ISP

$144 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 8/24. 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

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Flights 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

Tue, Jul 22 - Tue, Jul 22
Southwest Logo
8:05 am - 3:50 pmSTL-ISP
6h 45m1 stop
Southwest Logo
5:45 pm - 11:00 pmISP-STL
6h 15m1 stop
$249Southwest
Find Deal
Tue, Jul 8 - Tue, Jul 15
Southwest Logo
5:15 am - 12:00 pmSTL-ISP
5h 45m1 stop
Southwest Logo
4:40 pm - 10:55 pmISP-STL
7h 15m1 stop
$276Southwest
Find Deal
Tue, Jul 8 - Tue, Jul 15
Southwest Logo
5:15 am - 12:00 pmSTL-ISP
5h 45m1 stop
Southwest Logo
6:00 am - 11:35 amISP-STL
6h 35m2 stops
$281Southwest
Find Deal
Wed, Jul 9 - Sat, Jul 12
Southwest Logo
11:25 am - 9:45 pmORD-ISP
9h 20m1 stop
Southwest Logo
6:30 am - 3:20 pmISP-ORD
9h 50m1 stop
$297Southwest
Find Deal
Thu, Aug 28 - Thu, Sep 4
Frontier Logo
7:30 am - 8:06 pmORD-ISP
11h 36m1 stop
Frontier Logo
11:27 am - 12:57 pmISP-ORD
26h 30m1 stop
$301Frontier
Find Deal
Tue, Jul 22 - Tue, Jul 22
Southwest Logo
5:25 am - 12:00 pmSTL-ISP
5h 35m2 stops
Southwest Logo
5:45 pm - 11:00 pmISP-STL
6h 15m1 stop
$305Southwest
Find Deal
Sat, Jul 26 - Sat, Aug 2
Frontier Logo
9:08 am - 7:42 pmORD-ISP
9h 34m1 stop
Frontier Logo
8:37 pm - 3:43 pmISP-ORD
20h 06m1 stop
$307Frontier
Find Deal
Thu, Aug 28 - Mon, Sep 1
Frontier Logo
7:30 am - 8:06 pmORD-ISP
11h 36m1 stop
Frontier Logo
8:59 am - 6:41 pmISP-ORD
10h 42m1 stop
$312Frontier
Find Deal
Wed, Aug 6 - Sat, Aug 9
Southwest Logo
1:50 pm - 10:05 pmORD-ISP
7h 15m1 stop
Southwest Logo
5:40 am - 11:50 amISP-ORD
7h 10m1 stop
$319Southwest
Find Deal
Wed, Jun 25 - Sun, Jun 29
Logo
4:45 pm - 6:59 pmORD-ISP
25h 14m2 stops
Logo
7:39 pm - 11:45 pmISP-ORD
29h 06m3 stops
$644
Find Deal
Useful Info

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$144
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 2% lower on average.
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.

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Islip (ISP)

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