The cheapest times to fly from SFO to YYT are

  • January 8th to February 4th
  • July 9th to December 9th (except the weeks of July 16th and July 30th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SFO to YYT is mid to late September. Prices can be as high as $1239 for Sunday flights during mid December, or as low as $450 for Tuesday flights around mid to late September.


When to Fly to St. John’s

Flying from San Francisco, CA (SFO) to St. John’s (YYT) will usually cost between $461 to $1015 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $458. Due to high demand the most expensive time to fly is mid December, with an average price of $1042. Planning your trip to low-cost times can easily save you $584 on economy flights and even more on first-class flights. Generally, any price below $656 can be considered a good price for a round-trip SFO to YYT flight.

See below for a graph of average weekly prices for the SFO to YYT route. All prices are for round-trip tickets in USD.

SFO to YYT Flight Prices

Compared to other flights, the SFO to YYT flight is cheaper than the average and costs less than the average flight leaving from San Francisco. The average price per mile (for a direct flight) is $0.12, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $160 (22%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $582. Return trip prices are from the YYT to SFO flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SFO to YYT can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 15 minutes may not be realistic.


Flight Hacking SFO to YYT

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SFO to YYT — but Champion Traveler does!

Hack #1: Boston, MA (SFO > BOS > YYT)

  • Price for both tickets: $655
  • Average savings: $1 (0.08%)

See SFO to BOS flights


Flight Questions Answered

Still have questions about flying from SFO to YYT? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Air Canada, Alaska, Delta, United, WestJet, and potentially more during busy seasons.

How far away is it from St. John’s International Airport to San Francisco International Airport?

The distance between the two airports is roughly 3485 miles or 5609 kilometers.

How long does it take to fly from SFO to YYT?

The real-world flight time for a nonstop SFO to YYT flight is about 7 hour 15 minutes.

How many flights go between San Francisco, CA and St. John’s?

It depends on the day of the week and the date, but a typical day might have around 92 available flights from SFO to YYT.


Airport Location Info


Departing Airport

Origination code SFO
Origination airport name San Francisco International Airport
City San Francisco, CA
Country the United States
Latitude 37.6
Longitude -122.4

Return Airport

Destination code YYT
Destination airport name St. John’s International Airport
City St. John’s
Country Canada
Latitude 47.6
Longitude -52.8


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.