SFO - YSB

$394 Find Cheap Flights from San Francisco to Sudbury

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Sudbury departing on 6/23. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$634
Air Canada
Sat 9/26Wed 9/30
SFO - YSB • 1 stop
Cheapest one-way
$394
Multiple Airlines
Tue 6/23
SFO - YSB • 3 stops
Top airlines
Cheapest • from $634 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Sudbury. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $749 (round-trip)
Shortest trip • 11h 28m (one-way)
Insights
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
8:30 am - 7:17 pm
SFO
-
YSB
7h 47m
1 stop
Air Canada Logo
8:05 pm - 10:20 am
YSB
-
SFO
17h 15m
2 stops
$634Air Canada
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
7:35 pm - 1:45 pm
SFO
-
YSB
15h 10m
2 stops
Air Canada Logo
8:05 pm - 10:20 am
YSB
-
SFO
17h 15m
2 stops
$639Air Canada
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
8:30 am - 7:17 pm
SFO
-
YSB
7h 47m
1 stop
Air Canada Logo
8:05 pm - 10:20 am
YSB
-
SFO
17h 15m
2 stops
$666Air Canada
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
7:35 pm - 1:45 pm
SFO
-
YSB
15h 10m
2 stops
Air Canada Logo
2:25 pm - 10:20 am
YSB
-
SFO
22h 55m
2 stops
$671Air Canada
Mon, Jul 20 - Wed, Jul 22
Air Canada Logo
4:30 pm - 9:05 am
SFO
-
YSB
13h 35m
1 stop
Air Canada Logo
8:05 pm - 10:42 am
YSB
-
SFO
17h 37m
1 stop
$687Air Canada
Mon, Jul 20 - Wed, Jul 22
Air Canada Logo
7:30 pm - 1:45 pm
SFO
-
YSB
15h 15m
2 stops
Air Canada Logo
8:05 pm - 10:42 am
YSB
-
SFO
17h 37m
1 stop
$692Air Canada
Mon, Jul 20 - Wed, Jul 22
Air Canada Logo
7:30 pm - 1:45 pm
SFO
-
YSB
15h 15m
2 stops
Air Canada Logo
8:05 pm - 11:21 am
YSB
-
SFO
18h 16m
2 stops
$706Air Canada
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
8:30 am - 7:17 pm
SFO
-
YSB
7h 47m
1 stop
Air Canada Logo
8:05 pm - 10:39 am
YSB
-
SFO
17h 34m
1 stop
$752Air Canada
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
4:35 pm - 9:05 am
SFO
-
YSB
13h 30m
2 stops
Air Canada Logo
2:25 pm - 10:20 am
YSB
-
SFO
22h 55m
2 stops
$757Air Canada
Fri, Jun 19 - Fri, Jun 26
United Airlines Logo
9:00 pm - 7:27 pm
SFO
-
YSB
19h 27m
2 stops
United Airlines Logo
2:25 pm - 9:02 pm
YSB
-
SFO
9h 37m
1 stop
$888United Airlines
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 provide the cheapest flights from San Francisco to Sudbury?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from San Francisco to Sudbury were found on Air Canada ($634) and United Airlines ($888).

Good to know

Cheapest flight$394
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 $394 for a one-way ticket and $634 for a round-trip.

  • 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 11004 reviews
7.1Comfort
6.3Food
6.8Entertainment
7.3Boarding
7.8Crew
Airline reviews

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

2.0 MediocreRobert, May 2026
SFO - YYZ
Read more Air Canada reviews

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

Very rude gate attendants in San Francisco who didn’t let me bring my little carry on (smaller than usual size) and after boarding I realized that there still were a lot of overhead compartment space (like a full section available in some spots). That made me lose 30 minutes at my destination at 1am and it could have broken something fragile that I had in it

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

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,

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.

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

Information on your arrival and departure airports