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Cheap flights from Ontario to Milwaukee from C$ 268

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
12 Jan — 19 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 13 December 2025.

Sun 14/128:20 p.m.YYZ - MKE
1 stop14h 19mMultiple Airlines
Thu 18/128:15 p.m.MKE - YYZ
1 stop14h 28mMultiple Airlines
Deal found 12/12C$ 738
Sat 13/127:10 a.m.YYZ - MKE
1 stop27h 29mMultiple Airlines
Mon 15/1210:34 a.m.MKE - YYZ
1 stop26h 46mMultiple Airlines
Deal found 12/12C$ 794
Fri 19/127:10 a.m.YYZ - MKE
1 stop12h 16mMultiple Airlines
Sun 21/128:06 p.m.MKE - YYZ
1 stop17h 14mMultiple Airlines
Deal found 11/12C$ 849
Fri 26/125:30 p.m.YYZ - MKE
1 stop4h 41mUnited Airlines
Thu 1/13:48 p.m.MKE - YYZ
2 stops6h 58mUnited Airlines
Deal found 12/12C$ 851
Fri 26/128:50 a.m.YUL - MKE
2 stops14h 23mAir Canada
Tue 30/125:00 a.m.MKE - YUL
1 stop12h 40mAir Canada
Deal found 11/12C$ 872
Sat 20/127:10 a.m.YYZ - MKE
1 stop12h 53mMultiple Airlines
Sun 21/128:15 p.m.MKE - YYZ
1 stop17h 05mMultiple Airlines
Deal found 10/12C$ 876
Sat 13/127:10 a.m.YYZ - MKE
1 stop27h 29mMultiple Airlines
Thu 18/128:15 p.m.MKE - YYZ
1 stop17h 05mMultiple Airlines
Deal found 12/12C$ 877
Sun 14/127:10 a.m.YYZ - MKE
1 stop10h 59mMultiple Airlines
Mon 15/1210:34 a.m.MKE - YYZ
1 stop26h 46mMultiple Airlines
Deal found 12/12C$ 881
Fri 26/122:26 p.m.YUL - MKE
1 stop10h 32mAmerican Airlines
Tue 30/128:08 p.m.MKE - YUL
1 stop18h 02mAmerican Airlines
Deal found 11/12C$ 922
Sat 13/127:10 a.m.YYZ - MKE
1 stop27h 29mMultiple Airlines
Sun 14/126:09 p.m.MKE - YYZ
1 stop18h 56mMultiple Airlines
Deal found 12/12C$ 950
Fri 19/125:30 p.m.YYZ - MKE
1 stop4h 41mUnited Airlines
Sun 21/123:48 p.m.MKE - YYZ
2 stops6h 58mUnited Airlines
Deal found 11/12C$ 973
Sat 20/129:25 a.m.YUL - MKE
1 stop10h 28mAir Canada
Sun 4/16:36 a.m.MKE - YUL
1 stop8h 21mAir Canada
Deal found 11/12C$ 1,068

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 13 December 2025.

Round-trip from

C$ 417

One-way from

C$ 268

Popular in

August

Cheapest in

February

Average price

C$ 708
United Airlines
  • United Airlines
  • 8/1-12/1
  • 3 total stops
  • 14h 16m total
  • Ontario to Milwaukee
Search Deals
26/1
  • 26/1
  • 1 total stop
  • 11h 56m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 144 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 13 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

6:00 a.m.-10:46 a.m.

1 stop5h 46m

Milwaukee-Mitchell

Mon 12/1

7:00 a.m.-4:30 p.m.

2 stops8h 30m

C$ 417

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 22/2

4:43 p.m.-10:59 p.m.

1 stop7h 16m

Milwaukee-Mitchell

Wed 25/2

8:36 a.m.-9:22 p.m.

1 stop11h 46m

C$ 472

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 20/1

7:15 a.m.-5:58 p.m.

2 stops11h 43m

Milwaukee-Mitchell

Thu 22/1

7:13 p.m.-2:16 p.m.

1 stop18h 03m

C$ 512

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 20/1

11:30 a.m.-10:05 p.m.

1 stop11h 35m

Milwaukee-Mitchell

Thu 22/1

7:32 a.m.-4:03 p.m.

1 stop7h 31m

C$ 542

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 11/1

8:00 p.m.-6:45 p.m.

1 stop23h 45m

Milwaukee-Mitchell

Fri 16/1

7:47 p.m.-8:11 p.m.

2 stops23h 24m

C$ 576

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 8/1

6:00 a.m.-3:57 p.m.

1 stop10h 57m

Milwaukee-Mitchell

Thu 15/1

7:32 a.m.-9:23 p.m.

1 stop12h 51m

C$ 598

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

6:00 a.m.-12:29 p.m.

1 stop7h 29m

Milwaukee-Mitchell

Fri 30/1

1:18 p.m.-11:12 p.m.

1 stop8h 54m

C$ 606

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

7:00 a.m.-6:53 p.m.

2 stops12h 53m

Milwaukee-Mitchell

Fri 16/1

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

1 stop5h 45m

C$ 606

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

9:15 a.m.-6:53 p.m.

2 stops10h 38m

Milwaukee-Mitchell

Fri 30/1

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

1 stop7h 00m

C$ 606

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

7:00 a.m.-3:20 p.m.

1 stop9h 20m

Milwaukee-Mitchell

Fri 16/1

4:05 p.m.-10:44 p.m.

1 stop5h 39m

C$ 618

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 28 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$ 253). 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 13 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.

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 7h 16m. Your travel time can differ by up to 1h 37m. Region of Ontario and Milwaukee are separated by a distance of 674 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$ 253). 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 13 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 292AverageC$ 540FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 349AverageC$ 738FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 406AverageC$ 738FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 513AverageC$ 709FlexibilityNo 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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