$123+ Cheap flights from Baltimore (BWI) to Ontario
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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
Aug 14 — Aug 211
Round-trip
1 adult, Economy
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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
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Cheapest flights from Baltimore to OntarioExplore the most affordable flight options available from Baltimore to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 15, 2026.
Explore the most affordable flight options available from Baltimore to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/191:20 pm
BWI
- YYZ
1 stop24h 45m
Multiple Airlines
Tue 8/259:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/101:55 pm
BWI
- YYZ
1 stop31h 00m
Multiple Airlines
Sun 9/277:30 am
YYZ
- BWI
1 stop29h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Wed 8/269:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/251:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Wed 9/99:30 am
YYZ
- BWI
1 stop27h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/251:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Tue 9/19:50 am
YYZ
- BWI
1 stop11h 40m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/111:55 pm
BWI
- YYZ
1 stop24h 10m
Multiple Airlines
Mon 9/141:30 pm
YYZ
- BWI
1 stop23h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/111:55 pm
BWI
- YYZ
1 stop24h 10m
Multiple Airlines
Wed 9/169:30 am
YYZ
- BWI
1 stop27h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Mon 8/311:30 pm
YYZ
- BWI
1 stop22h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Tue 9/19:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Wed 9/29:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/111:55 pm
BWI
- YYZ
1 stop24h 10m
Multiple Airlines
Thu 9/171:30 pm
YYZ
- BWI
1 stop23h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/910:00 pm
BWI
- YYZ
2 stops22h 55m
Multiple Airlines
Mon 9/141:30 pm
YYZ
- BWI
1 stop23h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$337
Best flights from Baltimore to OntarioDiscover carefully curated flight deals from Baltimore to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 15, 2026.
Discover carefully curated flight deals from Baltimore to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/241:20 pm
BWI
- YOW
2 stops30h 40m
Multiple Airlines
Mon 8/317:00 am
YOW
- BWI
1 stop29h 25m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:10 am
BWI
- YYZ
1 stop5h 08m
Delta
Tue 9/294:05 pm
YYZ
- BWI
1 stop5h 25m
Delta
Deal found 7/14![Delta logo]()
$558
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Tue 8/256:05 am
BWI
- YTZ
1 stop10h 48m
United Airlines
Sat 8/2912:15 pm
YTZ
- BWI
1 stop9h 14m
United Airlines
Deal found 7/12![United Airlines logo]()
$592
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:38 am
BWI
- YOW
2 stops9h 22m
American Airlines
Tue 9/298:40 am
YOW
- BWI
2 stops9h 01m
American Airlines
Deal found 7/13![American Airlines logo]()
$735
This Delta deal was found by Cheapflights users on 7/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:10 pm
BWI
- YUL
1 stop9h 49m
Delta
Fri 10/2312:44 pm
YUL
- BWI
1 stop9h 53m
Delta
Deal found 7/10![Delta logo]()
$560
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Tue 8/188:10 am
BWI
- YTZ
1 stop8h 43m
United Airlines
Mon 8/3112:15 pm
YTZ
- BWI
1 stop10h 45m
United Airlines
Deal found 7/11![United Airlines logo]()
$592
This Delta deal was found by Cheapflights users on 7/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:18 pm
BWI
- YUL
1 stop9h 34m
Delta
Mon 9/77:00 am
YUL
- BWI
1 stop6h 05m
Delta
Deal found 7/10![Delta logo]()
$560
This United deal was found by Cheapflights users on 7/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:25 am
BWI
- YTZ
1 stop23h 42m
Multiple Airlines
Thu 9/1712:15 pm
YTZ
- BWI
1 stop10h 44m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$617
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Tue 8/188:10 am
BWI
- YTZ
1 stop8h 43m
United Airlines
Tue 9/112:15 pm
YTZ
- BWI
1 stop9h 14m
United Airlines
Deal found 7/11![United Airlines logo]()
