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Cheap flights from Ontario to Milwaukee from C$ 311

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
22 Jul — 29 Jul1
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 22 June 2026.

Wed 16/93:25 p.m.
YUL
-
MKE
1 stop9h 12m
United Airlines
Sat 19/910:30 a.m.
MKE
-
YUL
1 stop9h 56m
United Airlines
Deal found 21/6C$ 541
Wed 22/71:17 p.m.
YYZ
-
MKE
1 stop7h 29m
American Airlines
Sat 25/79:13 a.m.
MKE
-
YYZ
1 stop13h 16m
American Airlines
Deal found 20/6C$ 542
Sat 29/87:55 a.m.
YUL
-
MKE
1 stop5h 28m
American Airlines
Tue 1/96:20 a.m.
MKE
-
YUL
1 stop5h 07m
American Airlines
Deal found 20/6C$ 545
Wed 23/91:15 p.m.
YYZ
-
MKE
1 stop7h 48m
American Airlines
Sat 26/95:03 a.m.
MKE
-
YYZ
1 stop8h 29m
American Airlines
Deal found 17/6C$ 545
Sat 7/117:00 a.m.
YUL
-
MKE
1 stop12h 08m
United Airlines
Wed 11/116:10 a.m.
MKE
-
YUL
1 stop9h 11m
United Airlines
Deal found 17/6C$ 546
Sat 18/77:20 a.m.
YYZ
-
MKE
1 stop14h 41m
American Airlines
Sat 25/79:13 a.m.
MKE
-
YYZ
1 stop13h 16m
American Airlines
Deal found 19/6C$ 546
Thu 10/96:30 a.m.
YYZ
-
MKE
1 stop7h 18m
American Airlines
Sat 12/97:30 a.m.
MKE
-
YYZ
1 stop9h 14m
American Airlines
Deal found 19/6C$ 549
Wed 26/82:29 p.m.
YUL
-
MKE
1 stop9h 01m
Delta
Fri 28/81:27 p.m.
MKE
-
YUL
1 stop9h 03m
Delta
Deal found 21/6C$ 562
Sat 1/87:20 a.m.
YYZ
-
MKE
1 stop6h 54m
American Airlines
Tue 4/88:43 a.m.
MKE
-
YYZ
1 stop13h 46m
American Airlines
Deal found 19/6C$ 582
Thu 6/85:34 p.m.
YUL
-
MKE
1 stop15h 15m
American Airlines
Thu 13/86:20 a.m.
MKE
-
YUL
1 stop8h 09m
American Airlines
Deal found 22/6C$ 589
Fri 4/97:15 p.m.
YYZ
-
MKE
1 stop13h 34m
American Airlines
Sun 6/96:00 a.m.
MKE
-
YYZ
1 stop6h 26m
American Airlines
Deal found 21/6C$ 590
Wed 16/96:30 a.m.
YYZ
-
MKE
1 stop10h 33m
American Airlines
Sun 20/97:30 a.m.
MKE
-
YYZ
1 stop4h 05m
American Airlines
Deal found 19/6C$ 596

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 22 June 2026.

Round-trip from

C$ 541

One-way from

C$ 311
United Airlines
  • United Airlines
  • 16/9-19/9
  • 2 total stops
  • 19h 08m total
  • Ontario to Milwaukee
Search Deals
Delta
  • Delta
  • 17/10
  • 1 total stop
  • 7h 27m 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 22 June 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

Wed 16/9

3:25 p.m.-11:37 p.m.

1 stop9h 12m

Milwaukee-Mitchell

Sat 19/9

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

1 stop9h 56m

C$ 541

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

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

1 stop7h 27m

Milwaukee-Mitchell

Wed 11/11

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

1 stop5h 10m

C$ 541

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 23/9

1:15 p.m.-8:03 p.m.

1 stop7h 48m

Milwaukee-Mitchell

Sat 26/9

5:03 a.m.-2:32 p.m.

1 stop8h 29m

C$ 545

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

7:00 a.m.-6:08 p.m.

1 stop12h 08m

Milwaukee-Mitchell

Wed 11/11

6:10 a.m.-4:21 p.m.

1 stop9h 11m

C$ 546

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 26/8

2:29 p.m.-10:30 p.m.

1 stop9h 01m

Milwaukee-Mitchell

Fri 28/8

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

1 stop9h 03m

C$ 562

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 16/9

6:30 a.m.-4:03 p.m.

1 stop10h 33m

Milwaukee-Mitchell

Sun 20/9

7:30 a.m.-12:35 p.m.

1 stop4h 05m

C$ 596
Quickest round-trip

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 19/9

8:50 a.m.-2:33 p.m.

1 stop6h 43m

Milwaukee-Mitchell

Wed 23/9

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

1 stop4h 49m

C$ 600

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 4/8

9:00 p.m.-7:00 a.m.

1 stop11h 00m

Milwaukee-Mitchell

Sat 8/8

8:50 a.m.-4:56 p.m.

1 stop7h 06m

C$ 601

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 22/7

1:00 p.m.-6:48 p.m.

1 stop6h 48m

Milwaukee-Mitchell

Sat 25/7

1:30 p.m.-10:23 p.m.

2 stops7h 53m

C$ 601

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 15/7

11:00 a.m.-2:36 p.m.

1 stop4h 36m

Milwaukee-Mitchell

Sat 18/7

6:14 a.m.-10:23 p.m.

1 stop15h 09m

C$ 601

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/6

Showing 1-10 of 34 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, November is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 252). Flying from Region of Ontario to Milwaukee in July is currently the most expensive (average of C$ 831). 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, Delta, and American Airlines can get you from Region of Ontario to Milwaukee in just under 7h 27m. Your travel time can differ by up to 1h 45m. 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 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, November is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 252). Flying from Region of Ontario to Milwaukee in July is currently the most expensive (average of C$ 831). 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 22 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 324AverageC$ 1,580FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 786AverageC$ 990FlexibilityNo 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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