HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wisconsin

$98+ Cheap flights from Islip, NY (ISP) 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MKE
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip 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 Islip to Wisconsin

Cheapest flights from Islip to Wisconsin
Explore the most affordable flight options available from Islip to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This CheapOair deal was found by Cheapflights users on 12/17. 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.
Wed 12/315:27 pmISP - ORD
1 stop17h 51mFrontier
Fri 1/98:27 pmORD - ISP
1 stop21h 41mFrontier
Deal found 12/17$293
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amISP - ORD
1 stop29h 18mFrontier
Thu 1/158:51 pmORD - ISP
1 stop22h 18mFrontier
Deal found 12/15$312
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:27 pmISP - ORD
1 stop17h 51mFrontier
Sun 1/48:09 pmORD - ISP
1 stop16h 00mFrontier
Deal found 12/16$357
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Mon 12/228:35 pmISP - ORD
2 stops23h 17mMultiple Airlines
Wed 12/317:20 amORD - ISP
1 stop8h 17mMultiple Airlines
Deal found 12/16$419
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/315:27 pmISP - ORD
1 stop17h 51mMultiple Airlines
Sun 1/48:09 pmORD - ISP
2 stops16h 36mMultiple Airlines
Deal found 12/16$435
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/298:35 pmISP - ORD
1 stop13h 27mMultiple Airlines
Wed 12/317:20 amORD - ISP
1 stop8h 17mMultiple Airlines
Deal found 12/17$445
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2312:20 pmISP - ORD
1 stop22h 58mFrontier
Wed 12/3111:23 amORD - ISP
1 stop23h 02mFrontier
Deal found 12/16$463
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:27 pmISP - ORD
1 stop17h 51mFrontier
Tue 12/307:01 pmORD - ISP
1 stop20h 36mFrontier
Deal found 12/16$473
This Southwest deal was found by Cheapflights users on 12/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:55 pmISP - MKE
1 stop6h 50mSouthwest
Fri 1/26:10 amMKE - ISP
1 stop4h 45mSouthwest
Deal found 12/16$495
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Mon 12/228:35 pmISP - MKE
1 stop22h 51mFrontier
Sat 12/277:48 pmMKE - ISP
1 stop22h 52mFrontier
Deal found 12/16$513
This Southwest deal was found by Cheapflights users on 12/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:45 pmISP - MKE
2 stops9h 25mSouthwest
Sat 12/276:25 pmMKE - ISP
1 stop4h 30mSouthwest
Deal found 12/16$604
This Southwest deal was found by Cheapflights users on 12/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:20 amISP - MSP
1 stop8h 05mSouthwest
Mon 1/511:25 amMSP - ISP
1 stop4h 30mSouthwest
Deal found 12/15$708

Find flight deals from Islip to Wisconsin

Keep the following information in mind while searching for Islip to Wisconsin flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$163
(CheapOair)

One-way from

$98
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$542
Provider with most accurate pricing for New York (NYC)-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Milwaukee-Mitchell flights.
Search Deals
From Islip Long Island to Wisconsin
Search Deals
One-way flight from Islip Long Island to Wisconsin
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip 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 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Islip to Wisconsin that are best for you.

Fly from

Islip

Fly to

Wisconsin

Route

Depart

Return

Price

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Sat 2/21

8:23 pm-8:57 pm

1 stop25h 34m

Chicago O'Hare Intl

Tue 2/24

8:30 am-1:13 pm

1 stop27h 43m

$163

IslipMinneapolis

ISP - MSP

ISPMSP

Islip Long Island

Wed 2/25

2:03 pm-7:32 pm

1 stop30h 29m

Minneapolis St Paul

Sun 3/1

8:12 pm-7:38 am

1 stop10h 26m

$218

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Sun 2/22

8:21 pm-11:15 pm

1 stop27h 54m

Chicago O'Hare Intl

Fri 2/27

3:11 pm-11:06 am

1 stop18h 55m

$233

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 1/15

9:52 am-5:52 pm

1 stop9h 00m

Chicago O'Hare Intl

Thu 1/22

7:21 pm-6:40 pm

1 stop22h 19m

$241

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Sun 2/1

9:25 am-10:41 am

1 stop26h 16m

Chicago O'Hare Intl

Sat 2/14

8:15 am-7:48 am

1 stop22h 33m

$249

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 2/19

5:07 pm-9:40 pm

1 stop29h 33m

Chicago O'Hare Intl

Sun 2/22

1:17 pm-2:39 pm

1 stop24h 22m

$263

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Fri 1/23

7:33 pm-4:35 pm

1 stop22h 02m

Chicago O'Hare Intl

Sun 1/25

12:21 pm-6:48 pm

1 stop29h 27m

$283

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Wed 12/31

5:27 pm-10:18 am

1 stop17h 51m

Chicago O'Hare Intl

Fri 1/9

8:27 pm-7:08 pm

1 stop21h 41m

$293

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 1/29

7:43 pm-10:35 am

1 stop15h 52m

Chicago O'Hare Intl

Sat 1/31

9:25 am-8:40 am

1 stop22h 15m

$294

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 1/29

7:43 pm-10:35 am

1 stop15h 52m

Chicago O'Hare Intl

Sun 2/1

12:21 pm-6:48 pm

1 stop29h 27m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 25 results
1
2
3

Best time to book a flight from Islip to Wisconsin

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

What is the cheapest month to book a flight from Islip, New York to Wisconsin?

Currently, May is the cheapest month in which you can book a flight from Islip, New York to Wisconsin (average of $55). Flying from Islip, New York to Wisconsin in February is currently the most expensive (average of $232). 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 ISP to WI?

Find hourly flight availability from Islip 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 December 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 31% on flights from Islip, New York to Wisconsin by exploring options for tickets in the evening.

Related info for your journey

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

    For a flight from Islip to Wisconsin, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city.

  • How long is the flight from Islip, New York to Wisconsin?

    Departing from Islip, New York to Wisconsin will take you 5h 30m. Airlines will cover a distance of 1054 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Islip, New York to Wisconsin?

    Most travelers choose Islip Long Island - Chicago O'Hare Intl, Islip Long Island - Minneapolis St Paul or Islip Long Island - Milwaukee-Mitchell when deciding on the best route from Islip, New York to Wisconsin.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip 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 Islip, New York to Wisconsin?

    Currently, May is the cheapest month in which you can book a flight from Islip, New York to Wisconsin (average of $55). Flying from Islip, New York to Wisconsin in February is currently the most expensive (average of $232). 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 Islip to Wisconsin

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
LaGuardia to Miami flights
Newark to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to Orlando flights
Newark to West Palm Beach flights
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Orlando flights
Newark to Orlando flights
Newark to Los Angeles flights
Newark to Las Vegas flights
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Tampa flights
Newark to Tampa flights
LaGuardia to Tampa flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Hobby flights
LaGuardia to West Palm Beach flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to New Orleans flights
LaGuardia to Los Angeles flights
Newark to Sky Harbor Intl flights
LaGuardia to Atlanta flights
John F Kennedy Intl to Hobby flights
LaGuardia to Las Vegas flights
Newark to Hobby flights
Newark to New Orleans flights
John F Kennedy Intl to Seattle flights
Newark to Fort Myers flights
John F Kennedy Intl to Denver flights
LaGuardia to New Orleans flights
Newark to San Francisco flights
LaGuardia to Denver flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to Salt Lake City flights
Newark to Denver flights
John F Kennedy Intl to George Bush Intcntl flights
John F Kennedy Intl to Austin flights
Newark to Salt Lake City flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Fort Myers flights
LaGuardia to George Bush Intcntl flights

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.