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$109+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MKE
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Islip to Wisconsin

Keep the following information in mind while searching for Islip to Wisconsin flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$201
(Mytrip)

One-way from

$109
(Frontier)

Popular in

December

Cheapest in

April

Average price

$348
Provider with most accurate pricing for New York (NYC)-Milwaukee-Mitchell flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Milwaukee-Mitchell flights.
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From Islip Long Island to Wisconsin
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One-way flight from Islip Long Island to Wisconsin
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Highest demand for flights based on searches. 20% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 31, 2025.

This Mytrip deal was found by Cheapflights users on 3/30. 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.
Fri 5/96:48 pmISP - ORD
1 stop29h 44mFrontier
Mon 5/126:55 amORD - ISP
1 stop28h 51mFrontier
Deal found 3/30$201
This Frontier deal was found by Cheapflights users on 3/30. 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 4/49:00 amISP - MKE
1 stop7h 02mFrontier
Sun 4/67:53 pmMKE - ISP
1 stop11h 17mFrontier
Deal found 3/30$268
This Southwest deal was found by Cheapflights users on 3/31. 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 8/66:05 amISP - ORD
1 stop6h 45mSouthwest
Mon 8/1111:25 amORD - ISP
1 stop11h 00mSouthwest
Deal found 3/31$308
This Booking.com deal was found by Cheapflights users on 3/29. 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 3/319:04 pmISP - MSP
1 stop17h 38mFrontier
Thu 4/32:42 pmMSP - ISP
1 stop28h 27mFrontier
Deal found 3/29$328
This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/196:00 amISP - MSP
1 stop9h 51mMultiple Airlines
Wed 5/216:12 amMSP - ISP
1 stop17h 43mMultiple Airlines
Deal found 3/30$330
This Southwest deal was found by Cheapflights users on 3/30. 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 5/195:00 amISP - MSP
2 stops10h 05mSouthwest
Wed 5/2112:00 pmMSP - ISP
1 stop7h 20mSouthwest
Deal found 3/30$432
This Southwest deal was found by Cheapflights users on 3/30. 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 4/44:20 pmISP - MKE
1 stop8h 00mSouthwest
Sun 4/62:05 pmMKE - ISP
2 stops8h 50mSouthwest
Deal found 3/30$772
This Mytrip deal was found by Cheapflights users on 3/30. 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.
Fri 5/910:44 amISP - ORD
2 stops13h 45mMultiple Airlines
Mon 5/126:30 amORD - ISP
2 stops29h 45mMultiple Airlines
Deal found 3/30$776
This Mytrip deal was found by Cheapflights users on 3/30. 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.
Fri 4/48:25 pmISP - MKE
3 stops37h 44mMultiple Airlines
Sun 4/64:41 pmMKE - ISP
2 stops26h 04mMultiple Airlines
Deal found 3/30$799
This KAYAK deal was found by Cheapflights users on 3/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/101:55 pmISP - MSN
3 stops19h 06mBreeze Airways
Sat 6/1410:24 amMSN - ISP
2 stops46h 32mBreeze Airways
Deal found 3/31$1,245

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 March 31, 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

Fri 5/9

6:48 pm-11:32 pm

1 stop29h 44m

Chicago O'Hare Intl

Mon 5/12

6:55 am-12:46 pm

1 stop28h 51m

$201

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Fri 4/4

9:00 am-3:02 pm

1 stop7h 02m

Milwaukee-Mitchell

Sun 4/6

7:53 pm-8:10 am

1 stop11h 17m

$268

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Wed 8/6

6:05 am-11:50 am

1 stop6h 45m

Chicago O'Hare Intl

Mon 8/11

11:25 am-11:25 pm

1 stop11h 00m

$308

IslipMinneapolis

ISP - MSP

ISPMSP

Islip Long Island

Mon 5/19

6:00 am-2:51 pm

1 stop9h 51m

Minneapolis St Paul

Wed 5/21

6:12 am-12:55 am

1 stop17h 43m

$330

IslipMinneapolis

ISP - MSP

ISPMSP

Islip Long Island

Mon 5/19

5:00 am-2:05 pm

2 stops10h 05m

Minneapolis St Paul

Wed 5/21

12:00 pm-8:20 pm

1 stop7h 20m

$432

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Fri 4/4

4:20 pm-11:20 pm

1 stop8h 00m

Milwaukee-Mitchell

Sun 4/6

2:05 pm-11:55 pm

2 stops8h 50m

$772

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Fri 5/9

10:44 am-11:29 pm

2 stops13h 45m

Chicago O'Hare Intl

Mon 5/12

6:30 am-1:15 pm

2 stops29h 45m

$776

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Fri 4/4

8:25 pm-9:09 am

3 stops37h 44m

Milwaukee-Mitchell

Sun 4/6

4:41 pm-7:45 pm

2 stops26h 04m

$799

IslipMadison

ISP - MSN

ISPMSN

Islip Long Island

Tue 6/10

1:55 pm-8:01 am

3 stops19h 06m

Madison Truax Field

Sat 6/14

10:24 am-9:56 am

2 stops46h 32m

$1,245

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Fri 4/18

4:31 pm-12:36 am

1 stop9h 05m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 14 results
1
2

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, February is the cheapest month in which you can book a flight from Islip, New York to Wisconsin (average of $280). Flying from Islip, New York to Wisconsin in June is currently the most expensive (average of $376). 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 March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York 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 March 31, 2025.
Read through reviews of airlines operating flights from Islip to Wisconsin, such as Breeze Airways, Southwest and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
157 reviews

Entertainment

6.6

Boarding

8.3

Crew

8.8

Comfort

8.2

Overall

8.1

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
157 reviews
Breeze Airways
8.1
Very good
157 reviews

Entertainment

6.6

Boarding

8.3

Crew

8.8

Comfort

8.2

Overall

8.1

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,275 reviews
Breeze Airways
8.1
Very good
157 reviews

Entertainment

6.6

Boarding

8.3

Crew

8.8

Comfort

8.2

Overall

8.1

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,924 reviews
Breeze Airways
8.1
Very good
157 reviews

Entertainment

6.6

Boarding

8.3

Crew

8.8

Comfort

8.2

Overall

8.1

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
6.0
Okay
3,275 reviews
Breeze Airways
8.1
Very good
157 reviews

Entertainment

6.6

Boarding

8.3

Crew

8.8

Comfort

8.2

Overall

8.1

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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.

  • What are the cheapest airlines to fly from Islip, New York to Wisconsin one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $109. Users have also found prices from $152 and $181 on Southwest and JetBlue, respectively.

  • 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 - Madison Truax Field 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, February is the cheapest month in which you can book a flight from Islip, New York to Wisconsin (average of $280). Flying from Islip, New York to Wisconsin in June is currently the most expensive (average of $376). 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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