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Sudbury

$281+ Cheap flights from San Francisco (SFO) to Sudbury, ON (YSB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$540
(Air Canada)

One-way from

$281
(United Airlines)
From San Francisco to Sudbury
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One-way flight 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 junio 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/12. 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.
lun. 8/41:55 pmSFO - YSB
1 stop16h 12mAir Canada
mar. 8/123:55 pmYSB - SFO
1 stop7h 58mAir Canada
Deal found 6/12$540
This United Airlines deal was found by Cheapflights users on 6/10. 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.
vie. 8/2911:10 pmSFO - YSB
2 stops13h 07mUnited Airlines
mar. 9/163:55 pmYSB - SFO
1 stop7h 58mUnited Airlines
Deal found 6/10$579
This United deal was found by Cheapflights users on 6/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/49:10 pmSFO - YSB
2 stops15h 07mMultiple Airlines
mar. 8/123:55 pmYSB - SFO
1 stop7h 58mMultiple Airlines
Deal found 6/12$591

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 junio 12, 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

lun. 8/4

1:55 pm-9:07 am

1 stop16h 12m

Sudbury

mar. 8/12

3:55 pm-8:53 pm

1 stop7h 58m

$540

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

vie. 8/29

11:10 pm-3:17 pm

2 stops13h 07m

Sudbury

mar. 9/16

3:55 pm-8:53 pm

1 stop7h 58m

$579

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

lun. 8/4

9:10 pm-3:17 pm

2 stops15h 07m

Sudbury

mar. 8/12

3:55 pm-8:53 pm

1 stop7h 58m

$591

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

sáb. 6/21

5:05 am-9:07 am

2 stops25h 02m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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.

Cheapflights Insights

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

Rainfall in Sudbury by month

Plan your trip to Sudbury by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sudbury, Ontario ranges from 2.0 - 4.0 inches per month. September is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Sudbury, Ontario when rainfall is around 2.0 in.

Temperature in Sudbury by month

Plan your trip to Sudbury by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sudbury, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.8 F).

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 junio 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,531 reviews
United Airlines
7.4
Good
8,790 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What are the cheapest airlines flying from San Francisco to Sudbury, Ontario round-trip?

    Air Canada, at $540, was found to be the cheapest airline from San Francisco to Sudbury, Ontario. An alternate airline flying to your destination would be United Airlines.

  • 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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