HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wisconsin

$60+ Cheap flights from Ontario (ONT) to Wisconsin

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Wisconsin with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Wisconsin

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Wisconsin (USWI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Ontario to Wisconsin

Cheapest flights from Ontario to Wisconsin
Explore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Frontier deal was found by Cheapflights users on 11/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:56 amONT - MSP
1 stop6h 40mFrontier
Wed 12/116:00 amMSP - ONT
1 stop19h 44mFrontier
Deal found 11/19$109
This Frontier deal was found by Cheapflights users on 11/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:56 amONT - ORD
1 stop11h 11mFrontier
Fri 1/248:25 pmORD - ONT
1 stop12h 46mFrontier
Deal found 11/20$128
This eDestinos deal was found by Cheapflights users on 11/18. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1810:39 pmONT - ORD
1 stop28h 51mMultiple Airlines
Wed 12/256:00 amORD - ONT
2 stops28h 06mMultiple Airlines
Deal found 11/18$241
This Booking.com deal was found by Cheapflights users on 11/19. 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.
Mon 12/166:34 pmONT - MSN
1 stop22h 26mFrontier
Thu 12/1911:44 amMSN - ONT
1 stop14h 15mFrontier
Deal found 11/19$248
This Alaska Airlines deal was found by Cheapflights users on 11/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/111:53 pmONT - ORD
1 stop7h 54mAlaska Airlines
Thu 1/93:35 pmORD - ONT
1 stop8h 38mAlaska Airlines
Deal found 11/20$251
This United Airlines deal was found by Cheapflights users on 11/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:50 pmONT - ORD
1 stop9h 04mUnited Airlines
Thu 1/28:45 amORD - ONT
1 stop5h 55mUnited Airlines
Deal found 11/18$282
This Delta deal was found by Cheapflights users on 11/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/77:10 amONT - ORD
1 stop7h 33mDelta
Tue 12/103:40 pmORD - ONT
1 stop9h 22mDelta
Deal found 11/20$284
This Travelocity deal was found by Cheapflights users on 11/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/128:55 pmONT - MSP
2 stops17h 31mMultiple Airlines
Tue 12/175:45 amMSP - ONT
1 stop7h 47mMultiple Airlines
Deal found 11/19$286
This American Airlines deal was found by Cheapflights users on 11/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/134:25 pmONT - ORD
1 stop6h 20mAmerican Airlines
Sat 1/186:00 amORD - ONT
1 stop7h 58mAmerican Airlines
Deal found 11/18$306
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/97:00 amONT - MSP
2 stops38h 58mAlaska Airlines
Thu 12/127:00 amMSP - ONT
1 stop18h 59mAlaska Airlines
Deal found 11/19$310
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/101:25 pmONT - MKE
1 stop6h 24mDelta
Mon 12/167:30 amMKE - ONT
1 stop6h 55mDelta
Deal found 11/19$333
This American Airlines deal was found by Cheapflights users on 11/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/512:50 pmONT - MSN
1 stop6h 45mAmerican Airlines
Mon 12/95:45 pmMSN - ONT
1 stop6h 18mAmerican Airlines
Deal found 11/20$338

Find flights from Ontario to Wisconsin within your budget

Customize your flight search to find flights from Ontario to Wisconsin 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioMinneapolis

