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$178+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap 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 February 28, 2026.

This American Airlines deal was found by Cheapflights users on 2/28. 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.
Tue 4/144:26 pm
MKE
-
YUL
1 stop18h 18m
American Airlines
Tue 4/2112:30 pm
YUL
-
MKE
1 stop8h 36m
American Airlines
Deal found 2/28$315
This American Airlines deal was found by Cheapflights users on 2/28. 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 3/288:31 am
MKE
-
YYZ
1 stop11h 58m
American Airlines
Thu 4/26:00 am
YYZ
-
MKE
1 stop10h 53m
American Airlines
Deal found 2/28$334
This American Airlines deal was found by Cheapflights users on 2/27. 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 5/15:41 pm
MKE
-
YUL
1 stop17h 03m
American Airlines
Mon 5/412:30 pm
YUL
-
MKE
1 stop10h 30m
American Airlines
Deal found 2/27$356
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Sun 5/31:53 pm
MKE
-
YUL
1 stop20h 51m
American Airlines
Sat 5/161:03 pm
YUL
-
MKE
2 stops11h 37m
American Airlines
Deal found 2/27$365
This United Airlines deal was found by Cheapflights users on 2/27. 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.
Mon 4/275:10 am
MKE
-
YOW
1 stop7h 49m
United Airlines
Thu 4/3010:44 am
YOW
-
MKE
1 stop4h 43m
United Airlines
Deal found 2/27$366
This American Airlines deal was found by Cheapflights users on 2/25. 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.
Thu 4/237:01 am
MKE
-
YYZ
1 stop15h 28m
American Airlines
Tue 4/286:15 am
YYZ
-
MKE
1 stop8h 15m
American Airlines
Deal found 2/25$372
This American Airlines deal was found by Cheapflights users on 2/28. 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.
Sun 3/295:00 am
MKE
-
YYZ
1 stop11h 36m
American Airlines
Thu 4/21:10 pm
YYZ
-
MKE
1 stop10h 57m
American Airlines
Deal found 2/28$374
This American Airlines deal was found by Cheapflights users on 2/26. 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.
Sun 4/56:30 am
MKE
-
YUL
1 stop7h 28m
American Airlines
Thu 4/912:30 pm
YUL
-
MKE
1 stop12h 10m
American Airlines
Deal found 2/26$379
This American Airlines deal was found by Cheapflights users on 2/25. 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 4/115:06 am
MKE
-
YYZ
1 stop11h 37m
American Airlines
Sat 4/181:15 pm
YYZ
-
MKE
1 stop7h 51m
American Airlines
Deal found 2/25$382
This American Airlines deal was found by Cheapflights users on 2/25. 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.
Thu 4/237:01 am
MKE
-
YYZ
1 stop15h 28m
American Airlines
Sun 4/266:15 am
YYZ
-
MKE
1 stop11h 56m
American Airlines
Deal found 2/25$398
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 4/122:24 pm
MKE
-
YYZ
1 stop22h 52m
Multiple Airlines
Sun 4/198:20 pm
YYZ
-
MKE
1 stop16h 06m
Multiple Airlines
Deal found 2/26$409
This American Airlines deal was found by Cheapflights users on 2/24. 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.
Sun 4/127:01 am
MKE
-
YYZ
1 stop9h 42m
American Airlines
Fri 4/176:15 am
YYZ
-
MKE
1 stop10h 41m
American Airlines
Deal found 2/24$415

Find flight deals from Milwaukee to Ontario

Keep the following information in mind while searching for Milwaukee to Ontario flight deals. Data was last updated February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$315
(American Airlines)

One-way from

$178
(American Airlines)

Popular in

October

Cheapest in

March

Average price

$538
Provider with most accurate pricing for Milwaukee-Mitchell-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Toronto (YTO) flights.
Search Deals
From Milwaukee-Mitchell to Ontario
Search Deals
One-way flight from Milwaukee-Mitchell to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 28, 2026.
Use the filters below to find and compare flights from Milwaukee to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Sat 3/28

8:31 am-9:29 pm

1 stop11h 58m

Toronto Pearson Intl

Thu 4/2

6:00 am-3:53 pm

1 stop10h 53m

$334

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Mon 3/16

6:00 am-9:18 pm

1 stop14h 18m

Ottawa

Wed 3/18

6:20 am-10:30 am

1 stop5h 10m

$366

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Mon 4/27

5:10 am-5:07 pm

1 stop10h 57m

Ottawa

Thu 4/30

5:20 pm-11:50 pm

1 stop7h 30m

$366

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Mon 5/4

5:06 am-2:33 pm

1 stop8h 27m

Toronto Pearson Intl

Fri 5/8

3:13 pm-10:00 pm

1 stop7h 47m

$398

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Sun 4/12

7:01 am-5:43 pm

1 stop9h 42m

Toronto Pearson Intl

Fri 4/17

6:15 am-3:56 pm

1 stop10h 41m

$415

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Thu 3/26

5:00 am-9:29 pm

1 stop15h 29m

Toronto Pearson Intl

Thu 4/2

1:10 pm-8:25 pm

1 stop8h 15m

$415

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Sun 3/29

5:00 am-9:29 pm

1 stop15h 29m

Toronto Pearson Intl

Wed 4/1

4:44 pm-11:07 pm

1 stop7h 23m

$419

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Mon 3/16

8:30 am-7:18 pm

2 stops9h 48m

Ottawa

Wed 3/18

5:11 pm-10:43 pm

1 stop6h 32m

$455

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Fri 5/8

5:55 am-5:11 pm

2 stops10h 16m

Ottawa

Tue 5/12

10:00 am-4:42 pm

2 stops7h 42m

$465

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Mon 4/27

12:33 pm-12:20 am

2 stops10h 47m

Ottawa

Thu 4/30

6:55 am-8:35 pm

2 stops14h 40m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 47 resultsSorted by cheapest first
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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 $78). Flying from Milwaukee to Region of Ontario in February is currently the most expensive (average of $183). 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.

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 February 28, 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
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

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
8,244 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

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
9,362 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

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
11,367 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

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
3,276 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

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 25m. American Airlines provides one of the quickest options available for as low as $502. Airlines will cover a distance of 720 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 $78). Flying from Milwaukee to Region of Ontario in February is currently the most expensive (average of $183). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Milwaukee to Ontario

Discover the top 3 airlines 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 February 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$252Average$604FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$315Average$476FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$348Average$575FlexibilityNo cancel feeOn-time69%

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