$160+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
Sep 27 — Oct 41
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 28, 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 28, 2026.
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Wed 9/161:18 pm -
1 stop9h 08m
Wed 9/231:15 pm -
1 stop7h 48m
Deal found 8/26![American Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/238:31 am -
1 stop13h 55m
Wed 9/306:30 am -
1 stop7h 18m
Deal found 8/24![American Airlines logo]()
$432
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 9/262:48 pm -
1 stop7h 38m
Sat 10/36:30 am -
1 stop8h 46m
Deal found 8/27![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/137:19 pm -
1 stop14h 40m
Tue 10/207:29 am -
1 stop7h 55m
Deal found 8/27![American Airlines logo]()
$448
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 10/21:18 pm -
1 stop9h 07m
Sun 10/46:25 pm -
1 stop14h 42m
Deal found 8/26![American Airlines logo]()
$457
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Wed 10/76:00 am -
1 stop9h 47m
Wed 10/147:29 am -
1 stop12h 07m
Deal found 8/26![American Airlines logo]()
$470
This deal was found by Cheapflights users on 8/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:30 am -
1 stop6h 00m
Sat 9/1911:23 am -
1 stop7h 59m
Deal found 8/26![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 10/207:18 am -
1 stop9h 12m
Wed 10/214:55 pm -
1 stop5h 30m
Deal found 8/24![United Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am -
1 stop4h 40m
Tue 9/296:00 am -
2 stops10h 11m
Deal found 8/26![United Airlines logo]()
$481
This American Airlines deal was found by Cheapflights users on 8/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am -
1 stop5h 51m
Tue 9/291:06 pm -
1 stop7h 36m
Deal found 8/25![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Tue 9/225:03 am -
1 stop11h 41m
Thu 9/246:15 am -
1 stop7h 26m
Deal found 8/26![American Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 10/245:01 am -
1 stop8h 32m
Mon 10/267:29 am -
1 stop12h 07m
Deal found 8/27![American Airlines logo]()
$494
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 28, 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 28, 2026.
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am -
1 stop4h 40m
Wed 9/306:10 am -
1 stop6h 20m
Deal found 8/26![United Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 8/26. 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.
Sat 10/104:56 pm -
1 stop5h 29m
Sat 10/176:00 am -
1 stop7h 44m
Deal found 8/26![Delta logo]()
$471
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Thu 12/105:04 am -
1 stop5h 21m
Tue 12/1512:10 pm -
1 stop7h 24m
Deal found 8/26![American Airlines logo]()
$490
This Air Canada deal was found by Cheapflights users on 8/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:15 am -
2 stops7h 35m
Sun 10/1810:05 am -
2 stops12h 20m
Deal found 8/26![Air Canada logo]()
$866
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 10/207:18 am -
1 stop9h 12m
Wed 10/214:55 pm -
1 stop5h 30m
Deal found 8/24![United Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 10/245:01 am -
1 stop8h 32m
Mon 10/267:29 am -
1 stop12h 07m
Deal found 8/27![American Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 8/27. 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.
Sat 2/209:20 am -
1 stop5h 39m
Mon 2/222:25 pm -
1 stop7h 31m
Deal found 8/27![Delta logo]()
$522
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:05 am -
1 stop6h 04m
Tue 9/296:00 am -
2 stops8h 43m
Deal found 8/26![United Airlines logo]()
$481
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am -
1 stop4h 40m
Tue 9/296:00 am -
2 stops10h 11m
Deal found 8/26![United Airlines logo]()
$481
This Delta deal was found by Cheapflights users on 8/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:35 am -
1 stop6h 44m
Mon 10/129:40 am -
1 stop7h 25m
Deal found 8/24![Delta logo]()
$559
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:20 pm -
1 stop6h 06m
Tue 9/296:00 am -
1 stop5h 48m
Deal found 8/26![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/208:39 am -
2 stops10h 06m
Tue 9/296:00 am -
2 stops10h 11m
Deal found 8/25![United Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 8/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:40 am -
1 stop4h 40m
Sun 9/136:00 am -
1 stop3h 48m
Deal found 8/24![Delta logo]()
$646
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:00 am -
2 stops9h 01m
Tue 12/157:00 am -
2 stops11h 03m
Deal found 8/26![United Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Sat 9/193:52 pm -