$592
This Delta deal was found by Cheapflights users on 7/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:02 pm
BWI
- YUL
1 stop5h 36m
Delta
Mon 10/57:00 am
YUL
- BWI
1 stop8h 42m
Delta
Deal found 7/10![Delta logo]()
$560
This United deal was found by Cheapflights users on 7/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:00 pm
BWI
- YTZ
1 stop21h 07m
Multiple Airlines
Thu 9/312:15 pm
YTZ
- BWI
1 stop21h 54m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 7/13. 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 9/912:10 pm
BWI
- YTZ
1 stop21h 57m
United Airlines
Sat 9/1212:15 pm
YTZ
- BWI
1 stop9h 14m
United Airlines
Deal found 7/13![United Airlines logo]()
$603
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:03 pm
BWI
- YUL
1 stop9h 56m
Delta
Mon 9/147:00 am
YUL
- BWI
1 stop5h 58m
Delta
Deal found 7/12![Delta logo]()
$561
This United deal was found by Cheapflights users on 7/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:25 am
BWI
- YTZ
1 stop23h 53m
Multiple Airlines
Sun 8/307:35 pm
YTZ
- BWI
1 stop14h 34m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$619
This American Airlines deal was found by Cheapflights users on 7/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:24 pm
BWI
- YOW
3 stops19h 31m
American Airlines
Mon 8/318:40 am
YOW
- BWI
2 stops14h 18m
American Airlines
Deal found 7/10![American Airlines logo]()
$797
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/32:18 pm
BWI
- YUL
1 stop9h 34m
Delta
Mon 9/77:00 am
YUL
- BWI
1 stop10h 15m
Delta
Deal found 7/12![Delta logo]()
$561
This United Airlines deal was found by Cheapflights users on 7/10. 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 9/118:25 am
BWI
- YTZ
1 stop8h 17m
United Airlines
Sun 9/137:25 pm
YTZ
- BWI
1 stop22h 47m
United Airlines
Deal found 7/10![United Airlines logo]()
$645
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:59 am
BWI
- YOW
2 stops9h 01m
American Airlines
Fri 8/288:40 am
YOW
- BWI
2 stops9h 05m
American Airlines
Deal found 7/13![American Airlines logo]()
$836
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:20 pm
BWI
- YUL
1 stop5h 32m
Delta
Mon 8/177:00 am
YUL
- BWI
1 stop8h 46m
Delta
Deal found 7/14![Delta logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/16:25 am
BWI
- YOW
1 stop8h 08m
Multiple Airlines
Tue 8/48:55 pm
YOW
- BWI
2 stops14h 02m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$711
This WestJet deal was found by Cheapflights users on 7/10. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:57 pm
BWI
- YXU
2 stops22h 53m
WestJet
Fri 8/142:40 pm
YXU
- BWI
2 stops30h 49m
WestJet
Deal found 7/10![WestJet logo]()
$1,906
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:18 pm
BWI
- YUL
1 stop9h 34m
Delta
Mon 8/245:10 pm
YUL
- BWI
1 stop6h 03m
Delta
Deal found 7/14![Delta logo]()
$571
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:35 pm
BWI
- YUL
1 stop5h 24m
Delta
Mon 9/2112:44 pm
YUL
- BWI
1 stop7h 01m
Delta
Deal found 7/14![Delta logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 9/246:10 am
BWI
- YOW
2 stops8h 45m
Multiple Airlines
Mon 9/284:15 pm
YOW
- BWI
1 stop17h 13m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$801
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:30 pm
BWI
- YUL
2 stops11h 22m
Delta
Fri 9/46:00 am
YUL
- BWI
1 stop5h 42m
Delta
Deal found 7/14![Delta logo]()
$581
This United Airlines deal was found by Cheapflights users on 7/11. 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 9/256:05 am
BWI
- YQT
2 stops16h 43m
United Airlines
Mon 9/285:05 am
YQT
- BWI
2 stops15h 57m
United Airlines
Deal found 7/11![United Airlines logo]()
$858
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:25 pm
BWI
- YUL
2 stops11h 34m
Delta
Mon 10/127:00 am
YUL
- BWI
1 stop8h 40m
Delta
Deal found 7/14![Delta logo]()
$581
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/266:05 am
BWI
- YQT
2 stops11h 19m
United Airlines
Sat 8/295:10 am
YQT
- BWI
2 stops8h 48m
United Airlines
Deal found 7/12![United Airlines logo]()
$858
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:18 pm
BWI
- YUL
2 stops9h 12m
Delta
Mon 8/317:00 am
YUL
- BWI
