$399 Cheap Flights from Denver (DEN) to Sudbury (YSB)

View $399 flight on Wed, Mar 4, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Sudbury, ON (YSB-Greater Sudbury)

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Cheap Flights from Denver to Sudbury (DEN-YSB)

Prices were available within the past 7 days and start at $399 for one-way flights and $850 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$850 Roundtrip, found 1 hour ago
$850
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $850 found 1 hour ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$856 Roundtrip, found 1 hour ago
$856
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $856 found 1 hour ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$858 Roundtrip, found 1 hour ago
$858
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $858 found 1 hour ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$869 Roundtrip, found 1 hour ago
$869
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $869 found 1 hour ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$870 Roundtrip, found 1 hour ago
$870
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $870 found 1 hour ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$880 Roundtrip, found 1 hour ago
$880
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $880 found 1 hour ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$894 Roundtrip, found 1 hour ago
$894
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $894 found 1 hour ago
Air Canada
Wed, Dec 31 - Mon, Jan 5
DEN
Denver
YSB
Sudbury
$894 Roundtrip, found 1 day ago
$894
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Dec 31 from Denver to Sudbury, returning Mon, Jan 5, priced at $894 found 1 day ago
United
Mon, Jan 5 - Wed, Jan 7
DEN
Denver
YSB
Sudbury
$896 Roundtrip, found 1 day ago
$896
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jan 5 from Denver to Sudbury, returning Wed, Jan 7, priced at $896 found 1 day ago
United
Wed, Mar 4 - Sat, Mar 7
DEN
Denver
YSB
Sudbury
$900 Roundtrip, found 1 hour ago
$900
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Mar 4 from Denver to Sudbury, returning Sat, Mar 7, priced at $900 found 1 hour ago
Flights from Denver (DEN) to Sudbury (YSB)
Origin airport
Denver Intl.
Destination airport
Greater Sudbury
Airlines serving
Air Canada, United
Roundtrip price
$849
Distance
1283 mi

Denver to Sudbury Flights

The cheapest times to fly from Denver to Sudbury

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Sudbury are during the month of March. You can find some of the cheapest flights from Denver to Sudbury with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Sudbury

Sunday is one of the best days to book for cheap flights from Denver to Sudbury: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Sudbury

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Sudbury in 2026. You can also book with separate airlines for your outbound and return journeys, from $399 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Sudbury flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Sudbury airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB) cost?
Grab a cheap one-way flight from $399 or cheap return flight from $850 from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB)?
March is the least expensive month to fly from DEN to YSB. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DEN to YSB flight.
How many flights per day from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB)?
There are no daily direct flights available from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from DEN to YSB?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB)?
To avoid possible delays on the Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB) route, fly before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB) last-minute?
Waiting until just before your departure to book a ticket from DEN to YSB often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book a DEN to YSB flight and hotel package?
Opting for a DEN to YSB flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Greater Sudbury Airport (YSB)?
If you reserved your DEN to YSB flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.