Cheap flights from Islip (ISP) to Illinois (IL)

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How to find the cheapest flight from
Islip (ISP) to Illinois

All the information you need to plan the best ISP to ORD flight in 2021: compare Islip to Illinois flight prices with the expected peak season, weather and rainfall in Illinois.
What is the cheapest month to fly from Islip, New York to Illinois?

Our data shows that August tends to be the cheapest month to fly to Illinois from Islip, New York. Users have commonly found prices around $182 for the month, but tickets can be as low as $64. Due to multiple factors, prepare for potentially higher prices in December.

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.

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 20 days in advance, which can save you up to 48% on flights from Islip, New York to Illinois compared to booking the week you need them. Waiting 20 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 $213. For sooner than that we have options available in the next 3 days from $293.

Cheap flights from Islip to Illinois in December, January 2022

The best prices found for ISP to Illinois flights for December, January
14 Dec - 15 Dec
$108pp
ISP
Islip Long Island
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island
13 Dec - 14 Dec
$121pp
ISP
Islip Long Island
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island
5 Dec - 8 Dec
$127pp
ISP
Islip Long Island
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island

Islip Long Island to Illinois 2022 flight deals

Cheap flights to Illinois from Islip found for this year
14 Dec - 15 Dec
$108pp
ISP
Islip Long Island
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island
13 Dec - 14 Dec
$121pp
ISP
Islip Long Island
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island
5 Dec - 8 Dec
$127pp
ISP
Islip Long Island
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island

Last minute flights from Islip to Illinois

Late deals on round-trip flights to Illinois from Islip, departing today and this week
6 Dec - 8 Dec
$136pp
ISP
Islip Long Island
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island
6 Dec - 9 Dec
$139pp
ISP
Islip Long Island
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
ISP
Islip Long Island
6 Dec - 9 Dec
$155pp
ISP
Islip Long Island
Frontier
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ISP
Islip Long Island

One-way flights to Illinois from Islip

The cheapest one-way flights from Islip to Illinois
8:59 am - 7:31 pm
Frontier
1 Stop
11h 32m
ISP - ORD
Frontier
$70
JustFly
2:00 am - 4:39 am
American Airlines
2 Stops
27h 39m
ISP - ORD
American Airlines
1:35 pm - 6:07 am
Multiple Airlines
1 Stop
17h 32m
ISP - ORD
Multiple Airlines
$127
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Islip</span> to <span class="emphasized">Illinois</span> flights.

Flight FAQs

From Islip to Illinois

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.

Which airlines flying from Islip Long Island to Illinois have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Frontier, and Spirit Airlines flying from Islip Long Island to Illinois have implemented new flexible cancellation policies.

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 $108, but on average you can expect to pay $149.

Are there last-minute flights available from Islip, New York to Illinois for under $200?

There are currently 14+ open flights from Islip, New York to Illinois within the next 7 days for less than $200.

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 - Springfield Capital when deciding on the best route from Islip, New York to Illinois.

What are the cheapest flights from Islip, New York to Illinois?

Looking for the cheapest flight from Islip, New York to Illinois? While on average our users pay $212, our data indicates the cheapest price to be $212. The most popular route (Islip Long Island - Chicago O'Hare Intl), is priced around $136.

What are the most popular airlines that fly from Islip, New York to Illinois?

The most popular airlines flying from Islip, New York to Illinois are American Airlines, Delta and Spirit Airlines. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for Illinois (IL)

Do I need a COVID test to fly to Illinois from Islip?

Information is based on travel restrictions for travel to Illinois within the United States

Most visitors from Islip Long Island need to provide a negative COVID-19 test result and/or quarantine to enter Illinois.

COVID-19 testing requirements
Visitors from Islip Long Island must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Illinois.

Quarantine requirements
Visitors from Islip Long Island are not required to quarantine after entering Illinois.

Do I need a test to fly back to Islip from Illinois?

Returning to Islip Long Island from Illinois

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Islip Long Island.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering Islip Long Island.

Hide COVID Travel Restrictions for Illinois (IL)

Destination points for flights from Islip to Illinois

Select to see more specific information for flights from Islip to all places in Illinois.

Destination information for Illinois

Things to know before you go - useful duration and weather info for your trip from Islip to Illinois.

Airports servicing Islip

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)
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