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Cheap flights from Ontario to Milwaukee from C$ 284

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
8 Jan — 15 Jan1
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 9 December 2025.

Wed 17/123:40 p.m.YYZ - MKE
2 stops28h 40mMultiple Airlines
Sun 11/17:40 p.m.MKE - YYZ
1 stop17h 40mMultiple Airlines
Deal found 7/12C$ 657
Thu 25/128:15 a.m.YYZ - MKE
1 stop11h 38mUnited Airlines
Tue 30/126:36 a.m.MKE - YYZ
1 stop9h 03mUnited Airlines
Deal found 7/12C$ 730
Sun 28/121:14 p.m.YYZ - MKE
1 stop7h 24mAmerican Airlines
Sun 18/18:30 a.m.MKE - YYZ
1 stop11h 53mAmerican Airlines
Deal found 7/12C$ 734
Fri 26/122:15 p.m.YYZ - MKE
1 stop22h 12mUnited Airlines
Wed 31/125:00 a.m.MKE - YYZ
1 stop10h 39mUnited Airlines
Deal found 8/12C$ 743
Sun 28/126:50 a.m.YYZ - MKE
1 stop11h 17mUnited Airlines
Sun 18/13:20 p.m.MKE - YYZ
2 stops7h 26mUnited Airlines
Deal found 7/12C$ 770
Tue 30/1211:38 a.m.YYZ - MKE
1 stop7h 11mAmerican Airlines
Sun 4/19:44 p.m.MKE - YYZ
1 stop12h 12mAmerican Airlines
Deal found 8/12C$ 781
Wed 17/123:40 p.m.YYZ - MKE
2 stops28h 40mMultiple Airlines
Fri 9/17:56 p.m.MKE - YYZ
1 stop14h 50mMultiple Airlines
Deal found 7/12C$ 795
Fri 19/127:10 a.m.YYZ - MKE
1 stop12h 16mMultiple Airlines
Sun 21/128:15 p.m.MKE - YYZ
1 stop17h 05mMultiple Airlines
Deal found 7/12C$ 842
Sat 20/123:25 p.m.YYZ - MKE
1 stop28h 55mMultiple Airlines
Fri 9/17:56 p.m.MKE - YYZ
1 stop14h 50mMultiple Airlines
Deal found 7/12C$ 863
Fri 26/129:25 a.m.YUL - MKE
1 stop11h 30mUnited Airlines
Tue 30/127:08 a.m.MKE - YUL
1 stop10h 32mUnited Airlines
Deal found 8/12C$ 904
Fri 26/129:25 a.m.YUL - MKE
1 stop11h 30mAir Canada
Tue 30/126:36 a.m.MKE - YUL
1 stop11h 04mAir Canada
Deal found 8/12C$ 924
Fri 26/127:08 a.m.YUL - MKE
1 stop17h 50mAmerican Airlines
Tue 30/127:45 a.m.MKE - YUL
1 stop6h 25mAmerican Airlines
Deal found 8/12C$ 969

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 9 December 2025.

Round-trip from

C$ 420

One-way from

C$ 284

Popular in

August

Cheapest in

February

Average price

C$ 711
United Airlines
  • United Airlines
  • 8/1-12/1
  • 4 total stops
  • 16h 18m total
  • Ontario to Milwaukee
Search Deals
22/1
  • 22/1
  • 2 total stops
  • 27h 43m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 9 December 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

Thu 8/1

3:10 p.m.-10:56 p.m.

2 stops8h 46m

Milwaukee-Mitchell

Mon 12/1

2:32 p.m.-9:18 p.m.

1 stop5h 46m

C$ 420

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 22/1

7:15 a.m.-9:58 a.m.

2 stops27h 43m

Milwaukee-Mitchell

Thu 29/1

7:13 p.m.-2:20 p.m.

1 stop18h 07m

C$ 495

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 21/1

7:15 a.m.-6:01 p.m.

1 stop11h 46m

Milwaukee-Mitchell

Wed 28/1

6:56 p.m.-2:20 p.m.

1 stop18h 24m

C$ 506

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 4/1

8:20 p.m.-7:20 p.m.

1 stop24h 00m

Milwaukee-Mitchell

Sun 11/1

7:40 p.m.-2:20 p.m.

1 stop17h 40m

C$ 553

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

9:34 a.m.-5:05 p.m.

1 stop8h 31m

Milwaukee-Mitchell

Fri 30/1

6:40 a.m.-12:12 p.m.

1 stop4h 32m

C$ 610

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

2:13 p.m.-8:48 p.m.

2 stops7h 35m

Milwaukee-Mitchell

Fri 30/1

2:32 p.m.-9:17 p.m.

1 stop5h 45m

C$ 610

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 22/1

4:45 p.m.-2:57 p.m.

1 stop23h 12m

Milwaukee-Mitchell

Thu 29/1

3:53 p.m.-3:35 p.m.

1 stop22h 42m

C$ 656

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

7:00 a.m.-3:43 p.m.

2 stops9h 43m

Milwaukee-Mitchell

Fri 30/1

10:30 a.m.-7:48 p.m.

2 stops8h 18m

C$ 683

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 9/1

9:00 a.m.-3:43 p.m.

1 stop7h 43m

Milwaukee-Mitchell

Mon 12/1

2:32 p.m.-11:59 p.m.

1 stop8h 27m

C$ 689

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 22/1

7:20 a.m.-6:53 p.m.

2 stops12h 33m

Milwaukee-Mitchell

Thu 29/1

5:00 a.m.-2:01 p.m.

1 stop8h 01m

C$ 689

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 29 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, April is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 113). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 254). 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 9 December 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 in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 56% 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?

    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, Delta, and Air Canada can get you from Region of Ontario to Milwaukee in just under 8h 31m. Your travel time can differ by up to 1h 12m. Region of Ontario and Milwaukee are separated by a distance of 1159 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$ 113). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 254). 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 4 airlines flying from Ontario to Milwaukee

Discover the top 4 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 9 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 293AverageC$ 542FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 350AverageC$ 741FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 408AverageC$ 741FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 516AverageC$ 712FlexibilityNo 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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