$141+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
Jul 29 — Aug 51
Round-trip
1 adult, Economy
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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 June 29, 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 June 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 6/25![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/131:05 pm
BWI
- YYZ
1 stop7h 50m
Multiple Airlines
Tue 7/146:30 am
YYZ
- BWI
1 stop29h 40m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/131:05 pm
BWI
- YYZ
1 stop25h 00m
Multiple Airlines
Thu 7/166:30 am
YYZ
- BWI
1 stop29h 40m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/131:05 pm
BWI
- YYZ
1 stop7h 50m
Multiple Airlines
Sat 7/186:30 am
YYZ
- BWI
2 stops16h 47m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 10/1711:09 am
BWI
- YTZ
1 stop6h 51m
Multiple Airlines
Mon 10/198:40 pm
YTZ
- BWI
1 stop13h 34m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/201:05 pm
BWI
- YYZ
1 stop27h 50m
Multiple Airlines
Tue 7/286:30 am
YYZ
- BWI
1 stop29h 40m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 9/253:20 pm
BWI
- YYZ
1 stop8h 15m
Multiple Airlines
Mon 9/287:45 am
YYZ
- BWI
1 stop10h 47m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 9/253:20 pm
BWI
- YYZ
1 stop8h 15m
Multiple Airlines
Sun 9/274:50 pm
YYZ
- BWI
1 stop16h 38m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/131:05 pm
BWI
- YYZ
1 stop7h 50m
Multiple Airlines
Wed 7/157:45 am
YYZ
- BWI
1 stop12h 48m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 10/151:55 pm
BWI
- YYZ
1 stop27h 00m
Multiple Airlines
Tue 10/209:50 am
YYZ
- BWI
1 stop11h 07m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 10/811:09 am
BWI
- YTZ
1 stop6h 51m
Multiple Airlines
Mon 10/128:40 pm
YTZ
- BWI
1 stop13h 34m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 10/1711:09 am
BWI
- YTZ
1 stop6h 51m
Multiple Airlines
Sun 10/188:40 pm
YTZ
- BWI
1 stop13h 34m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$405
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 June 29, 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 June 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sun 8/91:05 pm
BWI
- YOW
1 stop25h 50m
Multiple Airlines
Sun 8/169:05 am
YOW
- BWI
2 stops46h 21m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 6/26. 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 9/249:45 am
BWI
- YYZ
1 stop5h 30m
Delta
Sun 9/276:00 am
YYZ
- BWI
1 stop5h 45m
Delta
Deal found 6/26![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Mon 7/206:38 pm
BWI
- YYZ
1 stop5h 21m
United Airlines
Sat 7/2511:00 am
YYZ
- BWI
1 stop13h 28m
United Airlines
Deal found 6/24![United Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 6/24. 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 8/157:24 pm
BWI
- YOW
2 stops19h 31m
American Airlines
Sat 8/227:00 am
YOW
- BWI
2 stops10h 45m
American Airlines
Deal found 6/24![American Airlines logo]()
$724
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 10/2912:02 pm
BWI
- YTZ
1 stop8h 48m
Multiple Airlines
Mon 11/24:35 pm
YTZ
- BWI
1 stop18h 32m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 6/28. 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 10/12:03 pm
BWI
- YUL
1 stop9h 56m
Delta
Mon 10/57:00 am
YUL
- BWI
1 stop8h 42m
Delta
Deal found 6/28![Delta logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 10/1611:09 am
BWI
- YTZ
1 stop6h 51m
Multiple Airlines
Sun 10/188:40 pm
YTZ
- BWI
1 stop13h 34m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 6/27. 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
Sun 9/67:00 am
YUL
- BWI
1 stop10h 15m
Delta
Deal found 6/27![Delta logo]()
$504
This United Airlines deal was found by Cheapflights users on 6/25. 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 7/196:38 pm
BWI
- YYZ
1 stop5h 21m
United Airlines
Sun 7/268:45 am
YYZ
- BWI
1 stop5h 12m
United Airlines
Deal found 6/25![United Airlines logo]()
$601
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 9/179:52 pm
BWI
- YOW
1 stop16h 41m
Multiple Airlines
Mon 9/212:10 pm
YOW
- BWI
2 stops18h 19m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 6/28. 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 10/147:00 am
BWI
- YUL
1 stop10h 39m
Delta
Mon 10/196:50 pm
YUL
- BWI
1 stop5h 36m
Delta
Deal found 6/28![Delta logo]()
$504
This oojo deal was found by Cheapflights users on 6/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:25 am
BWI
- YQT
2 stops32h 35m
WestJet
Thu 8/207:50 pm
YQT
- BWI
2 stops27h 28m
WestJet
Deal found 6/29![WestJet logo]()
$1,226
This Delta deal was found by Cheapflights users on 6/27. 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 10/286:00 am
BWI
- YUL
1 stop5h 39m
Delta
Fri 10/306:50 pm
YUL
- BWI
1 stop5h 36m
Delta
Deal found 6/27![Delta logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 9/2512:02 pm
BWI
- YTZ
1 stop5h 58m
Multiple Airlines
Sun 9/278:40 pm
YTZ
- BWI
1 stop14h 27m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 6/24. 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 7/228:18 pm
BWI
- YOW
2 stops18h 37m
American Airlines
Wed 7/298:40 am
YOW
- BWI
2 stops9h 08m
American Airlines
Deal found 6/24![American Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 6/27. 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 8/111:00 pm
