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$185+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BWI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$345
(Mytrip)

One-way from

$185
(Kiwi.com)

Popular in

February

Cheapest in

April

Average price

$794
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. 20% potential increase in price ($150 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($48 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 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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:00 amYOW - BWI
2 stops16h 25mMultiple Airlines
Sun 9/76:50 amBWI - YOW
1 stop10h 30mMultiple Airlines
Deal found 8/14$345
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Tue 9/237:00 amYOW - BWI
2 stops12h 47mMultiple Airlines
Mon 9/296:50 amBWI - YOW
1 stop10h 30mMultiple Airlines
Deal found 8/13$351
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Tue 9/237:00 amYOW - BWI
2 stops12h 47mMultiple Airlines
Wed 10/16:50 amBWI - YOW
1 stop10h 30mMultiple Airlines
Deal found 8/13$353
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/287:00 amYOW - BWI
2 stops14h 11mMultiple Airlines
Sun 10/58:25 amBWI - YOW
1 stop8h 55mMultiple Airlines
Deal found 8/14$368
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 amYOW - BWI
2 stops16h 25mMultiple Airlines
Sun 10/58:25 amBWI - YOW
1 stop8h 55mMultiple Airlines
Deal found 8/14$376
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Fri 10/103:50 pmYOW - BWI
1 stop17h 44mMultiple Airlines
Mon 10/139:55 pmBWI - YOW
1 stop19h 02mMultiple Airlines
Deal found 8/14$381
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Wed 10/157:00 amYOW - BWI
2 stops13h 05mMultiple Airlines
Sat 10/186:45 amBWI - YOW
1 stop10h 35mMultiple Airlines
Deal found 8/14$401
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/153:50 pmYOW - BWI
1 stop19h 11mMultiple Airlines
Wed 9/176:50 amBWI - YOW
2 stops13h 45mMultiple Airlines
Deal found 8/14$408
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:00 amYOW - BWI
3 stops16h 16mMultiple Airlines
Wed 9/246:50 amBWI - YOW
2 stops13h 45mMultiple Airlines
Deal found 8/14$410

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 August 14, 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

Fri 9/5

4:25 pm-3:32 pm

1 stop23h 07m

Baltimore/Washington

Tue 9/9

8:52 pm-8:35 pm

2 stops23h 43m

$345

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 9/4

7:00 am-11:25 pm

2 stops16h 25m

Baltimore/Washington

Sun 9/7

6:50 am-5:20 pm

1 stop10h 30m

$345

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 9/23

7:00 am-7:47 pm

2 stops12h 47m

Baltimore/Washington

Mon 9/29

6:50 am-5:20 pm

1 stop10h 30m

$351

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 9/23

7:00 am-7:47 pm

2 stops12h 47m

Baltimore/Washington

Sat 9/27

6:50 am-5:20 pm

1 stop10h 30m

$351

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 9/23

7:00 am-7:47 pm

2 stops12h 47m

Baltimore/Washington

Wed 10/1

6:50 am-5:20 pm

1 stop10h 30m

$353

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 9/28

7:00 am-9:11 pm

2 stops14h 11m

Baltimore/Washington

Sun 10/5

8:25 am-5:20 pm

1 stop8h 55m

$368

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 10/2

7:00 am-9:20 pm

2 stops14h 20m

Baltimore/Washington

Sun 10/5

8:25 am-5:20 pm

1 stop8h 55m

$376

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 9/20

7:00 am-11:25 pm

2 stops16h 25m

Baltimore/Washington

Wed 9/24

6:50 am-8:35 pm

2 stops13h 45m

$376

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 10/10

3:50 pm-9:34 am

1 stop17h 44m

Baltimore/Washington

Mon 10/13

9:55 pm-4:57 pm

1 stop19h 02m

$381

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 9/27

4:25 pm-9:23 am

1 stop16h 58m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 19 results
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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.

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

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