ISP

$145 Find Cheap Flights from Colorado to Islip - Compare and Save

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 8/11. 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 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

Tue, Sep 15 - Tue, Sep 29
Frontier Logo
10:26 am - 9:33 am
DEN
-
ISP
21h 07m
1 stop
Frontier Logo
4:13 pm - 11:04 pm
ISP
-
DEN
8h 51m
1 stop
$290Frontier
Tue, Sep 15 - Tue, Sep 29
Multiple Airlines Logo
10:26 am - 9:33 am
DEN
-
ISP
21h 07m
1 stop
Multiple Airlines Logo
12:00 pm - 10:33 pm
ISP
-
DEN
12h 33m
2 stops
$296Multiple Airlines
Tue, Aug 18 - Sat, Aug 22
Frontier Logo
11:59 pm - 9:53 am
DEN
-
ISP
7h 54m
1 stop
Frontier Logo
7:09 pm - 7:33 am
ISP
-
DEN
14h 24m
1 stop
$299Frontier
Thu, Aug 20 - Sun, Aug 23
Frontier Logo
6:00 am - 6:14 pm
DEN
-
ISP
10h 14m
1 stop
Frontier Logo
7:09 pm - 7:33 am
ISP
-
DEN
14h 24m
1 stop
$308Frontier
Mon, Aug 31 - Fri, Sep 4
Multiple Airlines Logo
11:59 pm - 1:28 pm
DEN
-
ISP
11h 29m
2 stops
Multiple Airlines Logo
7:09 pm - 8:07 am
ISP
-
DEN
14h 58m
1 stop
$320Multiple Airlines
Sat, Aug 8 - Fri, Aug 14
Frontier Logo
6:00 am - 7:01 pm
DEN
-
ISP
11h 01m
1 stop
Frontier Logo
7:46 pm - 10:29 pm
ISP
-
DEN
28h 43m
1 stop
$323Frontier
Wed, Aug 26 - Sun, Aug 30
Multiple Airlines Logo
3:12 pm - 9:53 am
DEN
-
ISP
16h 41m
1 stop
Multiple Airlines Logo
7:49 pm - 9:19 am
ISP
-
DEN
39h 30m
2 stops
$327Multiple Airlines
Tue, Sep 1 - Mon, Sep 7
Frontier Logo
11:59 pm - 9:53 am
DEN
-
ISP
7h 54m
1 stop
Frontier Logo
7:09 pm - 8:07 am
ISP
-
DEN
14h 58m
1 stop
$329Frontier
Wed, Sep 16 - Sat, Sep 19
Southwest Logo
7:20 am - 4:55 pm
COS
-
ISP
7h 35m
2 stops
Southwest Logo
5:30 am - 3:30 pm
ISP
-
COS
12h 00m
2 stops
$373Southwest
Sat, Aug 22 - Tue, Aug 25
Southwest Logo
8:55 am - 8:45 pm
COS
-
ISP
9h 50m
2 stops
Southwest Logo
10:55 am - 8:10 pm
ISP
-
COS
11h 15m
2 stops
$445Southwest
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Good to know

Low seasonFebruary
Cheapest flight$145
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 13% 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)