 34m

San Francisco

Mon 6/10

12:05 a.m.-10:56 p.m.

2 stops18h 21m

C$ 1,256

St. John'sSan Francisco

YYT - SFO

YYTSFO

St John's

Wed 5/11

10:35 a.m.-9:34 p.m.

2 stops15h 29m

C$ 321

St. John'sSan Francisco

YYT - SFO

YYTSFO

St John's

Wed 5/11

6:00 a.m.-9:34 p.m.

3 stops20h 04m

C$ 591

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/8

Best time to book a flight from St. John's to San Francisco

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

Cheapflights Insights

Everything you need to know about your flight from St. John's to San Francisco

What is the cheapest month to book a flight from St. John's to San Francisco?

Currently, January is the cheapest month in which you can book a flight from St. John's to San Francisco (average of C$ 276). Flying from St. John's to San Francisco in December is currently the most expensive (average of C$ 368). 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.

What is the cheapest time of day to fly from YYT to SFO?

Find hourly flight availability from St. John's to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 August 2025.

It’s optimal to fly from St. John's to San Francisco in the afternoon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight at noon.

What’s the top layover airport for flights from St. John's to San Francisco?

Share of one-stop round-trip flights from St. John's to San Francisco chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 75% of one-stop itineraries from St. John's to San Francisco on Cheapflights.

What’s the cheapest layover airport for flights from St. John's to San Francisco?

Average round-trip fare for 1-stop flights from St. John's to San Francisco, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Montreal (YUL) is the most affordable 1-stop option, with an average round-trip price of C$ 597.

What’s the fastest layover option from St. John's to San Francisco?

Shortest average travel time for 1-stop one-way flights from St. John's to San Francisco, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 11h 29m.

Which airport typically offers the quickest layover for flights from St. John's to San Francisco?

Average layover duration for 1-stop one-way flights from St. John's to San Francisco, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 2h 56m.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated 17 August 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from St. John's to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from St. John's to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from St. John's to San Francisco round-trip?

    Air Canada, at C$ 168, was found to be the cheapest airline from St. John's to San Francisco. An alternate airline flying to your destination would be United Airlines. These flights start at 78% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from St. John's 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's to San Francisco.

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

    Yes. Cheapflights offers flight deals from St. John's 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.

  • What is the cheapest month to book a flight from St. John's to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from St. John's to San Francisco (average of C$ 276). Flying from St. John's to San Francisco in December is currently the most expensive (average of C$ 368). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Richmond
Newark
Alameda
Redwood City
Burlingame
San Bruno
South San Francisco
Scotts Valley
Belmont
Novato
Millbrae
Santa Clara
Vallejo

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Alternative routes for St. John's to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from St. John's to San Francisco

Discover the top 2 airlines that operate flights from St. John's to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 168AverageC$ 777FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 386AverageC$ 465FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. John's to San Francisco, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on St. John's to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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