Find flights
When to book

Cheap flights from Baltimore to Ottawa from C$ 152

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Baltimore to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 October 2025.

Round-trip from

C$ 350

One-way from

C$ 152

Popular in

March

Cheapest in

January

Average price

C$ 592
27/1-29/1
  • 27/1-29/1
  • 4 total stops
  • 34h 17m total
  • Baltimore to Ottawa
Search Deals
27/11
  • 27/11
  • 1 total stop
  • 20h 28m total
  • Baltimore to Ottawa
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Baltimore to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from Baltimore to Ottawa
Explore the most affordable flight options available from Baltimore to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.

Wed 12/116:20 a.m.BWI - YOW
2 stops18h 22mMultiple Airlines
Tue 18/114:15 p.m.YOW - BWI
1 stop23h 32mMultiple Airlines
Deal found 28/10C$ 389
Wed 12/116:20 a.m.BWI - YOW
2 stops18h 22mMultiple Airlines
Mon 17/114:15 p.m.YOW - BWI
1 stop23h 32mMultiple Airlines
Deal found 28/10C$ 397
Thu 13/116:15 a.m.BWI - YOW
2 stops11h 10mMultiple Airlines
Sat 15/114:15 p.m.YOW - BWI
1 stop7h 56mMultiple Airlines
Deal found 27/10C$ 427
Thu 13/116:15 a.m.BWI - YOW
2 stops11h 10mMultiple Airlines
Mon 17/114:15 p.m.YOW - BWI
1 stop23h 32mMultiple Airlines
Deal found 28/10C$ 436
Wed 12/119:36 p.m.BWI - YOW
1 stop19h 49mMultiple Airlines
Wed 19/115:40 a.m.YOW - BWI
2 stops17h 27mMultiple Airlines
Deal found 28/10C$ 443
Mon 8/128:45 a.m.BWI - YOW
1 stop15h 40mMultiple Airlines
Fri 12/123:00 p.m.YOW - BWI
2 stops16h 42mMultiple Airlines
Deal found 27/10C$ 448
Wed 12/116:20 a.m.BWI - YOW
2 stops18h 22mMultiple Airlines
Thu 20/114:15 p.m.YOW - BWI
1 stop17h 53mMultiple Airlines
Deal found 28/10C$ 473
Fri 14/115:50 a.m.BWI - YOW
2 stops11h 35mMultiple Airlines
Tue 18/114:15 p.m.YOW - BWI
1 stop23h 32mMultiple Airlines
Deal found 28/10C$ 488

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 October 2025.
Use the filters below to find and compare flights from Baltimore to Ottawa that are best for you.

Fly from

Baltimore

Fly to

Ottawa

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 27/1

5:10 a.m.-5:13 p.m.

2 stops12h 03m

Ottawa

Thu 29/1

4:20 p.m.-8:50 a.m.

1 stop16h 30m

C$ 394

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 13/11

6:15 a.m.-5:25 p.m.

2 stops11h 10m

Ottawa

Sat 15/11

4:15 p.m.-12:11 a.m.

1 stop7h 56m

C$ 427

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 8/12

8:45 a.m.-12:25 a.m.

1 stop15h 40m

Ottawa

Fri 12/12

3:00 p.m.-7:42 a.m.

2 stops16h 42m

C$ 448

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 13/11

6:15 a.m.-5:25 p.m.

2 stops11h 10m

Ottawa

Thu 20/11

4:15 p.m.-10:08 a.m.

1 stop17h 53m

C$ 511

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 12/11

6:20 a.m.-5:25 p.m.

1 stop11h 05m

Ottawa

Sat 15/11

9:25 a.m.-12:11 a.m.

2 stops14h 46m

C$ 559

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sat 15/11

11:29 a.m.-12:35 p.m.

2 stops25h 06m

Ottawa

Tue 18/11

4:15 p.m.-12:55 p.m.

2 stops20h 40m

C$ 583

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 27/11

8:45 p.m.-5:13 p.m.

1 stop20h 28m

C$ 152

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 19/11

9:36 p.m.-5:25 p.m.

1 stop19h 49m

C$ 165

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 11/12

7:06 p.m.-12:25 a.m.

1 stop29h 19m

C$ 172

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 12/12

8:37 a.m.-9:54 p.m.

2 stops13h 17m

C$ 186

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 12 results
1
2

Best time to book a flight from Baltimore to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Ottawa

What is the cheapest month to book a flight from Baltimore to Ottawa?

Currently, September is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of C$ 158). Flying from Baltimore to Ottawa in June is currently the most expensive (average of C$ 299). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Baltimore to Ottawa that include hotel bookings?

    Yes. In addition to deals on Baltimore to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Ottawa.

  • Can I find deals for business class flights from Baltimore to Ottawa?

    Yes. Cheapflights offers flight deals from Baltimore to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Ottawa?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of C$ 158). Flying from Baltimore to Ottawa in June is currently the most expensive (average of C$ 299). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Baltimore to Pearson Intl flights
Philadelphia to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Philadelphia to Toronto Island flights
Dulles Intl to Ottawa flights
Baltimore to Toronto Island flights
Reagan-National to Ottawa flights
Reagan-National to Toronto Island flights
Philadelphia to Ottawa flights
Philadelphia to Hamilton flights
Dulles Intl to Hamilton flights
Dulles Intl to Sault Ste Marie flights
Dulles Intl to Thunder Bay flights
Dulles Intl to London flights
Dulles Intl to Kingston flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Baltimore to Ottawa?

Cheapflights helps you search for flights from Baltimore to Ottawa via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Baltimore to Ottawa?

Cheapflights helps you find that perfect flight to Ottawa from Baltimore by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Baltimore to Ottawa with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Baltimore to Ottawa, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Baltimore to Ottawa become cheaper?

Of course! You can now track prices for flights from Baltimore to Ottawa and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.