YYT - SFO

C$ 561 Find Cheap Flights from St. John's to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. John's to San Francisco departing on 13/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. John's to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. John's to San Francisco, as well as popular online travel agencies
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Cheap Flights from St. John's to San Francisco (YYT-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. John's to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. John's to San Francisco

Thu, 14 Aug - Tue, 19 Aug
Air Canada Logo
5:50 a.m. - 11:15 a.m.YYT-SFO
9h 55m1 stop
Air Canada Logo
7:30 a.m. - 12:38 a.m.SFO-YYT
12h 38m2 stops
C$ 670Air Canada
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Thu, 14 Aug - Mon, 18 Aug
Air Canada Logo
5:50 a.m. - 11:15 a.m.YYT-SFO
9h 55m1 stop
Air Canada Logo
12:15 p.m. - 10:13 a.m.SFO-YYT
17h 28m2 stops
C$ 727Air Canada
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Wed, 13 Aug - Tue, 19 Aug
 Logo
6:00 a.m. - 12:23 p.m.YYT-SFO
10h 53m1 stop
 Logo
12:50 p.m. - 6:03 a.m.SFO-YYT
36h 43m2 stops
C$ 804
Find Deal
Thu, 14 Aug - Tue, 19 Aug
United Airlines Logo
5:50 a.m. - 7:45 p.m.YYT-SFO
18h 25m2 stops
United Airlines Logo
11:59 p.m. - 1:31 a.m.SFO-YYT
21h 02m2 stops
C$ 833United Airlines
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Tue, 12 Aug - Tue, 19 Aug
United Airlines Logo
5:50 a.m. - 5:26 p.m.YYT-SFO
16h 06m2 stops
United Airlines Logo
11:59 p.m. - 1:31 a.m.SFO-YYT
21h 02m2 stops
C$ 873United Airlines
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Thu, 14 Aug - Wed, 20 Aug
WestJet Logo
5:00 p.m. - 1:59 p.m.YYT-SFO
25h 29m2 stops
WestJet Logo
7:30 a.m. - 6:20 a.m.SFO-YYT
18h 20m1 stop
C$ 897WestJet
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Sun, 10 Aug - Wed, 20 Aug
 Logo
1:10 p.m. - 10:25 a.m.YYT-SFO
25h 45m2 stops
 Logo
7:30 a.m. - 6:20 a.m.SFO-YYT
18h 20m1 stop
C$ 898
Find Deal
Fri, 15 Aug - Fri, 22 Aug
WestJet Logo
6:50 a.m. - 11:43 p.m.YYT-SFO
21h 23m2 stops
WestJet Logo
7:30 a.m. - 6:20 a.m.SFO-YYT
18h 20m1 stop
C$ 915WestJet
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Sun, 10 Aug - Mon, 18 Aug
Delta Logo
7:10 a.m. - 5:15 p.m.YYT-SFO
14h 35m1 stop
Delta Logo
12:50 p.m. - 6:20 a.m.SFO-YYT
13h 00m1 stop
C$ 1,044Delta
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Mon, 11 Aug - Sat, 23 Aug
Delta Logo
7:10 a.m. - 7:51 p.m.YYT-SFO
17h 11m2 stops
Delta Logo
12:50 p.m. - 6:20 a.m.SFO-YYT
13h 00m1 stop
C$ 1,054Delta
Find Deal
Booking Insights

KAYAK's insights & trends for St. John's to San Francisco flights

Get data-powered insights and trends into flights from St. John's to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. John's to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. John's to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. John's to San Francisco is April, where tickets cost C$ 308 (return) on average. On the other hand, the most expensive months are November and January, where the average cost of round-trip tickets is C$ 1,298 and C$ 1,281 respectively.


Good to know

Low seasonNovember
Cheapest flightC$ 561
Best time to beat the crowds but there is an average 69% increase in price.
Most popular time to fly and prices are also 60% lower on average.
Flight from St. John's to San Francisco

When to book flights from St. John's to San Francisco

Are your dates flexible? Find out the best times to travel from St. John's to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. John's to San Francisco

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

    In the last 3 days, the lowest price for a flight from St. John's to San Francisco was C$ 407 for a one-way ticket and C$ 486 for a round-trip.

  • Which aircraft models fly most regularly from St. John's to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. John's to San Francisco?

    Star Alliance, and SkyTeam are the airline alliances operating flights between St. John's and San Francisco, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. John's to San Francisco, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from St. John's to San Francisco are United Airlines and Air Canada. With an average price for the route of C$ 464 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 775 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from St. John's to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. John's to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. John's to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from St. John's is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. John's to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to St. John's with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. John's to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from St. John's up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. John's to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from St. John's to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. John's to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8896 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

2.0 MediocreAnonymous, Jul 2025LHR - SFO
Read more United Airlines reviews

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

Your crew was so so so wonderful Only thing sound be great if you kept some phone chargers and converters rest 👌👌👌👌

The speakers were way too loud. Music was played during boarding too. This noise could've been avoided.

Crew were friendly and efficient. Love the hot towel service!

The TSA people or whatever you call them were a bit rude- I asked why I had to take my shoes off bc I'm 75 and in the USA, I don't have to. The man didn't need to snap at me. It wasn't even busy! The plane was ok, a bit small for such a long flight, but I'm very familiar with the 737 used ( I fly it often between SFO and SAN) service was ok-nothing special. If I drank alcohol I guess I would be happy with free choices. the plane was HOT and even the FA commented on it. They tried to get it cooler, but it never happened.

Multiple change of the gates at Pearson, delayed flight was extremely uncomfortable.

Easy boarding, punctuality, decent service. I can only complain about the measly snack.

Never made this leg of the flight since we rebooked through United instead. Did not make it to immigration/US custom due to the delay. Had to spend the night on our own dime in Toronto

Booked flight was cancelled. Was rebooked but sat in airport for several hours for new departure.

United did not permit online check-in from home as document scans were not getting uploaded. This should be fixed their app

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

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