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Milwaukee

$224+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
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 March 24, 2026.

This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/26:05 am
YOW
-
MKE
1 stop4h 59m
United Airlines
Tue 5/53:25 pm
MKE
-
YOW
1 stop5h 10m
United Airlines
Deal found 3/19$357
This Air Canada deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
Sat 5/22:40 pm
YOW
-
MKE
2 stops7h 08m
Air Canada
Tue 5/55:55 am
MKE
-
YOW
2 stops7h 27m
Air Canada
Deal found 3/19$411
This American Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/1012:30 pm
YUL
-
MKE
1 stop4h 26m
American Airlines
Sun 4/126:40 pm
MKE
-
YUL
1 stop16h 04m
American Airlines
Deal found 3/21$439
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/309:30 am
YUL
-
MKE
1 stop8h 46m
Delta
Mon 5/41:55 pm
MKE
-
YUL
1 stop8h 13m
Delta
Deal found 3/19$443
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/1011:23 am
YUL
-
MKE
2 stops10h 25m
United Airlines
Sun 4/126:50 am
MKE
-
YUL
2 stops6h 50m
United Airlines
Deal found 3/21$444
This American Airlines deal was found by Cheapflights users on 3/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:25 pm
YYZ
-
MKE
1 stop14h 14m
American Airlines
Wed 7/298:09 am
MKE
-
YYZ
1 stop8h 35m
American Airlines
Deal found 3/23$445
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/134:16 pm
YUL
-
MKE
1 stop6h 25m
American Airlines
Fri 4/176:00 am
MKE
-
YUL
1 stop14h 37m
American Airlines
Deal found 3/20$453
This American Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/166:15 am
YYZ
-
MKE
1 stop8h 08m
American Airlines
Sun 4/195:06 am
MKE
-
YYZ
1 stop8h 27m
American Airlines
Deal found 3/19$470
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 5/12:29 pm
YUL
-
MKE
1 stop8h 01m
WestJet
Thu 7/26:25 pm
MKE
-
YUL
1 stop3h 45m
WestJet
Deal found 3/21$475
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/166:00 am
YUL
-
MKE
1 stop8h 14m
WestJet
Thu 4/239:35 am
MKE
-
YUL
1 stop12h 33m
WestJet
Deal found 3/19$478
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/287:10 am
YYZ
-
MKE
1 stop17h 17m
Multiple Airlines
Sat 4/41:37 pm
MKE
-
YYZ
1 stop7h 58m
Multiple Airlines
Deal found 3/19$486
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/163:25 pm
YUL
-
MKE
2 stops9h 18m
United Airlines
Thu 4/235:10 am
MKE
-
YUL
2 stops6h 59m
United Airlines
Deal found 3/19$489

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 March 24, 2026.

Round-trip from

$357
(United Airlines)

One-way from

$224
(American Airlines)
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 March 24, 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

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 5/2

6:00 am-2:27 pm

2 stops9h 27m

Milwaukee-Mitchell

Tue 5/5

5:10 am-5:07 pm

1 stop10h 57m

$357

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 6/5

5:20 pm-8:46 pm

1 stop4h 26m

Milwaukee-Mitchell

Tue 6/9

7:30 am-1:59 pm

1 stop5h 29m

$358

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 6/5

5:20 pm-10:24 pm

1 stop6h 04m

Milwaukee-Mitchell

Tue 6/9

12:15 pm-11:54 pm

2 stops10h 39m

$411

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

12:30 pm-3:56 pm

1 stop4h 26m

Milwaukee-Mitchell

Sun 4/12

6:40 pm-11:44 am

1 stop16h 04m

$439

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

9:30 am-5:16 pm

1 stop8h 46m

Milwaukee-Mitchell

Mon 5/4

1:55 pm-11:08 pm

1 stop8h 13m

$443

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 4/15

9:30 am-1:34 pm

1 stop5h 04m

Milwaukee-Mitchell

Sat 4/18

1:55 pm-11:08 pm

1 stop8h 13m

$444

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

6:10 am-10:00 am

1 stop4h 50m

Milwaukee-Mitchell

Thu 4/23

5:10 am-4:10 pm

2 stops10h 00m

$444

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

11:23 am-6:47 pm

2 stops8h 24m

Milwaukee-Mitchell

Sun 4/12

5:10 am-10:40 am

1 stop4h 30m

$444

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

6:00 am-1:14 pm

1 stop8h 14m

Milwaukee-Mitchell

Thu 4/23

9:35 am-11:08 pm

1 stop12h 33m

$478

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 7/18

1:16 pm-8:00 pm

1 stop7h 44m

Milwaukee-Mitchell

Mon 7/27

8:09 am-11:29 pm

1 stop14h 20m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 40 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, June is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of $83). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of $177). 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 4h 26m. United Airlines provides one of the quickest options available for as low as $439. 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, June is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of $83). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of $177). 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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