Find flights
When to book
Airlines
FAQs

Cheap flights from Ottawa to Baltimore from C$ 262

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 8/4. 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.
YOW — BWI
3 Apr — 10 Apr1
1 adult
Wed 3/4
Wed 10/4

Find deals on flights from Ottawa to Baltimore by searching across hundreds of travel sites at once

 
Cheapflights users frequently choose these airlines when searching for flights from Ottawa to Baltimore, based on our search results.
Cheapflights users frequently choose these airlines when searching for flights from Ottawa to Baltimore, based on our search results.
Here’s why our users search for flights through Cheapflights

Save over 18%Compare Cheapflights against other travel sites with one search.

Price trackingHolding out for a great deal? Get notified when prices are reduced.

Customized resultsFilter for flights based on cabin class, airline, free Wi-Fi, and more.

Unlimited free useSearch as many times as you want with no hidden charges or fees.

Cheap 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 29 March 2024.

Popular in

June

Cheapest in

January

Average price

C$ 699

Round-trip from

C$ 356
High demand for flights, 10% potential price rise
Best time to find cheap flights, 13% potential price drop
Average for round-trip flights in March 2024
From Ottawa to Baltimore/Washington

What is the cheapest day to fly round-trip from Ottawa to Baltimore?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 22% on the overall cost on flights from Ottawa to Baltimore.

How far in advance should I book a flight from Ottawa to Baltimore?

Find a great deal and save up to 106% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ottawa to Baltimore within the next two weeks, with the cheapest ticket starting at C$ 478.

What is the cheapest month to fly from Ottawa to Baltimore?

The best pricing can be found in the month of March. Prices to Baltimore from Ottawa average C$ 515. You can even find prices in March for less than C$ 515, as users have found deals to Baltimore from as low as C$ 191. The month of July appears to be one of the more expensive times to travel to Baltimore from Ottawa. Flying in the targeted month can save you up to 19%.

When is the cheapest time to fly from Ottawa to Baltimore (YOW - BWI)?

One of the essential ways to save on airfare from Ottawa to Baltimore is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 16% on airfare.

Cheap United Airlines flights from Ottawa to Baltimore

Explore cheap flight options specifically provided by United Airlines for the route between Ottawa and Baltimore. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 586,909 searches. Data last updated 29 March 2024.
Consider these cheap United Airlines flights we've found departing from Ottawa to Baltimore. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 23/45:30 a.m.YOW - BWI
2 stops15h 59mUnited Airlines
Wed 24/46:30 a.m.BWI - YOW
1 stop10h 36mUnited Airlines
Deal found 28/3C$ 1,011
Mon 10/66:38 a.m.YOW - BWI
1 stop27h 17mUnited Airlines
Sat 15/66:25 a.m.BWI - YOW
1 stop15h 23mUnited Airlines
Deal found 29/3C$ 1,259
Mon 15/46:38 a.m.YOW - BWI
1 stop14h 51mUnited Airlines
Tue 16/45:41 p.m.BWI - YOW
1 stop23h 25mUnited Airlines
Deal found 27/3C$ 1,452
Mon 10/66:05 a.m.YOW - BWI
2 stops27h 50mUnited Airlines
Sat 15/65:44 p.m.BWI - YOW
1 stop23h 20mUnited Airlines
Deal found 29/3C$ 1,529

