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 36% 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.

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

Frontier is the most popular carrier operating from Illinois to Islip Long Island

How long does it take to fly to Islip, New York?

The flight from Illinois to Islip, New York depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to New York John F Kennedy Intl Airport (the most popular airport in Islip, New York), then the flight time is 3h 12m on average. If you fly from Peoria (another popular airport in Illinois) to New York John F Kennedy Intl Airport, then the average flight time is 4h 19m.

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?

As of November 2025, there is 1 operator available to choose from 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.

$61 Cheap Flights from Illinois to Islip in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Illinois to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:26 pm - 10:20 amORD-ISP

18h 54m1 stop

6:00 am - 10:18 amISP-ORD

29h 18m1 stop

$209Frontier

Find Deal

Sat, Dec 13 - Wed, Dec 17

2:26 pm - 10:20 amORD-ISP

18h 54m1 stop

6:00 am - 10:18 amISP-ORD

29h 18m1 stop

$210Frontier

Find Deal

Sat, Dec 13 - Wed, Dec 17

2:26 pm - 10:20 amORD-ISP

18h 54m1 stop

10:19 am - 1:31 pmISP-ORD

28h 12m1 stop

$220Frontier

Find Deal

Sat, Dec 6 - Sat, Dec 13

2:26 pm - 10:20 amORD-ISP

18h 54m1 stop

12:37 pm - 12:09 amISP-ORD

12h 32m2 stops

$222Multiple Airlines

Find Deal

Sat, Dec 13 - Wed, Dec 17

2:26 pm - 10:20 amORD-ISP

18h 54m1 stop

12:37 pm - 12:09 amISP-ORD

12h 32m2 stops

$223Multiple Airlines

Find Deal

Sat, Dec 13 - Wed, Dec 17

12:55 pm - 8:02 amORD-ISP

18h 07m1 stop

6:00 am - 1:03 pmISP-ORD

32h 03m2 stops

$240Multiple Airlines

Find Deal

Sun, Nov 23 - Wed, Nov 26

12:15 pm - 11:59 pmORD-ISP

10h 44m1 stop

1:15 pm - 9:51 pmISP-ORD

9h 36m1 stop

$250Frontier

Find Deal

Fri, Dec 5 - Thu, Dec 11

2:40 pm - 11:30 pmORD-ISP

7h 50m2 stops

6:05 am - 4:05 pmISP-ORD

11h 00m2 stops

$397Southwest

Find Deal

Fri, May 8 - Sun, May 10

7:35 pm - 9:20 amORD-ISP

12h 45m1 stop

6:05 am - 4:05 pmISP-ORD

11h 00m2 stops

$398Southwest

Find Deal

Fri, May 8 - Sun, May 10

7:35 pm - 9:20 amORD-ISP

12h 45m1 stop

1:50 pm - 9:55 pmISP-ORD

9h 05m1 stop

$432Southwest

Find Deal

Fri, May 8 - Sun, May 10

Frontier flights from Illinois to Islip, New York

Our best Frontier deals on Illinois to Islip, New York flight tickets

Frontier

Dec 13

ORD2:26 pmChicago O'Hare Intl

18h 54m

1 stop

ISP10:20 amIslip Long Island

Dec 17

ISP6:00 amIslip Long Island

29h 18m

1 stop

ORD10:18 amChicago O'Hare Intl

$209

Find similar

Frontier

Dec 13

ORD2:26 pmChicago O'Hare Intl

18h 54m

1 stop

ISP10:20 amIslip Long Island

Dec 17

ISP6:00 amIslip Long Island

29h 18m

1 stop

ORD10:18 amChicago O'Hare Intl

$210

Find similar

Frontier

Dec 6

ORD2:26 pmChicago O'Hare Intl

18h 54m

1 stop

ISP10:20 amIslip Long Island

Dec 13

ISP10:19 amIslip Long Island

28h 12m

1 stop

ORD1:31 pmChicago O'Hare Intl

$220

Find similar

Southwest flights from Illinois to Islip, New York

Our best Southwest deals on Illinois to Islip, New York flight tickets

Southwest

May 8

ORD2:40 pmChicago O'Hare Intl

7h 50m

2 stops

ISP11:30 pmIslip Long Island

May 10

ISP6:05 amIslip Long Island

11h 00m

2 stops

ORD4:05 pmChicago O'Hare Intl

$397

Find similar

Southwest

May 8

ORD7:35 pmChicago O'Hare Intl

12h 45m

1 stop

ISP9:20 amIslip Long Island

May 10

ISP6:05 amIslip Long Island

11h 00m

2 stops

ORD4:05 pmChicago O'Hare Intl

$398

Find similar

Southwest

May 8

ORD7:35 pmChicago O'Hare Intl

12h 45m

1 stop

ISP9:20 amIslip Long Island

May 10

ISP1:50 pmIslip Long Island

9h 05m

1 stop

ORD9:55 pmChicago O'Hare Intl

$432

Find similar

momondo Fare Finder

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 12/13

2:26 pm-10:20 am

1 stop18h 54m

Islip Long Island

Wed 12/17

6:00 am-10:18 am

1 stop29h 18m

$209

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sat 12/13

2:26 pm-10:20 am

1 stop18h 54m

Islip Long Island

Wed 12/17

6:00 am-10:18 am

1 stop29h 18m

$210

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sat 12/6

2:26 pm-10:20 am

1 stop18h 54m

Islip Long Island

Sat 12/13

10:19 am-1:31 pm

1 stop28h 12m

$220

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sat 12/13

2:26 pm-10:20 am

1 stop18h 54m

Islip Long Island

Wed 12/17

12:37 pm-12:09 am

2 stops12h 32m

$222

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sat 12/13

2:26 pm-10:20 am

1 stop18h 54m

Islip Long Island

Wed 12/17

12:37 pm-12:09 am

2 stops12h 32m

$223

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Sun 11/23

12:55 pm-8:02 am

1 stop18h 07m

Islip Long Island

Wed 11/26

6:00 am-1:03 pm

2 stops32h 03m

$240

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 12/5

12:15 pm-11:59 pm

1 stop10h 44m

Islip Long Island

Thu 12/11

1:15 pm-9:51 pm

1 stop9h 36m

$250

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 5/8

2:40 pm-11:30 pm

2 stops7h 50m

Islip Long Island

Sun 5/10

6:05 am-4:05 pm

2 stops11h 00m

$397

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 5/8

7:35 pm-9:20 am

1 stop12h 45m

Islip Long Island

Sun 5/10

6:05 am-4:05 pm

2 stops11h 00m

$398

ChicagoIslip

ORD - ISP

ORDISP

Chicago O'Hare Intl

Fri 5/8

7:35 pm-9:20 am

1 stop12h 45m

Islip Long Island

Sun 5/10

1:50 pm-9:55 pm

1 stop9h 05m

$432

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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

Direct flights	None

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?
As of November 2025, there is 1 operator available to choose from 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.

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.