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$812+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Cheap 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 July 21, 2026.

This Air Canada deal was found by Cheapflights users on 7/18. 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.
Mon 12/78:40 am
SFO
-
YSB
1 stop7h 55m
Air Canada
Fri 12/113:45 pm
YSB
-
SFO
1 stop8h 45m
Air Canada
Deal found 7/18$812
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 7/238:30 am
SFO
-
YSB
1 stop7h 57m
United Airlines
Sun 8/28:05 pm
YSB
-
SFO
2 stops24h 25m
United Airlines
Deal found 7/20$1,503
This Air Canada deal was found by Cheapflights users on 7/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:10 am
SFO
-
YSB
1 stop8h 17m
Air Canada
Sun 8/28:05 pm
YSB
-
SFO
1 stop17h 40m
Air Canada
Deal found 7/20$1,549
This Mytrip deal was found by Cheapflights users on 7/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:20 pm
SFO
-
YSB
2 stops23h 10m
Porter Airlines
Sun 8/24:10 pm
YSB
-
SFO
3 stops23h 10m
Porter Airlines
Deal found 7/20$2,091
This Mytrip deal was found by Cheapflights users on 7/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:05 pm
SFO
-
YSB
3 stops18h 25m
Multiple Airlines
Sun 8/24:10 pm
YSB
-
SFO
3 stops23h 10m
Multiple Airlines
Deal found 7/20$2,471

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 July 21, 2026.

Round-trip from

$812
(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 July 21, 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

Price

Cheapest round-trip
Quickest round-trip

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Mon 12/7

8:40 am-7:35 pm

1 stop7h 55m

Sudbury

Fri 12/11

3:45 pm-9:30 pm

1 stop8h 45m

$812

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/18

Sorted by cheapest first

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 July 21, 2026.
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
11,361 reviews

Food

6.3

Crew

7.8

Overall

7.1

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good
Air Canada
7.1
Good
11,361 reviews
Air Canada
7.1
Good
11,361 reviews

Food

6.3

Crew

7.8

Overall

7.1

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good

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 55m. 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 $253, 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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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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$253Average$639FlexibilityNo cancel feeOn-time67%

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