$189+ Cheap flights from Milwaukee (MKE) 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Milwaukee to Ontario 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
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Cheapest flights from Milwaukee to OntarioExplore the most affordable flight options available from Milwaukee to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 6, 2026.
Explore the most affordable flight options available from Milwaukee to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/1310:10 am -
1 stop29h 35m
Wed 9/167:45 am -
1 stop26h 23m
Deal found 8/1![Multiple Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/127:30 am -
1 stop9h 14m
Mon 9/147:15 pm -
1 stop13h 46m
Deal found 8/3![American Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/11:17 pm -
1 stop9h 12m
Tue 9/81:15 pm -
1 stop8h 45m
Deal found 8/2![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 8/2. 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 10/2411:41 am -
1 stop10h 48m
Mon 10/263:14 pm -
1 stop8h 28m
Deal found 8/2![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Thu 9/242:48 pm -
1 stop7h 38m
Tue 9/291:15 pm -
1 stop9h 39m
Deal found 8/2![American Airlines logo]()
$443
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 9/105:03 am -
1 stop8h 29m
Sun 9/136:30 am -
1 stop8h 46m
Deal found 8/1![American Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 10/237:19 pm -
1 stop14h 40m
Mon 10/263:14 pm -
1 stop8h 28m
Deal found 8/1![American Airlines logo]()
$450
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/198:31 am -
1 stop13h 55m
Mon 9/216:30 am -
1 stop14h 33m
Deal found 8/4![American Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Fri 9/188:14 pm -
1 stop13h 45m
Sun 9/206:30 am -
1 stop7h 18m
Deal found 8/2![American Airlines logo]()
$457
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Fri 10/167:19 pm -
1 stop14h 40m
Mon 10/196:25 pm -
1 stop14h 42m
Deal found 8/2![American Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 9/208:31 am -
1 stop13h 55m
Tue 9/221:15 pm -
1 stop7h 48m
Deal found 8/4![American Airlines logo]()
$462
This Air Canada deal was found by Cheapflights users on 8/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:00 am -
1 stop8h 20m
Sat 9/198:40 am -
1 stop8h 29m
Deal found 8/6![Air Canada logo]()
$501
Best flights from Milwaukee to OntarioDiscover carefully curated flight deals from Milwaukee to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
Discover carefully curated flight deals from Milwaukee to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Fri 10/167:19 pm -
1 stop14h 40m
Mon 10/196:25 pm -
1 stop14h 42m
Deal found 8/2![American Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 8/4. 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 9/3012:44 pm -
1 stop10h 06m
Tue 10/66:50 pm -
1 stop6h 03m
Deal found 8/4![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 8/2. 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 11/176:00 am -
1 stop6h 28m
Wed 11/183:00 pm -
1 stop8h 47m
Deal found 8/2![United Airlines logo]()
$514
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:42 am -
1 stop4h 17m
Tue 11/102:15 pm -
1 stop3h 42m
Deal found 8/4![WestJet logo]()
$551
This Air Canada deal was found by Cheapflights users on 8/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:18 am -
1 stop9h 17m
Sat 8/295:20 pm -
1 stop4h 40m
Deal found 8/6![Air Canada logo]()
$697
This Delta deal was found by Cheapflights users on 8/5. 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 12/97:00 am -
1 stop7h 58m
Tue 12/156:35 pm -
1 stop6h 19m
Deal found 8/5![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/232:20 pm -
1 stop6h 06m
Tue 9/296:00 am -
1 stop5h 48m
Deal found 8/1![United Airlines logo]()
$514
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Thu 11/197:00 am -
1 stop14h 39m
Sun 11/226:21 pm -
1 stop14h 37m
Deal found 8/3![American Airlines logo]()
$526
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/210:19 am -
1 stop6h 11m
Wed 9/92:20 pm -
2 stops9h 16m
Deal found 8/3![United Airlines logo]()
$523
This Delta deal was found by Cheapflights users on 8/5. 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 9/199:37 am -
1 stop4h 38m
Tue 9/222:30 pm -
1 stop7h 50m
Deal found 8/5![Delta logo]()
$575
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/11:19 pm -
2 stops7h 47m
Tue 9/86:10 am -
1 stop6h 20m
Deal found 8/5![United Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 8/5. 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 10/2310:42 am -
1 stop4h 04m
Fri 10/237:00 pm -
1 stop5h 37m
Deal found 8/5![United Airlines logo]()
$563
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/912:05 pm -
1 stop4h 51m
Tue 9/1511:00 am -
1 stop4h 33m
Deal found 8/1![United Airlines logo]()
$575
This oojo deal was found by Cheapflights users on 8/1. 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.
