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Cheap flights from Ottawa to Washington, D.C. from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Washington, D.C. departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:15 pm - 9:06 am
YOW
-
BWI
16h 51m
1 stop
Multiple Airlines Logo
10:19 am - 12:25 am
BWI
-
YOW
14h 06m
1 stop
$306Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Multiple Airlines Logo
7:00 am - 6:45 pm
YOW
-
BWI
11h 45m
1 stop
Multiple Airlines Logo
8:39 pm - 5:13 pm
BWI
-
YOW
20h 34m
1 stop
$318Multiple Airlines
Wed, Mar 25 - Wed, Apr 8
Multiple Airlines Logo
4:15 pm - 9:14 am
YOW
-
BWI
16h 59m
1 stop
Multiple Airlines Logo
9:18 am - 5:13 pm
BWI
-
YOW
7h 55m
1 stop
$320Multiple Airlines
Tue, Mar 24 - Thu, Apr 9
Multiple Airlines Logo
4:15 pm - 9:06 am
YOW
-
BWI
16h 51m
1 stop
Multiple Airlines Logo
4:53 pm - 11:35 am
BWI
-
YOW
18h 42m
2 stops
$321Multiple Airlines
Tue, Mar 3 - Sat, Mar 7
Multiple Airlines Logo
6:45 am - 9:06 am
YOW
-
BWI
26h 21m
2 stops
Multiple Airlines Logo
10:19 am - 12:25 am
BWI
-
YOW
14h 06m
1 stop
$324Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Multiple Airlines Logo
4:15 pm - 9:14 am
YOW
-
BWI
16h 59m
1 stop
Multiple Airlines Logo
10:09 am - 5:13 pm
BWI
-
YOW
7h 04m
1 stop
$327Multiple Airlines
Tue, Mar 24 - Tue, Apr 7
Multiple Airlines Logo
7:00 am - 6:45 pm
YOW
-
BWI
11h 45m
1 stop
Multiple Airlines Logo
12:01 pm - 12:39 am
BWI
-
YOW
12h 38m
2 stops
$331Multiple Airlines
Wed, Mar 25 - Wed, Apr 8
Multiple Airlines Logo
9:30 am - 7:44 pm
YOW
-
BWI
10h 14m
1 stop
Multiple Airlines Logo
10:09 am - 5:13 pm
BWI
-
YOW
7h 04m
1 stop
$333Multiple Airlines
Wed, Mar 25 - Tue, Apr 7
Multiple Airlines Logo
7:00 am - 6:45 pm
YOW
-
BWI
11h 45m
1 stop
Multiple Airlines Logo
9:18 am - 5:13 pm
BWI
-
YOW
7h 55m
1 stop
$335Multiple Airlines
Thu, Mar 26 - Thu, Apr 9
Multiple Airlines Logo
7:00 am - 6:45 pm
YOW
-
BWI
11h 45m
1 stop
Multiple Airlines Logo
10:09 am - 5:13 pm
BWI
-
YOW
7h 04m
1 stop
$337Multiple Airlines
Thu, Mar 26 - Tue, Apr 7

Delta flights from Ottawa to Baltimore

Our best Delta deals on Ottawa to Baltimore flight tickets
Delta
Feb 26
YOW5:40 amOttawa
10h 58m
2 stops
BWI4:38 pmBaltimore/Washington
Mar 2
BWI11:45 amBaltimore/Washington
12h 54m
2 stops
YOW12:39 amOttawa
$882
Delta
Feb 26
YOW5:40 amOttawa
10h 58m
2 stops
BWI4:38 pmBaltimore/Washington
Mar 1
BWI11:45 amBaltimore/Washington
12h 54m
2 stops
YOW12:39 amOttawa
$929

