YOW - BWI

C$ 235 Find Cheap Flights from Ottawa to Baltimore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Baltimore departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Baltimore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Baltimore, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Baltimore, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ottawa to Baltimore (YOW-BWI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Baltimore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Baltimore

Tue, 30 Sep - Fri, 3 Oct
 Logo
4:25 p.m. - 3:29 p.m.YOW-BWI
23h 04m1 stop
 Logo
8:21 a.m. - 12:22 a.m.BWI-YOW
16h 01m2 stops
C$ 417
Find Deal
Tue, 30 Sep - Fri, 3 Oct
 Logo
4:25 p.m. - 3:29 p.m.YOW-BWI
23h 04m1 stop
 Logo
8:52 p.m. - 4:57 p.m.BWI-YOW
20h 05m1 stop
C$ 419
Find Deal
Fri, 3 Oct - Sat, 4 Oct
 Logo
3:50 p.m. - 9:32 a.m.YOW-BWI
17h 42m1 stop
 Logo
8:16 p.m. - 5:20 p.m.BWI-YOW
21h 04m1 stop
C$ 422
Find Deal
Wed, 29 Oct - Wed, 5 Nov
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9:30 a.m. - 8:34 a.m.YOW-BWI
23h 04m1 stop
 Logo
2:30 p.m. - 5:25 p.m.BWI-YOW
26h 55m1 stop
C$ 424
Find Deal
Fri, 3 Oct - Sat, 4 Oct
WestJet Logo
5:55 a.m. - 3:50 p.m.YOW-BWI
9h 55m2 stops
WestJet Logo
1:50 p.m. - 12:22 a.m.BWI-YOW
10h 32m2 stops
C$ 778WestJet
Find Deal
Sat, 20 Dec - Sun, 21 Dec
United Airlines Logo
6:15 a.m. - 9:26 p.m.YOW-BWI
15h 11m1 stop
United Airlines Logo
6:15 a.m. - 5:18 p.m.BWI-YOW
11h 03m1 stop
C$ 786United Airlines
Find Deal
Thu, 15 Jan - Mon, 19 Jan
United Airlines Logo
6:20 a.m. - 9:41 p.m.YOW-BWI
15h 21m1 stop
United Airlines Logo
10:05 a.m. - 5:12 p.m.BWI-YOW
7h 07m1 stop
C$ 808United Airlines
Find Deal
Thu, 15 Jan - Mon, 19 Jan
Delta Logo
5:40 a.m. - 3:53 p.m.YOW-BWI
10h 13m2 stops
Delta Logo
11:00 a.m. - 12:42 a.m.BWI-YOW
13h 42m2 stops
C$ 897Delta
Find Deal
Thu, 30 Oct - Thu, 6 Nov
WestJet Logo
5:40 a.m. - 11:02 p.m.YOW-BWI
17h 22m2 stops
WestJet Logo
6:00 a.m. - 12:42 a.m.BWI-YOW
18h 42m2 stops
C$ 925WestJet
Find Deal
Thu, 15 Jan - Mon, 19 Jan
Delta Logo
5:40 a.m. - 3:53 p.m.YOW-BWI
10h 13m2 stops
Delta Logo
11:00 a.m. - 12:42 a.m.BWI-YOW
13h 42m2 stops
C$ 950Delta
Find Deal

Everything you should know

Top airlines
WestJet
Cheapest • from C$ 778 (round-trip)
Porter Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
C$ 417
Multiple Airlines
Tue 30/9Fri 3/10
YOW - BWI • 1 stop
Cheapest one-way flights
C$ 235
Multiple Airlines
Wed 29/10
YOW - BWI • 1 stop
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Baltimore!
Booking Insights

KAYAK's insights & trends for Ottawa to Baltimore flights

Get data-powered insights and trends into flights from Ottawa to Baltimore to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ottawa to Baltimore?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ottawa to Baltimore were found on WestJet (C$ 778) and United Airlines (C$ 786).

Good to know

Low seasonApril
Cheapest flightC$ 235
Best time to beat the crowds (71% less expensive on average)
Most popular time to fly and prices are also 55% lower on average.
Flight from Ottawa to Baltimore

When to book flights from Ottawa to Baltimore

Are your dates flexible? Find out the best times to travel from Ottawa to Baltimore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ottawa to Baltimore

  • What is the cheapest flight from Ottawa to Baltimore?

    In the last 3 days, the lowest price for a flight from Ottawa to Baltimore was C$ 170 for a one-way ticket and C$ 301 for a round-trip.

  • Which airports will I be using when flying from Ottawa to Baltimore?

    Ottawa and Baltimore are both served by 1 main airport. You will leave Ottawa from Ottawa and will be arriving at Baltimore/Washington.

  • Which aircraft models fly most regularly from Ottawa to Baltimore?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ottawa to Baltimore?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Ottawa and Baltimore, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ottawa to Baltimore, Porter Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ottawa to Baltimore are Porter Airlines and United Airlines. With an average price for the route of C$ 381 and an overall rating of 7.9, Porter Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 1,014 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ottawa to Baltimore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to Baltimore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Baltimore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from Ottawa is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to Baltimore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Baltimore with an airline and back to Ottawa with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Baltimore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Baltimore from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ottawa to Baltimore

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Baltimore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ottawa to Baltimore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Porter AirlinesOverall score based on 363 reviews
8.6Crew
7.9Comfort
7.0Entertainment
8.1Boarding
7.6Food
Airline reviews

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

2.0 MediocreAnonymous, Sep 2025YDF - YHZ
Read more Porter Airlines reviews

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

This flight to St. Johns was really good. Boarding was a breeze. We left spot on time. Seats were actually pretty good. Recliner further than I expected. Three more flights to go we will see if this is the status quo for Porter.👍

I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

The flight was fine see earlier note for the problem

All good the seats a little tight and no I pad screen

Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive

Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

The whole experience from check in to deboarding was fantastic.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

Very nice and clean plane. Transit time between flights was tight though

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

So far so good but food and entertainment are not available for this flight

Everything you need to know for your flight from Ottawa to Baltimore

Information on your arrival and departure airports

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