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$188+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BWI
May 25 — Jun 11
Mon 5/25
Mon 6/1
1 adult, Economy
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Cheap 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 April 25, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/114:20 pm
YOW
-
BWI
2 stops23h 26m
Multiple Airlines
Sat 5/166:02 pm
BWI
-
YOW
1 stop20h 58m
Multiple Airlines
Deal found 4/24$351
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/227:00 am
YOW
-
BWI
2 stops37h 18m
Multiple Airlines
Sun 5/311:10 pm
BWI
-
YOW
1 stop25h 50m
Multiple Airlines
Deal found 4/20$385
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Sun 5/316:25 pm
YOW
-
BWI
2 stops38h 50m
Multiple Airlines
Fri 6/57:48 pm
BWI
-
YOW
1 stop19h 12m
Multiple Airlines
Deal found 4/23$387
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/97:00 am
YOW
-
BWI
1 stop10h 07m
Multiple Airlines
Mon 5/116:02 pm
BWI
-
YOW
2 stops23h 33m
Multiple Airlines
Deal found 4/22$392
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/282:20 pm
YOW
-
BWI
2 stops17h 23m
Multiple Airlines
Sat 5/306:30 am
BWI
-
YOW
1 stop8h 30m
Multiple Airlines
Deal found 4/22$403
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Thu 6/117:00 am
YOW
-
BWI
2 stops13h 35m
Multiple Airlines
Thu 6/186:09 pm
BWI
-
YOW
1 stop22h 44m
Multiple Airlines
Deal found 4/23$407
This Mytrip deal was found by Cheapflights users on 4/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:00 am
YOW
-
BWI
2 stops16h 29m
Multiple Airlines
Fri 6/127:10 am
BWI
-
YOW
2 stops17h 10m
Multiple Airlines
Deal found 4/23$410
This Mytrip deal was found by Cheapflights users on 4/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 am
YOW
-
BWI
2 stops16h 29m
Multiple Airlines
Wed 6/36:30 am
BWI
-
YOW
2 stops13h 35m
Multiple Airlines
Deal found 4/24$426

Find 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 April 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$351
(Kiwi.com)

One-way from

$188
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$369
Provider with most accurate pricing for Ottawa-Baltimore/Washington flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Baltimore/Washington flights.
Search Deals
From Ottawa to Baltimore/Washington
Search Deals
One-way flight from Ottawa to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 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 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 April 25, 2026.
Use the filters below to find and compare flights from Ottawa to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 5/22

7:00 am-7:06 pm

1 stop12h 06m

Baltimore/Washington

Sun 5/31

1:10 pm-3:00 pm

1 stop25h 50m

$388

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 7/3

2:20 pm-7:45 am

2 stops17h 25m

Baltimore/Washington

Tue 7/14

6:00 pm-4:53 pm

1 stop22h 53m

$464

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 6/5

7:00 am-8:35 am

3 stops25h 35m

Baltimore/Washington

Mon 6/8

7:48 pm-12:25 am

3 stops28h 37m

$497

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 6/16

6:25 pm-11:29 pm

3 stops29h 04m

Baltimore/Washington

Sat 6/20

9:09 am-5:35 pm

2 stops32h 26m

$511

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 7/4

2:20 pm-7:45 am

2 stops17h 25m

Baltimore/Washington

Tue 7/14

6:00 pm-4:53 pm

1 stop22h 53m

$524

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 5/31

7:00 am-11:29 pm

3 stops16h 29m

Baltimore/Washington

Fri 6/5

1:43 pm-12:20 am

2 stops34h 37m

$548

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 5/23

7:00 am-5:47 pm

2 stops10h 47m

Baltimore/Washington

Sat 5/30

8:10 pm-2:55 pm

2 stops18h 45m

$591

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 6/3

5:20 pm-12:33 am

1 stop7h 13m

Baltimore/Washington

Sat 6/6

10:44 am-9:35 pm

1 stop10h 51m

$656
Quickest round-trip

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 6/7

5:20 pm-12:33 am

1 stop7h 13m

Baltimore/Washington

Sun 6/14

6:15 am-1:59 pm

1 stop7h 44m

$657

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 9/9

5:20 pm-12:43 am

1 stop7h 23m

Baltimore/Washington

Fri 9/11

12:30 pm-9:35 pm

1 stop9h 05m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 19 resultsSorted by cheapest first
1
2
  • 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.

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.

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