ONT - MSP

ONTMSP

Ontario

Thu 12/5

8:56 am-5:36 pm

1 stop6h 40m

Minneapolis St Paul

Wed 12/11

6:00 am-11:44 pm

1 stop19h 44m

$109

OntarioChicago

ONT - ORD

ONTORD

Ontario

Thu 12/5

8:56 am-10:07 pm

1 stop11h 11m

Chicago O'Hare Intl

Mon 12/9

7:25 am-1:00 pm

1 stop7h 35m

$128

OntarioChicago

ONT - ORD

ONTORD

Ontario

Wed 12/18

10:39 pm-5:30 am

1 stop28h 51m

Chicago O'Hare Intl

Wed 12/25

6:00 am-8:06 am

2 stops28h 06m

$241

OntarioChicago

ONT - ORD

ONTORD

Ontario

Wed 1/22

7:00 am-5:38 pm

1 stop8h 38m

Chicago O'Hare Intl

Tue 1/28

11:47 am-6:37 pm

1 stop8h 50m

$246

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Mon 12/16

6:34 pm-7:00 pm

1 stop22h 26m

Madison Truax Field

Thu 12/19

11:44 am-11:59 pm

1 stop14h 15m

$248

OntarioChicago

ONT - ORD

ONTORD

Ontario

Wed 12/11

1:53 pm-11:47 pm

1 stop7h 54m

Chicago O'Hare Intl

Thu 1/9

3:35 pm-10:13 pm

1 stop8h 38m

$251

OntarioChicago

ONT - ORD

ONTORD

Ontario

Tue 2/4

6:00 am-2:12 pm

1 stop6h 12m

Chicago O'Hare Intl

Tue 2/18

7:20 pm-11:53 pm

1 stop6h 33m

$256

OntarioMinneapolis

ONT - MSP

ONTMSP

Ontario

Mon 1/13

6:00 am-11:55 pm

1 stop15h 55m

Minneapolis St Paul

Wed 1/15

8:00 am-5:04 pm

2 stops11h 04m

$267

OntarioChicago

ONT - ORD

ONTORD

Ontario

Sat 12/28

6:50 pm-5:54 am

1 stop9h 04m

Chicago O'Hare Intl

Thu 1/2

8:45 am-12:40 pm

1 stop5h 55m

$282

OntarioMinneapolis

ONT - MSP

ONTMSP

Ontario

Thu 12/12

8:55 pm-4:26 pm

2 stops17h 31m

Minneapolis St Paul

Tue 12/17

5:45 am-11:32 am

1 stop7h 47m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Ontario to Wisconsin

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

Travel insights for flights from Ontario to Wisconsin

Get recent, data-driven insights about flights from Ontario to Wisconsin including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $277). Flying from Ontario to Wisconsin in June is currently the most expensive (average of $361). 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 ONT to WI?

Find hourly flight availability from Ontario to Wisconsin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

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

Rainfall in Wisconsin by month

Plan your trip to Wisconsin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Wisconsin ranges from 1.4 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. January is typically the driest time to visit Wisconsin when rainfall is around 1.4 in.

Temperature in Wisconsin by month

Plan your trip to Wisconsin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Wisconsin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Wisconsin

Get insights into the airlines that provide service to Wisconsin. 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 Wisconsin. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown American Airlines, Frontier and United Airlines from Ontario to Wisconsin. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

WestJet
7.3
Good
2,811 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

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

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Wisconsin.

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

    $60 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $109 and $119, respectively.

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

    The most popular flight routes from Ontario to Wisconsin are Ontario - Chicago O'Hare Intl, Ontario - Minneapolis St Paul and Ontario - Milwaukee-Mitchell.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $277). Flying from Ontario to Wisconsin in June is currently the most expensive (average of $361). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Wisconsin

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Honolulu flights
Los Angeles to Seattle flights
Los Angeles to LaGuardia flights
Los Angeles to Miami flights
Los Angeles to San Francisco flights
San Francisco to Newark flights
Los Angeles to O'Hare Intl flights
Los Angeles to Orlando flights
San Francisco to Los Angeles flights
San Francisco to Seattle flights
San Francisco to Las Vegas flights
Los Angeles to Las Vegas flights
Los Angeles to Fort Lauderdale flights
San Francisco to LaGuardia flights
Santa Ana to Las Vegas flights
Santa Ana to Newark flights
Los Angeles to Boston flights
San Francisco to Honolulu flights
Burbank to Las Vegas flights
Ontario to Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
Los Angeles to San Jose flights
Los Angeles to Hobby flights
San Jose to Las Vegas flights
San Diego to John F Kennedy Intl flights
San Jose to Los Angeles flights
Los Angeles to Reagan-National flights
Los Angeles to Oakland flights
Los Angeles to Dulles Intl flights
Oakland to Los Angeles flights
Los Angeles to George Bush Intcntl flights
Los Angeles to Portland flights
San Francisco to Miami flights
Burbank to Newark flights
San Francisco to Ontario flights
Los Angeles to Atlanta flights
Oakland to Las Vegas flights
Ontario to San Francisco flights
Burbank to LaGuardia flights
Los Angeles to Baltimore flights
Ontario to Seattle flights
San Francisco to O'Hare Intl flights
Los Angeles to New Orleans flights
San Diego to Newark flights
San Francisco to Dulles Intl flights
Los Angeles to Salt Lake City flights

Top 5 airlines flying from Ontario to Wisconsin

Discover the top 5 airlines that operate flights from Ontario to Wisconsin. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$223FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$218Average$506FlexibilityNo cancel feeOn-time69%
DeltaCheapest$254Average$470FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$560FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$326Average$389FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines