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$176+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/68:20 pmYYZ - MKE
1 stop14h 19mMultiple Airlines
Mon 12/810:34 amMKE - YYZ
1 stop12h 51mMultiple Airlines
Deal found 10/29$309
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/2411:32 amYYZ - MKE
1 stop7h 11mAmerican Airlines
Mon 12/16:59 pmMKE - YYZ
1 stop14h 54mAmerican Airlines
Deal found 10/29$337
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/148:20 pmYYZ - MKE
1 stop14h 19mMultiple Airlines
Sun 12/218:06 pmMKE - YYZ
1 stop14h 37mMultiple Airlines
Deal found 10/30$361
This Delta deal was found by Cheapflights users on 10/29. 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 11/139:26 amYUL - MKE
1 stop8h 53mDelta
Wed 11/191:22 pmMKE - YUL
1 stop9h 04mDelta
Deal found 10/29$436
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/214:45 pmYUL - MKE
1 stop5h 05mUnited Airlines
Fri 11/2810:53 amMKE - YUL
2 stops7h 55mUnited Airlines
Deal found 10/30$438
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/106:00 amYUL - MKE
1 stop8h 58mUnited Airlines
Thu 11/135:00 amMKE - YUL
2 stops9h 16mUnited Airlines
Deal found 10/29$445
This American Airlines deal was found by Cheapflights users on 10/30. 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 11/212:29 pmYUL - MKE
1 stop10h 33mAmerican Airlines
Fri 11/288:14 pmMKE - YUL
1 stop17h 55mAmerican Airlines
Deal found 10/30$447
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:14 pmYYZ - MKE
1 stop20h 01mAmerican Airlines
Fri 11/288:52 amMKE - YYZ
1 stop11h 37mAmerican Airlines
Deal found 10/29$449
This Kissandfly.com deal was found by Cheapflights users on 10/29. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:00 amYUL - MKE
2 stops9h 07mLufthansa
Wed 11/196:05 amMKE - YUL
1 stop6h 55mLufthansa
Deal found 10/29$459
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/73:52 pmYUL - MKE
1 stop17h 23mAmerican Airlines
Mon 11/103:49 pmMKE - YUL
1 stop5h 50mAmerican Airlines
Deal found 10/28$464
This Air Canada deal was found by Cheapflights users on 10/30. 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.
Fri 11/213:30 pmYUL - MKE
2 stops7h 29mAir Canada
Fri 11/2810:53 amMKE - YUL
2 stops8h 51mAir Canada
Deal found 10/30$490
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/74:45 pmYUL - MKE
1 stop6h 14mUnited Airlines
Sun 11/95:00 amMKE - YUL
2 stops9h 16mUnited Airlines
Deal found 10/30$493

Cheap flight deals from Ontario to Milwaukee

Keep the following information in mind while searching for Ontario to Milwaukee flight deals. Data was last updated October 30, 2025.

Round-trip from

$301
(United Airlines)

One-way from

$176
(Trip.com)

Popular in

August

Cheapest in

February

Average price

$486
From Ontario to Milwaukee-Mitchell
Search Deals
One-way flight from Ontario to Milwaukee-Mitchell
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 30, 2025.
Use the filters below to find and compare flights from Ontario to Milwaukee that are best for you.

Fly from

Ontario

Fly to

Milwaukee

Route

Depart

Return

Price

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Tue 4/14

6:52 am-9:49 am

1 stop3h 57m

Milwaukee-Mitchell

Sat 4/18

3:00 pm-9:56 pm

1 stop5h 56m

$301

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 12/6

8:20 pm-9:39 am

1 stop14h 19m

Milwaukee-Mitchell

Mon 12/8

10:34 am-12:25 am

1 stop12h 51m

$309

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Mon 11/24

11:32 am-5:43 pm

1 stop7h 11m

Milwaukee-Mitchell

Mon 12/1

6:59 pm-10:53 am

1 stop14h 54m

$337

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Tue 4/14

2:50 pm-10:09 pm

2 stops8h 19m

Milwaukee-Mitchell

Sat 4/18

7:00 am-2:13 pm

2 stops6h 13m

$354

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 12/14

8:20 pm-9:39 am

1 stop14h 19m

Milwaukee-Mitchell

Sun 12/21

8:06 pm-11:43 am

1 stop14h 37m

$361

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 2/18

8:30 pm-12:51 pm

2 stops17h 21m

Milwaukee-Mitchell

Thu 2/19

8:24 pm-11:28 am

1 stop14h 04m

$383

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 11/13

9:26 am-5:19 pm

1 stop8h 53m

Milwaukee-Mitchell

Wed 11/19

1:22 pm-11:26 pm

1 stop9h 04m

$436

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 11/21

4:45 pm-8:50 pm

1 stop5h 05m

Milwaukee-Mitchell

Fri 11/28

10:53 am-7:48 pm

2 stops7h 55m

$438

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 2/26

6:30 pm-12:35 pm

1 stop19h 05m

Milwaukee-Mitchell

Mon 3/2

1:25 pm-10:54 pm

1 stop8h 29m

$444

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Mon 11/10

6:00 am-12:42 pm

1 stop7h 42m

Milwaukee-Mitchell

Thu 11/13

6:00 am-1:39 pm

1 stop6h 39m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 30 results
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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 $190). 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.

What is the cheapest time of day to fly from ON to MKE?

Find hourly flight availability from Ontario to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from Region of Ontario to Milwaukee is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 53% on airfare.

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 3h 57m. United Airlines provides one of the quickest options available for as low as $301. Airlines will cover a distance of 627 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 $190). 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
New Berlin
Oak Creek
Wauwatosa

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Alternative routes for Ontario to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
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