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Cheap flights from Ontario to Milwaukee from C$ 238

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Milwaukee

Keep the following information in mind while searching for Ontario to Milwaukee flight deals. Data was last updated 16 January 2026.

Round-trip from

C$ 511

One-way from

C$ 238

Popular in

August

Cheapest in

April

Average price

C$ 634
American Airlines
  • American Airlines
  • 6/2-8/2
  • 2 total stops
  • 19h 50m total
  • Ontario to Milwaukee
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United Airlines
  • United Airlines
  • 7/4
  • 1 total stop
  • 4h 28m total
  • Ontario to Milwaukee
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 127 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
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Find 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 16 January 2026.

Fri 6/26:00 a.m.
YYZ
-
MKE
1 stop10h 57m
American Airlines
Sun 8/26:10 a.m.
MKE
-
YYZ
1 stop8h 53m
American Airlines
Deal found 14/1C$ 511
Wed 25/27:10 a.m.
YYZ
-
MKE
1 stop9h 34m
Multiple Airlines
Thu 26/27:37 p.m.
MKE
-
YYZ
1 stop17h 43m
Multiple Airlines
Deal found 14/1C$ 516
Sat 7/21:14 p.m.
YYZ
-
MKE
1 stop9h 48m
American Airlines
Mon 9/27:32 a.m.
MKE
-
YYZ
1 stop7h 31m
American Airlines
Deal found 14/1C$ 523
Sat 28/211:40 a.m.
YYZ
-
MKE
1 stop9h 19m
American Airlines
Sat 7/38:00 a.m.
MKE
-
YYZ
1 stop7h 03m
American Airlines
Deal found 14/1C$ 529
Fri 30/13:50 p.m.
YUL
-
MKE
1 stop7h 12m
American Airlines
Thu 5/26:58 p.m.
MKE
-
YUL
1 stop19h 10m
American Airlines
Deal found 15/1C$ 546
Mon 23/31:10 p.m.
YYZ
-
MKE
1 stop8h 15m
American Airlines
Thu 26/35:00 a.m.
MKE
-
YYZ
1 stop15h 29m
American Airlines
Deal found 14/1C$ 548
Thu 29/13:00 p.m.
YUL
-
MKE
2 stops8h 56m
United Airlines
Mon 2/27:00 a.m.
MKE
-
YUL
1 stop6h 00m
United Airlines
Deal found 14/1C$ 556
Wed 18/24:45 p.m.
YUL
-
MKE
1 stop6h 43m
United Airlines
Sat 21/21:25 p.m.
MKE
-
YUL
1 stop6h 52m
United Airlines
Deal found 13/1C$ 557
Sat 7/23:50 p.m.
YUL
-
MKE
1 stop18h 13m
American Airlines
Mon 16/27:00 a.m.
MKE
-
YUL
1 stop14h 44m
American Airlines
Deal found 15/1C$ 571
Tue 3/27:00 a.m.
YUL
-
MKE
2 stops9h 43m
United Airlines
Wed 11/25:00 a.m.
MKE
-
YUL
2 stops9h 16m
United Airlines
Deal found 15/1C$ 577
Tue 17/28:30 p.m.
YYZ
-
MKE
2 stops20h 14m
Multiple Airlines
Tue 24/24:39 p.m.
MKE
-
YYZ
1 stop20h 41m
Multiple Airlines
Deal found 14/1C$ 582
Fri 6/27:15 a.m.
YYZ
-
MKE
2 stops12h 18m
Multiple Airlines
Sun 8/26:58 p.m.
MKE
-
YYZ
1 stop18h 22m
Multiple Airlines
Deal found 14/1C$ 586

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 16 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

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 25/2

7:10 a.m.-3:44 p.m.

1 stop9h 34m

Milwaukee-Mitchell

Thu 26/2

7:37 p.m.-2:20 p.m.

1 stop17h 43m

C$ 516

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 24/2

11:40 a.m.-10:57 p.m.

1 stop12h 17m

Milwaukee-Mitchell

Thu 26/2

8:00 a.m.-5:36 p.m.

1 stop8h 36m

C$ 523

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 21/2

1:10 p.m.-7:59 p.m.

1 stop7h 49m

Milwaukee-Mitchell

Sun 22/2

8:00 a.m.-4:03 p.m.

1 stop7h 03m

C$ 523

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 28/2

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

1 stop9h 19m

Milwaukee-Mitchell

Sat 7/3

8:00 a.m.-4:03 p.m.

1 stop7h 03m

C$ 529

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

7:00 a.m.-3:20 p.m.

1 stop9h 20m

Milwaukee-Mitchell

Thu 5/2

6:58 p.m.-3:08 p.m.

1 stop19h 10m

C$ 546

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 30/1

3:50 p.m.-10:02 p.m.

1 stop7h 12m

Milwaukee-Mitchell

Thu 5/2

6:58 p.m.-3:08 p.m.

1 stop19h 10m

C$ 546

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

9:29 a.m.-5:11 p.m.

1 stop8h 42m

Milwaukee-Mitchell

Sat 21/2

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

1 stop5h 10m

C$ 556

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

3:00 p.m.-10:56 p.m.

2 stops8h 56m

Milwaukee-Mitchell

Mon 2/2

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

1 stop6h 00m

C$ 556

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

4:45 p.m.-10:28 p.m.

1 stop6h 43m

Milwaukee-Mitchell

Sat 21/2

1:25 p.m.-9:17 p.m.

1 stop6h 52m

C$ 557

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

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

1 stop7h 45m

Milwaukee-Mitchell

Thu 16/4

6:55 a.m.-4:15 p.m.

1 stop8h 20m

C$ 577

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/1

Showing 1-10 of 40 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$ 114). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 246). 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?

    American Airlines, Delta, and United Airlines can get you from Region of Ontario to Milwaukee in just under 8h 42m. Your travel time can differ by up to 3h 35m. 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, April is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of C$ 114). Flying from Region of Ontario to Milwaukee in February is currently the most expensive (average of C$ 246). 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 294AverageC$ 590FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 352AverageC$ 727FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 410AverageC$ 745FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 522AverageC$ 766FlexibilityNo 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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