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Cheap flights from Baltimore to Ottawa from C$ 157

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 January 2026.

Mon 16/212:30 p.m.
BWI
-
YOW
1 stop28h 55m
Multiple Airlines
Wed 18/24:15 p.m.
YOW
-
BWI
1 stop16h 51m
Multiple Airlines
Deal found 27/1C$ 338
Wed 11/312:30 p.m.
BWI
-
YOW
1 stop11h 55m
Multiple Airlines
Wed 18/34:15 p.m.
YOW
-
BWI
1 stop16h 26m
Multiple Airlines
Deal found 26/1C$ 363
Tue 10/26:20 a.m.
BWI
-
YOW
1 stop18h 05m
Multiple Airlines
Wed 11/24:15 p.m.
YOW
-
BWI
1 stop16h 51m
Multiple Airlines
Deal found 27/1C$ 412
Sun 15/28:54 p.m.
BWI
-
YOW
1 stop21h 41m
Multiple Airlines
Wed 18/24:15 p.m.
YOW
-
BWI
1 stop16h 51m
Multiple Airlines
Deal found 27/1C$ 440
Mon 9/29:36 a.m.
BWI
-
YOW
1 stop14h 49m
Multiple Airlines
Tue 10/24:15 p.m.
YOW
-
BWI
1 stop18h 16m
Multiple Airlines
Deal found 27/1C$ 459
Fri 10/44:05 p.m.
BWI
-
YOW
1 stop8h 20m
Multiple Airlines
Mon 27/49:30 a.m.
YOW
-
BWI
1 stop11h 18m
Multiple Airlines
Deal found 26/1C$ 471
Sun 8/29:36 a.m.
BWI
-
YOW
1 stop14h 49m
Multiple Airlines
Wed 11/24:15 p.m.
YOW
-
BWI
1 stop16h 51m
Multiple Airlines
Deal found 27/1C$ 481

Find 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 27 January 2026.

Round-trip from

C$ 338

One-way from

C$ 157

Popular in

December

Cheapest in

January

Average price

C$ 244
16/2-18/2
  • 16/2-18/2
  • 2 total stops
  • 45h 46m total
  • Baltimore to Ottawa
Search Deals
25/3
  • 25/3
  • 1 total stop
  • 18h 05m total
  • Baltimore to Ottawa
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 27 January 2026.
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 10/2

6:20 a.m.-12:25 a.m.

1 stop18h 05m

Ottawa

Wed 11/2

4:15 p.m.-9:06 a.m.

1 stop16h 51m

C$ 412

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 16/2

4:45 p.m.-12:25 a.m.

3 stops31h 40m

Ottawa

Wed 18/2

4:15 p.m.-9:06 a.m.

1 stop16h 51m

C$ 445

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 9/2

9:36 a.m.-12:25 a.m.

1 stop14h 49m

Ottawa

Tue 10/2

4:15 p.m.-10:31 a.m.

1 stop18h 16m

C$ 459

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 10/4

4:05 p.m.-12:25 a.m.

1 stop8h 20m

Ottawa

Mon 27/4

9:30 a.m.-8:48 p.m.

1 stop11h 18m

C$ 471

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 11/3

4:45 p.m.-4:48 p.m.

2 stops24h 03m

Ottawa

Wed 18/3

4:15 p.m.-8:41 a.m.

1 stop16h 26m

C$ 490

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sat 7/2

1:00 p.m.-12:25 a.m.

1 stop11h 25m

Ottawa

Wed 11/2

4:15 p.m.-9:06 a.m.

1 stop16h 51m

C$ 522

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 16/4

9:43 p.m.-12:25 a.m.

1 stop26h 42m

Ottawa

Mon 20/4

7:00 a.m.-5:03 p.m.

1 stop10h 03m

C$ 531

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sun 8/2

9:36 a.m.-12:25 a.m.

1 stop14h 49m

Ottawa

Tue 10/2

7:00 a.m.-6:59 p.m.

2 stops11h 59m

C$ 533

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 25/3

6:20 a.m.-12:25 a.m.

1 stop18h 05m

C$ 157

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 12/3

6:20 a.m.-12:25 a.m.

1 stop18h 05m

C$ 178

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 14 results
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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, March is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of C$ 153). Flying from Baltimore to Ottawa in December is currently the most expensive (average of C$ 303). 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, March is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of C$ 153). Flying from Baltimore to Ottawa in December is currently the most expensive (average of C$ 303). 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
Pembroke
Wakefield

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Alternative routes for Baltimore to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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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?

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