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Cheap flights from District of Columbia to New York from $153

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 3/20. 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 District of Columbia 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
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
Multiple Airlines Logo
8:15 am - 12:33 pm
IAD
-
ISP
28h 18m
1 stop
Multiple Airlines Logo
12:00 pm - 8:06 pm
ISP
-
IAD
8h 06m
1 stop
$496Multiple Airlines
Sun, Mar 15 - Thu, Mar 19
Frontier Logo
11:28 am - 9:08 am
IAD
-
ISP
21h 40m
1 stop
Frontier Logo
7:30 am - 12:49 am
ISP
-
IAD
17h 19m
2 stops
$506Frontier
Sat, Jun 27 - Sat, Jul 11
Frontier Logo
5:28 pm - 9:08 am
IAD
-
ISP
15h 40m
1 stop
Frontier Logo
10:03 am - 12:49 am
ISP
-
IAD
14h 46m
2 stops
$539Frontier
Thu, Jun 25 - Mon, Jun 29
Southwest Logo
6:00 am - 1:40 pm
DCA
-
ISP
7h 40m
1 stop
Southwest Logo
5:00 am - 11:20 am
ISP
-
DCA
6h 20m
1 stop
$557Southwest
Wed, Mar 11 - Sat, Mar 14
Multiple Airlines Logo
8:15 am - 3:49 pm
IAD
-
ISP
7h 34m
1 stop
Multiple Airlines Logo
10:31 am - 2:00 pm
ISP
-
IAD
27h 29m
2 stops
$570Multiple Airlines
Sun, Mar 15 - Thu, Mar 19
JetBlue Logo
2:45 pm - 11:46 pm
DCA
-
ISP
9h 01m
1 stop
JetBlue Logo
9:45 am - 5:59 pm
ISP
-
DCA
8h 14m
1 stop
$583JetBlue
Mon, Mar 16 - Fri, Mar 20
JetBlue Logo
3:00 pm - 11:47 pm
DCA
-
ISP
8h 47m
1 stop
JetBlue Logo
9:45 am - 5:54 pm
ISP
-
DCA
8h 09m
1 stop
$633JetBlue
Sat, Mar 14 - Wed, Mar 18

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
Jun 27
IAD11:28 amWashington, D.C. Dulles Intl
21h 40m
1 stop
ISP9:08 amIslip Long Island
Jul 11
ISP7:30 amIslip Long Island
17h 19m
2 stops
IAD12:49 amWashington, D.C. Dulles Intl
$506
Frontier
Jun 25
IAD5:28 pmWashington, D.C. Dulles Intl
15h 40m
1 stop
ISP9:08 amIslip Long Island
Jun 29
ISP10:03 amIslip Long Island
14h 46m
2 stops
IAD12:49 amWashington, D.C. Dulles Intl
$539
Frontier
Apr 11
IAD3:57 pmWashington, D.C. Dulles Intl
8h 02m
1 stop
ISP11:59 pmIslip Long Island
Apr 12
ISP12:08 pmIslip Long Island
22h 03m
1 stop
IAD10:11 amWashington, D.C. Dulles Intl
$614

Southwest flights from District of Columbia to Islip, New York

Our best Southwest deals on District of Columbia 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
Mar 25
DCA6:00 amWashington, D.C. Reagan-National
7h 40m
1 stop
ISP1:40 pmIslip Long Island
Mar 31
ISP2:20 pmIslip Long Island
8h 15m
2 stops
DCA10:35 pmWashington, D.C. Reagan-National
$403
Southwest
Jun 27
DCA2:40 pmWashington, D.C. Reagan-National
8h 15m
1 stop
ISP10:55 pmIslip Long Island
Jul 11
ISP5:35 amIslip Long Island
5h 35m
1 stop
DCA11:10 amWashington, D.C. Reagan-National
$407

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 March 1, 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

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

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

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sun 3/15

8:15 am-12:33 pm

1 stop28h 18m

Islip Long Island

Thu 3/19

12:00 pm-8:06 pm

1 stop8h 06m

$496

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 6/27

11:28 am-9:08 am

1 stop21h 40m

Islip Long Island

Sat 7/11

7:30 am-12:49 am

2 stops17h 19m

$506

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 6/25

5:28 pm-9:08 am

1 stop15h 40m

Islip Long Island

Mon 6/29

10:03 am-12:49 am

2 stops14h 46m

$539

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-1:40 pm

1 stop7h 40m

Islip Long Island

Sat 3/14

5:00 am-11:20 am

1 stop6h 20m

$557

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sun 3/15

8:15 am-3:49 pm

1 stop7h 34m

Islip Long Island

Thu 3/19

10:31 am-2:00 pm

2 stops27h 29m

$570

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 3/16

2:45 pm-11:46 pm

1 stop9h 01m

Islip Long Island

Fri 3/20

9:45 am-5:59 pm

1 stop8h 14m

$583

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Sat 3/14

3:00 pm-11:47 pm

1 stop8h 47m

Islip Long Island

Wed 3/18

9:45 am-5:54 pm

1 stop8h 09m

$633

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 April is, on average, the cheapest month to fly to Islip, New York from District of Columbia, with most prices found around $271. If you aren’t able to travel to Islip, New York during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $275.

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 Long Island flights?

There is only 1 cabin class available to choose from on District of Columbia to Islip Long Island 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

6h 05m

Direct flights

None
The fastest flight from District of Columbia to Islip, New York takes 6h 05m
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

  • 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 $231Free CancellationRating
8.0
4,303 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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