$533+ Cheap flights from San Francisco (SFO) to Sudbury, ON (YSB)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
Nov 26 — Dec 31
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Sudbury with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Sudbury
Cheapest
Best
Last-minute
Cheapest flights from San Francisco to SudburyExplore the most affordable flight options available from San Francisco to Sudbury. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.
Explore the most affordable flight options available from San Francisco to Sudbury. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.
This Air Canada deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/114:40 pm -
1 stop14h 19m
Fri 12/1810:35 am -
1 stop8h 05m
Deal found 10/26![Air Canada logo]()
$533
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:10 am -
2 stops11h 55m
Fri 12/1810:35 am -
2 stops15h 27m
Deal found 10/26![United Airlines logo]()
$721
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:40 pm -
1 stop14h 14m
Fri 11/2710:35 am -
1 stop8h 05m
Deal found 10/23![United Airlines logo]()
$843
This Air Canada deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:53 pm -
2 stops12h 06m
Fri 10/308:10 pm -
1 stop16h 19m
Deal found 10/22![Air Canada logo]()
$1,534
This Air Canada deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:53 pm -
2 stops13h 06m
Wed 11/410:35 am -
1 stop8h 05m
Deal found 10/22![Air Canada logo]()
$1,586
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:40 pm -
1 stop15h 19m
Wed 11/410:35 am -
1 stop8h 05m
Deal found 10/22![United Airlines logo]()
$1,605
Best flights from San Francisco to SudburyDiscover carefully curated flight deals from San Francisco to Sudbury that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.
Discover carefully curated flight deals from San Francisco to Sudbury that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.
This Air Canada deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/288:40 am -
1 stop7h 55m
Mon 3/1510:35 am -
1 stop8h 05m
Deal found 10/25![Air Canada logo]()
$554
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:10 am -
2 stops11h 55m
Fri 12/1810:35 am -
2 stops15h 27m
Deal found 10/26![United Airlines logo]()
$721
This Air Canada deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:10 am -
2 stops11h 55m
Fri 12/1810:35 am -
1 stop8h 05m
Deal found 10/26![Air Canada logo]()
$659
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:40 pm -
1 stop14h 14m
Fri 11/2710:35 am -
1 stop8h 05m
Deal found 10/23![United Airlines logo]()
$843
Last-minute flights from San Francisco to SudburyDiscover last-minute flight deals from San Francisco to Sudbury. Data last updated October 27, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Sudbury. Data last updated October 27, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:53 pm -
2 stops12h 06m
Fri 10/308:10 pm -
1 stop16h 19m
Deal found 10/22![Air Canada logo]()
$1,534
This Air Canada deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:53 pm -
2 stops13h 06m
Wed 11/410:35 am -
1 stop8h 05m
Deal found 10/22![Air Canada logo]()
$1,586
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:40 pm -
1 stop15h 19m
Wed 11/410:35 am -
1 stop8h 05m
Deal found 10/22![United Airlines logo]()
$1,605
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:40 pm -
1 stop14h 14m
Fri 11/2710:35 am -
1 stop8h 05m
Deal found 10/23![United Airlines logo]()
$843
Find flight deals from San Francisco to Sudbury
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Sudbury (YSB). 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 October 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $533 (Air Canada) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Sudbury 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 7,457,451 searches. Data last updated October 27, 2026.
Use the filters below to find and compare flights from San Francisco to Sudbury that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San FranciscoSudbury
SFO San Francisco - YSB Sudbury
SFOYSB
San Francisco
Sun 2/28
8:40 am-7:35 pm
1 stop7h 55m
Sudbury
Mon 3/15
10:35 am-3:40 pm
1 stop8h 05m
$554
San FranciscoSudbury
SFO San Francisco - YSB Sudbury
SFOYSB
San Francisco
Thu 12/10
12:10 am-3:05 pm
2 stops11h 55m
Sudbury
Fri 12/18
10:35 am-3:40 pm
1 stop8h 05m
$659
San FranciscoSudbury
SFO San Francisco - YSB Sudbury
SFOYSB
San Francisco
Thu 12/10
12:10 am-3:05 pm
2 stops11h 55m
Sudbury
Fri 12/18
10:35 am-11:02 pm
2 stops15h 27m
$721
San FranciscoSudbury
SFO San Francisco - YSB Sudbury
SFOYSB
San Francisco
Fri 11/20
4:40 pm-9:54 am
1 stop14h 14m
Sudbury
Fri 11/27
10:35 am-3:40 pm
1 stop8h 05m
$843
Sorted by cheapest first
Compare providers for flights from San Francisco to Sudbury
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Sudbury in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Sudbury, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Sudbury, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Sudbury, Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Sudbury, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Sudbury, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Sudbury
Have a flexible travel schedule? Discover the best time to fly to Sudbury from San Francisco with our price prediction graph.
SFO-YSB
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.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Sudbury. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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