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Cheap flights from Washington, D.C. Reagan-National Airport to New York from $164

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport 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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Find the cheapest flights from Washington, D.C. Reagan-National Airport to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:00 am - 12:05 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
5:30 am - 11:20 am
ISP
-
DCA
5h 50m
1 stop
$299Southwest
Thu, May 14 - Sat, May 16
Southwest Logo
4:25 pm - 10:30 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
5:10 pm - 10:50 pm
ISP
-
DCA
5h 40m
1 stop
$327Southwest
Mon, Apr 27 - Fri, May 1
Southwest Logo
3:55 pm - 10:40 pm
DCA
-
ISP
6h 45m
1 stop
Southwest Logo
1:50 pm - 10:50 pm
ISP
-
DCA
9h 00m
1 stop
$347Southwest
Sat, Apr 25 - Sun, Apr 26
Southwest Logo
6:00 am - 1:40 pm
DCA
-
ISP
7h 40m
1 stop
Southwest Logo
2:20 pm - 10:35 pm
ISP
-
DCA
8h 15m
2 stops
$403Southwest
Wed, Mar 25 - Tue, Mar 31
Southwest Logo
2:40 pm - 10:55 pm
DCA
-
ISP
8h 15m
1 stop
Southwest Logo
5:35 am - 11:10 am
ISP
-
DCA
5h 35m
1 stop
$407Southwest
Sat, Jun 27 - Sat, Jul 11
Southwest Logo
3:55 pm - 10:40 pm
DCA
-
ISP
6h 45m
1 stop
Southwest Logo
5:15 am - 12:00 pm
ISP
-
DCA
6h 45m
1 stop
$417Southwest
Sat, Apr 18 - Sun, Apr 19
Southwest Logo
4:25 pm - 10:30 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
6:50 am - 3:40 pm
ISP
-
DCA
8h 50m
1 stop
$427Southwest
Mon, Apr 13 - Fri, Apr 17
JetBlue Logo
6:00 am - 11:35 am
DCA
-
ISP
5h 35m
1 stop
JetBlue Logo
12:25 pm - 7:30 pm
ISP
-
DCA
7h 05m
1 stop
$443JetBlue
Thu, Jul 23 - Mon, Jul 27
Southwest Logo
4:25 pm - 10:30 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
6:50 am - 6:05 pm
ISP
-
DCA
11h 15m
2 stops
$448Southwest
Mon, Apr 13 - Fri, Apr 17
Southwest Logo
4:00 pm - 10:40 pm
DCA
-
ISP
6h 40m
1 stop
Southwest Logo
5:00 am - 4:10 pm
ISP
-
DCA
11h 10m
2 stops
$480Southwest
Tue, Mar 17 - Sat, Mar 21

Southwest flights from Washington, D.C. Reagan-National Airport to Islip, New York

Our best Southwest deals on Washington, D.C. Reagan-National Airport to Islip, New York flight tickets
Southwest
May 14
DCA6:00 amWashington, D.C. Reagan-National
6h 05m
1 stop
ISP12:05 pmIslip Long Island
May 16
ISP5:30 amIslip Long Island
5h 50m
1 stop
DCA11:20 amWashington, D.C. Reagan-National
$299
Southwest
Apr 27
DCA4:25 pmWashington, D.C. Reagan-National
6h 05m
1 stop
ISP10:30 pmIslip Long Island
May 1
ISP5:10 pmIslip Long Island
5h 40m
1 stop
DCA10:50 pmWashington, D.C. Reagan-National
$327
Southwest
Apr 25
DCA3:55 pmWashington, D.C. Reagan-National
6h 45m
1 stop
ISP10:40 pmIslip Long Island
Apr 26
ISP1:50 pmIslip Long Island
9h 00m
1 stop
DCA10:50 pmWashington, D.C. Reagan-National
$347