United Airlines flights from Ottawa to Baltimore

Our best United Airlines deals on Ottawa to Baltimore flight tickets
United Airlines
Feb 26
YOW6:20 amOttawa
14h 57m
1 stop
BWI9:17 pmBaltimore/Washington
Mar 1
BWI6:30 amBaltimore/Washington
10h 37m
1 stop
YOW5:07 pmOttawa
$683
United Airlines
Feb 26
YOW6:20 amOttawa
7h 41m
1 stop
BWI2:01 pmBaltimore/Washington
Mar 1
BWI6:30 amBaltimore/Washington
14h 48m
1 stop
YOW9:18 pmOttawa
$712
United Airlines
Feb 26
YOW6:20 amOttawa
7h 41m
1 stop
BWI2:01 pmBaltimore/Washington
Mar 1
BWI6:30 amBaltimore/Washington
14h 48m
2 stops
YOW9:18 pmOttawa
$926

momondo 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, momondo users made 832,500 searches. Data last updated February 12, 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

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 3/9

4:15 pm-9:06 am

1 stop16h 51m

Baltimore/Washington

Mon 3/16

10:19 am-12:25 am

1 stop14h 06m

$306

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 3/25

7:00 am-6:45 pm

1 stop11h 45m

Baltimore/Washington

Wed 4/8

8:39 pm-5:13 pm

1 stop20h 34m

$318

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 3/24

4:15 pm-9:14 am

1 stop16h 59m

Baltimore/Washington

Thu 4/9

9:18 am-5:13 pm

1 stop7h 55m

$320

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 3/3

4:15 pm-9:06 am

1 stop16h 51m

Baltimore/Washington

Sat 3/7

4:53 pm-11:35 am

2 stops18h 42m

$321

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 3/9

6:45 am-9:06 am

2 stops26h 21m

Baltimore/Washington

Mon 3/16

10:19 am-12:25 am

1 stop14h 06m

$324

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 3/24

4:15 pm-9:14 am

1 stop16h 59m

Baltimore/Washington

Tue 4/7

10:09 am-5:13 pm

1 stop7h 04m

$327

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 3/25

7:00 am-6:45 pm

1 stop11h 45m

Baltimore/Washington

Wed 4/8

12:01 pm-12:39 am

2 stops12h 38m

$331

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 3/25

9:30 am-7:44 pm

1 stop10h 14m

Baltimore/Washington

Tue 4/7

10:09 am-5:13 pm

1 stop7h 04m

$333

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 3/26

7:00 am-6:45 pm

1 stop11h 45m

Baltimore/Washington

Thu 4/9

9:18 am-5:13 pm

1 stop7h 55m

$335

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 3/26

7:00 am-6:45 pm

1 stop11h 45m

Baltimore/Washington

Tue 4/7

10:09 am-5:13 pm

1 stop7h 04m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Ottawa to Baltimore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Baltimore?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Baltimore from Ottawa according to our data. Air Canada is the first choice among our users, with 74% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 4 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

When to book flights from Ottawa to Baltimore

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Baltimore according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to Baltimore (YOW to BWI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Baltimore

Fastest flight time

7h 41m

Direct flights

None
The fastest flight from Ottawa to Baltimore takes 7h 41m
There are no direct flights from Ottawa to Baltimore. There are no popular flight routes from Ottawa to Baltimore.
Search flight deals

  • How far is Ottawa to Baltimore/Washington by plane?

    The straight-line distance from Ottawa to Baltimore/Washington is 425.5 mi. 7h 41m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ottawa Airport to Baltimore/Washington Airport?

    Prices for flights from Ottawa Airport to Baltimore/Washington Airport are updated daily.

  • How old do you have to be to fly from Ottawa Airport to Baltimore/Washington Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The travel and health documents required for your trip to Baltimore/Washington Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Baltimore?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ottawa to Baltimore. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ottawa to Baltimore with flexible booking policies on momondo?

All flight searches from Ottawa to Baltimore on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ottawa to Baltimore?

momondo helps you find the best flight between Ottawa and Baltimore by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ottawa to Baltimore right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ottawa to Baltimore flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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