Find flights
When to book
FAQs

Cheap flights from Ontario to Milwaukee from C$ 262

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
27 Feb — 6 Mar1
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 January 2026.

Thu 26/25:11 p.m.
YOW
-
MKE
1 stop5h 33m
United Airlines
Mon 2/31:25 p.m.
MKE
-
YOW
2 stops7h 31m
United Airlines
Deal found 25/1C$ 426
Wed 18/27:30 a.m.
YUL
-
MKE
2 stops11h 24m
American Airlines
Wed 25/25:00 a.m.
MKE
-
YUL
1 stop9h 04m
American Airlines
Deal found 27/1C$ 513
Sat 7/31:10 p.m.
YYZ
-
MKE
1 stop7h 49m
American Airlines
Sun 8/37:57 a.m.
MKE
-
YYZ
1 stop7h 06m
American Airlines
Deal found 26/1C$ 514
Wed 18/211:40 a.m.
YYZ
-
MKE
1 stop7h 14m
American Airlines
Wed 25/26:00 a.m.
MKE
-
YYZ
1 stop10h 36m
American Airlines
Deal found 27/1C$ 518
Thu 26/25:40 a.m.
YOW
-
MKE
2 stops11h 28m
Delta
Mon 2/31:21 p.m.
MKE
-
YOW
2 stops10h 18m
Delta
Deal found 25/1C$ 573
Wed 18/24:45 p.m.
YUL
-
MKE
1 stop5h 10m
United Airlines
Sat 21/29:44 a.m.
MKE
-
YUL
2 stops10h 58m
United Airlines
Deal found 25/1C$ 575
Wed 18/26:00 a.m.
YUL
-
MKE
1 stop7h 34m
Delta
Sat 21/25:00 p.m.
MKE
-
YUL
1 stop5h 10m
Delta
Deal found 26/1C$ 585
Wed 18/28:30 p.m.
YYZ
-
MKE
2 stops38h 13m
Multiple Airlines
Wed 25/24:39 p.m.
MKE
-
YYZ
1 stop30h 35m
Multiple Airlines
Deal found 27/1C$ 595
Thu 12/211:40 a.m.
YYZ
-
MKE
1 stop12h 17m
American Airlines
Sun 15/28:00 a.m.
MKE
-
YYZ
1 stop7h 03m
American Airlines
Deal found 27/1C$ 627
Thu 26/24:45 p.m.
YYZ
-
MKE
1 stop23h 06m
Alaska Airlines
Mon 2/33:47 p.m.
MKE
-
YYZ
1 stop22h 48m
Alaska Airlines
Deal found 27/1C$ 637
Fri 19/67:00 a.m.
YUL
-
MKE
1 stop10h 42m
WestJet
Mon 22/69:10 a.m.
MKE
-
YUL
1 stop13h 24m
WestJet
Deal found 27/1C$ 645
Wed 18/22:13 p.m.
YUL
-
MKE
2 stops8h 31m
Air Canada
Sat 21/29:44 a.m.
MKE
-
YUL
2 stops9h 04m
Air Canada
Deal found 25/1C$ 648

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 January 2026.

Round-trip from

C$ 426

One-way from

C$ 262

Popular in

August

Cheapest in

April

Average price

C$ 623
United Airlines
  • United Airlines
  • 26/2-2/3
  • 3 total stops
  • 13h 04m total
  • Ontario to Milwaukee
Search Deals
10/2
  • 10/2
  • 1 total stop
  • 23h 29m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 2026.
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

Thu 26/2

5:11 p.m.-9:44 p.m.

1 stop5h 33m

Milwaukee-Mitchell

Mon 2/3

5:00 a.m.-9:18 p.m.

1 stop15h 18m

C$ 426

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 7/3

1:10 p.m.-7:59 p.m.

1 stop7h 49m

Milwaukee-Mitchell

Sun 8/3

7:57 a.m.-4:03 p.m.

1 stop7h 06m

C$ 514

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 18/2

11:40 a.m.-5:54 p.m.

1 stop7h 14m

Milwaukee-Mitchell

Wed 25/2

6:00 a.m.-5:36 p.m.