1 stop3h 52m
Mon 9/217:00 pm -
1 stop5h 37m
Deal found 8/25![United Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:00 am -
1 stop3h 54m
Wed 9/2312:45 pm -
2 stops7h 10m
Deal found 8/26![United Airlines logo]()
$532
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Sat 10/3112:03 pm -
1 stop3h 44m
Sun 11/19:44 am -
2 stops8h 59m
Deal found 8/25![United Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Mon 10/197:18 am -
1 stop5h 24m
Tue 10/207:30 am -
2 stops8h 41m
Deal found 8/25![United Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:05 pm -
1 stop4h 51m
Thu 9/177:00 am -
1 stop4h 00m
Deal found 8/26![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Sat 9/1910:30 am -
2 stops7h 25m
Fri 9/256:01 pm -
1 stop6h 36m
Deal found 8/25![United Airlines logo]()
$611
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:48 am -
1 stop4h 59m
Sun 11/296:45 am -
1 stop4h 28m
Deal found 8/23![United Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:00 am -
1 stop7h 59m
Sat 10/35:20 pm -
1 stop6h 39m
Deal found 8/26![United Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Thu 10/86:15 am -
1 stop6h 27m
Thu 10/155:15 pm -
1 stop5h 10m
Deal found 8/24![United Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:15 am -
2 stops7h 04m
Mon 10/55:15 pm -
1 stop6h 44m
Deal found 8/22![United Airlines logo]()
$651
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Sat 9/1912:05 pm -
1 stop8h 30m
Wed 9/303:10 pm -
1 stop9h 27m
Deal found 8/24![United Airlines logo]()
$722
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:30 am -
1 stop4h 39m
Sat 12/56:15 am -
1 stop6h 13m
Deal found 8/23![United Airlines logo]()
$722
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:15 am -
1 stop6h 44m
Thu 10/1510:37 am -
1 stop5h 34m
Deal found 8/23![United Airlines logo]()
$722
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:15 am -
2 stops7h 35m
Sat 10/1710:05 am -
2 stops10h 05m
Deal found 8/26![United Airlines logo]()
$997
This United Airlines deal was found by Cheapflights users on 8/27. 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 11/1010:48 am -
2 stops10h 04m
Wed 11/113:25 pm -
2 stops6h 25m
Deal found 8/27![United Airlines logo]()
$997
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Thu 10/87:18 am -
2 stops13h 22m
Thu 10/1510:05 am -
2 stops10h 05m
Deal found 8/24![United Airlines logo]()
$998
Last-minute flights from Milwaukee to OntarioDiscover last-minute flight deals from Milwaukee to Ontario. Data last updated August 28, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Ontario. Data last updated August 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/27. 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 9/101:28 pm -
1 stop8h 59m
Sun 9/136:00 am -
1 stop3h 48m
Deal found 8/27![Delta logo]()
$508
This deal was found by Cheapflights users on 8/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:30 am -
1 stop6h 00m
Sat 9/1911:23 am -
1 stop7h 59m
Deal found 8/26![United Airlines logo]()
$471
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Wed 9/161:18 pm -
1 stop9h 08m
Wed 9/231:15 pm -
1 stop7h 48m
Deal found 8/26![American Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 9/188:14 pm -
1 stop15h 21m
Sun 9/206:30 am -
1 stop5h 37m
Deal found 8/26![American Airlines logo]()
$503
This American Airlines deal was found by Cheapflights users on 8/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am -
1 stop5h 51m
Tue 9/291:06 pm -
1 stop7h 36m
Deal found 8/25![American Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/206:05 am -
1 stop6h 04m
Tue 9/299:15 am -
2 stops9h 25m
Deal found 8/25![United Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:20 pm -
1 stop6h 06m
Tue 9/296:00 am -
2 stops10h 11m
Deal found 8/26![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am -
1 stop4h 40m
Tue 9/296:00 am -
2 stops10h 11m
Deal found 8/26![United Airlines logo]()
$481
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Tue 9/225:03 am -
1 stop11h 41m
Thu 9/246:15 am -
1 stop7h 26m
Deal found 8/26![American Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/238:31 am -
1 stop13h 55m
Wed 9/306:30 am -
1 stop7h 18m
Deal found 8/24![American Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/2410:10 am -
2 stops29h 59m
Thu 10/16:00 am -
1 stop3h 48m
Deal found 8/25![Multiple Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 9/262:48 pm -
1 stop7h 38m
Sat 10/36:30 am -
1 stop8h 46m
Deal found 8/27![American Airlines logo]()
$439
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 28, 2026.