BWI
- YTZ
2 stops20h 36m
United Airlines
Wed 8/1212:15 pm
YTZ
- BWI
1 stop21h 54m
United Airlines
Deal found 6/27![United Airlines logo]()
$669
This Delta deal was found by Cheapflights users on 6/27. 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 11/56:10 pm
BWI
- YUL
1 stop5h 49m
Delta
Mon 11/96:00 am
YUL
- BWI
2 stops12h 46m
Delta
Deal found 6/27![Delta logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/42:10 pm
YOW
- BWI
2 stops17h 16m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 8/116:00 am
BWI
- YOW
2 stops15h 40m
American Airlines
Tue 8/187:00 am
YOW
- BWI
2 stops10h 45m
American Airlines
Deal found 6/27![American Airlines logo]()
$728
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Mon 7/206:15 am
BWI
- YTZ
1 stop10h 27m
United Airlines
Sat 7/2512:15 pm
YTZ
- BWI
1 stop9h 17m
United Airlines
Deal found 6/24![United Airlines logo]()
$678
This Delta deal was found by Cheapflights users on 6/27. 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 7/206:08 am
BWI
- YYZ
1 stop7h 26m
Delta
Sat 7/256:10 am
YYZ
- BWI
1 stop5h 37m
Delta
Deal found 6/27![Delta logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 8/156:25 am
BWI
- YOW
1 stop8h 08m
Multiple Airlines
Sat 8/222:10 pm
YOW
- BWI
2 stops17h 16m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 7/215:02 am
BWI
- YOW
2 stops9h 53m
American Airlines
Fri 7/248:40 am
YOW
- BWI
2 stops11h 56m
American Airlines
Deal found 6/27![American Airlines logo]()
$728
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Mon 9/286:51 pm
BWI
- YTZ
1 stop15h 16m
United Airlines
Thu 10/17:25 pm
YTZ
- BWI
1 stop22h 18m
United Airlines
Deal found 6/28![United Airlines logo]()
$695
This Delta deal was found by Cheapflights users on 6/28. 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 8/282:18 pm
BWI
- YUL
1 stop9h 34m
Delta
Mon 8/317:00 am
YUL
- BWI
1 stop8h 46m
Delta
Deal found 6/28![Delta logo]()
$526
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Tue 9/17:46 am
BWI
- YOW
2 stops13h 49m
American Airlines
Fri 9/47:00 am
YOW
- BWI
2 stops13h 49m
American Airlines
Deal found 6/24![American Airlines logo]()
$742
This Delta deal was found by Cheapflights users on 6/26. 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 7/178:17 am
BWI
- YUL
1 stop9h 25m
Delta
Sat 7/257:00 am
YUL
- BWI
1 stop7h 03m
Delta
Deal found 6/26![Delta logo]()
$526
This United deal was found by Cheapflights users on 6/27. 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.
Tue 7/218:16 am
BWI
- YTZ
1 stop8h 26m
Multiple Airlines
Tue 7/217:25 pm
YTZ
- BWI
1 stop18h 32m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$626
This Delta deal was found by Cheapflights users on 6/26. 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 7/192:08 pm
BWI
- YUL
1 stop9h 44m
Delta
Wed 7/227:00 am
YUL
- BWI
1 stop8h 53m
Delta
Deal found 6/26![Delta logo]()
$526
This American Airlines deal was found by Cheapflights users on 6/26. 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 7/208:18 pm
BWI
- YOW
2 stops18h 37m
American Airlines
Wed 7/228:40 am
YOW
- BWI
2 stops9h 08m
American Airlines
Deal found 6/26![American Airlines logo]()
$780
Last-minute flights from Baltimore to OntarioDiscover last-minute flight deals from Baltimore to Ontario. Data last updated June 29, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Ontario. Data last updated June 29, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/109:38 pm
BWI
- YYZ
1 stop19h 07m
Multiple Airlines
Tue 7/149:30 am
YYZ
- BWI
1 stop26h 40m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/111:05 pm
BWI
- YYZ
1 stop25h 55m
Multiple Airlines
Tue 7/149:30 am
YYZ
- BWI
1 stop26h 40m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/131:05 pm
BWI
- YYZ
1 stop7h 50m
Multiple Airlines
Tue 7/146:30 am
YYZ
- BWI
1 stop29h 40m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/131:05 pm
BWI
- YYZ
1 stop25h 00m
Multiple Airlines
Thu 7/166:30 am
YYZ
- BWI
1 stop29h 40m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/131:05 pm
BWI
- YYZ
1 stop7h 50m
Multiple Airlines
Sat 7/186:30 am
YYZ
- BWI
2 stops16h 47m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/131:05 pm
BWI
- YYZ
1 stop7h 50m
Multiple Airlines
Wed 7/157:45 am
YYZ
- BWI
1 stop12h 48m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/131:05 pm
BWI
- YYZ
1 stop25h 00m
Multiple Airlines
Mon 7/207:25 am
YYZ
- BWI
2 stops40h 34m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/201:05 pm
BWI
- YYZ
1 stop27h 50m
Multiple Airlines
Tue 7/286:30 am
YYZ
- BWI
1 stop29h 40m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/241:05 pm
BWI
- YYZ
1 stop25h 00m
Multiple Airlines
Tue 8/44:55 pm
YYZ
- BWI
2 stops28h 51m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/241:05 pm
BWI
- YYZ
1 stop25h 00m
Multiple Airlines
Wed 7/297:25 am
YYZ
- BWI
2 stops11h 08m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/249:38 pm
BWI
- YOW
1 stop16h 57m
Multiple Airlines
Fri 7/317:00 am
YOW
- BWI
1 stop25h 54m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/279:38 pm
BWI
- YOW
2 stops26h 42m
Multiple Airlines
Mon 8/37:00 am
YOW
- BWI
1 stop29h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$420
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 June 29, 2026.
