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Cheap flights from Denver to New York from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to New York departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:00 pm - 11:59 pmDEN-ISP
22h 59m1 stop
Frontier Logo
10:19 am - 11:04 pmISP-DEN
14h 45m1 stop
$160Frontier
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Thu, Dec 4 - Mon, Dec 8
Frontier Logo
11:59 pm - 7:34 pmDEN-ISP
17h 35m1 stop
Frontier Logo
12:35 pm - 10:29 amISP-DEN
23h 54m1 stop
$211Frontier
Find Deal
Mon, Dec 15 - Tue, Jan 13
Frontier Logo
11:59 pm - 9:09 amDEN-ISP
7h 10m1 stop
Frontier Logo
11:40 am - 8:43 amISP-DEN
23h 03m1 stop
$231Frontier
Find Deal
Sun, Nov 2 - Sat, Nov 8
Frontier Logo
9:19 am - 7:14 pmDEN-ISP
7h 55m1 stop
Frontier Logo
9:09 pm - 8:24 amISP-DEN
13h 15m1 stop
$238Frontier
Find Deal
Wed, Dec 10 - Sun, Dec 14
Frontier Logo
11:00 pm - 11:59 pmDEN-ISP
22h 59m1 stop
Frontier Logo
10:19 am - 11:04 pmISP-DEN
14h 45m1 stop
$241Frontier
Find Deal
Thu, Dec 4 - Mon, Dec 8
Southwest Logo
11:55 pm - 3:05 pmDEN-ISP
13h 10m2 stops
Southwest Logo
6:15 am - 2:50 pmISP-DEN
10h 35m2 stops
$419Southwest
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Sun, Dec 14 - Wed, Dec 17
Southwest Logo
7:00 am - 3:20 pmDEN-ISP
6h 20m1 stop
Southwest Logo
5:50 am - 9:55 amISP-DEN
6h 05m1 stop
$452Southwest
Find Deal
Thu, Nov 20 - Sun, Nov 23
Southwest Logo
5:00 am - 3:20 pmDEN-ISP
8h 20m2 stops
Southwest Logo
5:50 am - 9:55 amISP-DEN
6h 05m1 stop
$457Southwest
Find Deal
Thu, Nov 20 - Sun, Nov 23
Southwest Logo
5:00 am - 3:20 pmDEN-ISP
8h 20m2 stops
Southwest Logo
5:50 am - 2:15 pmISP-DEN
10h 25m2 stops
$476Southwest
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Thu, Nov 20 - Sun, Nov 23
Multiple Airlines Logo
12:44 am - 6:56 pmDEN-ISP
16h 12m2 stops
Multiple Airlines Logo
8:25 pm - 8:19 amISP-DEN
13h 54m1 stop
$492Multiple Airlines
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Wed, Nov 19 - Sun, Nov 23

Frontier flights from Denver to Islip

Our best Frontier deals on Denver to Islip flight tickets
Frontier
Dec 4
DEN11:00 pmDenver Intl
22h 59m
1 stop
ISP11:59 pmIslip Long Island
Dec 8
ISP10:19 amIslip Long Island
14h 45m
1 stop
DEN11:04 pmDenver Intl
$160
Find similar
Frontier
Oct 26
DEN12:25 amDenver Intl
8h 12m
1 stop
ISP10:37 amIslip Long Island
Nov 1
ISP4:58 pmIslip Long Island
25h 07m
1 stop
DEN4:05 pmDenver Intl
$196
Find similar
Frontier
Oct 24
DEN12:36 amDenver Intl
8h 01m
1 stop
ISP10:37 amIslip Long Island
Oct 29
ISP4:58 pmIslip Long Island
8h 18m
1 stop
DEN11:16 pmDenver Intl
$206
Find similar

Southwest flights from Denver to Islip

Our best Southwest deals on Denver to Islip flight tickets
Southwest
Dec 14
DEN11:55 pmDenver Intl
13h 10m
2 stops
ISP3:05 pmIslip Long Island
Dec 17
ISP6:15 amIslip Long Island
10h 35m
2 stops
DEN2:50 pmDenver Intl
$419
Find similar
Southwest
Nov 20
DEN7:00 amDenver Intl
6h 20m
1 stop
ISP3:20 pmIslip Long Island
Nov 23
ISP5:50 amIslip Long Island
6h 05m
1 stop
DEN9:55 amDenver Intl
$452
Find similar
Southwest
Nov 20
DEN5:00 amDenver Intl
8h 20m
2 stops
ISP3:20 pmIslip Long Island
Nov 23
ISP5:50 amIslip Long Island
6h 05m
1 stop
DEN9:55 amDenver Intl
$457
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Denver to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 12/4

11:00 pm-11:59 pm

1 stop22h 59m

Islip Long Island

Mon 12/8

10:19 am-11:04 pm

1 stop14h 45m

$160

DenverIslip

DEN - ISP

DENISP

Denver Intl

Mon 12/15

11:59 pm-7:34 pm

1 stop17h 35m

Islip Long Island

Tue 1/13

12:35 pm-10:29 am

1 stop23h 54m

$211

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sun 11/2

11:59 pm-9:09 am

1 stop7h 10m

Islip Long Island

Sat 11/8

11:40 am-8:43 am

1 stop23h 03m

$231

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 12/10

9:19 am-7:14 pm

1 stop7h 55m

Islip Long Island

Sun 12/14

9:09 pm-8:24 am

1 stop13h 15m

$238

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 12/4

11:00 pm-11:59 pm

1 stop22h 59m

Islip Long Island

Mon 12/8

10:19 am-11:04 pm

1 stop14h 45m

$241

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sun 12/14

11:55 pm-3:05 pm

2 stops13h 10m

Islip Long Island

Wed 12/17

6:15 am-2:50 pm

2 stops10h 35m

$419

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 11/20

7:00 am-3:20 pm

1 stop6h 20m

Islip Long Island

Sun 11/23

5:50 am-9:55 am

1 stop6h 05m

$452

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 11/20

5:00 am-3:20 pm

2 stops8h 20m

Islip Long Island

Sun 11/23

5:50 am-9:55 am

1 stop6h 05m

$457

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 11/20

5:00 am-3:20 pm

2 stops8h 20m

Islip Long Island

Sun 11/23

5:50 am-2:15 pm

2 stops10h 25m

$476

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 11/19

12:44 am-6:56 pm

2 stops16h 12m

Islip Long Island

Sun 11/23

8:25 pm-8:19 am

1 stop13h 54m

$492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Denver to Islip

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Islip?

On average, the least expensive day to fly to Islip from Denver is on a Thursday. momondo users have found tickets for Thursday departures for as low as $286. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Denver to Islip on a Wednesday will generally be more expensive and average around $426. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Islip?

Flying to Islip from Denver in the evening is the least expensive time of day to depart. momondo users have found prices as low as $266 when looking at flights departing in the evening. Flights in the morning are often more expensive with an average ticket price of $363.

When to book flights from Denver to Islip

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Islip according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Islip (DEN to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Islip

Direct flights

None
There are no direct flights from Denver to Islip. There are no popular flight routes from Denver to Islip.
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  • How far is Denver Intl to Islip Long Island by plane?

    A flight from Denver Intl to Islip Long Island will travel around 1667.0 mi. In terms of flight time, this usually takes a little over 6h 20m.

  • When did momondo last update prices for flights from Denver Intl Airport to Islip Long Island Airport?

    Prices for flights from Denver Intl Airport to Islip Long Island Airport were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to Islip Long Island Airport?

  • How old do you have to be to fly from Denver Intl Airport to Islip Long Island Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Denver to Islip?

Best airlines flying from Denver to Islip

Compare and see reviews for airlines that fly from Denver to Islip with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $357Free CancellationRating
8.0
4,241 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
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Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Islip?

Finding the right flight to Islip from Denver is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

Can I find flights from Denver to Islip with flexible booking policies on momondo?

All flight searches from Denver to Islip on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Denver to Islip?

Once all potential Denver to Islip flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Denver to Islip right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Denver to Islip flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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