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 102% 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 $276. For sooner than that we have options available in the next 3 days from $423.
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 $262 for the month, but tickets can be as low as $81. Due to multiple factors, prepare for potentially higher prices in June.
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.
Fly from
Fly to
Budget
$145 - $205
Route
Depart
Return
Price
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Wed 5/29
1 stop9h 19m
Chicago O'Hare Intl
Tue 6/4
1 stop12h 23m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Tue 6/4
1 stop9h 19m
Chicago O'Hare Intl
Wed 6/5
1 stop12h 42m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Wed 8/14
1 stop8h 34m
Chicago O'Hare Intl
Mon 8/19
1 stop13h 30m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Fri 5/31
1 stop9h 19m
Chicago O'Hare Intl
Mon 6/3
1 stop13h 17m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Sat 5/18
1 stop9h 09m
Chicago O'Hare Intl
Sun 5/19
1 stop13h 17m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Tue 8/20
1 stop8h 34m
Chicago O'Hare Intl
Thu 8/22
1 stop13h 30m
Islip Long IslandLambert-St Louis
ISP - STL
ISPSTL
Islip Long Island
Sat 5/18
1 stop15h 19m
Lambert-St Louis
Sun 5/19
1 stop11h 29m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Thu 6/6
1 stop6h 10m
Chicago O'Hare Intl
Thu 6/13
1 stop6h 52m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Tue 5/21
1 stop28h 26m
Chicago O'Hare Intl
Fri 5/24
1 stop13h 17m
No data available for this route at this time. Please check back soon.
Crew
Entertainment
Food
Boarding
Overall
Comfort
Reviews
Had to pay to not have a random seat. Crew did not seem well prepared. Had to take back off right before landing.
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