Cheap WestJet flights from Ottawa to Baltimore

Explore cheap flight options specifically provided by WestJet for the route between Ottawa and Baltimore. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 586,909 searches. Data last updated 29 March 2024.
Some of the best deals we've found on WestJet flights travelling from Ottawa to Baltimore. Make sure to examine the flight information before completing your reservation.
Fri 31/58:15 p.m.YOW - BWI
2 stops24h 03mWestJet
Mon 3/66:00 a.m.BWI - YOW
2 stops14h 48mWestJet
Deal found 28/3C$ 773
Fri 10/56:00 a.m.YOW - BWI
2 stops17h 08mWestJet
Mon 13/57:05 a.m.BWI - YOW
2 stops13h 43mWestJet
Deal found 28/3C$ 837
Thu 2/53:55 p.m.YOW - BWI
2 stops32h 04mWestJet
Wed 8/56:00 a.m.BWI - YOW
2 stops13h 24mWestJet
Deal found 28/3C$ 886
Fri 7/68:15 p.m.YOW - BWI
2 stops28h 32mWestJet
Sun 9/611:35 a.m.BWI - YOW
2 stops27h 03mWestJet
Deal found 27/3C$ 929
Tue 23/46:00 a.m.YOW - BWI
2 stops16h 47mWestJet
Wed 24/46:00 a.m.BWI - YOW
2 stops18h 19mWestJet
Deal found 28/3C$ 942
Mon 15/46:00 a.m.YOW - BWI
2 stops11h 25mWestJet
Tue 16/412:04 p.m.BWI - YOW
2 stops12h 15mWestJet
Deal found 27/3C$ 1,000
Sat 27/46:00 a.m.YOW - BWI
2 stops17h 20mWestJet
Mon 6/512:02 p.m.BWI - YOW
2 stops27h 07mWestJet
Deal found 28/3C$ 1,057
Sat 27/46:00 a.m.YOW - BWI
2 stops17h 20mWestJet
Mon 6/512:02 p.m.BWI - YOW
2 stops27h 07mWestJet
Deal found 28/3C$ 1,064

Cheap Ottawa to Baltimore flights in March & April 2024

Find cheap flight options from Ottawa to Baltimore specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 586,909 searches. Prices were last updated on 29 March 2024.
These are some of the most attractive deals on flights from Ottawa to Baltimore in 2024. Check back in a little while for more flight options.
Thu 4/42:55 p.m.YOW - BWI
1 stop8h 21mMultiple Airlines
Thu 11/45:11 a.m.BWI - YOW
1 stop13h 06mMultiple Airlines
Deal found 28/3C$ 541
Thu 4/42:55 p.m.YOW - BWI
1 stop8h 21mMultiple Airlines
Thu 11/45:11 a.m.BWI - YOW
1 stop13h 06mMultiple Airlines
Deal found 28/3C$ 543
Thu 4/45:10 p.m.YOW - BWI
1 stop7h 20mMultiple Airlines
Thu 11/46:16 p.m.BWI - YOW
3 stops22h 13mMultiple Airlines
Deal found 28/3C$ 724
Thu 4/45:10 p.m.YOW - BWI
1 stop7h 20mMultiple Airlines
Thu 11/46:16 p.m.BWI - YOW
3 stops22h 13mMultiple Airlines
Deal found 28/3C$ 745
Tue 23/46:00 a.m.YOW - BWI
2 stops16h 47mWestJet
Wed 24/46:00 a.m.BWI - YOW
2 stops18h 19mWestJet
Deal found 28/3C$ 942
Mon 15/46:00 a.m.YOW - BWI
2 stops11h 25mWestJet
Tue 16/412:04 p.m.BWI - YOW
2 stops12h 15mWestJet
Deal found 27/3C$ 1,000
Tue 23/45:30 a.m.YOW - BWI
2 stops15h 59mUnited Airlines
Wed 24/46:30 a.m.BWI - YOW
1 stop10h 36mUnited Airlines
Deal found 28/3C$ 1,011
Sat 27/46:00 a.m.YOW - BWI
2 stops17h 20mWestJet
Mon 6/512:02 p.m.BWI - YOW
2 stops27h 07mWestJet
Deal found 28/3C$ 1,057
Sat 27/46:00 a.m.YOW - BWI
2 stops17h 20mWestJet
Mon 6/512:02 p.m.BWI - YOW
2 stops27h 07mWestJet
Deal found 28/3C$ 1,064