1 stop8h 46m
Delta
Deal found 7/14![Delta logo]()
$581
This United Airlines deal was found by Cheapflights users on 7/13. 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
BWI
- YQT
2 stops13h 39m
United Airlines
Tue 10/205:15 am
YQT
- BWI
2 stops8h 43m
United Airlines
Deal found 7/13![United Airlines logo]()
$869
Last-minute flights from Baltimore to OntarioDiscover last-minute flight deals from Baltimore to Ontario. Data last updated July 15, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Ontario. Data last updated July 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/149:38 pm
BWI
- YOW
1 stop16h 55m
Multiple Airlines
Mon 8/177:00 am
YOW
- BWI
1 stop29h 25m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Wed 8/269:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Mon 8/311:30 pm
YYZ
- BWI
1 stop22h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Tue 9/19:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/181:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Wed 9/29:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/189:32 pm
BWI
- YTZ
2 stops20h 23m
Multiple Airlines
Mon 8/318:55 am
YTZ
- BWI
1 stop8h 47m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/191:20 pm
BWI
- YYZ
1 stop24h 45m
Multiple Airlines
Tue 8/259:30 am
YYZ
- BWI
1 stop26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/205:08 pm
BWI
- YTZ
1 stop24h 47m
Multiple Airlines
Mon 8/248:55 am
YTZ
- BWI
1 stop8h 47m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/241:20 pm
BWI
- YOW
2 stops30h 40m
Multiple Airlines
Mon 8/317:00 am
YOW
- BWI
1 stop29h 25m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/251:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Wed 9/99:30 am
YYZ
- BWI
1 stop27h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/251:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Tue 9/19:50 am
YYZ
- BWI
1 stop11h 40m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/261:20 pm
BWI
- YYZ
1 stop12h 24m
Multiple Airlines
Wed 9/28:55 am
YYZ
- BWI
1 stop11h 08m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$348
One-way flights from Baltimore to OntarioSearch for one-way flight options from Baltimore to Ontario. Find affordable one-way fares based on user searches. Data last updated July 15, 2026.
Search for one-way flight options from Baltimore to Ontario. Find affordable one-way fares based on user searches. Data last updated July 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/161:55 pm
BWI
- YYZ
1 stop31h 00m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 9/231:55 pm
BWI
- YYZ
1 stop31h 00m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/141:55 pm
BWI
- YYZ
1 stop27h 00m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/101:55 pm
BWI
- YYZ
1 stop27h 00m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$126
This Kissandfly.com deal was found by Cheapflights users on 7/11. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:20 pm
BWI
- YYZ
1 stop12h 24m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/241:20 pm
BWI
- YYZ
1 stop24h 45m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/51:05 pm
BWI
- YYZ
1 stop25h 00m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 9/191:55 pm
BWI
- YYZ
1 stop24h 10m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/191:20 pm
BWI
- YYZ
1 stop24h 45m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/221:20 pm
BWI
- YYZ
1 stop24h 45m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/101:55 pm
BWI
- YUL
2 stops34h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 10/11:55 pm
BWI
- YUL
2 stops34h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$168
Find flight deals from Baltimore to Ontario
Keep the following information in mind while searching for Baltimore to Ontario flight deals. Data was last updated July 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $278 (Kiwi.com) |
One-way from | $123 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $306 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore to Ontario 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 2,558,603 searches. Data last updated July 15, 2026.
