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Cheap flights from Ontario to Milwaukee from C$ 233

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
27 Apr — 4 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Milwaukee

Enter your travel dates to find the best prices.

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 28 March 2026.

Wed 6/56:15 a.m.
YYZ
-
MKE
1 stop8h 08m
American Airlines
Wed 13/57:01 a.m.
MKE
-
YYZ
1 stop15h 28m
American Airlines
Deal found 26/3C$ 458
Fri 22/56:26 p.m.
YYZ
-
MKE
1 stop14h 16m
American Airlines
Tue 26/57:25 a.m.
MKE
-
YYZ
1 stop14h 59m
American Airlines
Deal found 26/3C$ 478
Fri 5/66:25 a.m.
YOW
-
MKE
1 stop4h 32m
United Airlines
Tue 9/612:15 p.m.
MKE
-
YOW
1 stop8h 20m
United Airlines
Deal found 25/3C$ 494
Thu 7/51:15 p.m.
YYZ
-
MKE
1 stop11h 25m
American Airlines
Mon 11/56:40 p.m.
MKE
-
YYZ
1 stop15h 13m
American Airlines
Deal found 26/3C$ 499
Sat 9/56:15 a.m.
YYZ
-
MKE
1 stop8h 08m
American Airlines
Sat 16/55:37 p.m.
MKE
-
YYZ
1 stop16h 16m
American Airlines
Deal found 25/3C$ 501
Fri 8/53:13 p.m.
YYZ
-
MKE
1 stop9h 27m
American Airlines
Mon 11/56:40 p.m.
MKE
-
YYZ
1 stop15h 13m
American Airlines
Deal found 26/3C$ 520
Thu 7/56:15 a.m.
YYZ
-
MKE
1 stop10h 41m
American Airlines
Sun 10/57:01 a.m.
MKE
-
YYZ
1 stop15h 28m
American Airlines
Deal found 24/3C$ 534
Fri 8/56:15 a.m.
YYZ
-
MKE
1 stop10h 41m
American Airlines
Sun 10/51:53 p.m.
MKE
-
YYZ
1 stop8h 36m
American Airlines
Deal found 26/3C$ 553
Sun 17/51:15 p.m.
YYZ
-
MKE
1 stop7h 51m
American Airlines
Mon 25/57:25 a.m.
MKE
-
YYZ
1 stop14h 59m
American Airlines
Deal found 26/3C$ 568
Fri 5/65:20 p.m.
YOW
-
MKE
1 stop6h 04m
Air Canada
Tue 9/612:15 p.m.
MKE
-
YOW
2 stops10h 39m
Air Canada
Deal found 24/3C$ 568
Fri 8/55:00 p.m.
YUL
-
MKE
1 stop6h 03m
United Airlines
Sun 10/56:49 a.m.
MKE
-
YUL
2 stops6h 51m
United Airlines
Deal found 27/3C$ 611
Wed 15/49:30 a.m.
YUL
-
MKE
1 stop5h 04m
Delta
Sat 18/45:05 p.m.
MKE
-
YUL
1 stop5h 03m
Delta
Deal found 25/3C$ 613

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 28 March 2026.

Round-trip from

C$ 458

One-way from

C$ 233
American Airlines
  • American Airlines
  • 6/5-13/5
  • 2 total stops
  • 23h 36m total
  • Ontario to Milwaukee
Search Deals
11/5
  • 11/5
  • 1 total stop
  • 16h 11m total
  • Ontario to Milwaukee
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 629,999 searches. Data last updated 28 March 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 5/6

6:25 a.m.-9:57 a.m.

1 stop4h 32m

Milwaukee-Mitchell

Tue 9/6

12:15 p.m.-9:35 p.m.

1 stop8h 20m

C$ 494

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 5/6

5:20 p.m.-10:24 p.m.

1 stop6h 04m

Milwaukee-Mitchell

Tue 9/6

12:15 p.m.-11:54 p.m.

2 stops10h 39m

C$ 568

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

3:25 p.m.-11:59 p.m.

2 stops9h 34m

Milwaukee-Mitchell

Sun 10/5

6:00 a.m.-2:40 p.m.

2 stops7h 40m

C$ 611

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

9:30 a.m.-1:34 p.m.

1 stop5h 04m

Milwaukee-Mitchell

Sat 18/4

5:05 p.m.-11:08 p.m.

1 stop5h 03m

C$ 613

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 22/7

6:25 p.m.-7:39 a.m.

1 stop14h 14m

Milwaukee-Mitchell

Wed 29/7

8:09 a.m.-5:44 p.m.

1 stop8h 35m

C$ 617

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 10/4

7:29 a.m.-10:57 p.m.

1 stop16h 28m

Milwaukee-Mitchell

Mon 20/4

5:41 p.m.-11:44 a.m.

1 stop17h 03m

C$ 645

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Mon 4/5

11:33 a.m.-10:00 p.m.

1 stop11h 27m

Milwaukee-Mitchell

Sun 28/6

5:00 a.m.-2:32 p.m.

1 stop8h 32m

C$ 653

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

6:00 a.m.-1:11 p.m.

2 stops8h 11m

Milwaukee-Mitchell

Sat 16/5

5:55 a.m.-4:10 p.m.

2 stops9h 15m

C$ 654

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 10/4

4:35 p.m.-12:52 p.m.

1 stop21h 17m

Milwaukee-Mitchell

Mon 20/4

6:23 p.m.-12:30 a.m.

2 stops29h 07m

C$ 666

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

6:00 a.m.-5:58 p.m.

1 stop12h 58m

Milwaukee-Mitchell

Thu 2/7

3:58 p.m.-11:42 p.m.

1 stop6h 44m

C$ 670

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/3

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 C$ 115). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 245). 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?

    Located just 10.3 km from the city centre, Milwaukee-Mitchell (MKE) is the airport most travelers will use when flying to Milwaukee from Ontario.

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

    United Airlines, Air Canada, and Delta can get you from Region of Ontario to Milwaukee in just under 4h 32m. Your travel time can differ by up to 1h 32m. Region of Ontario and Milwaukee are separated by a distance of 1009 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 C$ 115). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 245). 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

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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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Top 2 airlines flying from Ontario to Milwaukee

Discover the top 2 airlines that operate flights from Ontario to Milwaukee. 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 629,999 searches. Data last updated 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 466AverageC$ 780FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 628AverageC$ 834FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Milwaukee?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Milwaukee from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario to Milwaukee?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Milwaukee for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Milwaukee with no change fees?

Need flexible booking options for your flight to Milwaukee from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Milwaukee become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Milwaukee flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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