Ottawa to Baltimore 2024 flight deals

Discover exclusive flight deals for travel between Ottawa and Baltimore in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 586,909 searches. Data last updated 29 March 2024.
These are some of the most attractive deals on flights from Ottawa to Baltimore in 2024. Check back in a little while for more flight options.
Thu 4/42:55 p.m.YOW - BWI
1 stop8h 21mMultiple Airlines
Thu 11/45:11 a.m.BWI - YOW
1 stop13h 06mMultiple Airlines
Deal found 28/3C$ 541
Thu 4/42:55 p.m.YOW - BWI
1 stop8h 21mMultiple Airlines
Thu 11/45:11 a.m.BWI - YOW
1 stop13h 06mMultiple Airlines
Deal found 28/3C$ 543
Fri 10/54:35 p.m.YOW - BWI
1 stop4h 37mMultiple Airlines
Mon 13/58:24 a.m.BWI - YOW
2 stops7h 05mMultiple Airlines
Deal found 28/3C$ 545
Thu 4/45:10 p.m.YOW - BWI
1 stop7h 20mMultiple Airlines
Thu 11/46:16 p.m.BWI - YOW
3 stops22h 13mMultiple Airlines
Deal found 28/3C$ 724
Thu 4/45:10 p.m.YOW - BWI
1 stop7h 20mMultiple Airlines
Thu 11/46:16 p.m.BWI - YOW
3 stops22h 13mMultiple Airlines
Deal found 28/3C$ 745
Fri 31/58:15 p.m.YOW - BWI
2 stops24h 03mWestJet
Mon 3/66:00 a.m.BWI - YOW
2 stops14h 48mWestJet
Deal found 28/3C$ 773
Fri 10/56:00 a.m.YOW - BWI
2 stops17h 08mWestJet
Mon 13/57:05 a.m.BWI - YOW
2 stops13h 43mWestJet
Deal found 28/3C$ 837
Wed 13/116:00 a.m.YOW - BWI
2 stops27h 09mWestJet
Sun 17/116:00 a.m.BWI - YOW
2 stops42h 04mWestJet
Deal found 28/3C$ 885
Thu 2/53:55 p.m.YOW - BWI
2 stops32h 04mWestJet
Wed 8/56:00 a.m.BWI - YOW
2 stops13h 24mWestJet
Deal found 28/3C$ 886

Ottawa to Baltimore flights leaving soon

Find last-minute flight options from Ottawa to Baltimore for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 586,909 searches. Data last updated 29 March 2024.
Have a look at some of the flights available from Ottawa to Baltimore departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 4/42:55 p.m.YOW - BWI
1 stop8h 21mMultiple Airlines
Thu 11/45:11 a.m.BWI - YOW
1 stop13h 06mMultiple Airlines
Deal found 28/3C$ 541
Thu 4/42:55 p.m.YOW - BWI
1 stop8h 21mMultiple Airlines
Thu 11/45:11 a.m.BWI - YOW
1 stop13h 06mMultiple Airlines
Deal found 28/3C$ 543
Thu 4/45:10 p.m.YOW - BWI
1 stop7h 20mMultiple Airlines
Thu 11/46:16 p.m.BWI - YOW
3 stops22h 13mMultiple Airlines
Deal found 28/3C$ 724
Thu 4/45:10 p.m.YOW - BWI
1 stop7h 20mMultiple Airlines
Thu 11/46:16 p.m.BWI - YOW
3 stops22h 13mMultiple Airlines
Deal found 28/3C$ 745

One-way flights to Baltimore from Ottawa

Search for one-way flight options from Ottawa to Baltimore. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 586,909 searches. Data last updated 29 March 2024.
Take a look at some of the best available options we've come across on one-way flights from Ottawa to Baltimore. For those needing a return trip from Ottawa, there is a search form available above.
Mon 8/45:30 p.m.YOW - BWI
1 stop13h 59mMultiple Airlines
Deal found 28/3C$ 262
Mon 8/45:10 p.m.YOW - BWI
1 stop14h 19mMultiple Airlines
Deal found 28/3C$ 266
Tue 9/42:55 p.m.YOW - BWI
1 stop19h 10mMultiple Airlines
Deal found 28/3C$ 303
Tue 9/411:30 a.m.YOW - BWI
3 stops21h 33mMultiple Airlines
Deal found 28/3C$ 316
Tue 9/44:45 p.m.YOW - BWI
2 stops19h 17mMultiple Airlines
Deal found 28/3C$ 328
Mon 8/45:30 p.m.YOW - BWI
2 stops17h 18mMultiple Airlines
Deal found 28/3C$ 338
Tue 9/44:10 p.m.YOW - BWI
2 stops27h 50mMultiple Airlines
Deal found 28/3C$ 345
Sun 12/58:45 a.m.YOW - BWI
2 stops15h 48mMultiple Airlines
Deal found 28/3C$ 351
Mon 8/44:45 p.m.YOW - BWI
3 stops30h 47mMultiple Airlines
Deal found 28/3C$ 353

Find flights from Ottawa to Baltimore within your budget

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 586,909 searches. Data last updated 29 March 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 545 - C$ 1,259

