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$72+ Cheap flights from Wisconsin to Ontario (ONT)

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ONT
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Wisconsin to Ontario

Keep the following information in mind while searching for Wisconsin to Ontario flight deals. Data was last updated August 20, 2025.

Round-trip from

$142
(Gotogate)

One-way from

$72
(CheapOair)

Popular in

March

Cheapest in

July

Average price

$314
From Wisconsin to Ontario
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One-way flight from Wisconsin to Ontario
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Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Wisconsin to Ontario

Cheapest flights from Wisconsin to Ontario
Explore the most affordable flight options available from Wisconsin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Gotogate deal was found by Cheapflights users on 8/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:45 amMSP - ONT
1 stop15h 14mFrontier
Sun 9/143:43 pmONT - MSP
1 stop6h 34mFrontier
Deal found 8/19$142
This CheapOair deal was found by Cheapflights users on 8/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/58:38 pmMSP - ONT
1 stop25h 16mFrontier
Mon 9/84:08 pmONT - MSP
1 stop6h 08mFrontier
Deal found 8/19$143
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:00 amMSP - ONT
1 stop25h 23mFrontier
Sun 9/143:43 pmONT - MSP
1 stop6h 34mFrontier
Deal found 8/20$144
This Mytrip deal was found by Cheapflights users on 8/19. 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.
Sat 9/208:25 amORD - ONT
1 stop13h 29mFrontier
Sat 9/278:59 pmONT - ORD
1 stop10h 38mFrontier
Deal found 8/19$148
This CheapOair deal was found by Cheapflights users on 8/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:49 pmMSP - ONT
1 stop12h 00mFrontier
Mon 10/206:53 amONT - MSP
1 stop24h 12mFrontier
Deal found 8/19$148
This Booking.com deal was found by Cheapflights users on 8/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:25 amORD - ONT
1 stop24h 58mFrontier
Tue 9/98:59 pmONT - ORD
1 stop22h 29mFrontier
Deal found 8/19$149
This Gotogate deal was found by Cheapflights users on 8/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:35 amORD - ONT
1 stop16h 19mFrontier
Tue 10/77:04 amONT - ORD
1 stop14h 49mFrontier
Deal found 8/20$152
This Gotogate deal was found by Cheapflights users on 8/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:00 amORD - ONT
1 stop27h 53mFrontier
Wed 9/248:59 pmONT - ORD
1 stop10h 38mFrontier
Deal found 8/20$153
This CheapOair deal was found by Cheapflights users on 8/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:49 pmMSP - ONT
1 stop12h 00mFrontier
Sat 10/188:34 amONT - MSP
1 stop6h 41mFrontier
Deal found 8/19$153
This CheapOair deal was found by Cheapflights users on 8/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:00 amORD - ONT
1 stop12h 28mFrontier
Thu 10/236:53 amONT - ORD
1 stop15h 00mFrontier
Deal found 8/19$155
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:20 amORD - ONT
1 stop14h 34mFrontier
Sun 10/1212:49 pmONT - ORD
1 stop9h 37mFrontier
Deal found 8/20$156
This Frontier deal was found by Cheapflights users on 8/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:00 amMSP - ONT
1 stop5h 35mFrontier
Sat 10/258:34 amONT - MSP
1 stop6h 52mFrontier
Deal found 8/18$158

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wisconsin 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 August 20, 2025.
Use the filters below to find and compare flights from Wisconsin to Ontario that are best for you.

Fly from

Wisconsin

Fly to

Ontario

Route

Depart

Return

Price

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Thu 10/30

6:00 am-11:10 am

1 stop7h 10m

Ontario

Mon 11/3

4:05 pm-12:14 am

1 stop6h 09m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 9/20

8:00 am-7:54 pm

1 stop13h 54m

Ontario

Tue 9/23

8:59 pm-8:46 pm

1 stop21h 47m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Fri 9/5

8:38 pm-7:54 pm

1 stop25h 16m

Ontario

Mon 9/8

4:08 pm-12:16 am

1 stop6h 08m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Tue 9/9

8:00 am-7:54 pm

1 stop13h 54m

Ontario

Wed 9/10

8:59 pm-12:17 am

1 stop25h 18m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Wed 10/1

8:00 am-7:54 pm

1 stop13h 54m

Ontario

Sat 10/11

7:04 am-11:53 pm

1 stop14h 49m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sun 10/26

10:00 am-9:35 am

1 stop25h 35m

Ontario

Fri 10/31

6:53 am-12:14 am

1 stop15h 21m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 9/6

8:00 am-7:23 am

1 stop25h 23m

Ontario

Mon 9/15

4:08 pm-12:16 am

1 stop6h 08m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Fri 10/3

8:38 pm-7:54 pm

1 stop25h 16m

Ontario

Fri 10/10

11:53 am-11:53 pm

1 stop10h 00m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Fri 9/5

8:38 pm-7:54 pm

1 stop25h 16m

Ontario

Wed 9/10

8:59 pm-12:17 am

1 stop25h 18m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 9/6

8:00 am-7:23 am

1 stop25h 23m

Ontario

Sun 9/14

8:59 pm-12:16 am

1 stop25h 17m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 60 results
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Best time to book a flight from Wisconsin to Ontario

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

What is the cheapest month to book a flight from Wisconsin to Ontario?

Currently, August is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $246). Flying from Wisconsin to Ontario in March is currently the most expensive (average of $328). 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 WI to ONT?

Find hourly flight availability from Wisconsin to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Wisconsin 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 into for flights to Ontario from Wisconsin?

    If you book a flight to Ontario from Wisconsin, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How long is the flight from Wisconsin to Ontario?

    For as low as $143, Frontier can have you in Ontario from Wisconsin in 7h 10m. The distance between Wisconsin and Ontario is about 1491 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Wisconsin to Ontario?

    When deciding which route to take from Wisconsin to Ontario consider Chicago O'Hare Intl - Ontario, Minneapolis St Paul - Ontario or Milwaukee-Mitchell - Ontario as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Wisconsin 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 Wisconsin to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $246). Flying from Wisconsin to Ontario in March is currently the most expensive (average of $328). 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 Wisconsin 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 Wisconsin to Ontario

Discover the top 5 airlines that operate flights from Wisconsin 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$208FlexibilityNo cancel feeOn-time62%
DeltaCheapest$288Average$442FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$441FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$504FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$342Average$426FlexibilityNo cancel feeOn-time63%

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