ISP

$81 Find Cheap Flights from Illinois to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Islip departing on 5/12. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to Islip

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Islip

Sun, May 3 - Thu, May 7
Frontier Logo
6:00 am - 9:13 am
ORD
-
ISP
26h 13m
1 stop
Frontier Logo
11:12 am - 11:13 pm
ISP
-
ORD
13h 01m
1 stop
$218Frontier
Sun, May 3 - Thu, May 7
Frontier Logo
6:00 am - 9:13 am
ORD
-
ISP
26h 13m
1 stop
Frontier Logo
11:12 am - 8:32 pm
ISP
-
ORD
34h 20m
2 stops
$250Frontier
Fri, May 1 - Mon, May 4
Multiple Airlines Logo
5:50 am - 7:36 pm
ORD
-
ISP
12h 46m
2 stops
Multiple Airlines Logo
8:31 pm - 12:23 pm
ISP
-
ORD
16h 52m
1 stop
$257Multiple Airlines
Tue, May 12 - Tue, May 19
Southwest Logo
3:55 pm - 10:40 pm
STL
-
ISP
5h 45m
1 stop
Southwest Logo
9:00 am - 3:15 pm
ISP
-
STL
7h 15m
1 stop
$259Southwest
Tue, May 12 - Tue, May 19
Southwest Logo
2:10 pm - 10:40 pm
STL
-
ISP
7h 30m
2 stops
Southwest Logo
4:10 pm - 9:05 pm
ISP
-
STL
5h 55m
1 stop
$264Southwest
Mon, Apr 27 - Fri, May 1
Multiple Airlines Logo
5:05 am - 7:36 pm
ORD
-
ISP
13h 31m
2 stops
Multiple Airlines Logo
8:31 pm - 6:24 pm
ISP
-
ORD
22h 53m
1 stop
$266Multiple Airlines
Tue, May 12 - Tue, May 19
Southwest Logo
2:10 pm - 10:40 pm
STL
-
ISP
7h 30m
2 stops
Southwest Logo
12:30 pm - 8:00 pm
ISP
-
STL
8h 30m
2 stops
$269Southwest
Thu, May 14 - Thu, May 21
Frontier Logo
5:30 pm - 10:05 am
ORD
-
ISP
15h 35m
1 stop
Frontier Logo
11:12 am - 11:13 pm
ISP
-
ORD
13h 01m
1 stop
$279Frontier
Fri, May 15 - Sun, May 17
Frontier Logo
4:19 pm - 10:05 am
STL
-
ISP
16h 46m
1 stop
Frontier Logo
11:12 am - 12:21 am
ISP
-
STL
14h 09m
1 stop
$283Frontier
Fri, May 15 - Sun, May 17
Frontier Logo
4:19 pm - 10:05 am
STL
-
ISP
16h 46m
1 stop
Frontier Logo
11:12 am - 12:21 am
ISP
-
STL
14h 09m
1 stop
$285Frontier
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Good to know

Low seasonJanuary
Cheapest flight$81
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Chicago to Islip

FAQs for booking flights from Illinois to Islip

  • How does KAYAK find such low prices on flights from Illinois to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Amagansett

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip