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Cheap flights from Baltimore to Ottawa from $172

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to Ottawa departing on 9/20. 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

Find the cheapest flights from Baltimore to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:29 pm - 4:44 pmBWI  Baltimore/Washington-YOW Ottawa
19h 15m2 stops Atlanta Hartsfield-Jackson Orlando
Multiple Airlines Logo
8:00 am - 6:32 pmYOW  Ottawa-BWI Baltimore/Washington
10h 32m1 stop Orlando
$427Multiple Airlines
Sun, Oct 25 - Fri, Oct 30
Multiple Airlines Logo
1:55 pm - 3:07 pmBWI  Baltimore/Washington-YOW Ottawa
25h 12m1 stop Fort Lauderdale
Multiple Airlines Logo
7:00 am - 8:31 amYOW  Ottawa-BWI Baltimore/Washington
25h 31m1 stop Orlando
$438Multiple Airlines
Fri, Sep 18 - Fri, Sep 25
Multiple Airlines Logo
9:52 pm - 4:44 pmBWI  Baltimore/Washington-YOW Ottawa
18h 52m1 stop Orlando
Multiple Airlines Logo
8:00 am - 6:32 pmYOW  Ottawa-BWI Baltimore/Washington
10h 32m1 stop Orlando
$441Multiple Airlines
Sun, Oct 25 - Fri, Oct 30
Multiple Airlines Logo
1:55 pm - 3:07 pmBWI  Baltimore/Washington-YOW Ottawa
25h 12m1 stop Fort Lauderdale
Multiple Airlines Logo
2:10 pm - 2:11 pmYOW  Ottawa-BWI Baltimore/Washington
24h 01m2 stops Newark Orlando
$452Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
6:28 pm - 12:20 pmBWI  Baltimore/Washington-YOW Ottawa
17h 52m2 stops Atlanta Hartsfield-Jackson Newark
Multiple Airlines Logo
4:15 pm - 9:30 pmYOW  Ottawa-BWI Baltimore/Washington
29h 15m1 stop Orlando
$455Multiple Airlines
Wed, Sep 2 - Mon, Sep 7
Multiple Airlines Logo
1:55 pm - 3:07 pmBWI  Baltimore/Washington-YOW Ottawa
25h 12m1 stop Fort Lauderdale
Multiple Airlines Logo
2:10 pm - 9:25 amYOW  Ottawa-BWI Baltimore/Washington
19h 15m2 stops Newark Atlanta Hartsfield-Jackson
$463Multiple Airlines
Fri, Sep 18 - Fri, Sep 25
Multiple Airlines Logo
3:29 pm - 11:48 pmBWI  Baltimore/Washington-YOW Ottawa
8h 19m1 stop Orlando
Multiple Airlines Logo
7:00 am - 8:57 pmYOW  Ottawa-BWI Baltimore/Washington
13h 57m1 stop Orlando
$476Multiple Airlines
Mon, Oct 19 - Fri, Oct 23
Multiple Airlines Logo
9:32 pm - 4:15 pmBWI  Baltimore/Washington-YOW Ottawa
18h 43m2 stops Atlanta Hartsfield-Jackson Newark
Multiple Airlines Logo
7:00 am - 2:11 pmYOW  Ottawa-BWI Baltimore/Washington
7h 11m1 stop Orlando
$476Multiple Airlines
Tue, Sep 8 - Sat, Sep 12
Multiple Airlines Logo
10:22 am - 3:07 pmBWI  Baltimore/Washington-YOW Ottawa
28h 45m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
Multiple Airlines Logo
7:00 am - 6:09 pmYOW  Ottawa-BWI Baltimore/Washington
11h 09m1 stop Orlando
$477Multiple Airlines
Sun, Sep 20 - Sat, Sep 26
Multiple Airlines Logo
10:20 am - 5:35 amBWI  Baltimore/Washington-YOW Ottawa
19h 15m2 stops Chicago O'Hare Intl Calgary
Multiple Airlines Logo
4:15 pm - 8:31 amYOW  Ottawa-BWI Baltimore/Washington
16h 16m1 stop Orlando
$477Multiple Airlines
Fri, Sep 18 - Mon, Sep 21

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WestJet flights from Baltimore to Ottawa

Our best WestJet deals on Baltimore to Ottawa flight tickets
WestJet
Aug 20
BWI12:30 pmBaltimore/Washington
17h 05m
2 stops
YOW5:35 amOttawa
Aug 24
YOW6:00 amOttawa
17h 18m
2 stops
BWI11:18 pmBaltimore/Washington
$1,050
WestJet
Aug 21
BWI6:05 amBaltimore/Washington
18h 35m
2 stops
YOW12:40 amOttawa
Aug 22
YOW6:55 amOttawa
28h 02m
2 stops
BWI10:57 amBaltimore/Washington
$1,058
WestJet
Aug 14
BWI11:25 amBaltimore/Washington
13h 15m
2 stops
YOW12:40 amOttawa
Oct 10
YOW6:55 amOttawa
14h 40m
2 stops
BWI9:35 pmBaltimore/Washington
$1,084

