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$107+ Cheap flights from Milwaukee (MKE) to Ontario

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
Feb 8 — Feb 151
Sun 2/8
Sun 2/15
1 adult, Economy
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Cheap flight deals from Milwaukee to Ontario

Keep the following information in mind while searching for Milwaukee to Ontario flight deals. Data was last updated January 9, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$284
(Kiwi.com)

One-way from

$107
(Kiwi.com)

Popular in

October

Cheapest in

March

Average price

$362
Provider with most accurate pricing for Milwaukee-Mitchell-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Toronto (YTO) flights.
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From Milwaukee-Mitchell to Ontario
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One-way flight from Milwaukee-Mitchell to Ontario
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Highest demand for flights based on searches. 13% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Milwaukee to Ontario

Cheapest flights from Milwaukee to Ontario
Explore the most affordable flight options available from Milwaukee to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 2/36:53 pmMKE - YOW
1 stop21h 20mMultiple Airlines
Wed 2/117:00 amYOW - MKE
2 stops25h 40mMultiple Airlines
Deal found 1/6$284
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Tue 2/36:53 pmMKE - YOW
1 stop21h 20mMultiple Airlines
Thu 2/124:15 pmYOW - MKE
2 stops18h 28mMultiple Airlines
Deal found 1/8$288
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 2/104:42 pmMKE - YOW
1 stop23h 31mMultiple Airlines
Thu 2/193:05 pmYOW - MKE
2 stops19h 38mMultiple Airlines
Deal found 1/6$297
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Tue 2/36:53 pmMKE - YOW
1 stop21h 20mMultiple Airlines
Sun 2/84:20 pmYOW - MKE
2 stops18h 38mMultiple Airlines
Deal found 1/8$298
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 2/36:53 pmMKE - YOW
1 stop21h 20mMultiple Airlines
Mon 2/94:20 pmYOW - MKE
1 stop24h 27mMultiple Airlines
Deal found 1/6$299
This American Airlines deal was found by Cheapflights users on 1/8. 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 2/49:33 amMKE - YUL
2 stops12h 26mAmerican Airlines
Mon 2/93:50 pmYUL - MKE
1 stop20h 11mAmerican Airlines
Deal found 1/8$325
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/145:00 amMKE - YOW
1 stop4h 26mUnited Airlines
Sat 2/142:15 pmYOW - MKE
2 stops9h 13mUnited Airlines
Deal found 1/7$330
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 2/27:01 pmMKE - YOW
2 stops28h 24mMultiple Airlines
Mon 2/94:20 pmYOW - MKE
1 stop24h 27mMultiple Airlines
Deal found 1/8$337
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Sun 2/86:58 pmMKE - YOW
1 stop28h 00mMultiple Airlines
Thu 2/193:05 pmYOW - MKE
2 stops19h 38mMultiple Airlines
Deal found 1/7$345
This American Airlines deal was found by Cheapflights users on 1/7. 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 2/138:00 amMKE - YYZ
1 stop12h 29mAmerican Airlines
Mon 2/164:44 pmYYZ - MKE
1 stop16h 05mAmerican Airlines
Deal found 1/7$353
This American Airlines deal was found by Cheapflights users on 1/8. 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 2/49:33 amMKE - YYZ
1 stop7h 47mAmerican Airlines
Thu 2/126:00 amYYZ - MKE
1 stop14h 59mAmerican Airlines
Deal found 1/8$359
This American Airlines deal was found by Cheapflights users on 1/8. 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.
Sat 2/76:58 pmMKE - YUL
1 stop19h 10mAmerican Airlines
Sat 2/143:45 pmYUL - MKE
1 stop8h 12mAmerican Airlines
Deal found 1/8$362

Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee to Ontario 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 January 9, 2026.
Use the filters below to find and compare flights from Milwaukee to Ontario that are best for you.

