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Cheap flights from Ontario to Milwaukee from C$ 285

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
7 Sep — 14 Sep1
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 8 August 2026.

Sat 29/86:00 a.m. -
1 stop3h 45m
Tue 1/94:47 p.m. -
1 stop5h 43m
Deal found 6/8C$ 489
Wed 28/1012:44 p.m. -
1 stop5h 56m
Sat 31/107:00 a.m. -
1 stop5h 39m
Deal found 6/8C$ 491
Wed 9/97:00 a.m. -
1 stop5h 40m
Thu 10/912:45 p.m. -
1 stop10h 05m
Deal found 7/8C$ 495
Sat 5/99:45 a.m. -
1 stop7h 17m
Tue 8/96:47 p.m. -
1 stop3h 12m
Deal found 7/8C$ 538
Tue 25/87:00 a.m. -
1 stop5h 45m
Sat 29/84:47 p.m. -
1 stop5h 43m
Deal found 4/8C$ 569
Wed 28/107:00 a.m. -
2 stops8h 58m
Sat 31/108:00 a.m. -
1 stop5h 00m
Deal found 7/8C$ 572
Fri 21/812:09 p.m. -
1 stop6h 59m
Sun 23/87:09 a.m. -
1 stop5h 25m
Deal found 7/8C$ 572
Thu 27/87:20 a.m. -
1 stop11h 58m
Wed 16/91:18 p.m. -
1 stop9h 08m
Deal found 3/8C$ 573
Tue 15/96:30 a.m. -
1 stop12h 51m
Fri 18/98:14 p.m. -
1 stop15h 21m
Deal found 3/8C$ 576
Wed 19/89:30 a.m. -
1 stop8h 44m
Sat 22/87:09 a.m. -
1 stop8h 11m
Deal found 7/8C$ 586
Thu 20/89:45 a.m. -
1 stop5h 48m
Sat 22/87:18 a.m. -
2 stops11h 27m
Deal found 6/8C$ 590
Thu 27/82:20 p.m. -
2 stops9h 16m
Sat 29/88:30 a.m. -
2 stops10h 15m
Deal found 3/8C$ 591

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 8 August 2026.

Round-trip from

C$ 489

One-way from

C$ 285
Delta
  • Delta
  • 29/8-1/9
  • 2 total stops
  • 9h 28m total
  • Ontario to Milwaukee
Search Deals
Delta
  • Delta
  • 29/9
  • 1 total stop
  • 7h 50m total
  • Ontario to Milwaukee
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 8 August 2026.
Use the filters below to find and compare flights from Ontario to Milwaukee that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealMilwaukee

YUL Montreal Pierre Elliott Trudeau Intl - MKE Milwaukee-Mitchell

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

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

1 stop3h 45m

Milwaukee-Mitchell

Tue 1/9

4:47 p.m.-11:30 p.m.

1 stop5h 43m

C$ 489

MontrealMilwaukee

YUL Montreal Pierre Elliott Trudeau Intl - MKE Milwaukee-Mitchell

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 9/9

7:00 a.m.-11:40 a.m.

1 stop5h 40m

Milwaukee-Mitchell

Thu 10/9

12:45 p.m.-11:50 p.m.

1 stop10h 05m

C$ 495

TorontoMilwaukee

YYZ Toronto Pearson Intl - MKE Milwaukee-Mitchell

YYZMKE

Toronto Pearson Intl

Sat 5/9

9:45 a.m.-4:02 p.m.

1 stop7h 17m

Milwaukee-Mitchell

Tue 8/9

6:47 p.m.-10:59 p.m.

1 stop3h 12m

C$ 538

MontrealMilwaukee

YUL Montreal Pierre Elliott Trudeau Intl - MKE Milwaukee-Mitchell

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

9:15 a.m.-5:30 p.m.

2 stops9h 15m

Milwaukee-Mitchell

Sat 19/9

10:30 a.m.-9:26 p.m.

1 stop9h 56m

C$ 569

MontrealMilwaukee

YUL Montreal Pierre Elliott Trudeau Intl - MKE Milwaukee-Mitchell

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

9:45 a.m.-4:10 p.m.

1 stop7h 25m

Milwaukee-Mitchell

Sat 29/8

7:18 a.m.-7:45 p.m.

2 stops11h 27m

C$ 569

MontrealMilwaukee

YUL Montreal Pierre Elliott Trudeau Intl - MKE Milwaukee-Mitchell

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 28/10

7:00 a.m.-2:58 p.m.

2 stops8h 58m

Milwaukee-Mitchell

Sat 31/10

8:00 a.m.-2:00 p.m.

1 stop5h 00m

C$ 569

MontrealMilwaukee

YUL Montreal Pierre Elliott Trudeau Intl - MKE Milwaukee-Mitchell

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

6:00 a.m.-2:33 p.m.

2 stops9h 33m

Milwaukee-Mitchell

Sat 26/9

10:42 a.m.-7:45 p.m.

2 stops8h 03m

C$ 569

TorontoMilwaukee

YYZ Toronto Pearson Intl - MKE Milwaukee-Mitchell

YYZMKE

Toronto Pearson Intl

Fri 21/8

12:09 p.m.-6:08 p.m.

1 stop6h 59m

Milwaukee-Mitchell

Sun 23/8

7:09 a.m.-1:34 p.m.

1 stop5h 25m

C$ 572
Quickest round-trip

TorontoMilwaukee

YYZ Toronto Pearson Intl - MKE Milwaukee-Mitchell

YYZMKE

Toronto Pearson Intl

Wed 30/9

11:00 a.m.-1:43 p.m.

1 stop3h 43m

Milwaukee-Mitchell

Sat 3/10

3:51 p.m.-8:44 p.m.

1 stop3h 53m

C$ 628

TorontoMilwaukee

YYZ Toronto Pearson Intl - MKE Milwaukee-Mitchell

YYZMKE

Toronto Pearson Intl

Tue 15/9

5:15 p.m.-9:00 p.m.

1 stop4h 45m

Milwaukee-Mitchell

Sat 19/9

3:52 p.m.-8:44 p.m.

1 stop3h 52m

C$ 628

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 42 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 405). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of C$ 960). 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?

Airfare is below average for this route at the moment.
Region of Ontario to Milwaukee flights typically cost between C$ 840 and C$ 1,099 in September.
The cheapest round-trip price found within the last 5 days was C$ 538 on Delta (5 Sep-8 Sep).

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?

    Delta and United Airlines can get you from Region of Ontario to Milwaukee in just under 3h 45m. Your travel time can differ by up to 5h 48m. 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 Montreal Pierre Elliott Trudeau Intl - Milwaukee-Mitchell. You may also consider Toronto Pearson 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, October is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 405). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of C$ 960). 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 2 airlines flying from Ontario to Milwaukee

Discover the top 2 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 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 320AverageC$ 872FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 708AverageC$ 870FlexibilityNo 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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