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Cheap flights from Illinois to New York from $129

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 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:44 pm - 9:33 am
ORD
-
ISP
12h 49m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$252Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
7:44 pm - 9:33 am
ORD
-
ISP
12h 49m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$255Frontier
Tue, Sep 8 - Thu, Sep 17
Frontier Logo
7:44 pm - 9:53 am
ORD
-
ISP
13h 09m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$258Frontier
Wed, Sep 2 - Wed, Sep 9
Frontier Logo
7:44 pm - 9:33 am
ORD
-
ISP
12h 49m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$260Frontier
Tue, Sep 8 - Sun, Sep 13
Frontier Logo
7:44 pm - 9:53 am
ORD
-
ISP
13h 09m
1 stop
Frontier Logo
10:57 am - 11:08 pm
ISP
-
ORD
13h 11m
1 stop
$263Frontier
Thu, Sep 3 - Tue, Sep 8
Frontier Logo
7:44 pm - 9:53 am
ORD
-
ISP
13h 09m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$268Frontier
Thu, Sep 3 - Sun, Sep 13
Frontier Logo
7:44 pm - 9:33 am
ORD
-
ISP
12h 49m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$270Frontier
Tue, Sep 8 - Mon, Sep 14
Southwest Logo
6:25 am - 2:55 pm
STL
-
ISP
7h 30m
1 stop
Southwest Logo
6:45 am - 12:15 pm
ISP
-
STL
6h 30m
1 stop
$273Southwest
Tue, Sep 8 - Mon, Sep 14
Frontier Logo
6:05 am - 3:03 pm
ORD
-
ISP
7h 58m
1 stop
Frontier Logo
4:13 pm - 11:55 pm
ISP
-
ORD
8h 42m
1 stop
$273Frontier
Wed, Oct 21 - Thu, Oct 22
Southwest Logo
6:25 am - 2:55 pm
STL
-
ISP
7h 30m
1 stop
Southwest Logo
1:15 pm - 10:25 pm
ISP
-
STL
10h 10m
2 stops
$278Southwest
Tue, Sep 8 - Mon, Sep 14

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JetBlue flights from Illinois to Islip, New York

Our best JetBlue deals on Illinois to Islip, New York flight tickets
JetBlue
Sep 9
ORD3:00 pmChicago O'Hare Intl
7h 22m
1 stop
ISP11:22 pmIslip Long Island
Sep 16
ISP7:00 amIslip Long Island
8h 01m
1 stop
ORD2:01 pmChicago O'Hare Intl
$399
JetBlue
Sep 16
ORD3:00 pmChicago O'Hare Intl
7h 22m
1 stop
ISP11:22 pmIslip Long Island
Sep 21
ISP7:00 amIslip Long Island
8h 01m
1 stop
ORD2:01 pmChicago O'Hare Intl
$410
JetBlue
Sep 10
ORD3:00 pmChicago O'Hare Intl
7h 22m
1 stop
ISP11:22 pmIslip Long Island
Sep 16
ISP7:00 amIslip Long Island
8h 01m
1 stop
ORD2:01 pmChicago O'Hare Intl
$415

Frontier flights from Illinois to Islip, New York

Our best Frontier deals on Illinois to Islip, New York flight tickets
Frontier
Sep 8
ORD7:44 pmChicago O'Hare Intl
12h 49m
1 stop
ISP9:33 amIslip Long Island
Sep 15
ISP4:13 pmIslip Long Island
8h 42m
1 stop
ORD11:55 pmChicago O'Hare Intl
$252
Frontier
Sep 8
ORD7:44 pmChicago O'Hare Intl
12h 49m
1 stop
ISP9:33 amIslip Long Island
Sep 17
ISP4:13 pmIslip Long Island
8h 42m
1 stop
ORD11:55 pmChicago O'Hare Intl
$255
Frontier
Sep 2
ORD7:44 pmChicago O'Hare Intl
13h 09m
1 stop
ISP9:53 amIslip Long Island
Sep 9
ISP4:13 pmIslip Long Island
8h 42m
1 stop
ORD11:55 pmChicago O'Hare Intl
$258

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 July 3, 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

Cheapest round-trip

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Tue 9/8

7:44 pm-9:33 am

1 stop12h 49m

Islip Long Island

Tue 9/15

4:13 pm-11:55 pm

1 stop8h 42m

$252

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Tue 9/8

7:44 pm-9:33 am

1 stop12h 49m

Islip Long Island

Thu 9/17

4:13 pm-11:55 pm

1 stop8h 42m

$255

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 9/2

7:44 pm-9:53 am

1 stop13h 09m

Islip Long Island

Wed 9/9

4:13 pm-11:55 pm

1 stop8h 42m

$258

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Tue 9/8

7:44 pm-9:33 am

1 stop12h 49m

Islip Long Island

Sun 9/13

4:13 pm-11:55 pm

1 stop8h 42m

$260

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 9/3

7:44 pm-9:53 am

1 stop13h 09m

Islip Long Island

Tue 9/8

10:57 am-11:08 pm

1 stop13h 11m

$263

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 9/3

7:44 pm-9:53 am

1 stop13h 09m

Islip Long Island

Sun 9/13

4:13 pm-11:55 pm

1 stop8h 42m

$268

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Tue 9/8

7:44 pm-9:33 am

1 stop12h 49m

Islip Long Island

Mon 9/14

4:13 pm-11:55 pm

1 stop8h 42m

$270
Quickest round-trip

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Tue 9/8

6:25 am-2:55 pm

1 stop7h 30m

Islip Long Island

Mon 9/14

6:45 am-12:15 pm

1 stop6h 30m

$273

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 10/21

6:05 am-3:03 pm

1 stop7h 58m

Islip Long Island

Thu 10/22

4:13 pm-11:55 pm

1 stop8h 42m

$273

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Tue 9/8

6:25 am-2:55 pm

1 stop7h 30m

Islip Long Island

Mon 9/14

1:15 pm-10:25 pm

2 stops10h 10m

$278

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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?

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

What airlines fly to Islip, New York?

United Airlines, American Airlines and Delta 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 53% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 6 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 30m

Direct flights

None
The fastest flight from Illinois to Islip, New York takes 5h 30m
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

Frequently asked questions about flying from Illinois to Islip, New York

  • 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
Southampton
Sag Harbor
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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