$151+ Cheap flights from Baltimore (BWI) to Ottawa (YOW)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
Oct 24 — Oct 311
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Baltimore to Ottawa with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Baltimore to Ottawa
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to OttawaExplore the most affordable flight options available from Baltimore to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Baltimore to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:40 am -
2 stops9h 05m
Tue 11/107:05 am -
1 stop29h 56m
Deal found 9/19![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/172:55 pm -
1 stop9h 12m
Tue 1/125:30 am -
2 stops30h 13m
Deal found 9/21![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:40 am -
2 stops9h 05m
Mon 11/97:05 am -
1 stop29h 56m
Deal found 9/19![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:40 am -
2 stops9h 05m
Wed 11/117:05 am -
1 stop29h 56m
Deal found 9/20![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:40 am -
2 stops11h 43m
Wed 10/287:05 am -
1 stop29h 56m
Deal found 9/23![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:12 pm -
2 stops17h 18m
Mon 11/97:05 am -
1 stop29h 56m
Deal found 9/19![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:56 pm -
1 stop9h 36m
Sun 11/112:45 pm -
2 stops24h 16m
Deal found 9/23![Multiple Airlines logo]()
$460
Best flights from Baltimore to OttawaDiscover carefully curated flight deals from Baltimore to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Baltimore to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:04 pm -
3 stops25h 05m
Tue 11/105:30 am -
3 stops28h 20m
Deal found 9/19![Multiple Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/209:52 am -
1 stop11h 31m
Sun 12/274:42 pm -
1 stop8h 06m
Deal found 9/19![United Airlines logo]()
$914
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:32 pm -
2 stops10h 45m
Mon 1/44:25 pm -
1 stop25h 23m
Deal found 9/21![Multiple Airlines logo]()
$641
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:22 am -
3 stops13h 58m
Fri 10/308:00 am -
1 stop9h 33m
Deal found 9/23![Multiple Airlines logo]()
$679
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:55 am -
1 stop5h 21m
Thu 10/225:20 pm -
1 stop5h 39m
Deal found 9/22![United Airlines logo]()
$914
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:32 pm -
2 stops10h 45m
Sun 1/38:00 am -
1 stop16h 55m
Deal found 9/23![Multiple Airlines logo]()
$803
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:09 am -
1 stop8h 07m
Mon 10/196:25 am -
1 stop11h 48m
Deal found 9/19![United Airlines logo]()
$914
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:55 am -
1 stop5h 21m
Fri 10/235:20 pm -
1 stop5h 39m
Deal found 9/22![United Airlines logo]()
$945
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:09 am -
1 stop12h 26m
Sun 10/1810:37 am -
1 stop12h 22m
Deal found 9/19![United Airlines logo]()
$945
Last-minute flights from Baltimore to OttawaDiscover last-minute flight deals from Baltimore to Ottawa. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Ottawa. Data last updated September 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:40 am -
2 stops11h 43m
Wed 10/287:05 am -
1 stop29h 56m
Deal found 9/23![Multiple Airlines logo]()
$400
This Mytrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:12 pm -
2 stops19h 08m
Sun 10/257:05 am -
2 stops26h 12m
Deal found 9/22![Multiple Airlines logo]()
$493
This Mytrip deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:40 am -
3 stops18h 45m
Mon 10/2610:35 am -
2 stops23h 15m
Deal found 9/21![Multiple Airlines logo]()
$489
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:56 pm -
1 stop9h 36m
Sun 11/112:45 pm -
2 stops24h 16m
Deal found 9/23![Multiple Airlines logo]()
$460
One-way flights from Baltimore to OttawaSearch for one-way flight options from Baltimore to Ottawa. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Baltimore to Ottawa. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:40 am -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:40 am -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:35 am -
1 stop13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:22 pm -
1 stop7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:35 am -
2 stops36h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:57 am -
2 stops31h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:40 am -
3 stops18h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$200
Find flight deals from Baltimore to Ottawa
Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Ottawa (YOW). 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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Kiwi.com) |
One-way from | $151 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $434 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated September 24, 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
Cheapest round-trip
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Tue 11/3
1:56 pm-5:20 pm
1 stop27h 24m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Wed 11/4
5:40 am-5:58 pm
3 stops36h 18m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$212
Quickest round-trip
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Mon 11/23
6:40 am-4:44 pm
1 stop10h 04m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$228
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Sun 10/4
1:55 pm-3:15 pm
1 stop25h 20m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$241
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Fri 11/13
6:24 am-12:44 am
3 stops18h 20m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$266
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Sat 10/3
1:55 pm-5:35 pm
2 stops27h 40m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$294
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Thu 10/8
9:59 pm-2:30 pm
1 stop16h 31m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$300
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Fri 10/2
9:32 pm-5:23 pm
2 stops19h 51m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$430
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Tue 11/3
3:04 pm-4:09 pm
3 stops25h 05m
Ottawa
Tue 11/10
5:30 am-9:50 am
3 stops28h 20m
$473
BaltimoreOttawa
BWI Baltimore/Washington - YOW Ottawa
BWIYOW
Baltimore/Washington
Tue 12/22
12:32 pm-11:17 pm
2 stops10h 45m
Ottawa
Mon 1/4
4:25 pm-5:48 pm
1 stop25h 23m
$641
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Baltimore to Ottawa
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Ottawa in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Baltimore-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Ottawa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Baltimore to Ottawa
Have a flexible travel schedule? Discover the best time to fly to Ottawa from Baltimore with our price prediction graph.
BWI-YOW
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Baltimore to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Ottawa?
Book flights to Ottawa if you plan to visit one of these locationsGatineau
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Ottawa flight routes
Popular flights