Route

Depart

Return

Price

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Fri 10/5

1 stop4h 37m

Baltimore/Washington

Mon 13/5

2 stops7h 05m

C$ 545

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Fri 31/5

2 stops24h 03m

Baltimore/Washington

Mon 3/6

2 stops14h 48m

C$ 773

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Fri 10/5

2 stops17h 08m

Baltimore/Washington

Mon 13/5

2 stops13h 43m

C$ 837

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Thu 2/5

2 stops32h 04m

Baltimore/Washington

Wed 8/5

2 stops13h 24m

C$ 886

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Fri 7/6

2 stops28h 32m

Baltimore/Washington

Sun 9/6

2 stops27h 03m

C$ 929

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Tue 23/4

2 stops16h 47m

Baltimore/Washington

Wed 24/4

2 stops18h 19m

C$ 942

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Mon 15/4

2 stops11h 25m

Baltimore/Washington

Tue 16/4

2 stops12h 15m

C$ 1,000

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Tue 23/4

2 stops15h 59m

Baltimore/Washington

Wed 24/4

1 stop10h 36m

C$ 1,011

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Mon 10/6

1 stop27h 17m

Baltimore/Washington

Sat 15/6

1 stop15h 23m

C$ 1,259

Flights are sorted by cheapest first

Deals found on 28/3

When is the best time to book a flight from Ottawa to Baltimore?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Baltimore. Price data was last updated on 28 January 2024.
The price you pay for your flight from Ottawa to Baltimore may vary depending on when you book. For the best chance of a lower fare, look to book 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from Ottawa to Baltimore?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Baltimore. Price data was last updated on 24 March 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ottawa to Baltimore flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Baltimore by month

Plan your trip from Ottawa to Baltimore by taking into account the cheapest months to travel. The average price of a one-way flight from Ottawa to Baltimore is currently C$ 318 while a round-trip flight costs C$ 909. Price data was last updated on 24 March 2024.

Currently, February is the cheapest month in which you can book a flight from Ottawa to Baltimore (average of C$ 337). Flying from Ottawa to Baltimore in June is currently the most expensive (average of C$ 460). 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.

January

C$ 468

February

C$ 457

March

C$ 518

April

C$ 517

May

C$ 548

June

C$ 624

July

C$ 586

August

C$ 567

September

C$ 469

October

C$ 525

November

C$ 543

December

C$ 543

Temperature and rainfall in Baltimore by month

Plan your trip to Baltimore by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

2 - 27 °C

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 29 March 2024.
Read through reviews of airlines operating flights from Ottawa to Baltimore, such as United Airlines and WestJet. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
11,383 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.5

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,383 reviews
8.1
Very good
11,383 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.5

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

7.5
Good
3,036 reviews
8.1
Very good
11,383 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.5

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

7.4
Good
11,470 reviews
8.1
Very good
11,383 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.5

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

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.
  • Can I find flights from Ottawa to Baltimore for under C$ 600 on Cheapflights?

    Yes, there are multiple flights from Ottawa to Baltimore for under C$ 600. The cheapest flight booked recently is on Multiple Airlines for just C$ 545, but on average you can expect to pay C$ 1,138.

  • Are there last-minute flights available from Ottawa to Baltimore for under C$ 600?

    There are currently 4+ open flights from Ottawa to Baltimore within the next 7 days for less than C$ 600.

  • 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$ 773. Another airline that can offer you cheap pricing is United Airlines.

  • What does YOW to BWI mean?

    This is defined as Ottawa Airport (YOW) and Baltimore/Washington Airport (BWI). Codes like Baltimore/Washington Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Ottawa to Baltimore that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ottawa to Baltimore with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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 see available direct flights.

  • 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.

  • Can I find deals for flights from Ottawa to Baltimore that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • How recently were the Ottawa to Baltimore flight deals updated?

    The Ottawa to Baltimore flight deals you see on this page were last updated on 28/3.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 586,909 searches. Data last updated 29 March 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 352AverageC$ 517FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 534AverageC$ 776FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Search flights from Ottawa to Baltimore by cabin class

Find flights from Ottawa to Baltimore, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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.

Can I find deals on last-minute flights from Ottawa to Baltimore?

Yes, you can often find last-minute deals on Ottawa to Baltimore flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

How can I compare prices from different travel booking sites for flights from Ottawa to Baltimore?

Cheapflights aggregates prices from various travel booking sites. This allows you to compare prices and choose the best deal.

Can I find deals for flights from Ottawa to Baltimore that offer flexible cancellation policies?

Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.