Search for one-way flight options from Baltimore to Ontario. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/25. 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
Deal found 6/25![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Sun 8/301:20 pm
BWI
- YYZ
2 stops27h 49m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 6/27![Multiple Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sun 8/91:05 pm
BWI
- YYZ
2 stops28h 04m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sun 8/231:20 pm
BWI
- YYZ
2 stops27h 49m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 6/27. 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.
Sun 8/21:05 pm
BWI
- YTZ
2 stops29h 53m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Sun 8/21:05 pm
BWI
- YOW
1 stop25h 50m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 11/1812:02 pm
BWI
- YTZ
1 stop26h 23m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 6/27. 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
Deal found 6/27![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 9/169:20 pm
BWI
- YYZ
2 stops23h 35m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 9/81:20 pm
BWI
- YYZ
1 stop27h 35m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 6/24![Multiple Airlines logo]()
$178
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 June 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $318 (Kiwi.com) |
One-way from | $141 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $293 |
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 June 29, 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
Sun 8/9
1:05 pm-2:55 pm
1 stop25h 50m
Ottawa
Sun 8/16
9:05 am-7:26 am
2 stops46h 21m
$409
BaltimoreToronto
BWI - YTZ
BWIYTZ
Baltimore/Washington
Thu 10/29
12:02 pm-8:50 pm
1 stop8h 48m
Toronto Island
Mon 11/2
4:35 pm-11:07 am
1 stop18h 32m
$422
BaltimoreToronto
BWI - YTZ
BWIYTZ
Baltimore/Washington
Fri 10/16
11:09 am-6:00 pm
1 stop6h 51m
Toronto Island
Sun 10/18
8:40 pm-10:14 am
1 stop13h 34m
$469
BaltimoreToronto
BWI - YYZ
BWIYYZ
Baltimore/Washington
Thu 9/24
9:45 am-3:15 pm
1 stop5h 30m
Toronto Pearson Intl
Sun 9/27
6:00 am-11:45 am
1 stop5h 45m
$493
BaltimoreOttawa
BWI - YOW
BWIYOW
Baltimore/Washington
Thu 9/17
9:52 pm-2:33 pm
1 stop16h 41m
Ottawa
Mon 9/21
2:10 pm-8:29 am
2 stops18h 19m
$497
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Thu 10/1
2:03 pm-11:59 pm
1 stop9h 56m
Montreal Pierre Elliott Trudeau Intl
Mon 10/5
7:00 am-3:42 pm
1 stop8h 42m
$504
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Fri 9/4
2:18 pm-11:52 pm
1 stop9h 34m
Montreal Pierre Elliott Trudeau Intl
Sun 9/6
7:00 am-5:15 pm
1 stop10h 15m
$504
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Wed 10/14
7:00 am-5:39 pm
1 stop10h 39m
Montreal Pierre Elliott Trudeau Intl
Mon 10/19
6:50 pm-12:26 am
1 stop5h 36m
$504
BaltimoreMontreal
BWI - YUL
BWIYUL
Baltimore/Washington
Wed 10/28
6:00 am-11:39 am
1 stop5h 39m
Montreal Pierre Elliott Trudeau Intl
Fri 10/30
6:50 pm-12:26 am
1 stop5h 36m
$504
BaltimoreToronto
BWI - YTZ
BWIYTZ
Baltimore/Washington
Fri 9/25
12:02 pm-6:00 pm
1 stop5h 58m
Toronto Island
Sun 9/27
8:40 pm-11:07 am
1 stop14h 27m
$509
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-YOW
BWI-YYZ
BWI-YTZ
BWI-YUL
BWI-YQT
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-YOW
BWI-YYZ
BWI-YTZ
BWI-YUL
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 July is currently the most expensive (average of $263). 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 June 29, 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.
Food
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
6.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
6.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
6.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
6.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
6.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
Food
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
6.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
YYJ - YYZ
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
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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 June 29, 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 June 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$235 | Average$332 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$240 | Average$542 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$495 | Average$681 | FlexibilityNo cancel fee | On-time60% |