HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Islip (ISP) to Illinois from $70

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ISP — ORD
may. 21 — may. 281
From?
To?
mar. 5/21
mar. 5/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from Islip, New York to Illinois?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 56 days in advance, which can save you up to 98% on flights from Islip, New York to Illinois compared to booking the week you need them. Waiting 56 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $278. For sooner than that we have options available in the next 3 days from $423.

What is the cheapest month to fly from Islip, New York to Illinois?

Our data shows that February tends to be the cheapest month to fly to Illinois from Islip, New York. Users have commonly found prices around $261 for the month, but tickets can be as low as $81. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Islip, New York to Illinois (ISP - IL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Illinois as you normally would.

Cheap Frontier flights from Islip to Illinois

Explore cheap flight options specifically provided by Frontier for the route between Islip and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
vie. 6/74:46 pmISP - ORD
1 stop9h 22mFrontier
mar. 9/35:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/14$149
jue. 6/1311:37 amISP - ORD
1 stop6h 10mFrontier
jue. 6/137:13 pmORD - ISP
1 stop11h 27mFrontier
Deal found 5/15$150
lun. 6/174:46 pmISP - ORD
1 stop9h 22mFrontier
vie. 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$154
vie. 8/165:25 pmISP - ORD
1 stop8h 34mFrontier
dom. 8/185:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/15$156
vie. 6/144:46 pmISP - ORD
1 stop9h 22mFrontier
vie. 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$157
vie. 8/165:25 pmISP - ORD
1 stop8h 34mFrontier
lun. 8/195:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/15$161
mié. 6/124:46 pmISP - ORD
1 stop9h 22mFrontier
mié. 6/195:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$164
lun. 6/34:49 pmISP - STL
1 stop15h 19mFrontier
jue. 6/67:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/15$166
jue. 5/304:49 pmISP - ORD
1 stop9h 19mFrontier
dom. 6/26:25 amORD - ISP
1 stop10h 41mFrontier
Deal found 5/14$168

Cheap Islip to Illinois flights in May & June 2024

Find cheap flight options from Islip to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on mayo 16, 2024.
vie. 6/74:46 pmISP - ORD
1 stop9h 22mFrontier
mar. 9/35:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/14$149
jue. 6/1311:37 amISP - ORD
1 stop6h 10mFrontier
jue. 6/137:13 pmORD - ISP
1 stop11h 27mFrontier
Deal found 5/15$150
jue. 6/2010:23 pmISP - STL
1 stop9h 44mFrontier
dom. 6/237:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/16$154
lun. 6/174:46 pmISP - ORD
1 stop9h 22mFrontier
vie. 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$154
vie. 6/144:46 pmISP - ORD
1 stop9h 22mFrontier
vie. 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$157
mié. 6/124:46 pmISP - ORD
1 stop9h 22mFrontier
mié. 6/195:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$164
lun. 6/34:49 pmISP - STL
1 stop15h 19mFrontier
jue. 6/67:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/15$166
jue. 5/304:49 pmISP - ORD
1 stop9h 19mFrontier
dom. 6/26:25 amORD - ISP
1 stop10h 41mFrontier
Deal found 5/14$168
mar. 6/44:49 pmISP - ORD
1 stop9h 19mFrontier
mié. 6/55:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$189

Islip to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Islip and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
vie. 6/74:46 pmISP - ORD
1 stop9h 22mFrontier
mar. 9/35:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/14$149
jue. 6/1311:37 amISP - ORD
1 stop6h 10mFrontier
jue. 6/137:13 pmORD - ISP
1 stop11h 27mFrontier
Deal found 5/15$150
jue. 6/2010:23 pmISP - STL
1 stop9h 44mFrontier
dom. 6/237:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/16$154
lun. 6/174:46 pmISP - ORD
1 stop9h 22mFrontier
vie. 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$154
vie. 8/165:25 pmISP - ORD
1 stop8h 34mFrontier
dom. 8/185:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/15$156
vie. 6/144:46 pmISP - ORD
1 stop9h 22mFrontier
vie. 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$157
vie. 8/165:25 pmISP - ORD
1 stop8h 34mFrontier
lun. 8/195:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/15$161
mié. 6/124:46 pmISP - ORD
1 stop9h 22mFrontier
mié. 6/195:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/15$164
lun. 6/34:49 pmISP - STL
1 stop15h 19mFrontier
jue. 6/67:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/15$166

