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Cheap flights from Denver to New York from $95

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 4/16. 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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Find the cheapest flights from Denver to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:59 pm - 9:13 am
DEN
-
ISP
7h 14m
1 stop
Frontier Logo
4:07 pm - 10:59 pm
ISP
-
DEN
8h 52m
1 stop
$190Frontier
Sat, May 2 - Fri, May 8
Frontier Logo
11:59 pm - 9:13 am
DEN
-
ISP
7h 14m
1 stop
Frontier Logo
4:07 pm - 10:59 pm
ISP
-
DEN
8h 52m
1 stop
$211Frontier
Thu, Apr 30 - Fri, May 8
Frontier Logo
9:25 am - 7:04 pm
DEN
-
ISP
7h 39m
1 stop
Frontier Logo
9:38 am - 10:59 pm
ISP
-
DEN
15h 21m
1 stop
$220Frontier
Sun, Apr 5 - Tue, Apr 14
Frontier Logo
11:59 pm - 9:33 am
DEN
-
ISP
7h 34m
1 stop
Frontier Logo
8:31 pm - 10:59 pm
ISP
-
DEN
28h 28m
1 stop
$231Frontier
Wed, Apr 22 - Mon, Apr 27
Frontier Logo
1:09 pm - 9:33 am
DEN
-
ISP
18h 24m
2 stops
Frontier Logo
8:31 pm - 10:59 pm
ISP
-
DEN
28h 28m
1 stop
$240Frontier
Wed, Apr 22 - Mon, Apr 27
Frontier Logo
11:59 pm - 10:56 am
DEN
-
ISP
8h 57m
1 stop
Frontier Logo
5:45 am - 8:10 am
ISP
-
DEN
28h 25m
1 stop
$284Frontier
Thu, Apr 2 - Sun, Apr 5
Frontier Logo
11:59 pm - 2:34 pm
DEN
-
ISP
12h 35m
1 stop
Frontier Logo
10:03 am - 8:13 am
ISP
-
DEN
24h 10m
1 stop
$290Frontier
Fri, May 22 - Fri, May 29
Frontier Logo
9:25 am - 9:08 am
DEN
-
ISP
21h 43m
1 stop
Frontier Logo
10:03 am - 8:13 am
ISP
-
DEN
24h 10m
1 stop
$310Frontier
Wed, May 27 - Tue, Jun 2
Multiple Airlines Logo
11:49 pm - 1:28 pm
DEN
-
ISP
35h 39m
2 stops
Multiple Airlines Logo
10:03 am - 8:13 am
ISP
-
DEN
24h 10m
1 stop
$324Multiple Airlines
Wed, May 27 - Tue, Jun 2
Frontier Logo
9:55 am - 7:36 pm
DEN
-
ISP
7h 41m
1 stop
Frontier Logo
4:07 pm - 10:59 pm
ISP
-
DEN
8h 52m
1 stop
$325Frontier
Mon, Apr 27 - Sun, May 10

Frontier flights from Denver to Islip, New York

Our best Frontier deals on Denver to Islip, New York flight tickets
Frontier
May 2
DEN11:59 pmDenver Intl
7h 14m
1 stop
ISP9:13 amIslip Long Island
May 10
ISP4:07 pmIslip Long Island
8h 52m
1 stop
DEN10:59 pmDenver Intl
$190
Frontier
Apr 30
DEN11:59 pmDenver Intl
7h 14m
1 stop
ISP9:13 amIslip Long Island
May 8
ISP4:07 pmIslip Long Island
8h 52m
1 stop
DEN10:59 pmDenver Intl
$211
Frontier
Apr 5
DEN9:25 amDenver Intl
7h 39m
1 stop
ISP7:04 pmIslip Long Island
Apr 14
ISP9:38 amIslip Long Island
15h 21m
1 stop
DEN10:59 pmDenver Intl
$220

