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Cheap flights from Ontario to Milwaukee from C$ 293

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
26 Aug — 2 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 27 July 2026.

Sat 29/86:10 a.m.
YUL
-
MKE
1 stop12h 15m
United Airlines
Tue 1/910:19 a.m.
MKE
-
YUL
1 stop6h 11m
United Airlines
Deal found 26/7C$ 503
Mon 7/911:39 a.m.
YYZ
-
MKE
1 stop9h 20m
American Airlines
Mon 14/98:31 a.m.
MKE
-
YYZ
1 stop13h 55m
American Airlines
Deal found 25/7C$ 547
Tue 22/96:30 a.m.
YYZ
-
MKE
1 stop7h 18m
American Airlines
Tue 29/91:18 p.m.
MKE
-
YYZ
1 stop9h 08m
American Airlines
Deal found 27/7C$ 549
Fri 13/1112:10 p.m.
YUL
-
MKE
1 stop7h 24m
American Airlines
Mon 16/117:17 a.m.
MKE
-
YUL
1 stop14h 36m
American Airlines
Deal found 24/7C$ 553
Tue 25/87:00 a.m.
YYZ
-
MKE
1 stop4h 00m
United Airlines
Tue 1/911:48 a.m.
MKE
-
YYZ
1 stop5h 08m
United Airlines
Deal found 26/7C$ 554
Tue 11/812:09 p.m.
YYZ
-
MKE
1 stop6h 59m
Delta
Sat 15/87:09 a.m.
MKE
-
YYZ
1 stop7h 11m
Delta
Deal found 24/7C$ 556
Tue 11/87:15 p.m.
YYZ
-
MKE
1 stop13h 34m
American Airlines
Tue 18/81:17 p.m.
MKE
-
YYZ
1 stop4h 13m
American Airlines
Deal found 24/7C$ 558
Tue 11/86:21 p.m.
YYZ
-
MKE
1 stop5h 38m
American Airlines
Wed 12/82:49 p.m.
MKE
-
YYZ
1 stop6h 46m
American Airlines
Deal found 23/7C$ 560
Wed 2/96:00 a.m.
YUL
-
MKE
2 stops11h 40m
United Airlines
Wed 9/95:00 a.m.
MKE
-
YUL
1 stop4h 40m
United Airlines
Deal found 24/7C$ 563
Sat 22/86:00 a.m.
YYZ
-
MKE
1 stop7h 23m
American Airlines
Sat 22/86:00 p.m.
MKE
-
YYZ
1 stop4h 46m
American Airlines
Deal found 23/7C$ 568
Tue 11/87:00 a.m.
YYZ
-
MKE
1 stop4h 00m
United Airlines
Fri 14/86:15 a.m.
MKE
-
YYZ
1 stop13h 29m
United Airlines
Deal found 25/7C$ 573
Tue 11/812:09 p.m.
YYZ
-
MKE
1 stop6h 59m
Delta
Fri 21/87:09 a.m.
MKE
-
YYZ
1 stop7h 11m
Delta
Deal found 24/7C$ 574

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 27 July 2026.

Round-trip from

C$ 503

One-way from

C$ 293
United Airlines
  • United Airlines
  • 12/1-13/1
  • 2 total stops
  • 19h 39m total
  • Ontario to Milwaukee
Search Deals
United Airlines
  • United Airlines
  • 29/8
  • 1 total stop
  • 9h 23m 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 27 July 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 - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

11:23 a.m.-6:22 p.m.

1 stop7h 59m

Milwaukee-Mitchell

Tue 8/9

6:05 a.m.-1:09 p.m.

1 stop6h 04m

C$ 503

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 12/1

6:00 a.m.-12:27 p.m.

1 stop7h 27m

Milwaukee-Mitchell

Wed 13/1

5:00 p.m.-11:10 p.m.

1 stop5h 10m

C$ 503

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

7:55 a.m.-12:23 p.m.

1 stop5h 28m

Milwaukee-Mitchell

Tue 1/9

6:20 a.m.-12:27 p.m.

1 stop5h 07m

C$ 503

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Tue 12/1

2:20 p.m.-10:39 p.m.

2 stops9h 19m

Milwaukee-Mitchell

Wed 13/1

6:10 a.m.-1:10 p.m.

1 stop6h 00m

C$ 503

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 13/11

12:10 p.m.-6:34 p.m.

1 stop7h 24m

Milwaukee-Mitchell

Mon 16/11

7:17 a.m.-10:53 p.m.

1 stop14h 36m

C$ 553

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 22/9

1:00 p.m.-5:30 p.m.

1 stop5h 30m

Milwaukee-Mitchell

Tue 29/9

8:30 a.m.-7:02 p.m.

2 stops9h 32m

C$ 554

MontrealMilwaukee

YUL - MKE

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$ 563
Quickest round-trip

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 22/8

7:00 a.m.-10:00 a.m.

1 stop4h 00m

Milwaukee-Mitchell

Thu 10/9

6:00 a.m.-11:49 a.m.

1 stop4h 49m

C$ 573

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Mon 10/8

6:10 a.m.-12:45 p.m.

1 stop7h 35m

Milwaukee-Mitchell

Tue 18/8

9:40 a.m.-3:20 p.m.

1 stop4h 40m

C$ 574

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 10/12

6:00 a.m.-12:36 p.m.

1 stop7h 36m

Milwaukee-Mitchell

Mon 14/12

9:35 a.m.-1:33 p.m.

1 stop2h 58m

C$ 591

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 41 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$ 409). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of C$ 969). 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$ 848 and C$ 1,108 in September.
The cheapest round-trip price found within the last 5 days was C$ 547 on American Airlines (7 Sep-14 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?

    United Airlines, Delta, and Air Canada can get you from Region of Ontario to Milwaukee in just under 4h 35m. Your travel time can differ by up to 3h 24m. 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, October is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 409). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of C$ 969). 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 27 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 323AverageC$ 880FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 714AverageC$ 878FlexibilityNo 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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