Islip to Illinois flights leaving soon

Find last-minute flight options from Islip to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
dom. 5/265:19 pmISP - ORD
1 stop8h 49mFrontier
mié. 5/295:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/15$220
sáb. 5/254:49 pmISP - ORD
1 stop9h 09mFrontier
dom. 5/267:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/15$262
vie. 5/244:49 pmISP - ORD
1 stop9h 19mFrontier
dom. 5/267:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/15$300
jue. 5/238:27 pmISP - ORD
1 stop29h 41mFrontier
dom. 5/265:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/15$345
vie. 5/244:49 pmISP - ORD
1 stop9h 19mFrontier
lun. 5/275:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/15$548

One-way flights to Illinois from Islip

Search for one-way flight options from Islip to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
sáb. 6/14:49 pmISP - ORD
1 stop9h 09mFrontier
Deal found 5/15$70
lun. 6/174:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/16$75
vie. 8/165:25 pmISP - ORD
1 stop8h 34mFrontier
Deal found 5/15$78
vie. 6/144:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/15$79
vie. 5/314:49 pmISP - ORD
1 stop9h 19mFrontier
Deal found 5/14$99
dom. 6/2310:23 pmISP - ORD
1 stop27h 45mFrontier
Deal found 5/15$109
lun. 6/244:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/15$119
mié. 5/224:49 pmISP - ORD
1 stop9h 19mFrontier
Deal found 5/14$124
mié. 8/74:52 pmISP - ORD
1 stop9h 07mFrontier
Deal found 5/15$125

Find flights from Islip to Illinois within your budget

Customize your flight search to find flights from Islip to Illinois 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, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$149 - $166

Route

Depart

Return

Price

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

vie. 6/7

1 stop9h 22m

Chicago O'Hare Intl

mar. 9/3

1 stop13h 30m

$149

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

jue. 6/13

1 stop6h 10m

Chicago O'Hare Intl

jue. 6/13

1 stop11h 27m

$150

Islip Long IslandLambert-St Louis

ISP - STL

ISPSTL

Islip Long Island

jue. 6/20

1 stop9h 44m

Lambert-St Louis

dom. 6/23

1 stop10h 56m

$154

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

lun. 6/17

1 stop9h 22m

Chicago O'Hare Intl

vie. 6/21

1 stop12h 42m

$154

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

vie. 8/16

1 stop8h 34m

Chicago O'Hare Intl

dom. 8/18

1 stop13h 30m

$156

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

vie. 6/14

1 stop9h 22m

Chicago O'Hare Intl

vie. 6/21

1 stop12h 42m

$157

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

vie. 8/16

1 stop8h 34m

Chicago O'Hare Intl

lun. 8/19

1 stop13h 30m

$161

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

mié. 6/12

1 stop9h 22m

Chicago O'Hare Intl

mié. 6/19

1 stop12h 42m

$164

Islip Long IslandLambert-St Louis

ISP - STL

ISPSTL

Islip Long Island

lun. 6/3

1 stop15h 19m

Lambert-St Louis

jue. 6/6

1 stop10h 56m

$166

Flights are sorted by cheapest first

Deals found on 5/14

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated mayo 16, 2024.
Frontier
6.3
Okay
4,060 reviews
Check prices

Entertainment

4.9

Boarding

6.6

Food

5.2

Crew

7.1

Comfort

5.8

Overall

6.3

Reviews

1 / 10

Inexpensive flight, and everything is an extra charge, so okay, fair deal!

Frontier
6.3
Okay
4,060 reviews
Frontier
6.3
Okay
4,060 reviews
Check prices

Entertainment

4.9

Boarding

6.6

Food

5.2

Crew

7.1

Comfort

5.8

Overall

6.3

Reviews

1 / 10

Inexpensive flight, and everything is an extra charge, so okay, fair deal!

Related info for your journey

Find useful and relevant information for your journey from Islip to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to Illinois?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Illinois.

  • Can I find flights from Islip, New York to Illinois for under $200 on Cheapflights?

