HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$140+ Cheap flights from Wisconsin to Islip, NY (ISP)

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ISP
Jun 26 — Jul 31
Fri 6/26
Fri 7/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Wisconsin to Islip 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 Wisconsin to Islip

Cheapest flights from Wisconsin to Islip
Explore the most affordable flight options available from Wisconsin to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 27, 2026.

This Southwest deal was found by Cheapflights users on 5/26. 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.
Fri 7/106:45 pm
MKE
-
ISP
1 stop3h 55m
Southwest
Wed 7/224:40 pm
ISP
-
MKE
1 stop6h 45m
Southwest
Deal found 5/26$296
This Booking.com deal was found by Cheapflights users on 5/25. 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 6/244:59 pm
ORD
-
ISP
1 stop26h 58m
Frontier
Wed 7/19:52 pm
ISP
-
ORD
1 stop26h 27m
Frontier
Deal found 5/25$321
This Booking.com deal was found by Cheapflights users on 5/26. 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.
Thu 9/248:10 pm
MKE
-
ISP
1 stop12h 23m
Frontier
Sun 9/274:13 pm
ISP
-
MKE
1 stop28h 02m
Frontier
Deal found 5/26$321
This Southwest deal was found by Cheapflights users on 5/22. 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 8/193:05 pm
MKE
-
ISP
1 stop5h 00m
Southwest
Sat 8/223:15 pm
ISP
-
MKE
1 stop6h 20m
Southwest
Deal found 5/22$338
This Booking.com deal was found by Cheapflights users on 5/25. 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 6/224:59 pm
ORD
-
ISP
1 stop21h 57m
Frontier
Mon 6/299:52 pm
ISP
-
ORD
1 stop26h 27m
Frontier
Deal found 5/25$352
This Booking.com deal was found by Cheapflights users on 5/22. 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 8/195:30 pm
ORD
-
ISP
1 stop15h 33m
Frontier
Sat 8/2210:48 am
ISP
-
ORD
1 stop13h 26m
Frontier
Deal found 5/22$360
This Booking.com deal was found by Cheapflights users on 5/23. 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 6/174:59 pm
ORD
-
ISP
1 stop26h 58m
Frontier
Sat 6/209:52 pm
ISP
-
ORD
1 stop26h 27m
Frontier
Deal found 5/23$367
This Southwest deal was found by Cheapflights users on 5/25. 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 7/155:45 am
MSP
-
ISP
1 stop7h 00m
Southwest
Wed 7/228:55 am
ISP
-
MSP
1 stop7h 10m
Southwest
Deal found 5/25$367
This Expedia deal was found by Cheapflights users on 5/26. 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.
Fri 6/194:59 pm
ORD
-
ISP
1 stop26h 58m
Frontier
Sun 6/219:52 pm
ISP
-
ORD
1 stop26h 27m
Frontier
Deal found 5/26$368
This Booking.com deal was found by Cheapflights users on 5/22. 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.
Thu 6/184:59 pm
ORD
-
ISP
1 stop26h 58m
Frontier
Sun 6/219:52 pm
ISP
-
ORD
1 stop12h 29m
Frontier
Deal found 5/22$381
This Expedia deal was found by Cheapflights users on 5/26. 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.
Thu 7/165:13 pm
ORD
-
ISP
1 stop15h 40m
Frontier
Mon 7/2010:57 am
ISP
-
ORD
1 stop13h 13m
Frontier
Deal found 5/26$385
This Booking.com deal was found by Cheapflights users on 5/26. 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.
Tue 6/234:59 pm
ORD
-
ISP
1 stop26h 58m
Frontier
Tue 6/304:41 pm
ISP
-
ORD
1 stop7h 38m
Frontier
Deal found 5/26$388

Find flight deals from Wisconsin to Islip

Keep the following information in mind while searching for Wisconsin to Islip flight deals. Data was last updated May 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$296
(Southwest)

One-way from

$140
(Southwest)

Popular in

November

Cheapest in

January

Average price

$369
Provider with most accurate pricing for Milwaukee-Mitchell-New York (NYC) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-New York (NYC) flights.
Search Deals
From Wisconsin to Islip Long Island
Search Deals
One-way flight from Wisconsin to Islip Long Island
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wisconsin to Islip 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 May 27, 2026.
Use the filters below to find and compare flights from Wisconsin to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Wed 8/19

