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$218+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BWI
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
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 June 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/107:00 am
YOW
-
BWI
1 stop17h 23m
Multiple Airlines
Mon 10/53:20 pm
BWI
-
YOW
1 stop8h 28m
Multiple Airlines
Deal found 6/26$407
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/107:00 am
YOW
-
BWI
1 stop17h 23m
Multiple Airlines
Thu 10/17:27 pm
BWI
-
YOW
1 stop19h 06m
Multiple Airlines
Deal found 6/26$417
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sat 7/117:00 am
YOW
-
BWI
1 stop17h 23m
Multiple Airlines
Sun 7/191:05 pm
BWI
-
YOW
1 stop25h 52m
Multiple Airlines
Deal found 6/25$426
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/107:00 am
YOW
-
BWI
1 stop17h 23m
Multiple Airlines
Wed 9/301:55 pm
BWI
-
YOW
2 stops34h 25m
Multiple Airlines
Deal found 6/26$430
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/212:10 pm
YOW
-
BWI
2 stops17h 16m
Multiple Airlines
Mon 8/2411:09 am
BWI
-
YOW
1 stop12h 39m
Multiple Airlines
Deal found 6/26$433
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Mon 8/37:00 am
YOW
-
BWI
1 stop29h 10m
Multiple Airlines
Fri 8/149:38 pm
BWI
-
YOW
1 stop16h 55m
Multiple Airlines
Deal found 6/22$436
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/107:00 am
YOW
-
BWI
1 stop17h 23m
Multiple Airlines
Tue 10/69:20 pm
BWI
-
YOW
2 stops20h 03m
Multiple Airlines
Deal found 6/26$446
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/244:15 pm
YOW
-
BWI
1 stop7h 44m
Multiple Airlines
Tue 8/256:28 pm
BWI
-
YOW
2 stops17h 57m
Multiple Airlines
Deal found 6/26$447
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 11/57:05 am
YOW
-
BWI
1 stop29h 55m
Multiple Airlines
Mon 11/99:50 pm
BWI
-
YOW
1 stop18h 54m
Multiple Airlines
Deal found 6/26$451
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sat 7/117:00 am
YOW
-
BWI
1 stop17h 23m
Multiple Airlines
Sat 7/186:25 am
BWI
-
YOW
2 stops14h 15m
Multiple Airlines
Deal found 6/25$456

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 June 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$407
(Kiwi.com)

One-way from

$218
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$405
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. 12% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 27, 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

Wed 7/29

2:10 pm-7:26 am

2 stops17h 16m

Baltimore/Washington

Thu 7/30

9:28 pm-2:35 pm

1 stop17h 07m

$493

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 8/28

7:00 am-2:35 pm

1 stop7h 35m

Baltimore/Washington

Mon 8/31

9:32 pm-5:23 pm

2 stops19h 51m

$564

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 9/18

6:25 am-6:13 pm

1 stop11h 48m

Baltimore/Washington

Tue 9/22

6:00 am-5:16 pm

1 stop11h 16m

$649
Quickest round-trip

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 10/31

6:15 am-1:45 pm

1 stop7h 30m

Baltimore/Washington

Tue 11/3

10:10 am-9:16 pm

1 stop11h 06m

$738

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 7/12

5:20 pm-9:27 am

1 stop16h 07m

Baltimore/Washington

Mon 10/5

12:10 pm-9:35 pm

1 stop9h 25m

$782

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 7/23

6:55 am-4:41 pm

2 stops9h 46m

Baltimore/Washington

Sun 7/26

6:08 am-5:35 pm

2 stops11h 27m

$792

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 10/31

5:40 am-3:50 pm

2 stops10h 10m

Baltimore/Washington

Tue 11/3

10:00 am-12:42 am

2 stops14h 42m

$797

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 7/9

6:55 am-4:41 pm

2 stops9h 46m

Baltimore/Washington

Sun 7/12

6:08 am-5:35 pm

2 stops11h 27m

$812
Cheapest one-way

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 8/3

7:00 am-12:10 pm

1 stop29h 10m

$218

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sat 7/18

7:00 am-11:17 pm

2 stops16h 17m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 18 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.

  • How long is the flight from Ottawa to Baltimore?

    Departing from Ottawa to Baltimore will take you 11h 48m. The distance between Ottawa and Baltimore is about 427 mi.

  • 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.

See more FAQs

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