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Sudbury

$636+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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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 November 20, 2025.

This United Airlines deal was found by Cheapflights users on 11/20. 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 12/3012:30 amSFO - YSB
2 stops12h 09mUnited Airlines
Sun 1/184:15 pmYSB - SFO
1 stop8h 24mUnited Airlines
Deal found 11/20$721
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/2711:05 pmSFO - YSB
2 stops13h 34mUnited Airlines
Mon 12/299:45 amYSB - SFO
2 stops16h 20mUnited Airlines
Deal found 11/18$877
This Air Canada deal was found by Cheapflights users on 11/18. 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 12/274:15 pmSFO - YSB
1 stop16h 54mAir Canada
Mon 12/2912:45 pmYSB - SFO
2 stops14h 18mAir Canada
Deal found 11/18$972

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 November 20, 2025.

Round-trip from

$636
(Air Canada)
From San Francisco to Sudbury
Search Deals

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 November 20, 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

Sun 2/15

8:30 am-7:24 pm

1 stop7h 54m

Sudbury

Thu 2/19

3:55 pm-9:39 pm

1 stop8h 44m

$636

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Tue 12/30

12:30 am-3:39 pm

2 stops12h 09m

Sudbury

Sun 1/18

4:15 pm-9:39 pm

1 stop8h 24m

$721

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-9:39 pm

1 stop8h 24m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

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.

Reviews of airlines servicing Sudbury

Get insights into the airlines that provide service to Sudbury. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sudbury. Reviews last updated November 20, 2025.
Read reviews from past customers who have flown Air Canada from San Francisco to Sudbury. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,463 reviews

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,463 reviews
Air Canada
7.1
Good
10,463 reviews

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

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.

  • How long is the flight from San Francisco to Sudbury, Ontario?

    Airlines like Air Canada fly from San Francisco to Sudbury, Ontario in about 7h 54m. The time it takes to get you to your destination can typically vary by up to . The distance from San Francisco to Sudbury, Ontario is about 2190 mi.

  • What is the cheapest airline to fly from San Francisco to Sudbury, Ontario round-trip?

    Air Canada, at $638, was found to be the cheapest airline from San Francisco to Sudbury, Ontario..

  • 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.

See more FAQs

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Alternative routes for San Francisco to Sudbury

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from San Francisco to Sudbury

Discover the top airline that operate flights from San Francisco to Sudbury. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$638Average$639FlexibilityNo cancel feeOn-time67%

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