Wed 9/161:28 pm -
2 stops14h 52m
Wed 9/236:10 am -
2 stops12h 57m
Deal found 8/1![WestJet logo]()
$862
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/88:34 am -
1 stop6h 12m
Tue 9/157:00 am -
1 stop5h 30m
Deal found 8/1![United Airlines logo]()
$575
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/196:47 pm -
1 stop4h 12m
Sat 9/261:00 pm -
1 stop5h 40m
Deal found 8/5![United Airlines logo]()
$575
This Air Canada deal was found by Cheapflights users on 8/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:30 am -
2 stops8h 12m
Mon 8/3110:05 am -
2 stops13h 31m
Deal found 8/5![Air Canada logo]()
$1,082
This oojo deal was found by Cheapflights users on 8/5. 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 9/36:30 am -
2 stops30h 20m
Wed 9/96:10 am -
2 stops14h 24m
Deal found 8/5![WestJet logo]()
$1,018
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 9/247:18 am -
1 stop5h 24m
Tue 9/2911:00 am -
1 stop3h 43m
Deal found 8/5![United Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 9/106:00 am -
1 stop8h 46m
Fri 9/114:00 pm -
1 stop7h 36m
Deal found 8/1![United Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 8/1. 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 11/238:35 am -
1 stop7h 12m
Wed 11/259:00 pm -
1 stop18h 58m
Deal found 8/1![United Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/196:00 am -
2 stops7h 19m
Tue 9/2211:00 am -
1 stop5h 11m
Deal found 8/5![United Airlines logo]()
$585
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/1712:05 pm -
1 stop8h 30m
Wed 10/216:05 am -
1 stop5h 43m
Deal found 8/3![United Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 8/5. 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 10/187:18 am -
1 stop5h 41m
Tue 10/273:10 pm -
1 stop8h 37m
Deal found 8/5![United Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 8/1. 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 11/236:47 am -
1 stop6h 22m
Wed 11/253:10 pm -
1 stop8h 37m
Deal found 8/1![United Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/128:30 am -
1 stop7h 46m
Tue 9/155:20 pm -
1 stop4h 40m
Deal found 8/2![United Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/235:00 am -
1 stop7h 59m
Sat 8/296:05 am -
2 stops10h 42m
Deal found 8/2![United Airlines logo]()
$699
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/186:47 pm -
2 stops13h 24m
Fri 9/2510:37 am -
1 stop5h 34m
Deal found 8/4![United Airlines logo]()
$699
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/212:20 pm -
2 stops6h 20m
Fri 9/2510:05 am -
2 stops8h 35m
Deal found 8/5![United Airlines logo]()
$996
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/186:00 am -
2 stops14h 40m
Mon 9/2110:05 am -
2 stops14h 32m
Deal found 8/3![United Airlines logo]()
$997
Last-minute flights from Milwaukee to OntarioDiscover last-minute flight deals from Milwaukee to Ontario. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Ontario. Data last updated August 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/2. 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 8/291:17 pm -
1 stop9h 12m
Tue 9/11:15 pm -
1 stop7h 44m
Deal found 8/2![American Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/11:17 pm -
1 stop9h 12m
Tue 9/81:15 pm -
1 stop8h 45m
Deal found 8/2![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 9/105:03 am -
1 stop8h 29m
Sun 9/136:30 am -
1 stop8h 46m
Deal found 8/1![American Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/127:30 am -
1 stop9h 14m
Mon 9/147:15 pm -
1 stop13h 46m
Deal found 8/3![American Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/1310:10 am -
1 stop29h 35m
Wed 9/167:45 am -
1 stop26h 23m
Deal found 8/1![Multiple Airlines logo]()
$428
This Air Canada deal was found by Cheapflights users on 8/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:00 am -
1 stop8h 20m
Sat 9/198:40 am -
1 stop8h 29m
Deal found 8/6![Air Canada logo]()
$501
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Fri 9/188:14 pm -
1 stop13h 45m
Sun 9/206:30 am -
1 stop7h 18m
Deal found 8/2![American Airlines logo]()
$457
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/188:14 pm -
1 stop13h 45m
Fri 9/2511:40 am -
1 stop9h 23m
Deal found 8/4![American Airlines logo]()
$463
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/198:31 am -
1 stop13h 55m
Mon 9/216:30 am -
1 stop14h 33m
Deal found 8/4![American Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 9/208:31 am -
1 stop13h 55m
Tue 9/221:15 pm -
1 stop7h 48m
Deal found 8/4![American Airlines logo]()
$462
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Thu 9/242:48 pm -
1 stop7h 38m
Tue 9/291:15 pm -
1 stop9h 39m
Deal found 8/2![American Airlines logo]()
$443
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/258:14 pm -
1 stop13h 45m
Sun 9/276:30 am -
1 stop7h 18m
Deal found 8/4![American Airlines logo]()
$470
One-way flights from Milwaukee to OntarioSearch for one-way flight options from Milwaukee to Ontario. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
Search for one-way flight options from Milwaukee to Ontario. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/298:03 pm -
1 stop16h 37m
Deal found 8/4![Multiple Airlines logo]()
$189
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/161:18 pm -
1 stop9h 08m
Deal found 8/2![American Airlines logo]()
$190
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Fri 10/28:14 pm -
1 stop13h 45m
Deal found 8/2![American Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/1710:10 am -
1 stop27h 23m
Deal found 8/5![Multiple Airlines logo]()
$226
This American Airlines deal was found by Cheapflights users on 8/5. 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 8/268:20 am -
1 stop9h 10m
Deal found 8/5![American Airlines logo]()
$228
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/232:20 pm -
1 stop6h 06m
Deal found 8/5![United Airlines logo]()
$228
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/288:14 pm -
1 stop14h 30m
Deal found 8/2![American Airlines logo]()
$236
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Thu 10/18:14 pm -
1 stop14h 30m
Deal found 8/3![American Airlines logo]()
$245
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/285:00 am -
1 stop4h 40m
Deal found 8/4![United Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 9/247:18 am -
2 stops11h 27m
Deal found 8/5![United Airlines logo]()
$255
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/293:15 pm -
1 stop4h 29m
Deal found 8/5![United Airlines logo]()
$259
This oojo deal was found by Cheapflights users on 8/2. 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.
