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Cheap flights from Islip to Wisconsin from $95

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to Wisconsin departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip to Wisconsin

Cheap round-trip flights

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 16 - Thu, Oct 23
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 2 - Sun, Oct 5
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 30 - Sun, Nov 2
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 9 - Sun, Oct 12
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 2 - Sun, Oct 5
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 23 - Sat, Oct 25
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
Thu, Oct 30 - Sun, Nov 2
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
Fri, Dec 5 - Mon, Dec 8
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
Sat, Oct 4 - Tue, Oct 7

Frontier flights from Islip to Wisconsin

Our best Frontier deals on Islip to Wisconsin flight tickets
Frontier
Oct 16
ISP9:37 pmIslip Long Island
10h 57m
1 stop
ORD7:34 amChicago O'Hare Intl
Oct 23
ORD9:24 amChicago O'Hare Intl
10h 18m
1 stop
ISP8:42 pmIslip Long Island
$160
Find similar
Frontier
Oct 2
ISP11:40 amIslip Long Island
9h 04m
1 stop
ORD7:44 pmChicago O'Hare Intl
Oct 5
ORD8:49 pmChicago O'Hare Intl
12h 51m
1 stop
ISP10:40 amIslip Long Island
$168
Find similar
Frontier
Oct 30
ISP6:37 pmIslip Long Island
18h 49m
1 stop
ORD12:26 pmChicago O'Hare Intl
Nov 2
ORD7:05 amChicago O'Hare Intl
25h 04m
1 stop
ISP9:09 amIslip Long Island
$180
Find similar

Southwest flights from Islip to Wisconsin

Our best Southwest deals on Islip to Wisconsin flight tickets
Southwest
Oct 23
ISP5:30 amIslip Long Island
5h 05m
1 stop
MKE9:35 amMilwaukee-Mitchell
Oct 25
MKE2:05 pmMilwaukee-Mitchell
6h 30m
1 stop
ISP9:35 pmIslip Long Island
$239
Find similar
Southwest
Dec 5
ISP3:55 pmIslip Long Island
6h 50m
1 stop
MKE9:45 pmMilwaukee-Mitchell
Dec 8
MKE6:40 amMilwaukee-Mitchell
4h 35m
1 stop
ISP12:15 pmIslip Long Island
$255
Find similar
Southwest
Dec 5
ISP12:55 pmIslip Long Island
10h 05m
2 stops
MKE10:00 pmMilwaukee-Mitchell
Dec 8
MKE6:40 amMilwaukee-Mitchell
4h 35m
1 stop
ISP12:15 pmIslip Long Island
$260
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 18, 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

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 10/16

9:37 pm-7:34 am

1 stop10h 57m

Chicago O'Hare Intl

Thu 10/23

9:24 am-8:42 pm

1 stop10h 18m

$160

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 10/2

11:40 am-7:44 pm

1 stop9h 04m

Chicago O'Hare Intl

Sun 10/5

8:49 pm-10:40 am

1 stop12h 51m

$168

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 10/30

6:37 pm-12:26 pm

1 stop18h 49m

Chicago O'Hare Intl

Sun 11/2

7:05 am-9:09 am

1 stop25h 04m

$180

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 10/9

9:37 pm-7:34 am

1 stop10h 57m

Chicago O'Hare Intl

Sun 10/12

8:14 am-8:52 pm

1 stop11h 38m

$184

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 10/2

11:40 am-11:20 pm

2 stops12h 40m

Chicago O'Hare Intl

Sun 10/5

8:49 pm-10:40 am

1 stop12h 51m

$197

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Thu 10/23

5:30 am-9:35 am

1 stop5h 05m

Milwaukee-Mitchell

Sat 10/25

2:05 pm-9:35 pm

1 stop6h 30m

$239

IslipChicago

ISP - ORD

ISPORD

Islip Long Island

Thu 10/30

11:40 am-1:19 pm

2 stops26h 39m

Chicago O'Hare Intl

Sun 11/2

6:54 pm-10:37 am

1 stop14h 43m

$247

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Fri 12/5

3:55 pm-9:45 pm

1 stop6h 50m

Milwaukee-Mitchell

Mon 12/8

6:40 am-12:15 pm

1 stop4h 35m

$255

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Fri 12/5

12:55 pm-10:00 pm

2 stops10h 05m

Milwaukee-Mitchell

Mon 12/8

6:40 am-12:15 pm

1 stop4h 35m

$260

IslipMilwaukee

ISP - MKE

ISPMKE

Islip Long Island

Sat 10/4

11:50 am-7:00 pm

1 stop8h 10m

Milwaukee-Mitchell

Tue 10/7

7:35 am-12:25 pm

1 stop3h 50m

$294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Wisconsin from

How to get the cheapest flight ticket from Islip to Wisconsin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Islip Long Island to Wisconsin?

Frontier, Southwest, and Breeze Airways are the most popular carriers operating from Islip Long Island to Wisconsin

What airlines fly to Wisconsin?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Wisconsin from Islip according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Wisconsin. Keep in mind that there are 6 different airlines that fly to Wisconsin on a routine basis, so you have a few additional options to choose from.

Cheap Islip to Wisconsin flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Wisconsin

Direct flights

None
There are no direct flights from Islip to Wisconsin. There are no popular flight routes from Islip to Wisconsin.
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  • When did momondo last update prices for flights from Islip Long Island Airport to Wisconsin?

    Prices for flights from Islip Long Island Airport to Wisconsin were last updated today.

  • How many operators does momondo search for flights from Islip Long Island Airport to Wisconsin?

  • How old do you have to be to fly from Islip Long Island Airport to Wisconsin?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Wisconsin.

  • What documentation or ID do you need to fly to Wisconsin?

    The travel and health documents required for your trip to Wisconsin can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Wisconsin. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Islip to Wisconsin

Compare and see reviews for airlines that fly from Islip to Wisconsin with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $302Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Wisconsin?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Islip to Wisconsin. momondo saves you time and could save you money on your trip.

Can I find flights from Islip to Wisconsin with flexible booking policies on momondo?

Yes. All flights to Wisconsin from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Islip to Wisconsin?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Islip to Wisconsin.

I’m not ready to book a flight from Islip to Wisconsin right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Wisconsin, momondo offers a useful price alert feature which will track prices for flights to Wisconsin from Islip and alert you when they change.

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