$199+ Cheap flights from Milwaukee (MKE) to Ontario
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
Dec 10 — Dec 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Milwaukee to Ontario
Cheapest
Best
Last-minute
One-way
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 November 10, 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 November 10, 2026.
This Thrive Travel deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:04 am -
1 stop17h 42m
Wed 11/116:21 pm -
1 stop5h 16m
Deal found 11/8![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/276:11 pm -
1 stop18h 29m
Fri 12/46:30 am -
1 stop10h 56m
Deal found 11/5![Multiple Airlines logo]()
$427
This Thrive Travel deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:48 am -
1 stop14h 11m
Tue 12/17:09 am -
1 stop4h 57m
Deal found 11/9![Multiple Airlines logo]()
$448
This Thrive Travel deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:00 am -
1 stop8h 42m
Sun 12/134:09 pm -
1 stop5h 14m
Deal found 11/8![Multiple Airlines logo]()
$489
This Thrive Travel deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:37 am -
1 stop25h 56m
Wed 12/29:45 am -
1 stop3h 47m
Deal found 11/9![Multiple Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2412:50 pm -
2 stops29h 08m
Thu 12/317:15 am -
1 stop17h 23m
Deal found 11/9![Multiple Airlines logo]()
$576
This American Airlines deal was found by Cheapflights users on 11/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:00 am -
1 stop10h 31m
Sat 12/1211:36 am -
1 stop9h 24m
Deal found 11/6![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 11/2511:36 am -
1 stop5h 04m
Tue 12/11:16 pm -
1 stop10h 24m
Deal found 11/9![American Airlines logo]()
$583
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:30 am -
1 stop29h 10m
Sun 12/202:40 pm -
1 stop27h 22m
Deal found 11/6![Multiple Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 11/277:33 pm -
1 stop16h 02m
Wed 12/212:30 pm -
1 stop12h 29m
Deal found 11/9![American Airlines logo]()
$588
This American Airlines deal was found by Cheapflights users on 11/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/125:00 am -
1 stop10h 30m
Mon 12/1411:36 am -
1 stop9h 24m
Deal found 11/6![American Airlines logo]()
$590
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/810:55 am -
1 stop25h 16m
Tue 12/156:00 am -
1 stop13h 03m
Deal found 11/9![United Airlines logo]()
$783
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 November 10, 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 November 10, 2026.
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 11/2511:36 am -
1 stop5h 04m
Tue 12/11:16 pm -
1 stop10h 24m
Deal found 11/9![American Airlines logo]()
$583
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 1/126:50 pm -
1 stop13h 57m
Wed 1/1312:55 pm -
1 stop5h 53m
Deal found 11/7![United Airlines logo]()
$601
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:43 pm -
1 stop3h 16m
Mon 1/119:45 am -
1 stop3h 57m
Deal found 11/6![Delta logo]()
$644
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 11/226:11 pm -
1 stop21h 34m
Tue 11/248:00 am -
1 stop10h 26m
Deal found 11/5![Multiple Airlines logo]()
$910
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/105:00 am -
1 stop10h 30m
Sun 12/1311:36 am -
1 stop12h 01m
Deal found 11/5![American Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/305:00 am -
1 stop3h 47m
Tue 12/15:55 pm -
1 stop4h 00m
Deal found 11/5![United Airlines logo]()
$624
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/27:10 am -
1 stop3h 18m
Wed 1/139:45 am -
1 stop3h 57m
Deal found 11/6![Delta logo]()
$644
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/288:50 am -
1 stop4h 13m
Thu 12/37:26 pm -
1 stop4h 29m
Deal found 11/5![United Airlines logo]()
$624
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 11/227:00 am -
1 stop5h 30m
Sat 11/285:15 pm -
1 stop4h 50m
Deal found 11/8![Delta logo]()
$644
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:38 pm -
1 stop5h 37m
Sat 12/129:44 am -
2 stops8h 34m
Deal found 11/6![United Airlines logo]()
$635
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 3/133:15 pm -
1 stop6h 49m
Fri 3/196:00 am -
1 stop3h 45m
Deal found 11/9![Delta logo]()
$644
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/102:23 pm -
1 stop6h 11m
Sun 4/113:00 pm -
1 stop6h 45m
Deal found 11/6![United Airlines logo]()
$644
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/810:55 am -
1 stop10h 01m
Tue 12/156:00 am -
2 stops12h 18m
Deal found 11/9![United Airlines logo]()
$793
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:10 pm -
1 stop25h 46m
Fri 12/116:00 am -
1 stop13h 03m
Deal found 11/6![United Airlines logo]()
$803
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/67:39 am -
1 stop5h 30m
Thu 1/76:15 am -
1 stop11h 31m
Deal found 11/6![United Airlines logo]()
$916
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 4/3012:14 pm -
1 stop4h 00m
Mon 5/35:20 pm -
1 stop6h 19m
Deal found 11/8![United Airlines logo]()
$916
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/255:00 am -
2 stops7h 11m
Fri 1/19:45 am -
2 stops9h 06m
Deal found 11/9![United Airlines logo]()
$931
Last-minute flights from Milwaukee to OntarioDiscover last-minute flight deals from Milwaukee to Ontario. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Ontario. Data last updated November 10, 2026 and is based on user searches.
