$353 Cheap Flights from Baltimore (BWI) to Ottawa (YOW)

View $353 flight on Wed, Dec 31, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Ottawa International Airport (YOW)

Cheap Flights from Baltimore to Ottawa (BWI-YOW)

Prices were available within the past 7 days and start at $353 for one-way flights and $715 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Feb 10 - Thu, Feb 12
BWI
Baltimore
YOW
Ottawa
$715 Roundtrip, found 6 days ago
$715
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Feb 10 from Baltimore to Ottawa, returning Thu, Feb 12, priced at $715 found 6 days ago
United
Wed, Nov 12 - Thu, Nov 13
BWI
Baltimore
YOW
Ottawa
$718 Roundtrip, found 3 days ago
$718
Roundtrip
found 3 days ago
Select United flight, departing Wed, Nov 12 from Baltimore to Ottawa, returning Thu, Nov 13, priced at $718 found 3 days ago
Delta
Thu, Jan 8 - Wed, Jan 21
BWI
Baltimore
YOW
Ottawa
$722 Roundtrip, found 6 days ago
$722
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Jan 8 from Baltimore to Ottawa, returning Wed, Jan 21, priced at $722 found 6 days ago
United
Wed, Nov 12 - Thu, Nov 13
BWI
Baltimore
YOW
Ottawa
$723 Roundtrip, found 3 days ago
$723
Roundtrip
found 3 days ago
Select United flight, departing Wed, Nov 12 from Baltimore to Ottawa, returning Thu, Nov 13, priced at $723 found 3 days ago
Delta
Thu, Dec 11 - Sat, Dec 13
BWI
Baltimore
YOW
Ottawa
$724 Roundtrip, found 4 days ago
$724
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Dec 11 from Baltimore to Ottawa, returning Sat, Dec 13, priced at $724 found 4 days ago
United
Tue, Feb 10 - Thu, Feb 12
BWI
Baltimore
YOW
Ottawa
$733 Roundtrip, found 6 days ago
$733
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 10 from Baltimore to Ottawa, returning Thu, Feb 12, priced at $733 found 6 days ago
Delta
Tue, Feb 10 - Thu, Feb 12
BWI
Baltimore
YOW
Ottawa
$738 Roundtrip, found 6 days ago
$738
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Feb 10 from Baltimore to Ottawa, returning Thu, Feb 12, priced at $738 found 6 days ago
United
Tue, Feb 10 - Thu, Feb 12
BWI
Baltimore
YOW
Ottawa
$743 Roundtrip, found 6 days ago
$743
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 10 from Baltimore to Ottawa, returning Thu, Feb 12, priced at $743 found 6 days ago
Delta
Thu, Jan 8 - Wed, Jan 21
BWI
Baltimore
YOW
Ottawa
$745 Roundtrip, found 6 days ago
$745
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Jan 8 from Baltimore to Ottawa, returning Wed, Jan 21, priced at $745 found 6 days ago
WestJet
Thu, Dec 11 - Sat, Dec 13
BWI
Baltimore
YOW
Ottawa
$750 Roundtrip, found 4 days ago
$750
Roundtrip
found 4 days ago
Select WestJet flight, departing Thu, Dec 11 from Baltimore to Ottawa, returning Sat, Dec 13, priced at $750 found 4 days ago

Find the cheapest month to fly from Baltimore (BWI) to Ottawa (YOW)

May is typically the cheapest month to fly

From $425 - $1,095 per traveler.

Alternative airports near Ottawa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Macdonald-Cartier Intl. YOW. Cheapest option available. Average driving time to city center is 15 minutes. Flights from $718
YOW
Macdonald-Cartier Intl.
Cheapest
Average driving time to city center15 min
Flights from $718

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW) cost?
Snag a cheap one-way flight from $353 or cheap return flight from $715 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW)?
Planning your trip for February may help you find better deals, as it's the cheapest month for flights between BWI and YOW. You'll often find the lowest prices during off-peak months.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW)?
You can't fly directly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Macdonald-Cartier Intl. Airport (YOW). However, there are other airports that have nonstop flights. Hop on your plane at Ronald Reagan Washington National Airport (DCA) and fly straight to Ottawa without a layover.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW)?
To find the cheapest airline flying from BWI to YOW, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW)?
Nonstop flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to YOW?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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 Macdonald-Cartier Intl. Airport (YOW)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW) route, travel before 3 PM. Later flights have a 22% higher chance of being canceled.**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 Macdonald-Cartier Intl. Airport (YOW) last-minute?
Holding off until just before your trip to book a flight from BWI to YOW generally means paying more. While you may come across some last-minute discounts, there's no guarantee. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a BWI to YOW flight and hotel package?
You can save money by booking a BWI to YOW flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Macdonald-Cartier Intl. Airport (YOW)?
Typically, it's possible to cancel or reschedule your BWI to YOW flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Macdonald-Cartier Intl.
Airlines serving
United, WestJet
Roundtrip price
$714
Distance
427 mi

Book with confidence

Baltimore to Ottawa Flights

The cheapest times to fly from Baltimore to Ottawa

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 Ottawa are during the month of February. You can find some of the cheapest flights from Baltimore to Ottawa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Ottawa

Sunday is one of the best days to book for cheap flights from Baltimore to Ottawa: 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 Ottawa

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 Ottawa in 2025. You can also book with separate airlines for your outbound and return journeys, from $353 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 Ottawa 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 Ottawa 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 Ottawa Flights

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*Available to One Key members.