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Cheap flights from District of Columbia to New York from $115

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to New York departing on 6/24. 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 District of Columbia to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:32 pm - 9:53 am
IAD
-
ISP
20h 21m
1 stop
Frontier Logo
10:57 am - 12:47 pm
ISP
-
IAD
25h 50m
1 stop
$239Frontier
Tue, Jul 21 - Wed, Jul 29
Frontier Logo
1:32 pm - 9:53 am
IAD
-
ISP
20h 21m
1 stop
Frontier Logo
10:57 am - 12:47 pm
ISP
-
IAD
25h 50m
1 stop
$240Frontier
Tue, Jul 21 - Wed, Jul 29
Frontier Logo
1:38 pm - 3:56 pm
IAD
-
ISP
26h 18m
1 stop
Frontier Logo
9:52 pm - 12:53 pm
ISP
-
IAD
15h 01m
1 stop
$289Frontier
Mon, Jun 22 - Thu, Jun 25
Frontier Logo
1:23 pm - 8:57 pm
IAD
-
ISP
7h 34m
1 stop
Frontier Logo
9:52 pm - 12:53 pm
ISP
-
IAD
15h 01m
1 stop
$310Frontier
Sat, Jun 13 - Wed, Jun 17
Frontier Logo
1:23 pm - 8:57 pm
IAD
-
ISP
7h 34m
1 stop
Frontier Logo
9:52 pm - 12:53 pm
ISP
-
IAD
15h 01m
1 stop
$313Frontier
Sat, Jun 27 - Mon, Jun 29
Frontier Logo
1:38 pm - 8:57 pm
IAD
-
ISP
7h 19m
1 stop
Frontier Logo
9:52 pm - 12:53 pm
ISP
-
IAD
15h 01m
1 stop
$320Frontier
Wed, Jun 17 - Sun, Jun 21
Multiple Airlines Logo
1:38 pm - 8:57 pm
IAD
-
ISP
7h 19m
1 stop
Multiple Airlines Logo
9:52 pm - 2:12 pm
ISP
-
IAD
16h 20m
2 stops
$339Multiple Airlines
Wed, Jun 17 - Sun, Jun 21
Southwest Logo
5:25 pm - 11:45 pm
DCA
-
ISP
6h 20m
1 stop
Southwest Logo
5:20 am - 12:00 pm
ISP
-
DCA
6h 40m
1 stop
$347Southwest
Mon, Jul 13 - Thu, Jul 16
Southwest Logo
12:50 pm - 9:30 pm
DCA
-
ISP
8h 40m
1 stop
Southwest Logo
10:30 am - 10:00 pm
ISP
-
DCA
11h 30m
1 stop
$352Southwest
Mon, Aug 17 - Wed, Aug 19
JetBlue Logo
3:10 pm - 9:44 pm
DCA
-
ISP
6h 34m
1 stop
JetBlue Logo
4:58 pm - 11:33 pm
ISP
-
DCA
6h 35m
1 stop
$363JetBlue
Tue, Jul 14 - Thu, Jul 16

JetBlue flights from District of Columbia to Islip, New York

Our best JetBlue deals on District of Columbia to Islip, New York flight tickets
JetBlue
Jul 14
DCA3:10 pmWashington, D.C. Reagan-National
6h 34m
1 stop
ISP9:44 pmIslip Long Island
Jul 16
ISP4:58 pmIslip Long Island
6h 35m
1 stop
DCA11:33 pmWashington, D.C. Reagan-National
$363
JetBlue
Jul 13
DCA11:50 amWashington, D.C. Reagan-National
11h 57m
1 stop
ISP11:47 pmIslip Long Island
Jul 15
ISP6:00 amIslip Long Island
8h 15m
1 stop
DCA2:15 pmWashington, D.C. Reagan-National
$433
JetBlue
Aug 27
DCA3:35 pmWashington, D.C. Reagan-National
7h 21m
1 stop
ISP10:56 pmIslip Long Island
Sep 3
ISP11:25 amIslip Long Island
8h 34m
1 stop
DCA7:59 pmWashington, D.C. Reagan-National
$441

