SFO - YSB

$682 Find Cheap Flights from San Francisco to Sudbury

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Sudbury departing on 1/1. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Sudbury, 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 San Francisco to Sudbury, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$682
United Airlines
Thu 1/1Sun 1/18
SFO - YSB • 2 stops
Cheapest one-way
Multiple Airlines
Mon 11/3
SFO - YSB • multi-stop
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We hope you love your trip to Sudbury!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Sudbury (SFO-YSB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Sudbury 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 San Francisco to Sudbury

Thu, Jan 1 - Sun, Jan 18
United Airlines Logo
6:50 pm - 3:39 pmSFO-YSB
17h 49m2 stops
United Airlines Logo
4:15 pm - 9:39 pmYSB-SFO
8h 24m1 stop
$682United Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 18
United Airlines Logo
6:50 pm - 3:39 pmSFO-YSB
17h 49m2 stops
United Airlines Logo
9:45 am - 9:20 pmYSB-SFO
14h 35m2 stops
$697United Airlines
Find Deal
Wed, Dec 31 - Sun, Jan 18
United Airlines Logo
11:59 pm - 3:39 pmSFO-YSB
12h 40m2 stops
United Airlines Logo
4:15 pm - 9:39 pmYSB-SFO
8h 24m1 stop
$721United Airlines
Find Deal
Wed, Dec 31 - Sun, Jan 18
United Airlines Logo
7:11 pm - 3:39 pmSFO-YSB
17h 28m2 stops
United Airlines Logo
9:45 am - 5:36 pmYSB-SFO
10h 51m2 stops
$737United Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 18
United Airlines Logo
11:05 pm - 3:39 pmSFO-YSB
13h 34m2 stops
United Airlines Logo
4:15 pm - 9:39 pmYSB-SFO
8h 24m1 stop
$751United Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 18
United Airlines Logo
7:11 pm - 3:39 pmSFO-YSB
17h 28m2 stops
United Airlines Logo
9:45 am - 8:10 pmYSB-SFO
13h 25m2 stops
$767United Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 18
United Airlines Logo
11:18 pm - 12:09 pmSFO-YSB
9h 51m1 stop
United Airlines Logo
4:15 pm - 9:39 pmYSB-SFO
8h 24m1 stop
$1,029United Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 18
United Airlines Logo
11:18 pm - 12:09 pmSFO-YSB
9h 51m1 stop
United Airlines Logo
4:15 pm - 9:39 pmYSB-SFO
8h 24m1 stop
$1,069United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Francisco to Sudbury flights

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

Which airlines fly non-stop between San Francisco and Sudbury?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from San Francisco to Sudbury.

There is just one airline that flies from San Francisco to Sudbury direct and that is Air Canada. The best round-trip deal found from Air Canada for the route is $638.

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Good to know

Cheapest flight$682
Flight from San Francisco to Sudbury

When to book flights from San Francisco to Sudbury

Are your dates flexible? Find out the best times to travel from San Francisco to Sudbury 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 San Francisco to Sudbury

  • What is the cheapest flight from San Francisco to Sudbury?

    In the last 3 days, the lowest price for a flight from San Francisco to Sudbury was $682 for a round-trip ticket.

  • Do I need a passport to fly between San Francisco and Sudbury?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in Sudbury.

  • Which airports will I be using when flying from San Francisco to Sudbury?

    On your way to Sudbury, you’ll fly out from San Francisco. You’ll be landing at Sudbury.

  • Which aircraft models fly most regularly from San Francisco to Sudbury?

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

  • Which airline alliances offer flights from San Francisco to Sudbury?

    Star Alliance is the only airline alliance operating flights between San Francisco and Sudbury.

  • How does KAYAK find such low prices on flights from San Francisco to Sudbury?

    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 San Francisco to Sudbury.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sudbury from San Francisco 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 San Francisco to Sudbury?

    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 Sudbury with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and YSB can sometimes prove cheaper using this method.

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

    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 Sudbury from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco to Sudbury

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Sudbury. 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 San Francisco to Sudbury? 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.
7.1
Air CanadaOverall score based on 10392 reviews
7.8Crew
7.3Boarding
6.3Food
7.1Comfort
6.8Entertainment
Airline reviews

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

8.0 ExcellentAnonymous, Oct 2025SFO - YYZ
Read more Air Canada reviews

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

They rescheduled me and I had no issues with the new flight

No paper towels in bathroom. Aisle seat difficult to get out of Other than those, excellent service

Both flights are delayed so I rate the whole experience as mediocre.

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Everything you need to know for your flight from San Francisco to Sudbury

Information on your arrival and departure airports

San Francisco (SFO)
Sudbury (YSB)

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