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Milwaukee

$222+ Cheap flights from Ontario to Milwaukee (MKE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
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Cheap flight deals from Ontario to Milwaukee

Cheapest flights from Ontario to Milwaukee
Explore the most affordable flight options available from Ontario to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.

This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 9/163:25 pm
YUL
-
MKE
1 stop9h 12m
United Airlines
Sat 9/1910:30 am
MKE
-
YUL
1 stop9h 56m
United Airlines
Deal found 6/17$385
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 9/231:15 pm
YYZ
-
MKE
1 stop7h 48m
American Airlines
Sat 9/265:03 am
MKE
-
YYZ
1 stop8h 29m
American Airlines
Deal found 6/17$385
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/412:47 pm
YUL
-
MKE
1 stop8h 35m
Delta
Sat 9/124:57 pm
MKE
-
YUL
1 stop5h 30m
Delta
Deal found 6/15$386
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/296:10 am
YUL
-
MKE
1 stop12h 15m
United Airlines
Tue 9/110:19 am
MKE
-
YUL
1 stop6h 11m
United Airlines
Deal found 6/16$387
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/226:10 am
YUL
-
MKE
1 stop4h 43m
United Airlines
Wed 7/295:00 am
MKE
-
YUL
1 stop4h 40m
United Airlines
Deal found 6/16$388
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 8/297:55 am
YUL
-
MKE
1 stop5h 28m
American Airlines
Tue 9/16:20 am
MKE
-
YUL
1 stop5h 07m
American Airlines
Deal found 6/17$389
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:14 pm
YYZ
-
MKE
1 stop8h 07m
American Airlines
Tue 7/216:01 am
MKE
-
YYZ
1 stop10h 33m
American Airlines
Deal found 6/16$393
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 11/711:00 am
YUL
-
MKE
2 stops8h 39m
United Airlines
Wed 11/116:10 am
MKE
-
YUL
1 stop9h 11m
United Airlines
Deal found 6/18$397
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/226:25 pm
YYZ
-
MKE
1 stop14h 36m
American Airlines
Fri 9/258:14 pm
MKE
-
YYZ
1 stop13h 45m
American Airlines
Deal found 6/16$398
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/106:30 am
YYZ
-
MKE
1 stop7h 18m
American Airlines
Sat 9/127:30 am
MKE
-
YYZ
1 stop9h 14m
American Airlines
Deal found 6/16$401
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:05 pm
YUL
-
MKE
1 stop11h 39m
American Airlines
Sat 7/255:58 pm
MKE
-
YUL
1 stop17h 31m
American Airlines
Deal found 6/14$404
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/116:00 am
YYZ
-
MKE
1 stop7h 40m
American Airlines
Tue 7/147:25 am
MKE
-
YYZ
1 stop15h 04m
American Airlines
Deal found 6/16$411

Find flight deals from Ontario to Milwaukee

Keep the following information in mind while searching for Ontario to Milwaukee flight deals. Data was last updated June 18, 2026.

Round-trip from

$385
(United Airlines)

One-way from

$222
(Delta)
From Ontario to Milwaukee-Mitchell
Search Deals
One-way flight from Ontario to Milwaukee-Mitchell
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Milwaukee that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
Use the filters below to find and compare flights from Ontario to Milwaukee that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 9/16

3:25 pm-11:37 pm

1 stop9h 12m

Milwaukee-Mitchell

Sat 9/19

10:30 am-9:26 pm

1 stop9h 56m

$385

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

6:00 am-12:27 pm

1 stop7h 27m

Milwaukee-Mitchell

Wed 11/11

5:00 pm-11:10 pm

1 stop5h 10m

$385

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 7/4

9:15 am-4:42 pm

2 stops8h 27m

Milwaukee-Mitchell

Sat 9/12

10:30 am-10:06 pm

2 stops10h 36m

$386

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 9/16

9:30 am-5:07 pm

1 stop8h 37m

Milwaukee-Mitchell

Sat 9/19

4:47 pm-11:22 pm

1 stop5h 35m

$386

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

7:00 am-5:13 pm

2 stops11h 13m

Milwaukee-Mitchell

Wed 11/11

6:00 am-3:02 pm

2 stops8h 02m

$386

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 8/29

6:10 am-5:25 pm

1 stop12h 15m

Milwaukee-Mitchell

Tue 9/1

10:19 am-5:30 pm

1 stop6h 11m

$387
Quickest round-trip

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 7/22

6:10 am-9:53 am

1 stop4h 43m

Milwaukee-Mitchell

Wed 7/29

5:00 am-10:40 am

1 stop4h 40m

$388

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 7/11

6:00 am-12:40 pm

1 stop7h 40m

Milwaukee-Mitchell

Tue 7/14

7:25 am-11:29 pm

1 stop15h 04m

$411

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 7/15

1:00 pm-6:48 pm

1 stop6h 48m

Milwaukee-Mitchell

Sat 7/18

5:00 am-9:54 am

1 stop3h 54m

$428

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 7/7

10:15 am-2:36 pm

1 stop5h 21m

Milwaukee-Mitchell

Wed 7/8

7:50 am-7:02 pm

2 stops10h 12m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 34 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Ontario with our price prediction graph.
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 Ontario to Milwaukee

What is the cheapest month to book a flight from Region of Ontario to Milwaukee?

Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of $178). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of $687). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Region of Ontario to Milwaukee?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Milwaukee from Ontario?

    Milwaukee-Mitchell (MKE), located 6.4 mi from the city center, is the airport you fly into when you book flights from Ontario to Milwaukee.

  • How long is the flight from Region of Ontario to Milwaukee?

    A quick flight from Region of Ontario to Milwaukee can take about 7h 27m. United Airlines provides one of the quickest options available for as low as $385. Airlines will cover a distance of 720 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Region of Ontario to Milwaukee?

    The most popular route from Region of Ontario to Milwaukee is Toronto Pearson Intl - Milwaukee-Mitchell. You may also consider Montreal Pierre Elliott Trudeau Intl - Milwaukee-Mitchell or Ottawa - Milwaukee-Mitchell.

  • Can I find deals for flights from Ontario to Milwaukee that include hotel bookings?

    Yes. In addition to deals on Ontario to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Milwaukee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Milwaukee.

  • Can I find deals for business class flights from Ontario to Milwaukee?

    Yes. Cheapflights offers flight deals from Ontario to Milwaukee by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to Milwaukee?

    Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of $178). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of $687). 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.

See more FAQs

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Port Washington
New Berlin
Oak Creek
Wauwatosa

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