$570+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YSB
Feb 6 — Feb 131
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 January 7, 2026.
Round-trip from | $570 (Air Canada) |
|---|
Find flight deals from San Francisco to Sudbury
Cheapest flights from San Francisco to SudburyExplore 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 January 7, 2026.
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 January 7, 2026.
This Air Canada deal was found by Cheapflights users on 1/5. 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 4/188:45 amSFO - YSB
1 stop7h 36mAir Canada
Wed 4/229:45 amYSB - SFO
1 stop8h 25mAir Canada
Deal found 1/5![Air Canada logo]()
$570
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 January 7, 2026.
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
Sat 4/18
8:45 am-7:21 pm
1 stop7h 36m
Sudbury
Wed 4/22
9:45 am-3:10 pm
1 stop8h 25m
$570
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 January 7, 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.
Comfort
7.1
Food
6.3
Boarding
7.3
Entertainment
6.8
Crew
7.8
Overall
7.1
Reviews
1 / 20
2.0
MediocreShawna,Sep 2025
DCA - YYZ
Comfort
7.1
Food
6.3
Boarding
7.3
Entertainment
6.8
Crew
7.8
Overall
7.1
Reviews
1 / 20
2.0
MediocreShawna,Sep 2025
DCA - YYZ
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.
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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.
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 January 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$638 | Average$639 | FlexibilityNo cancel fee | On-time67% |