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Cheap flights from Illinois to New York from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to New York departing on 2/27. 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 Illinois to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:15 am - 7:28 pm
ORD
-
ISP
10h 13m
1 stop
Frontier Logo
9:33 am - 3:52 pm
ISP
-
ORD
7h 19m
1 stop
$160Frontier
Sat, Feb 28 - Wed, Mar 4
Frontier Logo
8:15 am - 7:28 pm
ORD
-
ISP
10h 13m
1 stop
Frontier Logo
3:34 pm - 11:15 pm
ISP
-
ORD
8h 41m
1 stop
$181Frontier
Sat, Feb 28 - Mon, Mar 2
Frontier Logo
3:52 pm - 1:21 am
ORD
-
ISP
8h 29m
1 stop
Frontier Logo
8:36 pm - 8:17 am
ISP
-
ORD
12h 41m
1 stop
$202Frontier
Tue, Mar 31 - Sun, Apr 12
Frontier Logo
8:39 pm - 9:48 am
ORD
-
ISP
12h 09m
1 stop
Frontier Logo
1:22 pm - 11:38 pm
ISP
-
ORD
11h 16m
1 stop
$214Frontier
Fri, Mar 6 - Mon, Mar 9
Multiple Airlines Logo
10:25 am - 9:13 am
ORD
-
ISP
21h 48m
1 stop
Multiple Airlines Logo
4:07 pm - 7:59 am
ISP
-
ORD
16h 52m
1 stop
$217Multiple Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
10:44 am - 2:39 pm
ORD
-
ISP
26h 55m
1 stop
Multiple Airlines Logo
5:51 pm - 5:23 pm
ISP
-
ORD
24h 32m
2 stops
$220Multiple Airlines
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
10:25 am - 9:13 am
ORD
-
ISP
21h 48m
1 stop
Multiple Airlines Logo
4:07 pm - 7:59 am
ISP
-
ORD
16h 52m
1 stop
$232Multiple Airlines
Thu, Apr 23 - Sun, Apr 26
Southwest Logo
6:20 am - 4:00 pm
STL
-
ISP
8h 40m
1 stop
Southwest Logo
4:10 pm - 9:10 pm
ISP
-
STL
6h 00m
1 stop
$355Southwest
Sat, May 23 - Wed, May 27
Southwest Logo
2:05 pm - 11:20 pm
STL
-
ISP
8h 15m
2 stops
Southwest Logo
12:30 pm - 8:00 pm
ISP
-
STL
8h 30m
2 stops
$360Southwest
Sat, May 23 - Wed, May 27
Southwest Logo
5:00 am - 11:50 am
STL
-
ISP
5h 50m
1 stop
Southwest Logo
6:05 am - 10:50 am
ISP
-
STL
5h 45m
1 stop
$391Southwest
Fri, May 22 - Sun, May 24

Frontier flights from Illinois to Islip, New York

Our best Frontier deals on Illinois to Islip, New York flight tickets
Frontier
Feb 28
ORD8:15 amChicago O'Hare Intl
10h 13m
1 stop
ISP7:28 pmIslip Long Island
Mar 4
ISP9:33 amIslip Long Island
7h 19m
1 stop
ORD3:52 pmChicago O'Hare Intl
$160
Frontier
Feb 28
ORD8:15 amChicago O'Hare Intl
10h 13m
1 stop
ISP7:28 pmIslip Long Island
Mar 2
ISP3:34 pmIslip Long Island
8h 41m
1 stop
ORD11:15 pmChicago O'Hare Intl
$181
Frontier
Mar 31
ORD3:52 pmChicago O'Hare Intl
8h 29m
1 stop
ISP1:21 amIslip Long Island
Apr 12
ISP8:36 pmIslip Long Island
12h 41m
1 stop
ORD8:17 amChicago O'Hare Intl
$202

Southwest flights from Illinois to Islip, New York

Our best Southwest deals on Illinois to Islip, New York flight tickets
Southwest
Mar 10
ORD2:40 pmChicago O'Hare Intl
7h 10m
2 stops
ISP10:50 pmIslip Long Island
Mar 17
ISP12:20 pmIslip Long Island
10h 35m
2 stops
ORD9:55 pmChicago O'Hare Intl
$329
Southwest
Mar 10
ORD2:40 pmChicago O'Hare Intl
7h 10m
2 stops
ISP10:50 pmIslip Long Island
Mar 17
ISP6:10 amIslip Long Island
13h 25m
1 stop
ORD6:35 pmChicago O'Hare Intl
$330
Southwest
May 7
ORD6:00 amChicago O'Hare Intl
13h 25m
2 stops
ISP8:25 pmIslip Long Island
May 12
ISP12:30 pmIslip Long Island
10h 25m
2 stops
ORD9:55 pmChicago O'Hare Intl
$346

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Islip, New York 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 February 14, 2026.
Use the filters below to find and compare flights from Illinois to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sat 2/28

8:15 am-7:28 pm

1 stop10h 13m

Islip Long Island

Wed 3/4

9:33 am-3:52 pm

1 stop7h 19m

$160

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sat 2/28

8:15 am-7:28 pm

1 stop10h 13m

Islip Long Island

Mon 3/2

3:34 pm-11:15 pm

1 stop8h 41m

$181

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Tue 3/31

3:52 pm-1:21 am

1 stop8h 29m

Islip Long Island

Sun 4/12

8:36 pm-8:17 am

1 stop12h 41m

$202

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 3/6

8:39 pm-9:48 am

1 stop12h 09m

Islip Long Island

Mon 3/9

1:22 pm-11:38 pm

1 stop11h 16m

$214

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 5/14

10:25 am-9:13 am

1 stop21h 48m

Islip Long Island

Mon 5/18

4:07 pm-7:59 am

1 stop16h 52m

$217

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 2/25

10:44 am-2:39 pm

1 stop26h 55m

Islip Long Island

Sun 3/1

5:51 pm-5:23 pm

2 stops24h 32m

$220

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 4/23

10:25 am-9:13 am

1 stop21h 48m

Islip Long Island

Sun 4/26

4:07 pm-7:59 am

1 stop16h 52m

$232

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Sat 5/23

6:20 am-4:00 pm

1 stop8h 40m

Islip Long Island

Wed 5/27

4:10 pm-9:10 pm

1 stop6h 00m

$355

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Sat 5/23

2:05 pm-11:20 pm

2 stops8h 15m

Islip Long Island

Wed 5/27

12:30 pm-8:00 pm

2 stops8h 30m

$360

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Fri 5/22

5:00 am-11:50 am

1 stop5h 50m

Islip Long Island

Sun 5/24

6:05 am-10:50 am

1 stop5h 45m

$391

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 New York from

How to get the cheapest flight ticket from Illinois to Islip, New York

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 Illinois to Islip Long Island?

Frontier and Southwest are the most popular carriers operating from Illinois to Islip Long Island

What airlines fly to Islip, New York?

United Airlines, American Airlines and Spirit Airlines are the top three most popular airlines that fly to Islip, New York from Illinois according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Islip, New York

Fastest flight time

5h 50m

Direct flights

None
The fastest flight from Illinois to Islip, New York takes 5h 50m
There are no direct flights from Illinois to Islip, New York. There are no popular flight routes from Illinois to Islip, New York.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Islip Long Island Airport?

    Prices for flights from Illinois to Islip Long Island Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents required for your trip to Islip Long Island Airport 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 Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Islip for you.

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

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

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

momondo helps you find the best flight between Illinois and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Illinois to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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