$144+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
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
Keep the following information in mind while searching for Islip to Wisconsin flight deals. Data was last updated June 12, 2025.
Round-trip from | $249 (Southwest) |
|---|---|
One-way from | $144 (Frontier) |
Popular in | December |
Cheapest in | September |
Average price | $395 |
Find flight deals from Islip to Wisconsin
Cheapest flights from Islip to WisconsinExplore 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 June 12, 2025.
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 June 12, 2025.
This Southwest deal was found by Cheapflights users on 6/10. 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.
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/11. 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.
This Southwest deal was found by Cheapflights users on 6/10. 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.
This Frontier deal was found by Cheapflights users on 6/9. 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.
This Mytrip deal was found by Cheapflights users on 6/10. 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.
This Mytrip deal was found by Cheapflights users on 6/9. 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.
This Mytrip deal was found by Cheapflights users on 6/10. 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.
This Frontier deal was found by Cheapflights users on 6/10. 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.
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 June 12, 2025.
Use the filters below to find and compare flights from Islip to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
IslipMilwaukee
ISP - MKE
ISPMKE
Islip Long Island
Tue 7/8
4:40 pm-10:25 pm
1 stop6h 45m
Milwaukee-Mitchell
Tue 7/15
5:30 pm-10:55 pm
1 stop4h 25m
IslipChicago
ISP - ORD
ISPORD
Islip Long Island
Thu 9/4
11:27 am-12:57 pm
1 stop26h 30m
Chicago O'Hare Intl
Mon 9/8
6:10 am-10:37 am
1 stop27h 27m
IslipChicago
ISP - ORD
ISPORD
Islip Long Island
Thu 9/4
6:25 am-11:50 am
1 stop6h 25m
Chicago O'Hare Intl
Mon 9/8
6:00 am-4:30 pm
2 stops9h 30m
IslipMinneapolis
ISP - MSP
ISPMSP
Islip Long Island
Sat 9/13
3:40 pm-7:35 pm
1 stop4h 55m
Minneapolis St Paul
Tue 9/16
6:35 am-11:55 am
1 stop4h 20m
IslipMinneapolis
ISP - MSP
ISPMSP
Islip Long Island
Sat 8/30
7:33 pm-11:27 am
2 stops16h 54m
Minneapolis St Paul
Sun 8/31
9:34 pm-12:16 pm
2 stops13h 42m
IslipMinneapolis
ISP - MSP
ISPMSP
Islip Long Island
Fri 8/8
10:44 am-2:10 pm
2 stops28h 26m
Minneapolis St Paul
Sun 8/10
12:42 pm-3:19 pm
1 stop25h 37m
IslipChicago
ISP - ORD
ISPORD
Islip Long Island
Wed 6/25
2:55 pm-1:36 pm
2 stops23h 41m
Chicago O'Hare Intl
Sun 6/29
10:19 am-10:04 am
3 stops22h 45m
IslipMilwaukee
ISP - MKE
ISPMKE
Islip Long Island
Fri 7/4
10:36 am-6:09 pm
2 stops32h 33m
Milwaukee-Mitchell
Wed 7/9
2:51 pm-6:59 pm
3 stops27h 08m
IslipMadison
ISP - MSN
ISPMSN
Islip Long Island
Wed 6/25
8:21 pm-6:25 pm
2 stops23h 04m
Madison Truax Field
Sun 6/29
7:10 pm-1:06 pm
2 stops16h 56m
IslipChicago
ISP - ORD
ISPORD
Islip Long Island
Fri 7/4
8:21 pm-8:07 am
1 stop12h 46m
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.
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 June 12, 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 June 12, 2025.
Read through reviews of airlines operating flights from Islip to Wisconsin, such as Southwest and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
John,May 2025
PVD - BNA
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
John,May 2025
PVD - BNA
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
John,May 2025
PVD - BNA
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.
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Alternative routes for Islip to Wisconsin
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Islip to Wisconsin
Discover the top airline that operate flights from Islip 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 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$426 | FlexibilityNo cancel fee | On-time63% |