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Cheap flights from Illinois to New York from $116

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 9/14. 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

Frontier Logo
6:09 pm - 10:37 amORD-ISP
15h 28m1 stop
Frontier Logo
8:48 pm - 5:04 pmISP-ORD
21h 16m1 stop
$235Frontier
Find Deal
Thu, Oct 9 - Sat, Oct 11
Frontier Logo
7:30 am - 8:06 pmORD-ISP
11h 36m1 stop
Frontier Logo
6:05 am - 6:41 pmISP-ORD
13h 36m1 stop
$238Frontier
Find Deal
Thu, Aug 28 - Sun, Aug 31
Frontier Logo
2:02 pm - 11:59 pmSTL-ISP
8h 57m1 stop
Frontier Logo
8:59 am - 2:21 pmISP-STL
6h 22m1 stop
$238Frontier
Find Deal
Thu, Aug 21 - Mon, Aug 25
Frontier Logo
7:30 am - 8:06 pmORD-ISP
11h 36m1 stop
Frontier Logo
7:33 pm - 6:41 pmISP-ORD
24h 08m1 stop
$244Frontier
Find Deal
Thu, Aug 28 - Sat, Aug 30
Frontier Logo
8:49 pm - 10:55 amORD-ISP
13h 06m1 stop
Frontier Logo
11:25 am - 7:44 pmISP-ORD
9h 19m1 stop
$245Frontier
Find Deal
Fri, Sep 19 - Sun, Sep 28
Frontier Logo
9:32 am - 1:59 pmORD-ISP
27h 27m1 stop
Frontier Logo
6:05 am - 1:33 pmISP-ORD
32h 28m2 stops
$261Frontier
Find Deal
Fri, Aug 22 - Tue, Aug 26
Southwest Logo
1:50 pm - 10:05 pmORD-ISP
7h 15m1 stop
Southwest Logo
6:00 am - 11:50 amISP-ORD
6h 50m1 stop
$272Southwest
Find Deal
Wed, Sep 17 - Sun, Sep 21
Southwest Logo
11:25 am - 10:05 pmORD-ISP
9h 40m2 stops
Southwest Logo
6:00 am - 11:50 amISP-ORD
6h 50m1 stop
$277Southwest
Find Deal
Wed, Sep 17 - Sun, Sep 21
Southwest Logo
1:50 pm - 10:05 pmORD-ISP
7h 15m1 stop
Southwest Logo
5:40 am - 11:50 amISP-ORD
7h 10m1 stop
$304Southwest
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Wed, Sep 17 - Sat, Sep 20
Logo
6:56 am - 11:59 pmORD-ISP
16h 03m1 stop
Logo
7:43 pm - 6:41 pmISP-ORD
23h 58m1 stop
$322
Find Deal
Thu, Aug 21 - Sun, Aug 24

Frontier flights from Illinois to Islip, New York

Our best Frontier deals on Illinois to Islip, New York flight tickets
Frontier
Oct 9
ORD6:09 pmChicago O'Hare Intl
15h 28m
1 stop
ISP10:37 amIslip Long Island
Oct 11
ISP8:48 pmIslip Long Island
21h 16m
1 stop
ORD5:04 pmChicago O'Hare Intl
$235
Find similar
Frontier
Aug 21
STL2:02 pmLambert-St Louis
8h 57m
1 stop
ISP11:59 pmIslip Long Island
Aug 25
ISP8:59 amIslip Long Island
6h 22m
1 stop
STL2:21 pmLambert-St Louis
$238
Find similar
Frontier
Aug 28
ORD7:30 amChicago O'Hare Intl
11h 36m
1 stop
ISP8:06 pmIslip Long Island
Aug 30
ISP7:33 pmIslip Long Island
24h 08m
1 stop
ORD6:41 pmChicago O'Hare Intl
$244
Find similar

