$901 Cheap Flights from Baltimore (BWI) to Sudbury (YSB)

View $901 flight on Fri, Nov 21, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Sudbury, ON (YSB-Greater Sudbury)

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Cheap Flights from Baltimore to Sudbury (BWI-YSB)

Prices were available within the past 7 days and start at $901 for one-way flights and $973 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Dec 2 - Sat, Dec 6
BWI
Baltimore
YSB
Sudbury
$973 Roundtrip, found 1 day ago
$973
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 2 from Baltimore to Sudbury, returning Sat, Dec 6, priced at $973 found 1 day ago
United
Mon, Dec 8 - Wed, Dec 10
BWI
Baltimore
YSB
Sudbury
$1,001 Roundtrip, found 1 day ago
$1,001
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 8 from Baltimore to Sudbury, returning Wed, Dec 10, priced at $1,001 found 1 day ago
United
Sat, Dec 6 - Tue, Dec 9
BWI
Baltimore
YSB
Sudbury
$1,020 Roundtrip, found 1 day ago
$1,020
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 6 from Baltimore to Sudbury, returning Tue, Dec 9, priced at $1,020 found 1 day ago
United
Tue, Dec 2 - Sun, Dec 7
BWI
Baltimore
YSB
Sudbury
$1,031 Roundtrip, found 1 day ago
$1,031
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 2 from Baltimore to Sudbury, returning Sun, Dec 7, priced at $1,031 found 1 day ago
United
Fri, Dec 5 - Sun, Dec 7
BWI
Baltimore
YSB
Sudbury
$1,059 Roundtrip, found 1 day ago
$1,059
Roundtrip
found 1 day ago
Select United flight, departing Fri, Dec 5 from Baltimore to Sudbury, returning Sun, Dec 7, priced at $1,059 found 1 day ago
United
Sat, Nov 15 - Sat, Nov 22
BWI
Baltimore
YSB
Sudbury
$1,220 Roundtrip, found 18 hours ago
$1,220
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 15 from Baltimore to Sudbury, returning Sat, Nov 22, priced at $1,220 found 18 hours ago
United
Fri, Dec 5 - Mon, Dec 8
BWI
Baltimore
YSB
Sudbury
$1,316 Roundtrip, found 1 day ago
$1,316
Roundtrip
found 1 day ago
Select United flight, departing Fri, Dec 5 from Baltimore to Sudbury, returning Mon, Dec 8, priced at $1,316 found 1 day ago
United
Sat, Nov 15 - Tue, Nov 18
BWI
Baltimore
YSB
Sudbury
$1,328 Roundtrip, found 18 hours ago
$1,328
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 15 from Baltimore to Sudbury, returning Tue, Nov 18, priced at $1,328 found 18 hours ago
United
Fri, Dec 5 - Mon, Dec 8
BWI
Baltimore
YSB
Sudbury
$1,359 Roundtrip, found 1 day ago
$1,359
Roundtrip
found 1 day ago
Select United flight, departing Fri, Dec 5 from Baltimore to Sudbury, returning Mon, Dec 8, priced at $1,359 found 1 day ago
United
Fri, Dec 5 - Mon, Dec 8
BWI
Baltimore
YSB
Sudbury
$1,364 Roundtrip, found 1 day ago
$1,364
Roundtrip
found 1 day ago
Select United flight, departing Fri, Dec 5 from Baltimore to Sudbury, returning Mon, Dec 8, priced at $1,364 found 1 day ago
United
Fri, Dec 5 - Mon, Dec 8
BWI
Baltimore
YSB
Sudbury
$1,401 Roundtrip, found 1 day ago
$1,401
Roundtrip
found 1 day ago
Select United flight, departing Fri, Dec 5 from Baltimore to Sudbury, returning Mon, Dec 8, priced at $1,401 found 1 day ago
United
Sat, Nov 15 - Tue, Nov 25
BWI
Baltimore
YSB
Sudbury
$1,411 Roundtrip, found 18 hours ago
$1,411
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 15 from Baltimore to Sudbury, returning Tue, Nov 25, priced at $1,411 found 18 hours ago

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB) cost?
Snag a cheap one-way flight from $901 or cheap return flight from $973 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB)?
The cheapest month to fly from BWI to YSB is December, when demand is low. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from BWI to YSB. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB)?
You'll need to hop on a flight with a layover if you're traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from BWI to YSB?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB)?
To land at Greater Sudbury Airport (YSB) without delays, pick a flight that leaves Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB) last-minute?
Last-minute fares from BWI to YSB are generally more expensive. For the lowest prices, start searching for flights early. That being said, if you're flexible with your travel dates, you may score a cheap fare right before your journey.
Is it cheaper to book a BWI to YSB flight and hotel package?
Opting for a BWI to YSB flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greater Sudbury Airport (YSB)?
Usually, it's possible to reschedule or cancel your BWI to YSB flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Greater Sudbury
Airlines serving
United
Roundtrip price
$972
Distance
554 mi

Book with confidence

Baltimore to Sudbury Flights

The cheapest times to fly from Baltimore 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 Baltimore to Sudbury are during the month of December. You can find some of the cheapest flights from Baltimore to Sudbury with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Sudbury

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Sudbury in 2025. You can also book with separate airlines for your outbound and return journeys, from $901 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 Baltimore 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 Baltimore 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.

 

Baltimore to Sudbury Flights

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*Available to One Key members.