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Cheap flights from Ontario to Milwaukee from C$ 286

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
2 Sep — 9 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 3 August 2026.

Thu 3/97:20 a.m.
YYZ
-
MKE
1 stop13h 39m
American Airlines
Wed 9/98:14 p.m.
MKE
-
YYZ
1 stop15h 21m
American Airlines
Deal found 30/7C$ 545
Wed 28/105:15 p.m.
YYZ
-
MKE
1 stop26h 53m
Multiple Airlines
Sun 1/118:03 p.m.
MKE
-
YYZ
1 stop16h 37m
Multiple Airlines
Deal found 1/8C$ 556
Sat 29/86:00 a.m.
YUL
-
MKE
1 stop3h 45m
Delta
Tue 1/94:47 p.m.
MKE
-
YUL
1 stop5h 43m
Delta
Deal found 30/7C$ 570
Fri 11/126:24 p.m.
YYZ
-
MKE
1 stop14h 43m
American Airlines
Mon 14/127:19 p.m.
MKE
-
YYZ
1 stop14h 37m
American Airlines
Deal found 31/7C$ 571
Mon 24/85:25 p.m.
YYZ
-
MKE
1 stop7h 34m
American Airlines
Wed 26/88:20 a.m.
MKE
-
YYZ
1 stop9h 10m
American Airlines
Deal found 30/7C$ 574
Mon 14/96:30 a.m.
YYZ
-
MKE
1 stop14h 33m
American Airlines
Mon 21/97:30 a.m.
MKE
-
YYZ
1 stop14h 56m
American Airlines
Deal found 31/7C$ 577
Tue 15/96:30 a.m.
YYZ
-
MKE
1 stop12h 51m
American Airlines
Fri 18/98:14 p.m.
MKE
-
YYZ
1 stop15h 21m
American Airlines
Deal found 3/8C$ 578
Thu 27/86:10 a.m.
YUL
-
MKE
1 stop11h 00m
United Airlines
Sat 29/83:15 p.m.
MKE
-
YUL
1 stop5h 11m
United Airlines
Deal found 3/8C$ 594
Fri 30/1011:40 a.m.
YYZ
-
MKE
1 stop3h 44m
American Airlines
Mon 2/117:17 a.m.
MKE
-
YYZ
1 stop6h 53m
American Airlines
Deal found 29/7C$ 594
Thu 20/87:20 a.m.
YYZ
-
MKE
1 stop14h 40m
American Airlines
Tue 1/92:49 p.m.
MKE
-
YYZ
1 stop6h 46m
American Airlines
Deal found 30/7C$ 595
Thu 3/911:39 a.m.
YYZ
-
MKE
1 stop10h 21m
American Airlines
Tue 8/92:49 p.m.
MKE
-
YYZ
1 stop6h 46m
American Airlines
Deal found 3/8C$ 605
Tue 22/96:30 a.m.
YYZ
-
MKE
1 stop7h 18m
American Airlines
Fri 25/98:03 a.m.
MKE
-
YYZ
1 stop8h 41m
American Airlines
Deal found 30/7C$ 608

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 3 August 2026.

Round-trip from

C$ 500

One-way from

C$ 286
Delta
  • Delta
  • 29/8-1/9
  • 2 total stops
  • 9h 28m total
  • Ontario to Milwaukee
Search Deals
1/11
  • 1/11
  • 1 total stop
  • 24h 08m 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 3 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
Quickest round-trip

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$ 570

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

9:15 a.m.-5:25 p.m.

2 stops9h 10m

Milwaukee-Mitchell

Sat 5/9

1:19 p.m.-9:26 p.m.

1 stop7h 07m

C$ 573

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$ 573

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 26/8

6:51 p.m.-11:53 p.m.

1 stop6h 02m

Milwaukee-Mitchell

Sat 5/9

12:47 p.m.-11:52 p.m.

1 stop10h 05m

C$ 573

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

11:10 a.m.-9:40 p.m.

1 stop9h 30m

C$ 573

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 15/8

5:10 p.m.-8:18 p.m.

1 stop4h 08m

Milwaukee-Mitchell

Tue 18/8

1:27 p.m.-11:30 p.m.

1 stop9h 03m

C$ 573

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Fri 30/10

11:40 a.m.-2:24 p.m.

1 stop3h 44m

Milwaukee-Mitchell

Mon 2/11

7:17 a.m.-3:10 p.m.

1 stop6h 53m

C$ 594

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

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

1 stop11h 00m

Milwaukee-Mitchell

Sat 29/8

3:15 p.m.-9:26 p.m.

1 stop5h 11m

C$ 594

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:00 a.m.-12:45 p.m.

1 stop7h 45m

Milwaukee-Mitchell

Sat 12/9

4:57 p.m.-11:27 p.m.

1 stop5h 30m

C$ 594

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 13/9

6:30 a.m.-12:48 p.m.

1 stop7h 18m

Milwaukee-Mitchell

Sun 20/9

1:18 p.m.-11:26 p.m.

1 stop9h 08m

C$ 627

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Showing 1-10 of 39 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$ 407). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of C$ 964). 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$ 844 and C$ 1,103 in September.
The cheapest round-trip price found within the last 5 days was C$ 545 on American Airlines (3 Sep-9 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, United Airlines, and American Airlines can get you from Region of Ontario to Milwaukee in just under 3h 44m. Your travel time can differ by up to 5h 26m. 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, October is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 407). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of C$ 964). 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 3 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 321AverageC$ 876FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 710AverageC$ 874FlexibilityNo 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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