1 stop10h 36m

C$ 518

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Mon 23/2

6:17 p.m.-7:49 a.m.

1 stop14h 32m

Milwaukee-Mitchell

Sat 28/2

5:00 a.m.-4:03 p.m.

1 stop10h 03m

C$ 518

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Thu 26/2

5:40 a.m.-4:08 p.m.

2 stops11h 28m

Milwaukee-Mitchell

Mon 2/3

1:21 p.m.-12:39 a.m.

2 stops10h 18m

C$ 573

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

12:52 p.m.-8:21 p.m.

1 stop8h 29m

Milwaukee-Mitchell

Sat 21/2

5:00 p.m.-11:10 p.m.

1 stop5h 10m

C$ 575

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

4:45 p.m.-8:55 p.m.

1 stop5h 10m

Milwaukee-Mitchell

Sat 21/2

9:44 a.m.-9:42 p.m.

2 stops10h 58m

C$ 575

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

6:00 a.m.-12:34 p.m.

1 stop7h 34m

Milwaukee-Mitchell

Sun 1/3

5:03 p.m.-11:10 p.m.

1 stop5h 07m

C$ 585

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 18/2

8:30 p.m.-9:43 a.m.

2 stops38h 13m

Milwaukee-Mitchell

Wed 25/2

4:39 p.m.-12:14 a.m.

1 stop30h 35m

C$ 595

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 26/2

4:45 p.m.-2:51 p.m.

1 stop23h 06m

Milwaukee-Mitchell

Mon 2/3

3:47 p.m.-3:35 p.m.

1 stop22h 48m

C$ 637

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 30 results
1
2
3

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, April is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 112). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 252). 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, American Airlines, and Delta can get you from Region of Ontario to Milwaukee in just under 5h 33m. Your travel time can differ by up to 2h 56m. 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, April is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 112). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 252). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pearson Intl to O'Hare Intl flights
Vancouver Intl to O'Hare Intl flights
Vancouver Intl to Minneapolis flights
Calgary to O'Hare Intl flights
Toronto Island to O'Hare Intl flights
Pearson Intl to Minneapolis flights
Pierre Elliott Trudeau Intl to Minneapolis flights
Ottawa to O'Hare Intl flights
Hamilton to O'Hare Intl flights
Edmonton to O'Hare Intl flights
Winnipeg to O'Hare Intl flights
Winnipeg to Minneapolis flights
Québec City to O'Hare Intl flights
Calgary to Minneapolis flights
Edmonton to Minneapolis flights
Victoria to Minneapolis flights
Toronto Island to Minneapolis flights
Halifax to O'Hare Intl flights
Pearson Intl to Milwaukee flights
Saskatoon to O'Hare Intl flights
Saskatoon to Minneapolis flights
Regina to Minneapolis flights
Vancouver Intl to Milwaukee flights
Pierre Elliott Trudeau Intl to Milwaukee flights
Calgary to Milwaukee flights
Pearson Intl to Madison flights
Halifax to Minneapolis flights
London to O'Hare Intl flights
Québec City to Minneapolis flights
Edmonton to Milwaukee flights
Victoria to O'Hare Intl flights
Regina to O'Hare Intl flights
Edmonton to Madison flights
St. John's to O'Hare Intl flights
Kelowna to O'Hare Intl flights
Pearson Intl to Duluth flights
Pearson Intl to Green Bay flights
Ottawa to Milwaukee flights
Fort McMurray to O'Hare Intl flights
Ottawa to Minneapolis flights
Pierre Elliott Trudeau Intl to Madison flights
Ottawa to Madison flights
Regina to Milwaukee flights
Nanaimo to O'Hare Intl flights
Moncton to O'Hare Intl flights
Comox to O'Hare Intl flights
Victoria to Milwaukee flights
Sudbury to O'Hare Intl flights
Halifax to Madison flights

Top 3 airlines flying from Ontario to Milwaukee

Discover the top 3 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 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 290AverageC$ 593FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 421AverageC$ 740FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 556AverageC$ 805FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.