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$175+ Cheap flights from Ottawa (YOW) to Baltimore (BWI)

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BWI
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheap flight deals from Ottawa to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Baltimore (BWI). 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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$316
(Kiwi.com)

One-way from

$175
(Trip.com)

Popular in

February

Cheapest in

April

Average price

$592
Provider with most accurate pricing for Ottawa-Baltimore/Washington flight deals.
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Provider most trusted by Cheapflights users for Ottawa-Baltimore/Washington flights.
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From Ottawa to Baltimore/Washington
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One-way flight from Ottawa to Baltimore/Washington
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Highest demand for flights based on searches. 26% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ottawa to Baltimore

Cheapest flights from Ottawa to Baltimore
Explore the most affordable flight options available from Ottawa to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/25. 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 11/29:30 amYOW - BWI
1 stop23h 04mMultiple Airlines
Thu 11/69:29 amBWI - YOW
1 stop7h 44mMultiple Airlines
Deal found 9/25$321
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 10/204:25 pmYOW - BWI
1 stop17h 55mMultiple Airlines
Wed 10/228:00 amBWI - YOW
1 stop8h 57mMultiple Airlines
Deal found 9/24$355
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 11/95:40 amYOW - BWI
2 stops53h 45mMultiple Airlines
Wed 11/125:10 amBWI - YOW
1 stop12h 15mMultiple Airlines
Deal found 9/24$366
This Mytrip deal was found by Cheapflights users on 9/25. 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.
Sat 11/84:20 pmYOW - BWI
3 stops26h 57mMultiple Airlines
Tue 11/113:31 pmBWI - YOW
2 stops16h 53mMultiple Airlines
Deal found 9/25$371
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 10/213:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Wed 10/226:45 pmBWI - YOW
2 stops20h 11mMultiple Airlines
Deal found 9/25$387
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 10/133:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Sun 10/196:53 amBWI - YOW
1 stop10h 04mMultiple Airlines
Deal found 9/24$404
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 11/34:15 pmYOW - BWI
1 stop18h 46mMultiple Airlines
Thu 11/65:10 amBWI - YOW
1 stop12h 15mMultiple Airlines
Deal found 9/23$418

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Baltimore 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 September 25, 2025.
Use the filters below to find and compare flights from Ottawa to Baltimore that are best for you.

Fly from

Ottawa

Fly to

Baltimore

Route

Depart

Return

Price

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 11/2

9:30 am-8:34 am

1 stop23h 04m

Baltimore/Washington

Thu 11/6

9:29 am-5:13 pm

1 stop7h 44m

$321

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 11/8

10:00 am-7:28 am

2 stops21h 28m

Baltimore/Washington

Tue 11/11

2:30 pm-5:25 pm

1 stop26h 55m

$355

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 11/9

5:40 am-11:25 am

2 stops53h 45m

Baltimore/Washington

Wed 11/12

5:10 am-5:25 pm

1 stop12h 15m

$366

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 10/21

3:50 pm-11:01 am

1 stop19h 11m

Baltimore/Washington

Wed 10/22

6:45 pm-2:56 pm

2 stops20h 11m

$387

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 10/13

3:50 pm-11:01 am

1 stop19h 11m

Baltimore/Washington

Sun 10/19

6:53 am-4:57 pm

1 stop10h 04m

$404

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 11/3

4:15 pm-11:01 am

1 stop18h 46m

Baltimore/Washington

Thu 11/6

5:10 am-5:25 pm

1 stop12h 15m

$418

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 10/22

4:25 pm-12:40 pm

1 stop20h 15m

$189

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 10/24

4:25 pm-9:21 am

1 stop16h 56m

$189

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 10/26

9:30 am-8:34 am

1 stop23h 04m

$189

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 10/25

4:25 pm-11:01 am

2 stops18h 36m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 12 results
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Compare providers for flights from Ottawa to Baltimore

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 Ottawa to Baltimore in September.
ProviderPrice AccuracyTrust Score*
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 Ottawa-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Baltimore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-Baltimore 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 Ottawa-Baltimore 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 Ottawa to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Ottawa 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 Ottawa to Baltimore

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

Currently, August is the cheapest month in which you can book a flight from Ottawa to Baltimore (average of $241). Flying from Ottawa to Baltimore in March is currently the most expensive (average of $290). 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.

How much does it cost to fly round-trip from Ottawa to Baltimore?

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Baltimore. 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 Ottawa to Baltimore that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Baltimore 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 Ottawa to Baltimore?

    Currently, August is the cheapest month in which you can book a flight from Ottawa to Baltimore (average of $241). Flying from Ottawa to Baltimore in March is currently the most expensive (average of $290). 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

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Alternative routes for Ottawa to Baltimore

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