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$154+ Cheap flights from Ontario to Milwaukee (MKE)

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MKE
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Round-trip from

$318
(American Airlines)

One-way from

$154
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$472
From Ontario to Milwaukee-Mitchell
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One-way flight from Ontario to Milwaukee-Mitchell
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Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to Milwaukee

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 March 31, 2025.

This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/186:20 pmYYZ - MKE
1 stop5h 40mAmerican Airlines
Mon 4/216:37 pmMKE - YYZ
1 stop15h 13mAmerican Airlines
Deal found 3/31$318
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/276:30 amYYZ - MKE
1 stop5h 53mDelta
Sun 5/46:20 amMKE - YYZ
1 stop4h 39mDelta
Deal found 3/30$319
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/206:15 amYUL - MKE
1 stop5h 07mAir Canada
Mon 6/305:15 amMKE - YUL
1 stop4h 25mAir Canada
Deal found 3/30$324
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/206:15 amYUL - MKE
1 stop5h 07mUnited Airlines
Mon 6/305:15 amMKE - YUL
2 stops12h 10mUnited Airlines
Deal found 3/31$325
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1212:20 pmYYZ - MKE
1 stop3h 48mUnited Airlines
Tue 4/156:45 amMKE - YYZ
2 stops9h 24mUnited Airlines
Deal found 3/30$328
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1412:30 pmYUL - MKE
1 stop6h 06mAmerican Airlines
Sun 5/187:07 amMKE - YUL
1 stop14h 37mAmerican Airlines
Deal found 3/30$334
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/312:55 pmYYZ - MKE
1 stop19h 44mMultiple Airlines
Thu 4/31:24 pmMKE - YYZ
2 stops32h 11mMultiple Airlines
Deal found 3/29$349
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/95:00 pmYUL - MKE
1 stop19h 27mWestJet
Sun 5/116:34 pmMKE - YUL
1 stop3h 42mWestJet
Deal found 3/30$367
This Mytrip deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/154:25 pmYOW - MKE
1 stop20h 02mMultiple Airlines
Thu 5/2212:22 pmMKE - YOW
1 stop27h 44mMultiple Airlines
Deal found 3/31$449
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amYYZ - MKE
1 stop3h 36mWestJet
Sun 9/76:30 pmMKE - YYZ
1 stop3h 25mWestJet
Deal found 3/30$451
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:55 amYOW - MKE
2 stops27h 41mWestJet
Tue 6/179:31 amMKE - YOW
2 stops37h 51mWestJet
Deal found 3/30$522
This Air Canada deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/19:00 amYYZ - MKE
1 stop3h 57mAir Canada
Wed 4/211:25 amMKE - YYZ
2 stops7h 52mAir Canada
Deal found 3/29$529

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 2,558,603 searches. Data last updated March 31, 2025.
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

Fri 4/18

6:20 pm-11:00 pm

1 stop5h 40m

Milwaukee-Mitchell

Mon 4/21

6:37 pm-10:50 am

1 stop15h 13m

$318

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sun 4/27

6:30 am-11:23 am

1 stop5h 53m

Milwaukee-Mitchell

Sun 5/4

6:20 am-11:59 am

1 stop4h 39m

$319

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 6/20

6:15 am-10:22 am

1 stop5h 07m

Milwaukee-Mitchell

Mon 6/30

5:15 am-10:40 am

1 stop4h 25m

$324

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 6/20

6:15 am-10:22 am

1 stop5h 07m

Milwaukee-Mitchell

Mon 6/30

5:15 am-6:25 pm

2 stops12h 10m

$325

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 4/12

12:20 pm-3:08 pm

1 stop3h 48m

Milwaukee-Mitchell

Tue 4/15

6:45 am-5:09 pm

2 stops9h 24m

$328

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 5/14

12:30 pm-5:36 pm

1 stop6h 06m

Milwaukee-Mitchell

Sun 5/18

7:07 am-10:44 pm

1 stop14h 37m

$334

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 5/9

5:00 pm-11:27 am

1 stop19h 27m

Milwaukee-Mitchell

Sun 5/11

6:34 pm-11:16 pm

1 stop3h 42m

$367

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Mon 4/28

6:45 am-11:37 am

1 stop29h 52m

Milwaukee-Mitchell

Mon 5/5

7:48 pm-7:57 pm

2 stops23h 09m

$404

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Thu 5/15

6:30 am-7:43 am

2 stops26h 13m

Milwaukee-Mitchell

Thu 5/22

12:22 pm-11:55 pm

2 stops34h 33m

$410

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Thu 5/15

4:25 pm-11:27 am

1 stop20h 02m

Milwaukee-Mitchell

Thu 5/22

12:22 pm-5:06 pm

1 stop27h 44m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 23 results
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3

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, February is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of $280). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of $376). 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.

What is the cheapest time of day to fly from ON to MKE?

Find hourly flight availability from Ontario to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Milwaukee as you normally would.

Rainfall in Milwaukee by month

Plan your trip to Milwaukee by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Milwaukee ranges from 1.4 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. January is typically the driest time to visit Milwaukee when rainfall is around 1.4 in.

Temperature in Milwaukee by month

Plan your trip to Milwaukee by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Milwaukee, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Milwaukee. Reviews last updated March 31, 2025.
Read through reviews of airlines operating flights from Ontario to Milwaukee, such as Alaska Airlines, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
WestJet
7.2
Good
2,789 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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?

    Milwaukee-Mitchell (MKE), located 6.4 mi from the city center, is the airport you fly into when you book flights from Ontario to Milwaukee.

  • What are the cheapest airlines to fly from Region of Ontario to Milwaukee one-way?

    $186 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $187 and $191, respectively.

  • 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, February is the cheapest month in which you can book a flight from Region of Ontario to Milwaukee (average of $280). Flying from Region of Ontario to Milwaukee in June is currently the most expensive (average of $376). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Mequon
Pewaukee
Sheboygan
Oak Creek
Wauwatosa

Browse thousands of different options on Cheapflights for your next trip

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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 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$294Average$634FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$299Average$418FlexibilityNo cancel feeOn-time71%
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