Search for one-way flight options from Milwaukee to Ontario. Find affordable one-way fares based on user searches. Data last updated August 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Thu 9/2410:10 am -
2 stops10h 45m
Deal found 8/24![Multiple Airlines logo]()
$160
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/238:31 am -
1 stop13h 55m
Deal found 8/24![American Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Tue 10/1310:15 am -
1 stop27h 15m
Deal found 8/26![Multiple Airlines logo]()
$193
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Fri 10/168:45 am -
1 stop13h 44m
Deal found 8/24![American Airlines logo]()
$205
This deal was found by Cheapflights users on 8/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am -
1 stop4h 40m
Deal found 8/25![United Airlines logo]()
$206
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Tue 10/136:15 am -
2 stops8h 55m
Deal found 8/25![United Airlines logo]()
$212
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Mon 9/285:00 am -
1 stop4h 40m
Deal found 8/25![United Airlines logo]()
$225
This Delta deal was found by Cheapflights users on 8/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:24 pm -
1 stop8h 32m
Deal found 8/24![Delta logo]()
$227
This Delta deal was found by Cheapflights users on 8/27. 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.
Sat 9/193:59 pm -
1 stop6h 14m
Deal found 8/27![Delta logo]()
$232
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/611:42 am -
1 stop4h 10m
Deal found 8/24![American Airlines logo]()
$233
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:18 am -
2 stops10h 44m
Deal found 8/26![United Airlines logo]()
$237
This deal was found by Cheapflights users on 8/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:00 am -
1 stop4h 40m
Deal found 8/27![United Airlines logo]()
$239
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 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $428 (American Airlines) |
One-way from | $160 (Kiwi.com) |
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 7,457,451 searches. Data last updated August 28, 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
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Sat 9/26
5:00 am-10:40 am
1 stop4h 40m
Montreal Pierre Elliott Trudeau Intl
Wed 9/30
6:10 am-11:30 am
1 stop6h 20m
$471
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Sat 10/10
4:56 pm-11:25 pm
1 stop5h 29m
Montreal Pierre Elliott Trudeau Intl
Sat 10/17
6:00 am-12:44 pm
1 stop7h 44m
$471
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Tue 10/20
7:18 am-5:30 pm
1 stop9h 12m
Montreal Pierre Elliott Trudeau Intl
Wed 10/21
4:55 pm-9:25 pm
1 stop5h 30m
$472
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Wed 9/23
6:05 am-1:09 pm
1 stop6h 04m
Montreal Pierre Elliott Trudeau Intl
Tue 9/29
6:00 am-1:43 pm
2 stops8h 43m
$481
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Tue 9/22
5:00 am-10:40 am
1 stop4h 40m
Montreal Pierre Elliott Trudeau Intl
Tue 9/29
6:00 am-3:11 pm
2 stops10h 11m
$481
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Thu 12/10
5:04 am-11:25 am
1 stop5h 21m
Montreal Pierre Elliott Trudeau Intl
Tue 12/15
12:10 pm-6:34 pm
1 stop7h 24m
$490
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Mon 9/21
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
$490
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Sat 10/24
5:01 am-2:33 pm
1 stop8h 32m
Toronto Pearson Intl
Mon 10/26
7:29 am-6:36 pm
1 stop12h 07m
$494
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Sun 9/20
8:39 am-7:45 pm
2 stops10h 06m
Montreal Pierre Elliott Trudeau Intl
Tue 9/29
6:00 am-3:11 pm
2 stops10h 11m
$505
MilwaukeeMontreal
MKE Milwaukee-Mitchell - YUL Montreal Pierre Elliott Trudeau Intl
MKEYUL
Milwaukee-Mitchell
Thu 12/10
5:00 am-3:01 pm
2 stops9h 01m
Montreal Pierre Elliott Trudeau Intl
Tue 12/15
7:00 am-5:03 pm
2 stops11h 03m
$505
Showing 1-10 of 49 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-YUL
MKE-YOW
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-YUL
MKE-YOW
MKE-YXU
What is the cheapest month to book a flight from Milwaukee to Region of Ontario?
Currently, March is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $365). Flying from Milwaukee to Region of Ontario in May is currently the most expensive (average of $1,260). 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 28, 2026.
See what other customers who have flown with United Airlines and American 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.
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
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 28, 2026.
Popular flight searches
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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 7,457,451 searches. Data last updated August 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$572 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$437 | Average$601 | FlexibilityNo cancel fee | On-time71% |