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 $282. 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 $259 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
$175 - $406
Route
Depart
Return
Price
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Mon 6/10
1 stop9h 22m
Chicago O'Hare Intl
Thu 6/13
1 stop6h 52m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Thu 6/6
1 stop27h 45m
Chicago O'Hare Intl
Thu 6/13
1 stop6h 52m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Mon 6/10
1 stop9h 22m
Chicago O'Hare Intl
Mon 6/17
1 stop12h 42m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Tue 8/13
1 stop8h 34m
Chicago O'Hare Intl
Fri 8/16
1 stop13h 30m
Islip Long IslandLambert-St Louis
ISP - STL
ISPSTL
Islip Long Island
Sat 6/15
1 stop15h 21m
Lambert-St Louis
Sat 7/13
1 stop11h 25m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Tue 6/11
1 stop28h 15m
Chicago O'Hare Intl
Tue 6/18
1 stop22h 27m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Wed 6/19
1 stop9h 22m
Chicago O'Hare Intl
Fri 6/21
1 stop12h 42m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Mon 6/17
1 stop4h 55m
Chicago O'Hare Intl
Tue 6/18
1 stop4h 10m
Islip Long IslandChicago O'Hare Intl
ISP - ORD
ISPORD
Islip Long Island
Mon 6/10
3 stops24h 43m
Chicago O'Hare Intl
Thu 6/13
2 stops21h 27m
No data available for this route at this time. Please check back soon.
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
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