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$167+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — YYZ
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$370
(Kiwi.com)

One-way from

$167
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$581
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. 18% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Fri 8/156:00 amMKE - YYZ
1 stop15h 44mMultiple Airlines
Fri 8/224:00 pmYYZ - MKE
1 stop8h 06mMultiple Airlines
Deal found 7/1$370
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amMKE - YUL
2 stops14h 17mMultiple Airlines
Sun 9/74:45 pmYUL - MKE
3 stops25h 02mMultiple Airlines
Deal found 6/30$413
This American Airlines deal was found by Cheapflights users on 7/1. 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 9/37:50 amMKE - YYZ
1 stop8h 57mAmerican Airlines
Sat 9/61:15 pmYYZ - MKE
1 stop7h 45mAmerican Airlines
Deal found 7/1$418
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/206:32 amMKE - YUL
1 stop7h 53mAmerican Airlines
Wed 8/205:29 pmYUL - MKE
1 stop16h 59mAmerican Airlines
Deal found 6/30$421
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 9/186:00 amMKE - YUL
1 stop6h 54mUnited Airlines
Tue 9/234:55 pmYUL - MKE
1 stop6h 46mUnited Airlines
Deal found 6/30$428
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/144:37 pmMKE - YOW
1 stop23h 29mMultiple Airlines
Thu 7/174:25 pmYOW - MKE
1 stop24h 17mMultiple Airlines
Deal found 6/30$447
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Fri 10/246:00 amMKE - YYZ
1 stop9h 43mUnited Airlines
Sun 10/266:52 amYYZ - MKE
1 stop9h 15mUnited Airlines
Deal found 6/30$517
This WestJet deal was found by Cheapflights users on 6/30. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/106:20 amMKE - YUL
1 stop15h 55mWestJet
Fri 8/156:45 amYUL - MKE
2 stops15h 48mWestJet
Deal found 6/30$593
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Fri 8/87:00 amMKE - YOW
1 stop9h 06mUnited Airlines
Mon 8/1110:37 amYOW - MKE
1 stop9h 33mUnited Airlines
Deal found 6/30$774
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/148:35 amMKE - YXU
2 stops7h 32mUnited Airlines
Thu 8/219:55 amYXU - MKE
2 stops6h 14mUnited Airlines
Deal found 6/29$778
This Delta deal was found by Cheapflights users on 6/30. 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.
Wed 8/2712:15 pmMKE - YOW
2 stops11h 07mDelta
Sun 8/315:55 amYOW - MKE
2 stops7h 33mDelta
Deal found 6/30$838
This Mytrip deal was found by Cheapflights users on 6/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/141:13 pmMKE - YXU
3 stops28h 56mMultiple Airlines
Thu 8/216:00 amYXU - MKE
3 stops35h 39mMultiple Airlines
Deal found 6/29$1,240

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 July 1, 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

Fri 8/15

6:00 am-10:44 pm

1 stop15h 44m

Toronto Pearson Intl

Fri 8/22

4:00 pm-11:06 pm

1 stop8h 06m

$370

MilwaukeeMontreal

MKE - YUL

MKEYUL

Milwaukee-Mitchell

Wed 9/3

6:00 am-9:17 pm

2 stops14h 17m

Montreal Pierre Elliott Trudeau Intl

Sun 9/7

4:45 pm-4:47 pm

3 stops25h 02m

$413

MilwaukeeToronto

MKE - YYZ

MKEYYZ

Milwaukee-Mitchell

Wed 9/3

7:50 am-5:47 pm

1 stop8h 57m

Toronto Pearson Intl

Sat 9/6

1:15 pm-8:00 pm

1 stop7h 45m

$418

MilwaukeeMontreal

MKE - YUL

MKEYUL

Milwaukee-Mitchell

Wed 8/20

6:32 am-3:25 pm

1 stop7h 53m

Montreal Pierre Elliott Trudeau Intl

Wed 8/20

5:29 pm-9:28 am

1 stop16h 59m

$421

MilwaukeeMontreal

MKE - YUL

MKEYUL

Milwaukee-Mitchell

Thu 9/18

6:00 am-1:54 pm

1 stop6h 54m

Montreal Pierre Elliott Trudeau Intl

Tue 9/23

4:55 pm-10:41 pm

1 stop6h 46m

$428

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Mon 7/14

4:37 pm-5:06 pm

1 stop23h 29m

Ottawa

Thu 7/17

4:25 pm-3:42 pm

1 stop24h 17m

$447

MilwaukeeMontreal

MKE - YUL

MKEYUL

Milwaukee-Mitchell

Sun 8/10

6:20 am-11:15 pm

1 stop15h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 8/15

6:45 am-9:33 pm

2 stops15h 48m

$593

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Fri 8/8

7:00 am-5:06 pm

1 stop9h 06m

Ottawa

Mon 8/11

10:37 am-7:10 pm

1 stop9h 33m

$774

MilwaukeeLondon

MKE - YXU

MKEYXU

Milwaukee-Mitchell

Thu 8/14

8:35 am-5:07 pm

2 stops7h 32m

London

Thu 8/21

9:55 am-3:09 pm

2 stops6h 14m

$778

MilwaukeeOttawa

MKE - YOW

MKEYOW

Milwaukee-Mitchell

Wed 8/27

12:15 pm-12:22 am

2 stops11h 07m

Ottawa

Sun 8/31

5:55 am-12:28 pm

2 stops7h 33m

$838

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 20 results
1
2

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, January is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $243). Flying from Milwaukee to Region of Ontario in August is currently the most expensive (average of $348). 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 July 1, 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
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,858 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,909 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $185. United Airlines flights start at $242 while deals on WestJet start at $302 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, January is the cheapest month in which you can book a flight from Milwaukee to Region of Ontario (average of $243). Flying from Milwaukee to Region of Ontario in August is currently the most expensive (average of $348). 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 5 airlines flying from Milwaukee to Ontario

Discover the top 5 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$188Average$534FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$345Average$430FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$345Average$536FlexibilityNo cancel feeOn-time69%
DeltaCheapest$359Average$431FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$395Average$466FlexibilityNo cancel feeOn-time60%

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