$106 Find Cheap Flights from Islip to Wisconsin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Wisconsin departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Wisconsin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Wisconsin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Wisconsin, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to Wisconsin

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Milwaukee
Milwaukee1 stop$239
Madison
Madison2 stops$813
Minneapolis
Minneapolis1 stop$324
Milwaukee
Milwaukee1 stop$239
Madison
Madison2 stops$813
Minneapolis
Minneapolis1 stop$324

Book Cheap Islip to Wisconsin Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Wisconsin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Wisconsin

Thu, Oct 16 - Thu, Oct 23
Frontier Logo
9:37 pm - 7:34 amISP-ORD
10h 57m1 stop
Frontier Logo
9:24 am - 8:42 pmORD-ISP
10h 18m1 stop
$160Frontier
Find Deal
Thu, Oct 2 - Sun, Oct 5
Frontier Logo
11:40 am - 7:44 pmISP-ORD
9h 04m1 stop
Frontier Logo
8:49 pm - 10:40 amORD-ISP
12h 51m1 stop
$168Frontier
Find Deal
Thu, Oct 30 - Sun, Nov 2
Frontier Logo
6:37 pm - 12:26 pmISP-ORD
18h 49m1 stop
Frontier Logo
7:05 am - 9:09 amORD-ISP
25h 04m1 stop
$180Frontier
Find Deal
Thu, Oct 9 - Sun, Oct 12
Frontier Logo
9:37 pm - 7:34 amISP-ORD
10h 57m1 stop
Frontier Logo
8:14 am - 8:52 pmORD-ISP
11h 38m1 stop
$184Frontier
Find Deal
Thu, Oct 2 - Sun, Oct 5
Frontier Logo
11:40 am - 11:20 pmISP-ORD
12h 40m2 stops
Frontier Logo
8:49 pm - 10:40 amORD-ISP
12h 51m1 stop
$197Frontier
Find Deal
Thu, Oct 23 - Sat, Oct 25
Southwest Logo
5:30 am - 9:35 amISP-MKE
5h 05m1 stop
Southwest Logo
2:05 pm - 9:35 pmMKE-ISP
6h 30m1 stop
$239Southwest
Find Deal
Thu, Oct 30 - Sun, Nov 2
Multiple Airlines Logo
11:40 am - 1:19 pmISP-ORD
26h 39m2 stops
Multiple Airlines Logo
6:54 pm - 10:37 amORD-ISP
14h 43m1 stop
$247Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Southwest Logo
3:55 pm - 9:45 pmISP-MKE
6h 50m1 stop
Southwest Logo
6:40 am - 12:15 pmMKE-ISP
4h 35m1 stop
$255Southwest
Find Deal
Fri, Dec 5 - Mon, Dec 8
Southwest Logo
12:55 pm - 10:00 pmISP-MKE
10h 05m2 stops
Southwest Logo
6:40 am - 12:15 pmMKE-ISP
4h 35m1 stop
$260Southwest
Find Deal
Sat, Oct 4 - Tue, Oct 7
Southwest Logo
11:50 am - 7:00 pmISP-MKE
8h 10m1 stop
Southwest Logo
7:35 am - 12:25 pmMKE-ISP
3h 50m1 stop
$294Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for Islip to Wisconsin flights

Get data-powered insights and trends into flights from Islip to Wisconsin to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Islip to Wisconsin?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Islip to Wisconsin were found on Frontier ($160) and Southwest ($239).

Good to know

Low seasonApril
Cheapest flight$106
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Islip to Chicago

FAQs - booking Wisconsin flights

  • How does KAYAK find such low prices on flights from Islip to Wisconsin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Wisconsin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Wisconsin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Islip to Wisconsin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Wisconsin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Islip to Wisconsin with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Wisconsin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Islip to Wisconsin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Wisconsin?

    The cheapest time of day to fly to Wisconsin is generally in the morning, when round-trip flights cost $396 on average. The most expensive time of day to fly to Wisconsin is generally in the morning, which is peak travel time and where the average cost of a ticket is $396.

Reviews of the top airline flying from Islip to Wisconsin

 
See real verified KAYAK customer reviews for airlines flying from Islip to Wisconsin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Wisconsin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.0Food
7.5Entertainment
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Everything you need to know for your flight from Islip to Wisconsin

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.