Use the filters below to find and compare flights from Baltimore to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreOttawa
BWI - YOW
BWIYOW
Baltimore/Washington
Mon 8/24
1:20 pm-8:00 pm
2 stops30h 40m
Ottawa
Mon 8/31
7:00 am-12:25 pm
1 stop29h 25m
$340
Quickest round-trip
BaltimoreToronto
BWI - YYZ
BWIYYZ
Baltimore/Washington
Sun 9/27
6:10 am-11:18 am
1 stop5h 08m
Toronto Pearson Intl
Tue 9/29
4:05 pm-9:30 pm
1 stop5h 25m
$558
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Mon 10/19
2:10 pm-11:59 pm
1 stop9h 49m
Montreal Pierre Elliott Trudeau Intl
Fri 10/23
12:44 pm-10:37 pm
1 stop9h 53m
$560
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Fri 9/4
2:18 pm-11:52 pm
1 stop9h 34m
Montreal Pierre Elliott Trudeau Intl
Mon 9/7
7:00 am-1:05 pm
1 stop6h 05m
$560
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Wed 9/30
12:02 pm-5:38 pm
1 stop5h 36m
Montreal Pierre Elliott Trudeau Intl
Mon 10/5
7:00 am-3:42 pm
1 stop8h 42m
$560
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Fri 9/11
2:03 pm-11:59 pm
1 stop9h 56m
Montreal Pierre Elliott Trudeau Intl
Mon 9/14
7:00 am-12:58 pm
1 stop5h 58m
$561
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Thu 9/3
2:18 pm-11:52 pm
1 stop9h 34m
Montreal Pierre Elliott Trudeau Intl
Mon 9/7
7:00 am-5:15 pm
1 stop10h 15m
$561
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Fri 8/14
6:20 pm-11:52 pm
1 stop5h 32m
Montreal Pierre Elliott Trudeau Intl
Mon 8/17
7:00 am-3:46 pm
1 stop8h 46m
$571
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Fri 8/21
2:18 pm-11:52 pm
1 stop9h 34m
Montreal Pierre Elliott Trudeau Intl
Mon 8/24
5:10 pm-11:13 pm
1 stop6h 03m
$571
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Fri 9/18
6:35 pm-11:59 pm
1 stop5h 24m
Montreal Pierre Elliott Trudeau Intl
Mon 9/21
12:44 pm-7:45 pm
1 stop7h 01m
$571
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Baltimore to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Baltimore with our price prediction graph.
BWI-YYZ
BWI-YOW
BWI-YTZ
BWI-YQT
BWI-YUL
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.
Cheapflights Insights
Everything you need to know about your flight from Baltimore to Ontario
BWI-CAON
BWI-YYZ
BWI-YOW
BWI-YTZ
BWI-YQT
What is the cheapest month to book a flight from Baltimore to Region of Ontario?
Currently, December is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of $118). Flying from Baltimore to Region of Ontario in January is currently the most expensive (average of $262). 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.
How much does it cost to fly round-trip from Baltimore to Region of Ontario?
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated July 15, 2026.
Read reviews from past customers who have flown Porter Airlines,Delta, andUnited Airlines from Baltimore to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.9
Food
7.5
Crew
8.6
Overall
7.9
Comfort
7.9
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Crew
8.6
Overall
7.9
Comfort
7.9
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Crew
8.6
Overall
7.9
Comfort
7.9
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Crew
8.6
Overall
7.9
Comfort
7.9
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Crew
8.6
Overall
7.9
Comfort
7.9
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Crew
8.6
Overall
7.9
Comfort
7.9
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Related info for your journey
Find useful and relevant information for your journey from Baltimore to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Baltimore to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to Ontario by cabin class
Find flights from Baltimore to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and Ontario flights
Browse other Baltimore and Ontario flight options. Last updated on July 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Baltimore to Ontario flights
Consider these flights traveling from Baltimore to Ontario.
Top 3 airlines flying from Baltimore to Ontario
Discover the top 3 airlines that operate flights from Baltimore to Ontario. 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 2,558,603 searches. Data last updated July 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$220 | Average$289 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$243 | Average$542 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$495 | Average$681 | FlexibilityNo cancel fee | On-time60% |