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Sudbury

$668+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
Oct 31 — Nov 71
Fri 10/31
Fri 11/7
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 October 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$668
(Air Canada)
Provider with most accurate pricing for San Francisco-Sudbury flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Sudbury flights.
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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 October 1, 2025.

This United Airlines deal was found by Cheapflights users on 10/1. 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 12/317:11 pmSFO - YSB
2 stops17h 28mUnited Airlines
Sun 1/184:15 pmYSB - SFO
1 stop8h 24mUnited Airlines
Deal found 10/1$700
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 10/1212:43 amSFO - YSB
2 stops11h 33mUnited Airlines
Thu 10/163:55 pmYSB - SFO
1 stop8h 37mUnited Airlines
Deal found 9/30$966
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Sun 10/1212:15 pmSFO - YSB
1 stop17h 51mUnited Airlines
Wed 10/153:55 pmYSB - SFO
2 stops18h 50mUnited Airlines
Deal found 9/29$996
This United Airlines deal was found by Cheapflights users on 10/1. 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 10/1410:37 amSFO - YSB
2 stops19h 29mUnited Airlines
Fri 10/179:45 amYSB - SFO
2 stops12h 05mUnited Airlines
Deal found 10/1$1,005

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 October 1, 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

Thu 1/1

4:15 pm-9:09 am

1 stop13h 54m

Sudbury

Sun 1/18

4:15 pm-9:39 pm

1 stop8h 24m

$668

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Wed 12/31

11:05 pm-3:39 pm

2 stops13h 34m

Sudbury

Sun 1/18

9:45 am-10:58 pm

2 stops16h 13m

$715

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Thu 1/1

6:50 pm-3:39 pm

2 stops17h 49m

Sudbury

Sun 1/18

4:15 pm-9:39 pm

1 stop8h 24m

$730

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Sun 10/12

12:43 am-3:16 pm

2 stops11h 33m

Sudbury

Thu 10/16

3:55 pm-9:32 pm

1 stop8h 37m

$966

San FranciscoSudbury

SFO - YSB

SFOYSB

San Francisco

Sat 10/11

12:43 am-3:16 pm

2 stops11h 33m

Sudbury

Wed 10/15

3:55 pm-7:45 am

2 stops18h 50m

$982

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

  • 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.
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.

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

    Airlines like Air Canada and United Airlines fly from San Francisco to Sudbury, Ontario in about 13h 34m. The time it takes to get you to your destination can typically vary by up to 20m. The distance from San Francisco to Sudbury, Ontario is about 2190 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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

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