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Cheap flights from Ottawa to Baltimore from C$ 290

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BWI
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Baltimore

Enter your travel dates to find the best prices.

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 26 January 2026.

Mon 23/27:00 a.m.
YOW
-
BWI
1 stop26h 06m
Multiple Airlines
Mon 2/32:58 p.m.
BWI
-
YOW
1 stop9h 04m
Multiple Airlines
Deal found 26/1C$ 367
Wed 4/37:00 a.m.
YOW
-
BWI
1 stop10h 46m
Multiple Airlines
Wed 11/312:30 p.m.
BWI
-
YOW
1 stop11h 55m
Multiple Airlines
Deal found 25/1C$ 423
Thu 26/23:05 p.m.
YOW
-
BWI
2 stops20h 12m
Multiple Airlines
Sun 1/35:08 p.m.
BWI
-
YOW
1 stop30h 54m
Multiple Airlines
Deal found 25/1C$ 520
Sun 26/47:00 a.m.
YOW
-
BWI
1 stop16h 59m
Multiple Airlines
Thu 30/411:57 a.m.
BWI
-
YOW
1 stop5h 02m
Multiple Airlines
Deal found 26/1C$ 530
Fri 27/39:30 a.m.
YOW
-
BWI
1 stop8h 13m
Multiple Airlines
Sun 29/39:43 p.m.
BWI
-
YOW
2 stops26h 19m
Multiple Airlines
Deal found 26/1C$ 604
Tue 5/52:50 p.m.
YOW
-
BWI
1 stop5h 14m
Multiple Airlines
Tue 12/55:20 a.m.
BWI
-
YOW
2 stops12h 15m
Multiple Airlines
Deal found 25/1C$ 633

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 26 January 2026.

Round-trip from

C$ 367

One-way from

C$ 290

Popular in

February

Cheapest in

June

Average price

C$ 599
23/2-2/3
  • 23/2-2/3
  • 2 total stops
  • 35h 10m total
  • Ottawa to Baltimore
Search Deals
2/2
  • 2/2
  • 1 total stop
  • 18h 16m total
  • Ottawa to Baltimore
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 297 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (C$ 144 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 629,999 searches. Data last updated 26 January 2026.
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

Mon 23/2

7:00 a.m.-9:06 a.m.

1 stop26h 06m

Baltimore/Washington

Mon 2/3

2:58 p.m.-12:02 a.m.

1 stop9h 04m

C$ 367

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 4/3

6:45 a.m.-5:46 p.m.

2 stops11h 01m

Baltimore/Washington

Wed 11/3

11:30 a.m.-12:25 a.m.

2 stops12h 55m

C$ 523

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 26/4

7:00 a.m.-11:59 p.m.

1 stop16h 59m

Baltimore/Washington

Thu 30/4

11:57 a.m.-4:59 p.m.

1 stop5h 02m

C$ 530

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 27/3

9:30 a.m.-5:43 p.m.

1 stop8h 13m

Baltimore/Washington

Sun 29/3

9:43 p.m.-12:02 a.m.

2 stops26h 19m

C$ 604

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 26/2

3:05 p.m.-11:17 a.m.

2 stops20h 12m

Baltimore/Washington

Sun 1/3

4:45 p.m.-12:02 a.m.

1 stop7h 17m

C$ 607

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 5/5

2:50 p.m.-8:04 p.m.

1 stop5h 14m

Baltimore/Washington

Tue 12/5

5:20 a.m.-5:35 p.m.

2 stops12h 15m

C$ 633

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 13/2

7:00 a.m.-9:06 a.m.

1 stop26h 06m

Baltimore/Washington

Sun 15/2

4:45 p.m.-11:58 p.m.

1 stop7h 13m

C$ 640

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 3/4

3:55 p.m.-11:03 a.m.

2 stops19h 08m

Baltimore/Washington

Mon 6/4

10:00 p.m.-5:13 p.m.

1 stop19h 13m

C$ 671

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 28/5

2:50 p.m.-8:04 p.m.

1 stop5h 14m

Baltimore/Washington

Sat 6/6

5:20 a.m.-12:20 a.m.

2 stops19h 00m

C$ 675

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 2/2

4:15 p.m.-10:31 a.m.

1 stop18h 16m

C$ 290

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Showing 1-10 of 14 results
1
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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, April is the cheapest month in which you can book a flight from Ottawa to Baltimore (average of C$ 100). Flying from Ottawa to Baltimore in July is currently the most expensive (average of C$ 326). 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.

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Baltimore. Reviews last updated 26 January 2026.
See what other customers who have flown with Porter Airlines and United Airlines from Ottawa to Baltimore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews
Check prices

Boarding

8.2

Overall

7.9

Entertainment

6.9

Food

7.5

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Boarding

8.2

Overall

7.9

Entertainment

6.9

Food

7.5

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,203 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Boarding

8.2

Overall

7.9

Entertainment

6.9

Food

7.5

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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.

  • What are the cheapest airlines flying from Ottawa to Baltimore round-trip?

    Cheapflights users have booked flights from Ottawa to Baltimore round-trip from C$ 330. Another airline that can offer you cheap pricing is United Airlines. Porter Airlines is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • 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, April is the cheapest month in which you can book a flight from Ottawa to Baltimore (average of C$ 100). Flying from Ottawa to Baltimore in July is currently the most expensive (average of C$ 326). 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

Browse thousands of different options on Cheapflights for your next trip

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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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Toronto Island to Reagan-National flights
Toronto Island to Baltimore flights
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Ottawa to Philadelphia flights
Thunder Bay to Dulles Intl flights
London to Dulles Intl flights
London to Reagan-National flights
London to Baltimore flights
Hamilton to Reagan-National flights

Top 2 airlines flying from Ottawa to Baltimore

Discover the top 2 airlines that operate flights from Ottawa to Baltimore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 330AverageC$ 342FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 427AverageC$ 875FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ottawa to Baltimore?

Cheapflights helps you search for flights from Ottawa to Baltimore via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Baltimore?

Cheapflights helps you find that perfect flight to Baltimore from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ottawa to Baltimore with no change fees?

Need flexible booking options for your flight to Baltimore from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to Baltimore become cheaper?

Yes! Start tracking prices for Ottawa to Baltimore flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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