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$154+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
1 adult, Economy
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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 octubre 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/14. 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.
vie. 11/149:05 amMKE - YYZ
1 stop11h 24mAmerican Airlines
sáb. 11/154:44 pmYYZ - MKE
1 stop7h 21mAmerican Airlines
Deal found 10/14$358
This Mytrip deal was found by Cheapflights users on 10/14. 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.
vie. 10/317:38 pmMKE - YYZ
2 stops15h 05mMultiple Airlines
dom. 11/27:10 amYYZ - MKE
1 stop11h 58mMultiple Airlines
Deal found 10/14$427
This Mytrip deal was found by Cheapflights users on 10/15. 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.
jue. 12/411:02 amMKE - YUL
3 stops28h 53mMultiple Airlines
dom. 12/74:35 pmYUL - MKE
1 stop18h 22mMultiple Airlines
Deal found 10/15$473
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
dom. 11/3012:35 pmMKE - YYZ
1 stop22h 08mMultiple Airlines
dom. 12/78:00 pmYYZ - MKE
1 stop14h 57mMultiple Airlines
Deal found 10/16$492
This American Airlines deal was found by Cheapflights users on 10/16. 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.
jue. 11/206:59 pmMKE - YYZ
1 stop16h 33mAmerican Airlines
dom. 11/236:00 amYYZ - MKE
1 stop13h 37mAmerican Airlines
Deal found 10/16$502
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
jue. 11/2012:35 pmMKE - YYZ
1 stop10h 36mMultiple Airlines
dom. 11/2310:15 pmYYZ - MKE
2 stops26h 26mMultiple Airlines
Deal found 10/16$511
This American Airlines deal was found by Cheapflights users on 10/14. 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.
sáb. 11/110:49 amMKE - YYZ
1 stop11h 40mAmerican Airlines
vie. 11/76:20 pmYYZ - MKE
1 stop14h 55mAmerican Airlines
Deal found 10/14$520
This American Airlines deal was found by Cheapflights users on 10/15. 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.
mié. 11/129:05 amMKE - YUL
2 stops12h 34mAmerican Airlines
sáb. 11/1512:59 pmYUL - MKE
2 stops11h 06mAmerican Airlines
Deal found 10/15$526
This United Airlines deal was found by Cheapflights users on 10/15. 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.
dom. 11/28:44 amMKE - YUL
1 stop4h 16mUnited Airlines
mar. 11/46:00 amYUL - MKE
1 stop5h 18mUnited Airlines
Deal found 10/15$538
This American Airlines deal was found by Cheapflights users on 10/15. 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.
vie. 12/125:00 amMKE - YUL
1 stop9h 10mAmerican Airlines
dom. 12/143:50 pmYUL - MKE
1 stop17h 27mAmerican Airlines
Deal found 10/15$540
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
dom. 11/3012:35 pmMKE - YUL
2 stops32h 45mMultiple Airlines
dom. 12/74:35 pmYUL - MKE
1 stop18h 22mMultiple Airlines
Deal found 10/16$547
This Delta deal was found by Cheapflights users on 10/16. 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.
mar. 11/46:00 amMKE - YUL
1 stop6h 35mDelta
sáb. 11/89:28 amYUL - MKE
1 stop9h 24mDelta
Deal found 10/16$554

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 octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$358
(American Airlines)

One-way from

$154
(United Airlines)

Popular in

August

Cheapest in

March

Average price

$642
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. 12% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 16, 2025.
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

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

vie. 12/5

5:00 am-5:44 pm

1 stop11h 44m

Toronto Pearson Intl

dom. 12/7

11:36 am-11:05 pm

1 stop12h 29m

$358

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

vie. 11/28

8:52 am-9:29 pm

1 stop11h 37m

Toronto Pearson Intl

vie. 12/5

6:24 pm-8:17 am

1 stop14h 53m

$358

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

vie. 11/14

9:05 am-9:29 pm

1 stop11h 24m

Toronto Pearson Intl

sáb. 11/15

4:44 pm-11:05 pm

1 stop7h 21m

$358

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

dom. 4/5

8:29 am-1:45 pm

1 stop4h 16m

Ottawa

mié. 4/8

10:35 am-1:43 pm

1 stop4h 08m

$362

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

vie. 10/31

7:38 pm-11:43 am

2 stops15h 05m

Toronto Pearson Intl

dom. 11/2

7:10 am-6:08 pm

1 stop11h 58m

$427

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

dom. 11/30

12:35 pm-11:43 am

1 stop22h 08m

Toronto Pearson Intl

dom. 12/7

8:00 pm-9:57 am

1 stop14h 57m

$492

MilwaukeeMontreal

MKE - YUL

MKEYUL

Milwaukee-Mitchell

jue. 12/4

11:02 am-4:55 pm

3 stops28h 53m

Montreal Pierre Elliott Trudeau Intl

dom. 12/7

5:25 pm-9:57 am

2 stops17h 32m

$497

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

jue. 11/20

6:59 pm-12:32 pm

1 stop16h 33m

Toronto Pearson Intl

dom. 11/23

6:00 am-6:37 pm

1 stop13h 37m

$502

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

jue. 11/20

12:35 pm-12:11 am

1 stop10h 36m

Toronto Pearson Intl

dom. 11/23

10:15 pm-11:41 pm

2 stops26h 26m

$511

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

dom. 4/5

12:20 pm-12:39 am

2 stops11h 19m

Ottawa

mié. 4/8

5:40 am-12:31 pm

2 stops7h 51m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 44 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 $106). Flying from Milwaukee to Region of Ontario in July is currently the most expensive (average of $173). 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 octubre 16, 2025.
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
8.0
Very good
7,984 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
7,984 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
WestJet
7.2
Good
3,127 reviews
Delta
8.0
Very good
7,984 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,306 reviews
Delta
8.0
Very good
7,984 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 4h 16m. American Airlines provides one of the quickest options available for as low as $362. 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 cheapest airlines to fly from Milwaukee to Region of Ontario one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $154. American Airlines flights start at $237 while deals on Delta start at $248 one-way.

  • 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 $106). Flying from Milwaukee to Region of Ontario in July is currently the most expensive (average of $173). 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 octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$344Average$472FlexibilityNo cancel feeOn-time71%

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