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$149+ Cheap flights from Baltimore (BWI) to Ottawa (YOW)

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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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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 August 18, 2025.

Round-trip from

$340
(Kiwi.com)

One-way from

$149
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$427
From Baltimore/Washington to Ottawa
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One-way flight from Baltimore/Washington to Ottawa
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Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Baltimore to Ottawa

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 August 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:52 pmBWI - YOW
1 stop20h 05mMultiple Airlines
Tue 10/77:00 amYOW - BWI
2 stops13h 05mMultiple Airlines
Deal found 8/16$340
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:52 pmBWI - YOW
1 stop20h 05mMultiple Airlines
Wed 10/84:25 pmYOW - BWI
1 stop18h 05mMultiple Airlines
Deal found 8/17$344
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:50 amBWI - YOW
1 stop10h 30mMultiple Airlines
Sun 9/143:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Deal found 8/16$354
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:38 amBWI - YOW
2 stops14h 44mMultiple Airlines
Sun 9/213:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Deal found 8/16$360
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:38 amBWI - YOW
2 stops14h 44mMultiple Airlines
Sun 9/213:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Deal found 8/17$376
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:25 amBWI - YOW
1 stop8h 55mMultiple Airlines
Mon 10/133:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Deal found 8/16$384
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:31 pmBWI - YOW
1 stop20h 49mMultiple Airlines
Sun 10/193:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Deal found 8/17$388
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:25 amBWI - YOW
2 stops15h 57mMultiple Airlines
Sun 10/193:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Deal found 8/17$390

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 2,558,603 searches. Data last updated August 18, 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 9/30

8:52 pm-4:57 pm

1 stop20h 05m

Ottawa

Tue 10/7

7:00 am-8:05 pm

2 stops13h 05m

$340

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 10/1

8:52 pm-4:57 pm

1 stop20h 05m

Ottawa

Wed 10/8

4:25 pm-10:30 am

1 stop18h 05m

$344

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sat 9/13

6:50 am-5:20 pm

1 stop10h 30m

Ottawa

Sun 9/14

3:50 pm-11:01 am

1 stop19h 11m

$354

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 9/18

9:38 am-12:22 am

2 stops14h 44m

Ottawa

Sun 9/21

3:50 pm-11:01 am

1 stop19h 11m

$360

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sun 9/14

9:38 am-12:22 am

2 stops14h 44m

Ottawa

Sun 9/21

3:50 pm-11:01 am

1 stop19h 11m

$376

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 10/9

8:25 am-5:20 pm

1 stop8h 55m

Ottawa

Mon 10/13

3:50 pm-11:01 am

1 stop19h 11m

$384

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 10/13

8:31 pm-5:20 pm

1 stop20h 49m

Ottawa

Sun 10/19

3:50 pm-11:01 am

1 stop19h 11m

$388

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 9/26

6:38 am-12:22 am

2 stops17h 44m

$149

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 9/29

7:49 pm-12:22 am

2 stops28h 33m

$152

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 9/30

8:52 pm-4:57 pm

1 stop20h 05m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 14 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, January is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of $294). Flying from Baltimore to Ottawa in September is currently the most expensive (average of $428). 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.

What is the cheapest time of day to fly from BWI to YOW?

Find hourly flight availability from Baltimore to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Baltimore to Ottawa by exploring options for tickets in the morning.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated August 18, 2025.
Read reviews from past customers who have flown Air Canada from Baltimore to Ottawa. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
9,992 reviews

Overall

7.1

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YDF - YYZ

Having excellent support for my mobility issues is so much appreciated. Thank you and your awesome crew.
Air Canada
7.1
Good
9,992 reviews
Air Canada
7.1
Good
9,992 reviews

Overall

7.1

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YDF - YYZ

Having excellent support for my mobility issues is so much appreciated. Thank you and your awesome crew.

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.

  • What is the cheapest airline to fly from Baltimore to Ottawa round-trip?

    Cheapflights users have booked flights from Baltimore to Ottawa round-trip from $480.

  • 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, January is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of $294). Flying from Baltimore to Ottawa in September is currently the most expensive (average of $428). 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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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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Top airline flying from Baltimore to Ottawa

Discover the top airline that operate flights from Baltimore to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$480Average$713FlexibilityNo cancel feeOn-time67%

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