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Cheap flights from Ontario to Milwaukee from C$ 339

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 16 November 2025.

Tue 30/127:15 a.m.YYZ - MKE
1 stop12h 11mMultiple Airlines
Tue 6/18:15 p.m.MKE - YYZ
1 stop17h 01mMultiple Airlines
Deal found 14/11C$ 468
Fri 5/127:15 a.m.YYZ - MKE
1 stop10h 54mMultiple Airlines
Fri 12/1210:34 a.m.MKE - YYZ
1 stop24h 09mMultiple Airlines
Deal found 14/11C$ 526
Sat 13/128:20 p.m.YYZ - MKE
1 stop14h 19mMultiple Airlines
Sat 20/127:48 p.m.MKE - YYZ
1 stop14h 55mMultiple Airlines
Deal found 15/11C$ 551
Tue 16/127:35 a.m.YYZ - MKE
2 stops36h 34mMultiple Airlines
Tue 23/128:15 p.m.MKE - YYZ
1 stop17h 05mMultiple Airlines
Deal found 16/11C$ 609
Thu 25/124:45 p.m.YUL - MKE
1 stop6h 28mUnited Airlines
Wed 31/126:36 a.m.MKE - YUL
1 stop6h 24mUnited Airlines
Deal found 13/11C$ 610
Tue 16/126:00 a.m.YYZ - MKE
1 stop12h 59mAmerican Airlines
Tue 23/128:02 p.m.MKE - YYZ
1 stop15h 30mAmerican Airlines
Deal found 16/11C$ 614
Sun 28/128:00 p.m.YYZ - MKE
1 stop17h 40mMultiple Airlines
Tue 30/128:15 p.m.MKE - YYZ
1 stop17h 05mMultiple Airlines
Deal found 14/11C$ 637
Mon 22/1212:05 p.m.YYZ - MKE
1 stop10h 06mUnited Airlines
Tue 13/18:33 a.m.MKE - YYZ
1 stop7h 06mUnited Airlines
Deal found 14/11C$ 655
Fri 26/126:00 a.m.YUL - MKE
1 stop14h 55mUnited Airlines
Tue 30/125:00 a.m.MKE - YUL
1 stop15h 17mUnited Airlines
Deal found 13/11C$ 693
Sat 27/127:08 a.m.YUL - MKE
1 stop17h 51mAmerican Airlines
Tue 30/128:08 p.m.MKE - YUL
1 stop18h 02mAmerican Airlines
Deal found 13/11C$ 698
Sun 28/127:08 a.m.YUL - MKE
1 stop17h 50mAmerican Airlines
Tue 30/128:08 p.m.MKE - YUL
1 stop18h 02mAmerican Airlines
Deal found 13/11C$ 711
Thu 25/127:08 a.m.YUL - MKE
1 stop11h 38mAmerican Airlines
Thu 1/18:08 p.m.MKE - YUL
1 stop18h 02mAmerican Airlines
Deal found 13/11C$ 712

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 16 November 2025.

Round-trip from

C$ 339

Popular in

August

Cheapest in

January

Average price

C$ 818
16/1-18/1
  • 16/1-18/1
  • 2 total stops
  • 30h 15m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 16 November 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

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 16/1

7:15 a.m.-6:52 p.m.

1 stop12h 37m

Milwaukee-Mitchell

Sun 18/1

7:42 p.m.-2:20 p.m.

1 stop17h 38m

C$ 339

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Tue 14/4

6:52 a.m.-12:32 p.m.

1 stop6h 40m

Milwaukee-Mitchell

Sat 18/4

5:10 a.m.-1:45 p.m.

1 stop7h 35m

C$ 421

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 22/1

8:20 p.m.-9:58 a.m.

2 stops14h 38m

Milwaukee-Mitchell

Thu 29/1

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

1 stop18h 07m

C$ 446

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 30/12

7:15 a.m.-6:26 p.m.

1 stop12h 11m

Milwaukee-Mitchell

Tue 6/1

8:15 p.m.-2:16 p.m.

1 stop17h 01m

C$ 468

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

3:52 p.m.-11:00 a.m.

1 stop20h 08m

Milwaukee-Mitchell

Sun 18/1

6:58 p.m.-3:08 p.m.

1 stop19h 10m

C$ 492

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Tue 14/4

5:45 a.m.-12:32 p.m.

2 stops7h 47m

Milwaukee-Mitchell

Sat 18/4

9:40 a.m.-7:16 p.m.

2 stops8h 36m

C$ 495

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 5/12

7:15 a.m.-5:09 p.m.

1 stop10h 54m

Milwaukee-Mitchell

Fri 12/12

10:34 a.m.-11:43 a.m.

1 stop24h 09m

C$ 526

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 13/12

8:20 p.m.-9:39 a.m.

1 stop14h 19m

Milwaukee-Mitchell

Sat 20/12

7:48 p.m.-11:43 a.m.

1 stop14h 55m

C$ 551

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 19/2

7:15 a.m.-6:45 p.m.

1 stop12h 30m

Milwaukee-Mitchell

Sun 22/2

7:51 p.m.-12:14 a.m.

2 stops27h 23m

C$ 554

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 14/3

9:25 a.m.-10:43 p.m.

1 stop14h 18m

Milwaukee-Mitchell

Mon 16/3

9:44 a.m.-6:40 p.m.

1 stop7h 56m

C$ 607

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/11

Showing 1-10 of 21 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 C$ 116). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 266). 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 16 November 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 and American Airlines can get you from Region of Ontario to Milwaukee in just under 6h 40m. Your travel time can differ by up to 13h 28m. 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$ 116). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 266). 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 16 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 297AverageC$ 560FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 398AverageC$ 751FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 407AverageC$ 431FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 498AverageC$ 711FlexibilityNo 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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