$323 Cheap Flights from Ottawa (YOW) to Baltimore (BWI)

View $323 flight on Tue, Dec 16, 2025Opens in a new window

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

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Cheap Flights from Ottawa to Baltimore (YOW-BWI)

Prices were available within the past 7 days and start at $323 for one-way flights and $593 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 18 - Wed, Nov 19
YOW
Ottawa
BWI
Baltimore
$593 Roundtrip, found 6 days ago
$593
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 18 from Ottawa to Baltimore, returning Wed, Nov 19, priced at $593 found 6 days ago
United
Mon, Mar 30 - Wed, Apr 1
YOW
Ottawa
BWI
Baltimore
$594 Roundtrip, found 1 day ago
$594
Roundtrip
found 1 day ago
Select United flight, departing Mon, Mar 30 from Ottawa to Baltimore, returning Wed, Apr 1, priced at $594 found 1 day ago
United
Wed, Nov 19 - Sun, Nov 23
YOW
Ottawa
BWI
Baltimore
$604 Roundtrip, found 5 days ago
$604
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 19 from Ottawa to Baltimore, returning Sun, Nov 23, priced at $604 found 5 days ago
United
Tue, Nov 11 - Tue, Nov 25
YOW
Ottawa
BWI
Baltimore
$618 Roundtrip, found 1 day ago
$618
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 11 from Ottawa to Baltimore, returning Tue, Nov 25, priced at $618 found 1 day ago
United
Sat, Nov 15 - Sun, Nov 23
YOW
Ottawa
BWI
Baltimore
$621 Roundtrip, found 6 days ago
$621
Roundtrip
found 6 days ago
Select United flight, departing Sat, Nov 15 from Ottawa to Baltimore, returning Sun, Nov 23, priced at $621 found 6 days ago
United
Sun, Mar 29 - Wed, Apr 1
YOW
Ottawa
BWI
Baltimore
$622 Roundtrip, found 1 day ago
$622
Roundtrip
found 1 day ago
Select United flight, departing Sun, Mar 29 from Ottawa to Baltimore, returning Wed, Apr 1, priced at $622 found 1 day ago
United
Tue, Nov 18 - Wed, Nov 19
YOW
Ottawa
BWI
Baltimore
$633 Roundtrip, found 6 days ago
$633
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 18 from Ottawa to Baltimore, returning Wed, Nov 19, priced at $633 found 6 days ago
United
Sat, Nov 8 - Tue, Nov 25
YOW
Ottawa
BWI
Baltimore
$642 Roundtrip, found 1 day ago
$642
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 8 from Ottawa to Baltimore, returning Tue, Nov 25, priced at $642 found 1 day ago
WestJet
Thu, Dec 4 - Thu, Dec 11
YOW
Ottawa
BWI
Baltimore
$706 Roundtrip, found 2 days ago
$706
Roundtrip
found 2 days ago
Select WestJet flight, departing Thu, Dec 4 from Ottawa to Baltimore, returning Thu, Dec 11, priced at $706 found 2 days ago
Air Canada
Tue, Nov 18 - Wed, Nov 19
YOW
Ottawa
BWI
Baltimore
$708 Roundtrip, found 6 days ago
$708
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Nov 18 from Ottawa to Baltimore, returning Wed, Nov 19, priced at $708 found 6 days ago

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

May is typically the cheapest month to fly

From $371 - $971 per traveler.

Alternative airports near Baltimore

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

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $486
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $486

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Secure a cheap one-way flight from $323 or cheap return flight from $593 from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The cheapest month to fly from YOW to BWI is November, when demand is low. Off-peak season is generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To find the cheapest airline flying from YOW to BWI, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Direct flights from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YOW to BWI?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary based 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 Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To reach Baltimore Washington Intl. Thurgood Marshall Airport (BWI) without delays, pick a flight that leaves Macdonald-Cartier Intl. Airport (YOW) before 3 PM. The chance 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.
What airports do you fly into for Baltimore from Macdonald-Cartier Intl. Airport (YOW)?
You'll land at Washington Dulles Intl. Airport (IAD) or Ronald Reagan Washington National Airport (DCA) when you travel to Baltimore on a direct flight from Macdonald-Cartier Intl. Airport (YOW).
Is it cheaper to buy a plane ticket from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until just before your departure to book a flight from YOW to BWI often results in higher prices. While you might find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to boost your chances of getting a bargain.
Is it cheaper to book a YOW to BWI flight and hotel package?
Compared with arranging hotels and flights separately, booking a YOW to BWI flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Simply secure your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You can usually reschedule or cancel your YOW to BWI flight. However, if the booking was made more than 24 hours ago, 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
Macdonald-Cartier Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
United, WestJet
Roundtrip price
$592
Distance
427 mi

Book with confidence

Ottawa to Baltimore Flights

The cheapest times to fly from Ottawa to Baltimore

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

 

The best time to book a flight from Ottawa to Baltimore

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

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 Ottawa to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $323 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 Ottawa to Baltimore 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 Ottawa to Baltimore 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.

 

Ottawa to Baltimore Flights

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*Available to One Key members.