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Cheap flights from Ontario to Milwaukee from C$ 330

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
6 Dec — 13 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 6 November 2025.

Fri 12/127:15 a.m.YYZ - MKE
1 stop10h 54mMultiple Airlines
Sun 14/1210:34 a.m.MKE - YYZ
1 stop24h 09mMultiple Airlines
Deal found 4/11C$ 401
Fri 28/1111:32 a.m.YYZ - MKE
1 stop7h 11mAmerican Airlines
Mon 1/126:59 p.m.MKE - YYZ
1 stop14h 54mAmerican Airlines
Deal found 5/11C$ 488
Tue 18/116:00 a.m.YYZ - MKE
1 stop14h 14mAmerican Airlines
Tue 2/1212:05 p.m.MKE - YYZ
1 stop8h 24mAmerican Airlines
Deal found 3/11C$ 531
Mon 24/114:44 p.m.YYZ - MKE
1 stop7h 22mAmerican Airlines
Sat 29/118:13 a.m.MKE - YYZ
1 stop8h 27mAmerican Airlines
Deal found 5/11C$ 538
Sun 14/124:35 p.m.YUL - MKE
1 stop18h 04mMultiple Airlines
Sat 10/17:40 p.m.MKE - YUL
1 stop27h 50mMultiple Airlines
Deal found 5/11C$ 549
Fri 5/128:30 p.m.YYZ - MKE
3 stops38h 09mMultiple Airlines
Mon 8/1210:34 a.m.MKE - YYZ
1 stop8h 26mMultiple Airlines
Deal found 4/11C$ 559
Fri 21/114:45 p.m.YUL - MKE
1 stop6h 14mUnited Airlines
Sun 23/116:05 a.m.MKE - YUL
2 stops8h 11mUnited Airlines
Deal found 4/11C$ 614
Thu 27/111:14 p.m.YYZ - MKE
1 stop23h 18mAmerican Airlines
Sun 30/119:36 p.m.MKE - YYZ
1 stop12h 16mAmerican Airlines
Deal found 5/11C$ 625
Thu 27/111:14 p.m.YYZ - MKE
1 stop26h 43mAmerican Airlines
Wed 3/124:23 p.m.MKE - YYZ
1 stop22h 40mAmerican Airlines
Deal found 4/11C$ 635
Sun 14/129:15 a.m.YUL - MKE
2 stops8h 42mUnited Airlines
Sat 10/15:00 a.m.MKE - YUL
2 stops9h 16mUnited Airlines
Deal found 5/11C$ 648
Wed 3/125:15 p.m.YYZ - MKE
1 stop17h 24mMultiple Airlines
Wed 10/123:51 p.m.MKE - YYZ
2 stops27h 41mMultiple Airlines
Deal found 5/11C$ 651
Thu 27/119:00 p.m.YYZ - MKE
2 stops19h 07mUnited Airlines
Sun 30/1112:05 p.m.MKE - YYZ
1 stop9h 49mUnited Airlines
Deal found 5/11C$ 689

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 6 November 2025.

Round-trip from

C$ 401

One-way from

C$ 328

Popular in

August

Cheapest in

February

Average price

C$ 597
12/12-14/12
  • 12/12-14/12
  • 2 total stops
  • 35h 03m total
  • Ontario to Milwaukee
Search Deals
18/12
  • 18/12
  • 1 total stop
  • 27h 45m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 204 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 43 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 6 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

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Tue 14/4

6:00 a.m.-1:43 p.m.

2 stops8h 43m

Milwaukee-Mitchell

Sat 18/4

10:45 a.m.-9:56 p.m.

2 stops10h 11m

C$ 421

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 28/11

11:32 a.m.-5:43 p.m.

1 stop7h 11m

Milwaukee-Mitchell

Mon 1/12

6:59 p.m.-10:53 a.m.

1 stop14h 54m

C$ 488

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 3/12

6:00 a.m.-3:53 p.m.

1 stop10h 53m

Milwaukee-Mitchell

Wed 10/12

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

1 stop10h 03m

C$ 488

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 27/2

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

1 stop7h 16m

Milwaukee-Mitchell

Tue 3/3

12:13 p.m.-9:24 p.m.

1 stop8h 11m

C$ 490

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 5/12

4:44 p.m.-11:05 p.m.

1 stop7h 21m

Milwaukee-Mitchell

Mon 8/12

6:28 p.m.-10:56 a.m.

1 stop15h 28m

C$ 490

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

7:00 a.m.-6:30 p.m.

2 stops12h 30m

Milwaukee-Mitchell

Thu 22/1

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

1 stop19h 10m

C$ 497

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 12/12

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

1 stop10h 54m

Milwaukee-Mitchell

Sun 14/12

6:09 p.m.-2:53 p.m.

2 stops19h 44m

C$ 511

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 18/11

6:00 a.m.-7:14 p.m.

1 stop14h 14m

Milwaukee-Mitchell

Tue 2/12

12:05 p.m.-9:29 p.m.

1 stop8h 24m

C$ 531

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Mon 24/11

4:44 p.m.-11:06 p.m.

1 stop7h 22m

Milwaukee-Mitchell

Sat 29/11

8:13 a.m.-5:40 p.m.

1 stop8h 27m

C$ 538

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sun 14/12

4:35 p.m.-9:39 a.m.

1 stop18h 04m

Milwaukee-Mitchell

Sat 10/1

7:40 p.m.-12:30 a.m.

1 stop27h 50m

C$ 549

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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, June is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 117). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 268). 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 6 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 7h 11m. Your travel time can differ by up to 1h 32m. 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 cheapest airlines to fly from Region of Ontario to Milwaukee one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 366. American Airlines flights start at C$ 411 while deals on United Airlines start at C$ 426 one-way.

  • 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$ 117). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 268). 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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 299AverageC$ 563FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 401AverageC$ 756FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 409AverageC$ 434FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 501AverageC$ 716FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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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