CA $396 Cheap Flights from Ottawa (YOW) to Baltimore (BWI)

View CA $396 flight on Tue, Jun 9, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Ottawa (YOW) to Baltimore (BWI)

Prices were available within the past 7 days and start at CA $396 for one-way flights and CA $710 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Tue, May 26 - Wed, May 27
YOW
Ottawa
BWI
Baltimore
CA $710 Roundtrip, found 3 hours ago
CA $710
Roundtrip
found 3 hours ago
Select Porter Airlines flight, departing Tue, May 26 from Ottawa to Baltimore, returning Wed, May 27, priced at CA $710 found 3 hours ago
Porter Airlines
Tue, Jun 16 - Tue, Jun 23
YOW
Ottawa
BWI
Baltimore
CA $721 Roundtrip, found 3 days ago
CA $721
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Jun 16 from Ottawa to Baltimore, returning Tue, Jun 23, priced at CA $721 found 3 days ago
Porter Airlines
Tue, Jun 9 - Wed, Jun 24
YOW
Ottawa
BWI
Baltimore
CA $737 Roundtrip, found 3 hours ago
CA $737
Roundtrip
found 3 hours ago
Select Porter Airlines flight, departing Tue, Jun 9 from Ottawa to Baltimore, returning Wed, Jun 24, priced at CA $737 found 3 hours ago
Porter Airlines
Tue, May 26 - Tue, Jun 2
YOW
Ottawa
BWI
Baltimore
CA $737 Roundtrip, found 2 days ago
CA $737
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Tue, May 26 from Ottawa to Baltimore, returning Tue, Jun 2, priced at CA $737 found 2 days ago
Porter Airlines
Tue, Jun 16 - Tue, Jun 23
YOW
Ottawa
BWI
Baltimore
CA $742 Roundtrip, found 3 days ago
CA $742
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Jun 16 from Ottawa to Baltimore, returning Tue, Jun 23, priced at CA $742 found 3 days ago
Porter Airlines
Tue, May 26 - Sat, May 30
YOW
Ottawa
BWI
Baltimore
CA $746 Roundtrip, found 3 hours ago
CA $746
Roundtrip
found 3 hours ago
Select Porter Airlines flight, departing Tue, May 26 from Ottawa to Baltimore, returning Sat, May 30, priced at CA $746 found 3 hours ago
Porter Airlines
Tue, Jun 16 - Wed, Jun 17
YOW
Ottawa
BWI
Baltimore
CA $746 Roundtrip, found 1 day ago
CA $746
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Tue, Jun 16 from Ottawa to Baltimore, returning Wed, Jun 17, priced at CA $746 found 1 day ago
American Airlines
Thu, Sep 10 - Mon, Sep 14
YOW
Ottawa
BWI
Baltimore
CA $752 Roundtrip, found 4 days ago
CA $752
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Sep 10 from Ottawa to Baltimore, returning Mon, Sep 14, priced at CA $752 found 4 days ago
United
Thu, Aug 6 - Sun, Aug 9
YOW
Ottawa
BWI
Baltimore
CA $897 Roundtrip, found 13 hours ago
CA $897
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Aug 6 from Ottawa to Baltimore, returning Sun, Aug 9, priced at CA $897 found 13 hours ago
WestJet
Sat, Jun 6 - Wed, Jun 10
YOW
Ottawa
BWI
Baltimore
CA $1,111 Roundtrip, found 1 day ago
CA $1,111
Roundtrip
found 1 day ago
Select WestJet flight, departing Sat, Jun 6 from Ottawa to Baltimore, returning Wed, Jun 10, priced at CA $1,111 found 1 day ago

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 centre is 57 minutes. Flights from CA $763
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city centre57 min
Flights from CA $763

Frequently asked questions

How much does a flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) cost?
One-way flights typically cost between $1,962 and $5,865 and return flights often range between $1,962 and $5,865. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
How do I find cheap flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
To find a cheap flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
There are approximately 16 connecting flights per day from Ottawa Macdonald-Cartier Intl. (YOW) to Baltimore Washington Intl. Thurgood Marshall (BWI). Some common connection points include Pearson Intl. (YYZ), O'Hare Intl. (ORD), and Pierre Elliott Trudeau Intl. (YUL).
What is the earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The earliest flight from Ottawa Macdonald-Cartier International Airport (YOW) to Baltimore Washington International Thurgood Marshall Airport (BWI) typically departs at approximately 5:00 AM local time. This service is operated by Air Canada and Delta. This is a seasonal service active in March. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
If you're flying from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall), you'll typically find the most flights on a Tuesday, with around 25 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Air Canada, United Airlines, and Porter Airlines. Flight schedules are consistent throughout the week, so you'll find plenty of options regardless of the day you choose to fly.
What are the most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The most popular departure times for flights from Ottawa Macdonald-Cartier Intl. (YOW) to Baltimore Washington Intl. Thurgood Marshall (BWI) are in the morning, from 6am to 9am. About 44% of passengers prefer this time. Many major carriers, including United Airlines, Porter Airlines and American Airlines, offer flights during this window. This timing works well because it allows you to get an early start on your travel day and arrive at your destination with plenty of time.
How long does it take to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Flights from YOW to BWI with one stop typically take around 15 hours, covering approximately 428 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Select the "Business class" and "First class" filters when looking for YOW to BWI flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight with Expedia?
It's easy to earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Baltimore from Macdonald-Cartier Intl. (YOW)?
From Macdonald-Cartier Intl. (YOW), you can fly directly into Baltimore Washington Intl. Thurgood Marshall (BWI) to reach Baltimore. Some flights may connect through major hubs like Pearson Intl. (YYZ), Liberty Intl. (EWR), Pierre Elliott Trudeau Intl. (YUL) before reaching Baltimore. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) at the last minute?
Typically, booking a last minute flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight and hotel package?
Securing a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities 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 Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
If you booked your Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) 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 ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
American Airlines, United, WestJet
Roundtrip price
CA $709
Distance
684 km

Book with confidence

Ottawa to Baltimore Flights

The easy way to book your flights from Ottawa to Baltimore 

With Expedia, it’s simple to find and book flights to Baltimore from Ottawa whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Baltimore Washington Intl. Thurgood Marshall, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ottawa to Baltimore today, tomorrow, or this week.  

 

Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to Baltimore Washington Intl. Thurgood Marshall, BWI 

Sort your search results by price to find great deals on your flight from Ottawa to Baltimore—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Baltimore from Ottawa currently is just CA $710 rising to CA $1,111.  

Here are more money-saving tips: 

  • Fly in May when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Baltimore  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Baltimore from Ottawa 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Baltimore with Expedia today.

Ottawa to Baltimore Flights

Explore a world of travel with Expedia

*Available to Expedia members.