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$61+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ONT
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
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 January 12, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$128
(Frontier)

One-way from

$61
(Trip.com)

Popular in

December

Cheapest in

July

Average price

$384
Provider with most accurate pricing for Milwaukee-Mitchell-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Los Angeles flights.
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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. 10% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 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 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 January 12, 2026.

This Expedia deal was found by Cheapflights users on 1/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/410:45 am
MSP
-
ONT
1 stop6h 22m
Frontier
Tue 2/108:36 am
ONT
-
MSP
1 stop12h 23m
Frontier
Deal found 1/12$128
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
Wed 3/116:21 pm
MSP
-
ONT
1 stop7h 38m
Frontier
Wed 3/256:15 am
ONT
-
MSP
1 stop15h 42m
Frontier
Deal found 1/11$148
This Super.com deal was found by Cheapflights users on 1/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/310:45 am
MSP
-
ONT
1 stop6h 22m
Frontier
Thu 2/56:20 am
ONT
-
MSP
1 stop6h 21m
Frontier
Deal found 1/12$149
This CheapOair deal was found by Cheapflights users on 1/12. 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 2/96:45 am
MSP
-
ONT
1 stop19h 35m
Frontier
Wed 2/118:10 am
ONT
-
MSP
1 stop22h 55m
Frontier
Deal found 1/12$150
This CheapOair deal was found by Cheapflights users on 1/11. 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.
Tue 3/178:55 pm
ORD
-
ONT
1 stop20h 59m
Frontier
Tue 3/244:49 pm
ONT
-
ORD
1 stop11h 19m
Frontier
Deal found 1/11$151
This Booking.com deal was found by Cheapflights users on 1/11. 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 3/116:21 pm
MSP
-
ONT
1 stop7h 38m
Frontier
Tue 3/176:15 am
ONT
-
MSP
1 stop15h 42m
Frontier
Deal found 1/11$151
This Kiwi.com deal was found by Cheapflights users on 1/11. 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 3/28:09 pm
MSP
-
ONT
1 stop27h 25m
Frontier
Fri 3/66:15 am
ONT
-
MSP
1 stop9h 30m
Frontier
Deal found 1/11$156
This Frontier deal was found by Cheapflights users on 1/10. 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.
Thu 2/194:16 pm
ORD
-
ONT
1 stop9h 43m
Frontier
Sat 2/288:21 am
ONT
-
ORD
1 stop12h 56m
Frontier
Deal found 1/10$159
This Expedia deal was found by Cheapflights users on 1/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:09 pm
MSP
-
ONT
1 stop5h 50m
Frontier
Sat 3/76:15 am
ONT
-
MSP
1 stop9h 11m
Frontier
Deal found 1/11$160
This CheapOair deal was found by Cheapflights users on 1/9. 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 3/27:19 pm
ORD
-
ONT
1 stop19h 52m
Frontier
Sat 3/710:03 pm
ONT
-
ORD
1 stop6h 05m
Frontier
Deal found 1/9$161
This CheapOair deal was found by Cheapflights users on 1/12. 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.
Tue 3/246:45 am
MSP
-
ONT
1 stop19h 14m
Frontier
Thu 4/96:00 am
ONT
-
MSP
1 stop16h 02m
Frontier
Deal found 1/12$161
This Mytrip deal was found by Cheapflights users on 1/12. 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 1/3110:45 am
MSP
-
ONT
1 stop14h 39m
Frontier
Wed 2/47:15 am
ONT
-
MSP
1 stop13h 44m
Frontier
Deal found 1/12$169

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 January 12, 2026.
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

Wed 3/11

5:54 pm-1:11 pm

1 stop21h 17m

Ontario

Wed 3/18

6:15 am-11:57 pm

1 stop15h 42m

$151

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 1/24

10:45 am-11:24 pm

1 stop14h 39m

Ontario

Wed 1/28

7:15 am-10:59 pm

1 stop13h 44m

$177

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Fri 2/6

5:22 pm-12:20 am

1 stop8h 58m

Ontario

Sun 2/8

6:20 am-9:05 am

1 stop24h 45m

$211

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Fri 3/20

1:47 pm-11:59 pm

1 stop12h 12m

Ontario

Tue 3/24

6:15 am-5:26 pm

1 stop9h 11m

$245

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Wed 3/11

6:45 am-11:59 pm

1 stop19h 14m

Ontario

Sun 3/15

6:15 am-11:57 pm

1 stop15h 42m

$246

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Mon 3/23

10:20 pm-3:54 pm

1 stop19h 34m

Ontario

Fri 3/27

11:17 am-9:09 pm

1 stop7h 52m

$281

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Thu 2/26

3:47 pm-11:32 pm

1 stop9h 45m

Ontario

Tue 3/3

4:02 pm-2:51 pm

1 stop20h 49m

$295

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Fri 2/27

3:47 pm-11:32 pm

1 stop9h 45m

Ontario

Thu 3/5

6:14 am-2:51 pm

1 stop30h 37m

$305

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 4/1

3:46 pm-10:26 pm

1 stop8h 40m

Ontario

Wed 4/8

7:00 am-4:48 pm

1 stop7h 48m

$309

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Tue 3/10

11:24 am-6:42 pm

1 stop9h 18m

Ontario

Wed 3/18

7:59 pm-9:11 am

2 stops11h 12m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

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, July is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $60). Flying from Wisconsin to Ontario in March is currently the most expensive (average of $250). 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.

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 $305, Frontier can have you in Ontario from Wisconsin in 6h 38m. The distance between Wisconsin and Ontario is about 1639 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Wisconsin to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $129. Users have also found prices from $138 and $143 on United Airlines and American Airlines, respectively.

  • 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, July is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $60). Flying from Wisconsin to Ontario in March is currently the most expensive (average of $250). 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 4 airlines flying from Wisconsin to Ontario

Discover the top 4 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 January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$278Average$438FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$433FlexibilityNo cancel feeOn-time69%
DeltaCheapest$293Average$384FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$330Average$430FlexibilityNo cancel feeOn-time63%

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