Southwest flights from Illinois to Islip, New York

Our best Southwest deals on Illinois to Islip, New York flight tickets
Southwest
Sep 17
ORD1:50 pmChicago O'Hare Intl
7h 15m
1 stop
ISP10:05 pmIslip Long Island
Sep 21
ISP6:00 amIslip Long Island
6h 50m
1 stop
ORD11:50 amChicago O'Hare Intl
$272
Find similar
Southwest
Sep 17
ORD11:25 amChicago O'Hare Intl
9h 40m
2 stops
ISP10:05 pmIslip Long Island
Sep 21
ISP6:00 amIslip Long Island
6h 50m
1 stop
ORD11:50 amChicago O'Hare Intl
$277
Find similar
Southwest
Sep 17
ORD1:50 pmChicago O'Hare Intl
7h 15m
1 stop
ISP10:05 pmIslip Long Island
Sep 20
ISP5:40 amIslip Long Island
7h 10m
1 stop
ORD11:50 amChicago O'Hare Intl
$304
Find similar

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 August 7, 2025.
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

Thu 10/9

6:09 pm-10:37 am

1 stop15h 28m

Islip Long Island

Sat 10/11

8:48 pm-5:04 pm

1 stop21h 16m

$235

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 8/28

7:30 am-8:06 pm

1 stop11h 36m

Islip Long Island

Sun 8/31

6:05 am-6:41 pm

1 stop13h 36m

$238

St. LouisIslip

STL - ISP

STLISP

Lambert-St Louis

Thu 8/21

2:02 pm-11:59 pm

1 stop8h 57m

Islip Long Island

Mon 8/25

8:59 am-2:21 pm

1 stop6h 22m

$238

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 8/28

7:30 am-8:06 pm

1 stop11h 36m

Islip Long Island

Sat 8/30

7:33 pm-6:41 pm

1 stop24h 08m

$244

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 9/19

8:49 pm-10:55 am

1 stop13h 06m

Islip Long Island

Sun 9/28

11:25 am-7:44 pm

1 stop9h 19m

$245

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 8/22

9:32 am-1:59 pm

1 stop27h 27m

Islip Long Island

Tue 8/26

6:05 am-1:33 pm

2 stops32h 28m

$261

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 9/17

1:50 pm-10:05 pm

1 stop7h 15m

Islip Long Island

Sun 9/21

6:00 am-11:50 am

1 stop6h 50m

$272

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 9/17

11:25 am-10:05 pm

2 stops9h 40m

Islip Long Island

Sun 9/21

6:00 am-11:50 am

1 stop6h 50m

$277

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Wed 9/17

1:50 pm-10:05 pm

1 stop7h 15m

Islip Long Island

Sat 9/20

5:40 am-11:50 am

1 stop7h 10m

$304

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Thu 8/21

6:56 am-11:59 pm

1 stop16h 03m

Islip Long Island

Sun 8/24

7:43 pm-6:41 pm

1 stop23h 58m

$322

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 day to depart on your flight to Islip, New York?

The cheapest day to depart from Illinois to Islip, New York is on a Thursday. Travelers who choose to depart for Islip, New York on a Thursday will often find tickets for as low as $223. The most expensive day to fly to Islip, New York is Wednesday, with ticket prices averaging around $416.

What is the cheapest time of day to depart on your flight to Islip, New York?

Flying to Islip, New York from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $141 when looking at flights departing at noon. Flights to Islip, New York are more costly in the morning, with an average ticket price of $369. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Best Price Found

$116

Fastest flight time

6h 15m

Direct flights

None

Airports in Islip, New York

1 airport
The best one-way flight to Islip, New York from Illinois in the past 72 hours is $116. The best round-trip flight deal from Illinois to Islip, New York found on momondo in the last 72 hours is $235.
The fastest flight from Illinois to Islip, New York takes 6h 15m
There are no direct flights from Illinois to Islip, New York. Popular non-direct routes for this connection are Lambert-St Louis Airport - Islip Long Island Airport and Chicago O'Hare Intl Airport - Islip Long Island Airport.
There is 1 airport near Islip, New York: Islip Long Island (ISP)
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.

Best airlines flying from Illinois to Islip, New York

Compare and see reviews for airlines that fly from Illinois to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $254Free CancellationRating
8.0
4,247 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
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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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