Frontier flights from District of Columbia to Islip, New York

Our best Frontier deals on District of Columbia to Islip, New York flight tickets
Frontier
Jul 21
IAD1:32 pmWashington, D.C. Dulles Intl
20h 21m
1 stop
ISP9:53 amIslip Long Island
Jul 29
ISP10:57 amIslip Long Island
25h 50m
1 stop
IAD12:47 pmWashington, D.C. Dulles Intl
$239
Frontier
Jul 21
IAD1:32 pmWashington, D.C. Dulles Intl
20h 21m
1 stop
ISP9:53 amIslip Long Island
Jul 29
ISP10:57 amIslip Long Island
25h 50m
1 stop
IAD12:47 pmWashington, D.C. Dulles Intl
$240
Frontier
Jun 22
IAD1:38 pmWashington, D.C. Dulles Intl
26h 18m
1 stop
ISP3:56 pmIslip Long Island
Jun 25
ISP9:52 pmIslip Long Island
15h 01m
1 stop
IAD12:53 pmWashington, D.C. Dulles Intl
$289

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 June 3, 2026.
Use the filters below to find and compare flights from District of Columbia to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Tue 7/21

1:32 pm-9:53 am

1 stop20h 21m

Islip Long Island

Wed 7/29

10:57 am-12:47 pm

1 stop25h 50m

$239

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Tue 7/21

1:32 pm-9:53 am

1 stop20h 21m

Islip Long Island

Wed 7/29

10:57 am-12:47 pm

1 stop25h 50m

$240

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Mon 6/22

1:38 pm-3:56 pm

1 stop26h 18m

Islip Long Island

Thu 6/25

9:52 pm-12:53 pm

1 stop15h 01m

$289

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 6/13

1:23 pm-8:57 pm

1 stop7h 34m

Islip Long Island

Wed 6/17

9:52 pm-12:53 pm

1 stop15h 01m

$310

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 6/27

1:23 pm-8:57 pm

1 stop7h 34m

Islip Long Island

Mon 6/29

9:52 pm-12:53 pm

1 stop15h 01m

$313

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Wed 6/17

1:38 pm-8:57 pm

1 stop7h 19m

Islip Long Island

Sun 6/21

9:52 pm-12:53 pm

1 stop15h 01m

$320

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Wed 6/17

1:38 pm-8:57 pm

1 stop7h 19m

Islip Long Island

Sun 6/21

9:52 pm-2:12 pm

2 stops16h 20m

$339
Quickest round-trip

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 7/13

5:25 pm-11:45 pm

1 stop6h 20m

Islip Long Island

Thu 7/16

5:20 am-12:00 pm

1 stop6h 40m

$347

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 8/17

12:50 pm-9:30 pm

1 stop8h 40m

Islip Long Island

Wed 8/19

10:30 am-10:00 pm

1 stop11h 30m

$352

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Tue 7/14

3:10 pm-9:44 pm

1 stop6h 34m

Islip Long Island

Thu 7/16

4:58 pm-11:33 pm

1 stop6h 35m

$363

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 District of Columbia 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 month to fly to Islip, New York?

The month of February is, on average, the cheapest month to fly to Islip, New York from District of Columbia, with most prices found around $0. If you aren’t able to travel to Islip, New York during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $157.

What is the cheapest District of Columbia to Islip Long Island flight route?

Fly from Baltimore/Washington to Islip Long Island for the best District of Columbia - Islip Long Island flight prices

What cabin class options are available on District of Columbia to Islip, New York flights?

There is only 1 cabin class available to choose from on District of Columbia to Islip, New York flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap District of Columbia to Islip, New York flight deals and tips

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

Fastest flight time

5h 45m

Direct flights

None
The fastest flight from District of Columbia to Islip, New York takes 5h 45m
There are no direct flights from District of Columbia to Islip, New York. There are no popular flight routes from District of Columbia to Islip, New York.
Search flight deals

Frequently asked questions about flying from District of Columbia to Islip, New York

  • When did momondo last update prices for flights from District of Columbia to Islip Long Island Airport?

    Prices for flights from District of Columbia to Islip Long Island Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Islip Long Island Airport.

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

    The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Islip, New York

Compare and see reviews for airlines that fly from District of Columbia to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $275Free CancellationRating
8.0
4,255 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
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Islip?

It is quick and easy to find District of Columbia 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 District of Columbia to Islip with flexible booking policies on momondo?

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

How can momondo help me find flights from District of Columbia to Islip?

Once you have performed a search for District of Columbia to Islip flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for District of Columbia to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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