Mon 9/287:14 am -
2 stops8h 31m
Deal found 8/2![WestJet logo]()
$259
Find flight deals from Milwaukee to Ontario
Keep the following information in mind while searching for Milwaukee to Ontario flight deals. Data was last updated August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $428 (Kiwi.com) |
One-way from | $189 (Kiwi.com) |
Popular in | August |
Cheapest in | September |
Average price | $988 |
Cheapflights Fare Finder
Customize your flight search to find flights from Milwaukee 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 August 6, 2026.
Use the filters below to find and compare flights from Milwaukee to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Fri 10/16
7:19 pm-10:59 am
1 stop14h 40m
Toronto Pearson Intl
Mon 10/19
6:25 pm-8:07 am
1 stop14h 42m
$458
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Wed 9/30
12:44 pm-11:50 pm
1 stop10h 06m
Montreal Pierre Elliott Trudeau Intl
Tue 10/6
6:50 pm-11:53 pm
1 stop6h 03m
$514
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Tue 11/17
6:00 am-1:28 pm
1 stop6h 28m
Montreal Pierre Elliott Trudeau Intl
Wed 11/18
3:00 pm-10:47 pm
1 stop8h 47m
$514
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Wed 12/9
7:00 am-3:58 pm
1 stop7h 58m
Montreal Pierre Elliott Trudeau Intl
Tue 12/15
6:35 pm-11:54 pm
1 stop6h 19m
$514
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Wed 9/23
2:20 pm-9:26 pm
1 stop6h 06m
Montreal Pierre Elliott Trudeau Intl
Tue 9/29
6:00 am-10:48 am
1 stop5h 48m
$514
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Wed 9/2
10:19 am-5:30 pm
1 stop6h 11m
Montreal Pierre Elliott Trudeau Intl
Wed 9/9
2:20 pm-10:36 pm
2 stops9h 16m
$523
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Tue 9/1
1:19 pm-10:06 pm
2 stops7h 47m
Montreal Pierre Elliott Trudeau Intl
Tue 9/8
6:10 am-11:30 am
1 stop6h 20m
$523
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Thu 11/19
7:00 am-10:39 pm
1 stop14h 39m
Toronto Pearson Intl
Sun 11/22
6:21 pm-7:58 am
1 stop14h 37m
$526
Quickest round-trip
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Tue 11/3
6:42 am-11:59 am
1 stop4h 17m
Toronto Pearson Intl
Tue 11/10
2:15 pm-4:57 pm
1 stop3h 42m
$551
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Fri 10/23
10:42 am-3:46 pm
1 stop4h 04m
Toronto Pearson Intl
Fri 10/23
7:00 pm-11:37 pm
1 stop5h 37m
$563
Showing 1-10 of 55 resultsSorted by cheapest first
Best time to book a flight from Milwaukee to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Milwaukee with our price prediction graph.
MKE-YYZ
MKE-YOW
MKE-YUL
MKE-YXU
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 Milwaukee to Ontario
MKE-CAON
MKE-YYZ
MKE-YOW
MKE-YUL
MKE-YXU
What is the cheapest month to book a flight from Milwaukee to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $604). Flying from Milwaukee to Region of Ontario in December is currently the most expensive (average of $1,095). 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.
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 August 6, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Milwaukee to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Milwaukee 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 Milwaukee 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 Milwaukee to Ontario by cabin class
Find flights from Milwaukee to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Milwaukee and Ontario flights
Browse other Milwaukee and Ontario flight options. Last updated on August 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Milwaukee to Ontario flights
Consider these flights traveling from Milwaukee to Ontario.
Top 2 airlines flying from Milwaukee to Ontario
Discover the top 2 airlines that operate flights from Milwaukee 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 August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$572 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$437 | Average$639 | FlexibilityNo cancel fee | On-time71% |