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Cheap flights from Ontario to Milwaukee from C$ 279

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 21/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
4 Feb — 11 Feb1
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 5 January 2026.

Wed 18/25:25 p.m.YUL - MKE
2 stops15h 15mMultiple Airlines
Mon 23/28:11 p.m.MKE - YUL
1 stop27h 19mMultiple Airlines
Deal found 4/1C$ 468
Sun 1/210:15 p.m.YYZ - MKE
2 stops44h 43mMultiple Airlines
Sun 8/26:58 p.m.MKE - YYZ
1 stop18h 10mMultiple Airlines
Deal found 5/1C$ 469
Thu 19/23:45 p.m.YUL - MKE
1 stop8h 12mAmerican Airlines
Mon 23/25:00 a.m.MKE - YUL
1 stop9h 04mAmerican Airlines
Deal found 4/1C$ 490
Sun 1/211:35 a.m.YYZ - MKE
1 stop8h 32mAmerican Airlines
Sun 8/29:33 a.m.MKE - YYZ
1 stop10h 50mAmerican Airlines
Deal found 3/1C$ 490
Thu 15/16:00 a.m.YOW - MKE
2 stops10h 43mUnited Airlines
Mon 19/15:00 a.m.MKE - YOW
2 stops7h 32mUnited Airlines
Deal found 3/1C$ 490
Wed 18/28:20 p.m.YYZ - MKE
1 stop12h 20mMultiple Airlines
Mon 23/28:11 p.m.MKE - YYZ
1 stop16h 57mMultiple Airlines
Deal found 4/1C$ 491
Wed 18/25:25 p.m.YUL - MKE
2 stops15h 15mMultiple Airlines
Sun 22/26:37 p.m.MKE - YUL
1 stop28h 53mMultiple Airlines
Deal found 4/1C$ 515
Tue 27/111:30 a.m.YYZ - MKE
1 stop11h 35mAmerican Airlines
Sun 1/29:33 a.m.MKE - YYZ
1 stop7h 47mAmerican Airlines
Deal found 4/1C$ 524
Wed 18/28:20 p.m.YYZ - MKE
1 stop12h 20mMultiple Airlines
Tue 24/24:39 p.m.MKE - YYZ
1 stop30h 35mMultiple Airlines
Deal found 4/1C$ 540
Sat 31/17:15 a.m.YYZ - MKE
2 stops12h 38mMultiple Airlines
Fri 6/27:28 p.m.MKE - YYZ
1 stop17h 52mMultiple Airlines
Deal found 3/1C$ 545
Thu 19/28:20 p.m.YYZ - MKE
1 stop14h 23mMultiple Airlines
Thu 26/27:37 p.m.MKE - YYZ
2 stops26h 43mMultiple Airlines
Deal found 4/1C$ 555
Wed 18/26:00 a.m.YUL - MKE
1 stop7h 34mDelta
Tue 24/211:15 a.m.MKE - YUL
1 stop6h 20mDelta
Deal found 4/1C$ 556

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 5 January 2026.

Round-trip from

C$ 468

One-way from

C$ 279

Popular in

August

Cheapest in

April

Average price

C$ 628
18/2-23/2
  • 18/2-23/2
  • 3 total stops
  • 42h 34m total
  • Ontario to Milwaukee
Search Deals
American Airlines
  • American Airlines
  • 21/2
  • 1 total stop
  • 8h 12m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 37 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 5 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

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

5:25 p.m.-7:40 a.m.

2 stops15h 15m

Milwaukee-Mitchell

Mon 23/2

8:11 p.m.-12:30 a.m.

1 stop27h 19m

C$ 468

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Thu 15/1

5:11 p.m.-10:56 p.m.

1 stop6h 45m

Milwaukee-Mitchell

Mon 19/1

5:00 a.m.-5:12 p.m.

1 stop11h 12m

C$ 490

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 18/2

3:40 p.m.-7:40 a.m.

2 stops17h 00m

Milwaukee-Mitchell

Mon 23/2

8:11 p.m.-2:08 p.m.

1 stop16h 57m

C$ 490

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 19/2

8:20 p.m.-9:43 a.m.

1 stop14h 23m

Milwaukee-Mitchell

Mon 23/2

8:11 p.m.-2:08 p.m.

1 stop16h 57m

C$ 491

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

7:12 a.m.-5:54 p.m.

2 stops11h 42m

Milwaukee-Mitchell

Mon 23/2

5:00 a.m.-3:04 p.m.

1 stop9h 04m

C$ 496

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 1/2

11:35 a.m.-7:07 p.m.

1 stop8h 32m

Milwaukee-Mitchell

Sun 8/2

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

1 stop7h 31m

C$ 504

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 20/2

11:40 a.m.-7:59 p.m.

1 stop9h 19m

Milwaukee-Mitchell

Sat 21/2

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

1 stop10h 03m

C$ 504

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

5:25 p.m.-7:40 a.m.

2 stops15h 15m

Milwaukee-Mitchell

Sun 22/2

6:37 p.m.-12:30 a.m.

1 stop28h 53m

C$ 515

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 27/1

12:39 p.m.-10:05 p.m.

2 stops10h 26m

Milwaukee-Mitchell

Sun 1/2

6:10 a.m.-4:03 p.m.

1 stop8h 53m

C$ 538

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 31/1

7:15 a.m.-6:53 p.m.

2 stops12h 38m

Milwaukee-Mitchell

Fri 6/2

7:28 p.m.-2:20 p.m.

1 stop17h 52m

C$ 545

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 35 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.

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 7h 34m. Your travel time can differ by up to 4h 08m. 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 Ottawa - Milwaukee-Mitchell or Montreal Pierre Elliott Trudeau Intl - 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 5 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 292AverageC$ 584FlexibilityNo 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$ 517AverageC$ 744FlexibilityNo 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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