Southwest flights from Denver to Islip, New York

Our best Southwest deals on Denver to Islip, New York flight tickets
Southwest
Apr 7
DEN12:05 pmDenver Intl
8h 05m
2 stops
ISP10:10 pmIslip Long Island
Apr 14
ISP12:30 pmIslip Long Island
9h 00m
2 stops
DEN7:30 pmDenver Intl
$377
Southwest
Apr 7
DEN5:15 amDenver Intl
6h 35m
1 stop
ISP1:50 pmIslip Long Island
Apr 14
ISP6:30 amIslip Long Island
6h 45m
1 stop
DEN11:15 amDenver Intl
$379
Southwest
Apr 22
DEN8:40 amDenver Intl
7h 50m
2 stops
ISP6:30 pmIslip Long Island
Apr 27
ISP8:35 amIslip Long Island
7h 30m
2 stops
DEN2:05 pmDenver Intl
$383

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Islip, New York 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 March 11, 2026.
Use the filters below to find and compare flights from Denver to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sat 5/2

11:59 pm-9:13 am

1 stop7h 14m

Islip Long Island

Fri 5/8

4:07 pm-10:59 pm

1 stop8h 52m

$190

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 4/30

11:59 pm-9:13 am

1 stop7h 14m

Islip Long Island

Fri 5/8

4:07 pm-10:59 pm

1 stop8h 52m

$211

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sun 4/5

9:25 am-7:04 pm

1 stop7h 39m

Islip Long Island

Tue 4/14

9:38 am-10:59 pm

1 stop15h 21m

$220

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 4/22

11:59 pm-9:33 am

1 stop7h 34m

Islip Long Island

Mon 4/27

8:31 pm-10:59 pm

1 stop28h 28m

$231

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 4/22

1:09 pm-9:33 am

2 stops18h 24m

Islip Long Island

Mon 4/27

8:31 pm-10:59 pm

1 stop28h 28m

$240

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 4/2

11:59 pm-10:56 am

1 stop8h 57m

Islip Long Island

Sun 4/5

5:45 am-8:10 am

1 stop28h 25m

$284

DenverIslip

DEN - ISP

DENISP

Denver Intl

Fri 5/22

11:59 pm-2:34 pm

1 stop12h 35m

Islip Long Island

Fri 5/29

10:03 am-8:13 am

1 stop24h 10m

$290

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 5/27

9:25 am-9:08 am

1 stop21h 43m

Islip Long Island

Tue 6/2

10:03 am-8:13 am

1 stop24h 10m

$310

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 5/27

11:49 pm-1:28 pm

2 stops35h 39m

Islip Long Island

Tue 6/2

10:03 am-8:13 am

1 stop24h 10m

$324

DenverIslip

DEN - ISP

DENISP

Denver Intl

Mon 4/27

9:55 am-7:36 pm

1 stop7h 41m

Islip Long Island

Sun 5/10

4:07 pm-10:59 pm

1 stop8h 52m

$325

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

How to get the cheapest flight ticket from Denver to Islip, New York

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 airline that flies from Denver Intl to Islip Long Island?

Frontier is the most popular carrier operating from Denver Intl to Islip Long Island

What airlines fly to Islip, New York?

United Airlines, Delta and Frontier are the top three most popular airlines that fly to Islip, New York from Denver according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 6 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When to book flights from Denver to Islip, New York

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

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

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

Fastest flight time

6h 50m

Direct flights

None
The fastest flight from Denver to Islip, New York takes 6h 50m
There are no direct flights from Denver to Islip, New York. There are no popular flight routes from Denver to Islip, New York.
Search flight deals

  • 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 50m.

  • 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, New York?

Best airlines flying from Denver to Islip, New York

Compare and see reviews for airlines that fly from Denver to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $375Free CancellationRating
8.0
4,317 reviews
Search Southwest flights

Traveling to a place near New York?

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Riverhead
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.

An easier way to manage your Islip, New York trip

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