American Airlines flights from Baltimore to Ottawa

Our best American Airlines deals on Baltimore to Ottawa flight tickets
American Airlines
Sep 22
BWI6:01 amBaltimore/Washington
8h 54m
2 stops
YOW2:55 pmOttawa
Sep 29
YOW7:00 amOttawa
12h 33m
2 stops
BWI7:33 pmBaltimore/Washington
$725
American Airlines
Sep 16
BWI10:39 amBaltimore/Washington
9h 21m
2 stops
YOW8:00 pmOttawa
Sep 22
YOW7:00 amOttawa
10h 41m
2 stops
BWI5:41 pmBaltimore/Washington
$759
American Airlines
Sep 18
BWI7:39 amBaltimore/Washington
12h 21m
2 stops
YOW8:00 pmOttawa
Sep 21
YOW7:00 amOttawa
27h 07m
2 stops
BWI10:07 amBaltimore/Washington
$768

momondo Fare Finder

 
Customize your flight search to find flights from Baltimore to Ottawa 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 August 8, 2026.
Use the filters below to find and compare flights from Baltimore to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Sun 10/25

9:29 pm-4:44 pm

2 stops19h 15m

Ottawa

Fri 10/30

8:00 am-6:32 pm

1 stop10h 32m

$427

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Fri 9/18

1:55 pm-3:07 pm

1 stop25h 12m

Ottawa

Fri 9/25

7:00 am-8:31 am

1 stop25h 31m

$438

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Sun 10/25

9:52 pm-4:44 pm

1 stop18h 52m

Ottawa

Fri 10/30

8:00 am-6:32 pm

1 stop10h 32m

$441

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Fri 9/18

1:55 pm-3:07 pm

1 stop25h 12m

Ottawa

Tue 9/22

2:10 pm-2:11 pm

2 stops24h 01m

$452

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Wed 9/2

6:28 pm-12:20 pm

2 stops17h 52m

Ottawa

Mon 9/7

4:15 pm-9:30 pm

1 stop29h 15m

$455

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Fri 9/18

1:55 pm-3:07 pm

1 stop25h 12m

Ottawa

Fri 9/25

2:10 pm-9:25 am

2 stops19h 15m

$463
Quickest round-trip

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Mon 10/19

3:29 pm-11:48 pm

1 stop8h 19m

Ottawa

Fri 10/23

7:00 am-8:57 pm

1 stop13h 57m

$476

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Tue 9/8

9:32 pm-4:15 pm

2 stops18h 43m

Ottawa

Sat 9/12

7:00 am-2:11 pm

1 stop7h 11m

$476

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Sun 9/20

10:22 am-3:07 pm

2 stops28h 45m

Ottawa

Sat 9/26

7:00 am-6:09 pm

1 stop11h 09m

$477

BaltimoreOttawa

BWI Baltimore/Washington - YOW Ottawa

BWIYOW

Baltimore/Washington

Fri 9/18

10:20 am-5:35 am

2 stops19h 15m

Ottawa

Mon 9/21

4:15 pm-8:31 am

1 stop16h 16m

$477

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 Ottawa from

How to get the cheapest flight ticket from Baltimore to Ottawa

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 is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from Baltimore to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $479. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Monday is $568.

What is the cheapest time of day to depart on your flight to Ottawa?

In the morning is the cheapest time of day to fly from Baltimore to Ottawa when you can find flight prices for as low as $486. Flying to Ottawa in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $983 on average. Flights to Ottawa from Baltimore in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Baltimore to Ottawa

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

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

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

Fastest flight time

7h 57m

Direct flights

None
The fastest flight from Baltimore to Ottawa takes 7h 57m
There are no direct flights from Baltimore to Ottawa. There are no popular flight routes from Baltimore to Ottawa.
Search flight deals

Frequently asked questions about flying from Baltimore to Ottawa

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

    The straight-line distance from Baltimore/Washington to Ottawa is 425.5 mi. Flights usually cover this in 7h 57m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Baltimore/Washington Airport to Ottawa Airport were last updated today.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Pembroke
Petawawa
Perth
Calabogie
Smiths Falls
Prescott
Wakefield

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Ottawa from Baltimore which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ottawa from Baltimore.

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

Yes momondo offers price alerts on flights to Ottawa from Baltimore. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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