3:05 pm-9:05 pm

1 stop5h 00m

Islip Long Island

Sat 8/22

3:15 pm-8:35 pm

1 stop6h 20m

$338

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Mon 6/22

4:59 pm-3:56 pm

1 stop21h 57m

Islip Long Island

Mon 6/29

9:52 pm-11:19 pm

1 stop26h 27m

$352

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 6/17

4:59 pm-8:57 pm

1 stop26h 58m

Islip Long Island

Sat 6/20

9:52 pm-11:19 pm

1 stop26h 27m

$367

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Fri 7/10

12:25 pm-11:45 pm

2 stops10h 20m

Islip Long Island

Wed 7/22

2:55 pm-10:30 pm

2 stops8h 35m

$368

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 11/6

8:00 am-6:51 pm

1 stop9h 51m

Islip Long Island

Sun 11/8

4:13 pm-11:50 pm

1 stop8h 37m

$368

MinneapolisIslip

MSP - ISP

MSPISP

Minneapolis St Paul

Wed 7/15

5:25 am-1:45 pm

2 stops7h 20m

Islip Long Island

Wed 7/22

8:55 am-3:05 pm

1 stop7h 10m

$372

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 6/18

4:59 pm-8:57 pm

1 stop26h 58m

Islip Long Island

Sun 6/21

9:52 pm-9:21 am

1 stop12h 29m

$381
Quickest round-trip

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Thu 9/24

5:00 pm-10:05 pm

1 stop4h 05m

Islip Long Island

Sun 9/27

6:20 am-12:10 pm

2 stops6h 50m

$392

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Thu 7/16

6:45 pm-11:40 pm

1 stop3h 55m

Islip Long Island

Mon 7/20

5:50 pm-12:20 am

2 stops7h 30m

$392

MinneapolisIslip

MSP - ISP

MSPISP

Minneapolis St Paul

Fri 7/24

6:00 pm-11:40 pm

1 stop4h 40m

Islip Long Island

Tue 7/28

8:55 am-3:05 pm

1 stop7h 10m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

Showing 1-10 of 35 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from Wisconsin to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip 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 Islip
No data available for this route at this time. Please check back soon.

Related info for your journey

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

    If you book a flight to Islip from Wisconsin, you will be flying to Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

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

    Southwest and Frontier can get you from Wisconsin to Islip, New York in just under 5h. Your travel time can differ by up to 16h 57m. The distance between Wisconsin and Islip, New York is about 774 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular route from Wisconsin to Islip, New York is Chicago O'Hare Intl - Islip Long Island. You may also consider Minneapolis St Paul - Islip Long Island or Milwaukee-Mitchell - Islip Long Island.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Wisconsin to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

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 Wisconsin to Islip

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Newark flights
San Francisco to John F Kennedy Intl flights
San Francisco to LaGuardia flights
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
Dallas/Fort Worth to Newark flights
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to John F Kennedy Intl flights
Los Angeles to LaGuardia flights
Miami to LaGuardia flights
Orlando to Newark flights
Miami to Newark flights
Hobby to LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Newark flights
Seattle to John F Kennedy Intl flights
San Jose to John F Kennedy Intl flights
Ontario to John F Kennedy Intl flights
Fort Lauderdale to LaGuardia flights
Fort Lauderdale to Newark flights
Atlanta to John F Kennedy Intl flights
Seattle to Newark flights
Oakland to John F Kennedy Intl flights
Fort Lauderdale to John F Kennedy Intl flights
San Jose to Newark flights
Orlando to LaGuardia flights
Atlanta to Newark flights
Hobby to John F Kennedy Intl flights
Miami to John F Kennedy Intl flights
Atlanta to LaGuardia flights
Orlando to John F Kennedy Intl flights
George Bush Intcntl to LaGuardia flights
Denver to LaGuardia flights
George Bush Intcntl to John F Kennedy Intl flights
Tampa to Newark flights
Detroit to LaGuardia flights
Hobby to Newark flights
George Bush Intcntl to Newark flights
Detroit to John F Kennedy Intl flights
Austin to Newark flights
West Palm Beach to John F Kennedy Intl flights
Denver to Newark flights
Midway to Newark flights
Detroit to Newark flights
Raleigh to LaGuardia flights
Raleigh to John F Kennedy Intl flights
Denver to John F Kennedy Intl flights
Tampa to John F Kennedy Intl flights
Raleigh to Newark flights

Top airline flying from Wisconsin to Islip

Discover the top airline that operate flights from Wisconsin to Islip. 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 May 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$244Average$374FlexibilityNo 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.