JetBlue flights from Washington, D.C. Reagan-National Airport to Islip, New York

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to Islip, New York flight tickets
JetBlue
Jul 23
DCA6:00 amWashington, D.C. Reagan-National
5h 35m
1 stop
ISP11:35 amIslip Long Island
Jul 27
ISP12:25 pmIslip Long Island
7h 05m
1 stop
DCA7:30 pmWashington, D.C. Reagan-National
$443
JetBlue
Jul 23
DCA6:00 amWashington, D.C. Reagan-National
5h 35m
1 stop
ISP11:35 amIslip Long Island
Jul 26
ISP12:25 pmIslip Long Island
7h 05m
1 stop
DCA7:30 pmWashington, D.C. Reagan-National
$571
JetBlue
Mar 16
DCA2:45 pmWashington, D.C. Reagan-National
9h 01m
1 stop
ISP11:46 pmIslip Long Island
Mar 20
ISP9:45 amIslip Long Island
8h 14m
1 stop
DCA5:59 pmWashington, D.C. Reagan-National
$583

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 4, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 5/14

6:00 am-12:05 pm

1 stop6h 05m

Islip Long Island

Sat 5/16

5:30 am-11:20 am

1 stop5h 50m

$299

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 4/27

4:25 pm-10:30 pm

1 stop6h 05m

Islip Long Island

Fri 5/1

5:10 pm-10:50 pm

1 stop5h 40m

$327

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Sat 4/25

3:55 pm-10:40 pm

1 stop6h 45m

Islip Long Island

Sun 4/26

1:50 pm-10:50 pm

1 stop9h 00m

$347

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Wed 3/25

6:00 am-1:40 pm

1 stop7h 40m

Islip Long Island

Tue 3/31

2:20 pm-10:35 pm

2 stops8h 15m

$403

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Sat 6/27

2:40 pm-10:55 pm

1 stop8h 15m

Islip Long Island

Sat 7/11

5:35 am-11:10 am

1 stop5h 35m

$407

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Sat 4/18

3:55 pm-10:40 pm

1 stop6h 45m

Islip Long Island

Sun 4/19

5:15 am-12:00 pm

1 stop6h 45m

$417

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 4/13

4:25 pm-10:30 pm

1 stop6h 05m

Islip Long Island

Fri 4/17

6:50 am-3:40 pm

1 stop8h 50m

$427

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 7/23

6:00 am-11:35 am

1 stop5h 35m

Islip Long Island

Mon 7/27

12:25 pm-7:30 pm

1 stop7h 05m

$443

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 4/13

4:25 pm-10:30 pm

1 stop6h 05m

Islip Long Island

Fri 4/17

6:50 am-6:05 pm

2 stops11h 15m

$448

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Tue 3/17

4:00 pm-10:40 pm

1 stop6h 40m

Islip Long Island

Sat 3/21

5:00 am-4:10 pm

2 stops11h 10m

$480

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 Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National to Islip Long Island?

Southwest and JetBlue are the most popular carriers operating from Washington, D.C. Reagan-National to Islip Long Island

What airlines fly to Islip, New York?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Islip, New York from Washington, D.C. Reagan-National Airport according to our data. American Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 4 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 Washington, D.C. Reagan-National Airport to Islip, New York

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

Cheap Washington, D.C. Reagan-National Airport to Islip, New York (DCA to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Islip, New York

Fastest flight time

5h 35m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Islip, New York takes 5h 35m
There are no direct flights from Washington, D.C. Reagan-National Airport to Islip, New York. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Islip, New York.
Search flight deals

  • How far is Washington, D.C. Reagan-National to Islip Long Island by plane?

    Washington, D.C. Reagan-National and Islip Long Island are 240.8 mi apart from one another. By plane, this route typically takes 5h 35m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Islip Long Island Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Islip Long Island Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National 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.

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 Washington, D.C. to Islip?

It is quick and easy to find Washington, D.C. to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Washington, D.C. to Islip with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Islip flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Islip?

Once all potential Washington, D.C. 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 Washington, D.C. to Islip right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. 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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