This Thrive Travel deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:04 am -
1 stop17h 42m
Wed 11/116:21 pm -
1 stop5h 16m
Deal found 11/8![Multiple Airlines logo]()
$395
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 11/2511:36 am -
1 stop5h 04m
Tue 12/11:16 pm -
1 stop10h 24m
Deal found 11/9![American Airlines logo]()
$583
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/276:11 pm -
1 stop18h 29m
Fri 12/46:30 am -
1 stop10h 56m
Deal found 11/5![Multiple Airlines logo]()
$427
This Thrive Travel deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:48 am -
1 stop14h 11m
Tue 12/17:09 am -
1 stop4h 57m
Deal found 11/9![Multiple Airlines logo]()
$448
This Thrive Travel deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:37 am -
1 stop25h 56m
Wed 12/29:45 am -
1 stop3h 47m
Deal found 11/9![Multiple Airlines logo]()
$522
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 11/277:33 pm -
1 stop16h 02m
Wed 12/212:30 pm -
1 stop12h 29m
Deal found 11/9![American Airlines logo]()
$588
This American Airlines deal was found by Cheapflights users on 11/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:00 am -
1 stop10h 31m
Sat 12/1211:36 am -
1 stop9h 24m
Deal found 11/6![American Airlines logo]()
$577
This Thrive Travel deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:00 am -
1 stop8h 42m
Sun 12/134:09 pm -
1 stop5h 14m
Deal found 11/8![Multiple Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/810:55 am -
1 stop25h 16m
Tue 12/156:00 am -
1 stop13h 03m
Deal found 11/9![United Airlines logo]()
$783
This American Airlines deal was found by Cheapflights users on 11/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/125:00 am -
1 stop10h 30m
Mon 12/1411:36 am -
1 stop9h 24m
Deal found 11/6![American Airlines logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:30 am -
1 stop29h 10m
Sun 12/202:40 pm -
1 stop27h 22m
Deal found 11/6![Multiple Airlines logo]()
$584
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2412:50 pm -
2 stops29h 08m
Thu 12/317:15 am -
1 stop17h 23m
Deal found 11/9![Multiple Airlines logo]()
$576
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 November 10, 2026.
Search for one-way flight options from Milwaukee to Ontario. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:30 am -
1 stop13h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/276:11 pm -
1 stop18h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$200
This Thrive Travel deal was found by Cheapflights users on 11/6. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:48 am -
1 stop7h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Porter Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 11/256:11 pm -
1 stop18h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/118:12 pm -
1 stop13h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![American Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/157:00 am -
1 stop10h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 11/5. 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 11/283:59 pm -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Delta logo]()
$274
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/283:33 pm -
1 stop4h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![United Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/257:33 am -
1 stop9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![American Airlines logo]()
$280
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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $427 (Kiwi.com) |
One-way from | $199 (Kiwi.com) |
Popular in | May |
Cheapest in | October |
Average price | $725 |
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 November 10, 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 12/11
8:12 pm-10:56 am
1 stop13h 44m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$265
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Fri 12/25
7:33 am-5:38 pm
1 stop9h 05m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$265
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Tue 12/1
7:00 am-9:15 pm
1 stop13h 15m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$275
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Sat 11/28
3:33 pm-9:15 pm
1 stop4h 42m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$275
Quickest round-trip
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Sat 11/28
10:53 am-3:59 pm
1 stop4h 06m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$284
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Tue 3/16
6:00 am-1:33 pm
1 stop6h 33m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$284
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Fri 12/11
2:51 pm-11:48 pm
2 stops7h 57m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$287
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Wed 11/25
6:47 am-2:25 pm
2 stops6h 38m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$289
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Wed 12/16
10:38 am-11:26 pm
2 stops11h 48m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$289
MilwaukeeToronto
MKE Milwaukee-Mitchell - YYZ Toronto Pearson Intl
MKEYYZ
Milwaukee-Mitchell
Tue 12/15
8:30 am-7:01 pm
2 stops9h 31m
Toronto Pearson Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$289
Showing 1-10 of 27 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
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
What is the cheapest month to book a flight from Milwaukee to Region of Ontario?
Currently, September is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $580). 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 November 10, 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.
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Milwaukee to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from 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 November 10, 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 7,457,451 searches. Data last updated November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$572 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$417 | Average$553 | FlexibilityNo cancel fee | On-time71% |