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Cheap flights from Ottawa to Washington, D.C. from $188

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 4/20. 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
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 9:17 am
YOW
-
BWI
26h 17m
1 stop
Multiple Airlines Logo
5:53 pm - 12:15 pm
BWI
-
YOW
18h 22m
2 stops
$336Multiple Airlines
Wed, Apr 22 - Sat, May 2
Multiple Airlines Logo
4:15 pm - 8:43 am
YOW
-
BWI
16h 28m
1 stop
Multiple Airlines Logo
6:35 am - 4:59 pm
BWI
-
YOW
10h 24m
1 stop
$339Multiple Airlines
Fri, Apr 17 - Mon, Apr 20
Multiple Airlines Logo
7:00 am - 9:15 am
YOW
-
BWI
26h 15m
1 stop
Multiple Airlines Logo
5:30 am - 5:25 pm
BWI
-
YOW
11h 55m
1 stop
$342Multiple Airlines
Mon, Apr 20 - Wed, Apr 22
Multiple Airlines Logo
7:00 am - 9:17 am
YOW
-
BWI
26h 17m
1 stop
Multiple Airlines Logo
9:46 pm - 12:15 pm
BWI
-
YOW
38h 29m
2 stops
$345Multiple Airlines
Wed, Apr 22 - Fri, May 1
Multiple Airlines Logo
4:15 pm - 8:43 am
YOW
-
BWI
16h 28m
1 stop
Multiple Airlines Logo
9:59 pm - 4:59 pm
BWI
-
YOW
19h 00m
1 stop
$346Multiple Airlines
Fri, Apr 17 - Sun, Apr 19
Multiple Airlines Logo
7:00 am - 9:15 am
YOW
-
BWI
26h 15m
1 stop
Multiple Airlines Logo
9:25 pm - 5:35 pm
BWI
-
YOW
20h 10m
2 stops
$351Multiple Airlines
Mon, Apr 20 - Tue, May 5
Multiple Airlines Logo
7:00 am - 8:43 am
YOW
-
BWI
25h 43m
1 stop
Multiple Airlines Logo
5:49 pm - 12:15 pm
BWI
-
YOW
42h 26m
2 stops
$354Multiple Airlines
Fri, Apr 24 - Wed, Apr 29
Multiple Airlines Logo
4:15 pm - 9:37 am
YOW
-
BWI
17h 22m
1 stop
Multiple Airlines Logo
8:44 pm - 5:25 pm
BWI
-
YOW
20h 41m
2 stops
$361Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
7:00 am - 8:43 am
YOW
-
BWI
25h 43m
1 stop
Multiple Airlines Logo
6:06 pm - 12:15 pm
BWI
-
YOW
18h 09m
2 stops
$362Multiple Airlines
Fri, Apr 24 - Thu, Apr 30
Multiple Airlines Logo
7:00 am - 9:17 am
YOW
-
BWI
26h 17m
1 stop
Multiple Airlines Logo
9:59 pm - 4:50 pm
BWI
-
YOW
18h 51m
1 stop
$363Multiple Airlines
Wed, Apr 22 - Fri, May 1

United Airlines flights from Ottawa to Baltimore

Our best United Airlines deals on Ottawa to Baltimore flight tickets
United Airlines
Apr 14
YOW6:25 amOttawa
14h 58m
1 stop
BWI9:23 pmBaltimore/Washington
Apr 15
BWI11:08 amBaltimore/Washington
5h 59m
1 stop
YOW5:07 pmOttawa
$724
United Airlines
Apr 7
YOW10:44 amOttawa
6h 49m
1 stop
BWI5:33 pmBaltimore/Washington
Apr 9
BWI11:08 amBaltimore/Washington
5h 59m
1 stop
YOW5:07 pmOttawa
$902
United Airlines
Apr 14
YOW12:00 pmOttawa
9h 23m
2 stops
BWI9:23 pmBaltimore/Washington
Apr 15
BWI6:00 amBaltimore/Washington
7h 59m
1 stop
YOW1:59 pmOttawa
$995

WestJet flights from Ottawa to Baltimore

Our best WestJet deals on Ottawa to Baltimore flight tickets
WestJet
Apr 7
YOW5:40 amOttawa
11h 09m
2 stops
BWI4:49 pmBaltimore/Washington
Apr 25
BWI5:36 pmBaltimore/Washington
23h 59m
2 stops
YOW5:35 pmOttawa
$839
WestJet
Apr 14
YOW5:40 amOttawa
17h 19m
2 stops
BWI10:59 pmBaltimore/Washington
Apr 15
BWI9:00 amBaltimore/Washington
15h 39m
2 stops
YOW12:39 amOttawa
$932
WestJet
Apr 5
YOW5:40 amOttawa
17h 21m
2 stops
BWI11:01 pmBaltimore/Washington
Apr 6
BWI11:56 amBaltimore/Washington
12h 43m
2 stops
YOW12:39 amOttawa
$991

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 April 1, 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 4/22

7:00 am-9:17 am

1 stop26h 17m

Baltimore/Washington

Sat 5/2

5:53 pm-12:15 pm

2 stops18h 22m

$336
Quickest round-trip

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 4/17

4:15 pm-8:43 am

1 stop16h 28m

Baltimore/Washington

Mon 4/20

6:35 am-4:59 pm

1 stop10h 24m

$339

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 4/20

7:00 am-9:15 am

1 stop26h 15m

Baltimore/Washington

Wed 4/22

5:30 am-5:25 pm

1 stop11h 55m

$342

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 4/22

7:00 am-9:17 am

1 stop26h 17m

Baltimore/Washington

Fri 5/1

9:46 pm-12:15 pm

2 stops38h 29m

$345

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 4/17

4:15 pm-8:43 am

1 stop16h 28m

Baltimore/Washington

Sun 4/19

9:59 pm-4:59 pm

1 stop19h 00m

$346

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 4/20

7:00 am-9:15 am

1 stop26h 15m

Baltimore/Washington

Tue 5/5

9:25 pm-5:35 pm

2 stops20h 10m

$351

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 4/24

7:00 am-8:43 am

1 stop25h 43m

Baltimore/Washington

Wed 4/29

5:49 pm-12:15 pm

2 stops42h 26m

$354

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 4/16

4:15 pm-9:37 am

1 stop17h 22m

Baltimore/Washington

Mon 4/20

8:44 pm-5:25 pm

2 stops20h 41m

$361

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Fri 4/24

7:00 am-8:43 am

1 stop25h 43m

Baltimore/Washington

Thu 4/30

6:06 pm-12:15 pm

2 stops18h 09m

$362

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 4/22

7:00 am-9:17 am

1 stop26h 17m

Baltimore/Washington

Fri 5/1

9:59 pm-4:50 pm

1 stop18h 51m

$363

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

15h 23m

Direct flights

None
The fastest flight from Ottawa to Baltimore takes 15h 23m
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. 15h 23m 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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