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Milwaukee

$207+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
Jun 5 — Jun 121
Fri 6/5
Fri 6/12
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 May 6, 2026.

This American Airlines deal was found by Cheapflights users on 5/3. 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 6/211:39 am
YYZ
-
MKE
1 stop11h 45m
American Airlines
Tue 6/910:00 am
MKE
-
YYZ
1 stop12h 29m
American Airlines
Deal found 5/3$392
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 6/16:26 pm
YYZ
-
MKE
1 stop14h 16m
American Airlines
Sat 6/201:14 pm
MKE
-
YYZ
1 stop9h 09m
American Airlines
Deal found 4/30$408
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Mon 6/17:45 am
YYZ
-
MKE
1 stop25h 16m
Multiple Airlines
Sat 6/2012:08 pm
MKE
-
YYZ
2 stops30h 57m
Multiple Airlines
Deal found 4/30$420
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/296:26 pm
YYZ
-
MKE
1 stop14h 16m
American Airlines
Sun 5/317:30 am
MKE
-
YYZ
1 stop14h 54m
American Airlines
Deal found 5/2$423
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/39:50 am
YYZ
-
MKE
1 stop23h 11m
Multiple Airlines
Mon 6/812:09 pm
MKE
-
YYZ
2 stops27h 36m
Multiple Airlines
Deal found 5/2$428
This American Airlines deal was found by Cheapflights users on 5/5. 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 6/41:15 pm
YYZ
-
MKE
1 stop8h 50m
American Airlines
Sat 6/65:00 am
MKE
-
YYZ
1 stop11h 44m
American Airlines
Deal found 5/5$441
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/295:50 pm
YOW
-
MKE
1 stop6h 44m
United Airlines
Fri 6/53:12 pm
MKE
-
YOW
1 stop5h 23m
United Airlines
Deal found 5/1$443
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 6/159:50 am
YYZ
-
MKE
1 stop23h 08m
Multiple Airlines
Mon 6/2212:08 pm
MKE
-
YYZ
2 stops27h 37m
Multiple Airlines
Deal found 5/1$447
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 5/1811:33 am
YYZ
-
MKE
1 stop11h 26m
American Airlines
Mon 5/256:08 am
MKE
-
YYZ
1 stop7h 22m
American Airlines
Deal found 4/30$454
This United Airlines deal was found by Cheapflights users on 5/2. 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 5/235:25 pm
YOW
-
MKE
1 stop4h 31m
United Airlines
Wed 5/277:08 pm
MKE
-
YOW
1 stop13h 03m
United Airlines
Deal found 5/2$467
This American Airlines deal was found by Cheapflights users on 5/1. 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 7/117:20 am
YYZ
-
MKE
1 stop13h 36m
American Airlines
Sat 7/189:13 am
MKE
-
YYZ
1 stop7h 26m
American Airlines
Deal found 5/1$468
This American Airlines deal was found by Cheapflights users on 5/1. 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 6/156:24 pm
YYZ
-
MKE
1 stop14h 18m
American Airlines
Wed 9/166:22 am
MKE
-
YYZ
1 stop9h 12m
American Airlines
Deal found 5/1$472

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 May 6, 2026.

Round-trip from

$392
(American Airlines)

One-way from

$207
(Kiwi.com)
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 May 6, 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

Fri 5/29

5:50 pm-11:34 pm

1 stop6h 44m

Milwaukee-Mitchell

Fri 6/5

3:12 pm-9:35 pm

1 stop5h 23m

$443

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 5/23

6:05 am-12:47 pm

2 stops7h 42m

Milwaukee-Mitchell

Wed 5/27

1:30 pm-10:05 pm

2 stops7h 35m

$467
Quickest round-trip

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 5/23

6:00 am-8:49 am

1 stop3h 49m

Milwaukee-Mitchell

Wed 5/27

7:00 am-11:59 am

1 stop3h 59m

$498

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 6/4

6:00 am-12:28 pm

1 stop7h 28m

Milwaukee-Mitchell

Sun 6/7

6:49 pm-11:28 pm

1 stop3h 39m

$499

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 5/26

1:00 pm-8:56 pm

1 stop8h 56m

Milwaukee-Mitchell

Wed 5/27

2:50 pm-11:18 pm

1 stop7h 28m

$515

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 6/2

9:15 am-6:51 pm

2 stops10h 36m

Milwaukee-Mitchell

Tue 6/9

1:30 pm-12:13 am

2 stops9h 43m

$523

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 5/31

8:50 am-7:51 pm

1 stop12h 01m

Milwaukee-Mitchell

Sun 6/7

1:30 pm-11:03 pm

1 stop8h 33m

$553

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 7/24

7:51 am-11:44 pm

1 stop16h 53m

Milwaukee-Mitchell

Sat 8/1

6:01 am-4:54 pm

1 stop9h 53m

$573

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 7/11

7:30 pm-11:34 pm

1 stop5h 04m

Milwaukee-Mitchell

Sat 7/18

7:20 am-7:02 pm

2 stops10h 42m

$573

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 6/19

11:23 am-6:26 pm

1 stop8h 03m

Milwaukee-Mitchell

Sat 6/27

7:20 am-6:20 pm

2 stops10h 00m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Showing 1-10 of 48 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 December is currently the most expensive (average of $558). 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 3h 49m. United Airlines provides one of the quickest options available for as low as $498. 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 December is currently the most expensive (average of $558). 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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