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Sudbury

$712+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$712
(United Airlines)
From San Francisco to Sudbury
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Find flight deals from San Francisco to Sudbury

Cheapest flights from San Francisco to Sudbury
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 August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 12/3111:00 pmSFO - YSB
1 stop7h 59mUnited Airlines
Sun 1/184:15 pmYSB - SFO
1 stop8h 19mUnited Airlines
Deal found 8/14$712
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/2712:43 amSFO - YSB
2 stops11h 33mUnited Airlines
Sun 10/53:55 pmYSB - SFO
1 stop7h 58mUnited Airlines
Deal found 8/14$788
This United Airlines deal was found by Cheapflights users on 8/14. 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 8/294:30 pmSFO - YSB
2 stops19h 47mUnited Airlines
Tue 9/163:55 pmYSB - SFO
1 stop8h 37mUnited Airlines
Deal found 8/14$827
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 12/3112:25 amSFO - YSB
2 stops12h 14mUnited Airlines
Sun 1/184:15 pmYSB - SFO
1 stop8h 19mUnited Airlines
Deal found 8/14$867
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 8/2612:15 pmSFO - YSB
1 stop17h 52mUnited Airlines
Fri 8/293:55 pmYSB - SFO
1 stop8h 37mUnited Airlines
Deal found 8/13$986

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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from San Francisco to Sudbury that are best for you.

Fly from

San Francisco

Fly to

Sudbury

Route

Depart

Return

Price

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Wed 12/31

11:00 pm-9:59 am

1 stop7h 59m

Sudbury

Sun 1/18

4:15 pm-9:34 pm

1 stop8h 19m

$712

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Thu 1/1

7:11 pm-3:39 pm

2 stops17h 28m

Sudbury

Sun 1/18

4:15 pm-9:34 pm

1 stop8h 19m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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.
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.

  • Can I find deals for flights from San Francisco to Sudbury that include hotel bookings?

    Yes. In addition to deals on San Francisco to Sudbury flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Sudbury?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Sudbury.

  • Can I find deals for business class flights from San Francisco to Sudbury?

    Yes. Cheapflights offers flight deals from San Francisco to Sudbury by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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