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$140+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Cheap 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 April 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/307:10 am
BWI
-
YOW
1 stop7h 23m
Multiple Airlines
Sat 6/67:00 am
YOW
-
BWI
1 stop16h 29m
Multiple Airlines
Deal found 4/15$333
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Fri 5/297:48 pm
BWI
-
YOW
1 stop19h 12m
Multiple Airlines
Tue 6/27:00 am
YOW
-
BWI
2 stops12h 06m
Multiple Airlines
Deal found 4/13$354
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/134:33 pm
BWI
-
YOW
2 stops31h 47m
Multiple Airlines
Mon 5/184:20 pm
YOW
-
BWI
1 stop20h 04m
Multiple Airlines
Deal found 4/15$355
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Fri 5/157:10 am
BWI
-
YOW
1 stop7h 23m
Multiple Airlines
Fri 5/227:00 am
YOW
-
BWI
1 stop26h 15m
Multiple Airlines
Deal found 4/15$382
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 5/283:26 pm
BWI
-
YOW
1 stop23h 07m
Multiple Airlines
Thu 6/47:00 am
YOW
-
BWI
2 stops12h 06m
Multiple Airlines
Deal found 4/12$385
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/247:27 pm
BWI
-
YOW
1 stop19h 33m
Multiple Airlines
Wed 5/277:00 am
YOW
-
BWI
2 stops16h 29m
Multiple Airlines
Deal found 4/14$424
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 4/195:30 am
BWI
-
YOW
1 stop11h 55m
Multiple Airlines
Thu 4/234:15 pm
YOW
-
BWI
1 stop17h 00m
Multiple Airlines
Deal found 4/12$433
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:48 pm
BWI
-
YOW
2 stops21h 47m
Multiple Airlines
Mon 5/115:55 pm
YOW
-
BWI
3 stops29h 34m
Multiple Airlines
Deal found 4/15$436

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 April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$333
(Kiwi.com)

One-way from

$140
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$564
Provider with most accurate pricing for Baltimore/Washington-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Ottawa flights.
Search Deals
From Baltimore/Washington to Ottawa
Search Deals
One-way flight from Baltimore/Washington to Ottawa
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from Baltimore to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 6/19

6:10 am-4:53 pm

1 stop10h 43m

Ottawa

Sun 6/21

2:30 pm-10:48 pm

1 stop8h 18m

$506

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 5/22

7:10 am-2:33 pm

1 stop7h 23m

Ottawa

Mon 5/25

2:20 pm-7:43 am

2 stops17h 23m

$739

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sun 5/10

7:27 pm-12:15 pm

2 stops16h 48m

Ottawa

Sun 5/17

9:05 am-11:29 pm

2 stops14h 24m

$759

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 5/28

8:15 am-5:07 pm

1 stop8h 52m

Ottawa

Thu 6/4

6:25 am-1:57 pm

1 stop7h 32m

$851

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 8/7

6:15 am-1:59 pm

1 stop7h 44m

Ottawa

Wed 8/12

5:20 pm-12:43 am

1 stop7h 23m

$851

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 6/3

6:10 am-1:59 pm

1 stop7h 49m

Ottawa

Sun 6/7

10:44 am-5:33 pm

1 stop6h 49m

$851
Quickest round-trip

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 5/29

8:15 am-1:59 pm

1 stop5h 44m

Ottawa

Tue 6/2

5:20 pm-12:33 am

1 stop7h 13m

$851

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 6/1

6:10 am-5:07 pm

1 stop10h 57m

Ottawa

Tue 6/2

10:44 am-12:33 am

1 stop13h 49m

$851

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 5/25

6:10 am-1:59 pm

1 stop7h 49m

Ottawa

Thu 5/28

10:44 am-5:33 pm

1 stop6h 49m

$851

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sat 7/18

10:44 am-5:07 pm

1 stop6h 23m

Ottawa

Wed 7/22

10:44 am-5:33 pm

1 stop6h 49m

$851

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 21 resultsSorted by cheapest first
1
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3

Compare providers for flights from Baltimore to Ottawa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Ottawa in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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.

  • How long is the flight from Baltimore to Ottawa?

    A quick flight from Baltimore to Ottawa can take about 8h 52m. United Airlines provides one of the quickest options available for as low as $851. There are 427 mi between Baltimore and Ottawa.

  • 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.

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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