ISP

$90 Find Cheap Flights from Colorado 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 2/14. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$180
Frontier
Thu 2/12Thu 2/19
DEN - ISP • 1 stop
Cheapest one-way
$90
Frontier
Sat 2/14
DEN - ISP • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Colorado to Islip

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado 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 Colorado to Islip

Thu, Feb 12 - Thu, Feb 19
Frontier Logo
6:00 am - 4:12 pm
DEN
-
ISP
8h 12m
1 stop
Frontier Logo
3:34 pm - 10:59 pm
ISP
-
DEN
9h 25m
1 stop
$180Frontier
Wed, Mar 4 - Mon, Mar 9
Frontier Logo
11:59 pm - 2:39 pm
DEN
-
ISP
12h 40m
1 stop
Frontier Logo
1:22 pm - 8:20 am
ISP
-
DEN
20h 58m
1 stop
$200Frontier
Thu, Feb 26 - Fri, Feb 27
Frontier Logo
7:24 pm - 7:38 am
DEN
-
ISP
10h 14m
1 stop
Frontier Logo
5:07 pm - 8:00 pm
ISP
-
DEN
28h 53m
1 stop
$215Frontier
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
11:59 pm - 12:47 pm
DEN
-
ISP
10h 48m
1 stop
Frontier Logo
1:22 pm - 11:09 pm
ISP
-
DEN
11h 47m
1 stop
$218Frontier
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
6:00 am - 4:12 pm
DEN
-
ISP
8h 12m
1 stop
Frontier Logo
10:43 am - 11:13 pm
ISP
-
DEN
14h 30m
1 stop
$219Frontier
Tue, Feb 24 - Sat, Mar 7
Frontier Logo
9:25 am - 8:40 am
DEN
-
ISP
21h 15m
1 stop
Frontier Logo
10:43 am - 7:18 am
ISP
-
DEN
22h 35m
1 stop
$220Frontier
Wed, Feb 25 - Sat, Feb 28
Frontier Logo
12:05 pm - 4:22 pm
DEN
-
ISP
26h 17m
1 stop
Frontier Logo
12:01 pm - 10:59 pm
ISP
-
DEN
12h 58m
1 stop
$222Frontier
Sun, Apr 5 - Mon, Apr 13
Frontier Logo
12:13 am - 12:23 am
DEN
-
ISP
22h 10m
1 stop
Frontier Logo
7:34 pm - 10:59 pm
ISP
-
DEN
29h 25m
1 stop
$231Frontier
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
1:21 pm - 11:10 am
DEN
-
ISP
19h 49m
1 stop
Multiple Airlines Logo
2:31 pm - 12:09 pm
ISP
-
DEN
23h 38m
2 stops
$238Multiple Airlines
Thu, Mar 12 - Sun, Mar 15
Southwest Logo
10:40 am - 11:55 pm
COS
-
ISP
11h 15m
2 stops
Southwest Logo
11:45 am - 9:45 pm
ISP
-
COS
12h 00m
2 stops
$499Southwest
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$90
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Denver to Islip

FAQs for booking flights from Colorado to Islip

  • How does KAYAK find such low prices on flights from Colorado 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 Colorado to Islip.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Colorado 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 Colorado 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 Colorado with another airline.

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

Islip (ISP)