Fly from

Milwaukee

Fly to

Ontario

Route

Depart

Return

Price

MilwaukeeMontreal

MKE - YUL

MKEYUL

Milwaukee-Mitchell

Wed 2/4

9:33 am-10:59 pm

2 stops12h 26m

Montreal Pierre Elliott Trudeau Intl

Mon 2/9

3:50 pm-11:01 am

1 stop20h 11m

$325

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Sat 2/14

5:00 am-10:26 am

1 stop4h 26m

Ottawa

Sat 2/14

2:15 pm-10:28 pm

2 stops9h 13m

$330

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Tue 2/3

6:53 pm-5:13 pm

1 stop21h 20m

Ottawa

Tue 2/10

4:15 pm-3:44 pm

2 stops24h 29m

$346

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Mon 2/2

2:32 pm-9:18 pm

1 stop5h 46m

Ottawa

Sun 2/8

5:11 pm-10:56 pm

1 stop6h 45m

$349

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Thu 2/5

8:33 am-5:12 pm

1 stop7h 39m

Ottawa

Sun 2/8

5:11 pm-9:59 pm

1 stop5h 48m

$349

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Fri 2/6

7:00 am-5:12 pm

1 stop9h 12m

Ottawa

Mon 2/9

5:11 pm-9:59 pm

1 stop5h 48m

$349

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Sun 2/1

8:33 am-5:12 pm

1 stop7h 39m

Ottawa

Wed 2/11

6:20 am-12:09 pm

1 stop6h 49m

$349

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Sun 2/1

6:00 am-5:12 pm

1 stop10h 12m

Ottawa

Mon 2/9

5:11 pm-9:59 pm

1 stop5h 48m

$349

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Fri 2/13

8:00 am-9:29 pm

1 stop12h 29m

Toronto Pearson Intl

Mon 2/16

4:44 pm-7:49 am

1 stop16h 05m

$353

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Wed 2/4

9:33 am-6:20 pm

1 stop7h 47m

Toronto Pearson Intl

Thu 2/12

6:00 am-7:59 pm

1 stop14h 59m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 40 results
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Best time to book a flight from Milwaukee to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Milwaukee 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 Milwaukee to Ontario

What is the cheapest month to book a flight from Milwaukee to Region of Ontario?

Currently, March is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $79). Flying from Milwaukee to Region of Ontario in December is currently the most expensive (average of $211). 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 Milwaukee to Region of Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated January 9, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Milwaukee to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,031 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,031 reviews
Delta
7.9
Good
8,031 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,142 reviews
Delta
7.9
Good
8,031 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,099 reviews
Delta
7.9
Good
8,031 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
WestJet
7.2
Good
3,234 reviews
Delta
7.9
Good
8,031 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to Ontario. 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 from for flights from Milwaukee to Ontario?

    If you book a flight to Ontario from Milwaukee, you will be flying from Milwaukee-Mitchell, which is the city’s only airport. Milwaukee-Mitchell (MKE) is located 6.4 mi from the center of Milwaukee.

  • How long is the flight from Milwaukee to Region of Ontario?

    A quick flight from Milwaukee to Region of Ontario can take about 5h 46m. American Airlines provides one of the quickest options available for as low as $349. Airlines will cover a distance of 627 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Milwaukee to Region of Ontario?

    While some choose either Milwaukee-Mitchell - Montreal Pierre Elliott Trudeau Intl or Milwaukee-Mitchell - Ottawa, Milwaukee-Mitchell - Toronto Pearson Intl is the most popular route from Milwaukee to Region of Ontario.

  • Can I find deals for flights from Milwaukee to Ontario that include hotel bookings?

    Yes. In addition to deals on Milwaukee to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Milwaukee to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Ontario.

  • Can I find deals for business class flights from Milwaukee to Ontario?

    Yes. Cheapflights offers flight deals from Milwaukee to Ontario 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 Milwaukee to Region of Ontario?

    Currently, March is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $79). Flying from Milwaukee to Region of Ontario in December is currently the most expensive (average of $211). 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 Milwaukee to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Milwaukee to Ontario

Discover the top airline that operate flights from Milwaukee to Ontario. 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 January 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$349Average$476FlexibilityNo cancel feeOn-time71%

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