    Yes, there are multiple flights from Islip, New York to Illinois for under $200. The cheapest flight booked recently is on Frontier for just $149, but on average you can expect to pay $192.

  • Are there last-minute flights available from Islip, New York to Illinois for under $300?

    There are currently 5+ open flights from Islip, New York to Illinois within the next 7 days for less than $300.

  • What are the most popular routes from Islip, New York to Illinois?

    Most travelers choose Islip Long Island - Chicago O'Hare Intl, Islip Long Island - Lambert-St Louis or Islip Long Island - Decatur Arpt when deciding on the best route from Islip, New York to Illinois.

  • What does ISP to ORD mean?

    Islip Long Island Airport is ISP and Chicago O'Hare Intl Airport is ORD. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Islip to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Islip to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Islip to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Islip to Illinois that include hotel bookings?

    Yes. In addition to deals on Islip to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Illinois.

  • Can I find deals for business class flights from Islip to Illinois?

    Yes. Cheapflights offers flight deals from Islip to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Islip to Illinois that allow pets onboard?

    Many airlines flying from Islip to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Islip to Illinois?

    Yes, you can often find last-minute deals on Islip to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Islip, New York to Illinois flight deals updated?

    The Islip, New York to Illinois flight deals you see on this page were last updated on 5/16.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Illinois
See prices for flight routes from nearby airports that may be better suited for you.

Newark to Fort Lauderdale flights
Newark to Los Angeles flights
LaGuardia to Orlando flights
Newark to Las Vegas flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
Newark to Orlando flights
LaGuardia to Miami flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
John F Kennedy Intl to Los Angeles flights
Newark to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Seattle flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Orlando flights
Newark to Atlanta flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Atlanta flights
Newark to San Francisco flights
Newark to Seattle flights
LaGuardia to Las Vegas flights
LaGuardia to Los Angeles flights
Newark to Tampa flights
Newark to Hobby flights
John F Kennedy Intl to West Palm Beach flights
LaGuardia to Tampa flights
LaGuardia to Hobby flights
John F Kennedy Intl to Denver flights
Newark to West Palm Beach flights
LaGuardia to Denver flights
LaGuardia to San Francisco flights
LaGuardia to Seattle flights
John F Kennedy Intl to Atlanta flights
Newark to Burbank flights
Newark to Nashville flights
Newark to Denver flights
Newark to George Bush Intcntl flights
Newark to Midway flights
John F Kennedy Intl to Ontario flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to New Orleans flights
LaGuardia to George Bush Intcntl flights
Newark to Raleigh flights
John F Kennedy Intl to Midway flights
John F Kennedy Intl to Austin flights
Chicago to Minneapolis flights
Florida to The Bahamas flights
Boston to Washington, D.C. flights
Los Angeles to Vancouver flights
Cleveland to New York flights
Chicago to Denver flights
Houston to Denver flights
Boston to Fort Myers flights
Seattle to San Diego flights
Orlando to Tampa flights
Houston to New York flights
Islip, New York to Indiana flights

Search flights from Islip to Illinois by cabin class

Find flights from Islip to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Montes Claros
Flights to Girona Costa Brava
Flights to Naxos
Flights to Bourgas
Flights to Hyannis Barnstable
Flights to Samos
Flights to Reggio Calabria Tito Menniti
Flights to Devils Lake
Flights to Ningbo Lishe Intl
Flights to Pellston Emmet County
Flights to Provincetown
Flights to Cortez Montezuma County
Flights to Ohrid
Flights to Oran Es Senia
Flights to Menorca/Mahon
Flights to Hakodate
Flights to Ordu/Giresun
Flights to Laayoune Hassan I
Flights to Cornwall Newquay
Flights to Melilla
Flights to Rennes St Jacques
Flights to Parikia Paros
Flights to Constanţa Mihail Kogalniceanu
Flights to Miyakojima Hirara

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Islip to Illinois?

When you search for this flight from Islip to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Islip to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Islip.

Can Cheapflights find flights from Islip to Illinois with no change fees?

Yes! Cheapflights helps users easily find flights from Islip to Illinois with no change fees.

Can Cheapflights notify me if prices for flights from Islip to Illinois become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines