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Cheap flights from Washington, D.C. to New York from $65

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. to New York departing on 2/25. 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. to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:39 pm - 7:38 am
BWI
-
ISP
9h 59m
1 stop
Frontier Logo
3:34 pm - 6:59 pm
ISP
-
BWI
27h 25m
1 stop
$175Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
9:39 pm - 7:38 am
BWI
-
ISP
9h 59m
1 stop
Frontier Logo
2:17 pm - 5:13 pm
ISP
-
BWI
26h 56m
2 stops
$193Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
9:39 pm - 7:38 am
BWI
-
ISP
9h 59m
1 stop
Frontier Logo
5:51 pm - 2:13 pm
ISP
-
BWI
20h 22m
1 stop
$242Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
9:39 pm - 7:38 am
BWI
-
ISP
9h 59m
1 stop
Frontier Logo
5:51 pm - 5:13 pm
ISP
-
BWI
23h 22m
2 stops
$266Frontier
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
3:50 pm - 5:00 pm
BWI
-
ISP
1h 10mnonstop
Southwest Logo
6:00 am - 7:30 am
ISP
-
BWI
1h 30mnonstop
$272Southwest
Thu, Feb 26 - Tue, Mar 3
Southwest Logo
11:15 am - 12:25 pm
BWI
-
ISP
1h 10mnonstop
Southwest Logo
4:05 pm - 5:30 pm
ISP
-
BWI
1h 25mnonstop
$281Southwest
Thu, Feb 26 - Mon, Mar 2
JetBlue Logo
6:55 pm - 8:55 am
DCA
-
ISP
14h 00m
1 stop
JetBlue Logo
9:45 am - 5:59 pm
ISP
-
DCA
8h 14m
1 stop
$345JetBlue
Mon, Mar 16 - Tue, Mar 24
Multiple Airlines Logo
1:30 am - 2:39 pm
IAD
-
ISP
37h 09m
2 stops
Multiple Airlines Logo
8:01 pm - 7:20 am
ISP
-
IAD
11h 19m
1 stop
$644Multiple Airlines
Tue, Feb 10 - Sun, Feb 15
Multiple Airlines Logo
6:00 am - 6:44 pm
DCA
-
ISP
12h 44m
2 stops
Multiple Airlines Logo
9:59 am - 10:59 pm
ISP
-
DCA
13h 00m
2 stops
$820Multiple Airlines
Mon, Mar 16 - Tue, Mar 24
Breeze Airways Logo
2:10 pm - 11:15 am
IAD
-
ISP
21h 05m
1 stop
Breeze Airways Logo
11:55 am - 2:18 pm
ISP
-
IAD
26h 23m
3 stops
$1,068Breeze Airways
Thu, Feb 19 - Sun, Feb 22

JetBlue flights from Washington, D.C. to Islip, New York

Our best JetBlue deals on Washington, D.C. to Islip, New York flight tickets
JetBlue
Mar 16
DCA6:55 pmWashington, D.C. Reagan-National
14h 00m
1 stop
ISP8:55 amIslip Long Island
Mar 24
ISP9:45 amIslip Long Island
8h 14m
1 stop
DCA5:59 pmWashington, D.C. Reagan-National
$345
JetBlue
Jul 9
DCA6:59 amWashington, D.C. Reagan-National
5h 57m
1 stop
ISP12:56 pmIslip Long Island
Jul 12
ISP1:51 pmIslip Long Island
7h 09m
1 stop
DCA9:00 pmWashington, D.C. Reagan-National
$991

Frontier flights from Washington, D.C. to Islip, New York

Our best Frontier deals on Washington, D.C. to Islip, New York flight tickets
Frontier
Feb 26
BWI9:39 pmBaltimore/Washington
9h 59m
1 stop
ISP7:38 amIslip Long Island
Mar 2
ISP3:34 pmIslip Long Island
27h 25m
1 stop
BWI6:59 pmBaltimore/Washington
$175
Frontier
Feb 26
BWI9:39 pmBaltimore/Washington
9h 59m
1 stop
ISP7:38 amIslip Long Island
Mar 2
ISP2:17 pmIslip Long Island
26h 56m
2 stops
BWI5:13 pmBaltimore/Washington
$193
Frontier
Feb 26
BWI9:39 pmBaltimore/Washington
9h 59m
1 stop
ISP7:38 amIslip Long Island
Mar 1
ISP5:51 pmIslip Long Island
20h 22m
1 stop
BWI2:13 pmBaltimore/Washington
$242

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 2/26

9:39 pm-7:38 am

1 stop9h 59m

Islip Long Island

Mon 3/2

3:34 pm-6:59 pm

1 stop27h 25m

$175

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 2/26

9:39 pm-7:38 am

1 stop9h 59m

Islip Long Island

Mon 3/2

2:17 pm-5:13 pm

2 stops26h 56m

$193

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 2/26

9:39 pm-7:38 am

1 stop9h 59m

Islip Long Island

Sun 3/1

5:51 pm-2:13 pm

1 stop20h 22m

$242

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 2/26

9:39 pm-7:38 am

1 stop9h 59m

Islip Long Island

Sun 3/1

5:51 pm-5:13 pm

2 stops23h 22m

$266

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 2/26

3:50 pm-5:00 pm

Nonstop1h 10m

Islip Long Island

Tue 3/3

6:00 am-7:30 am

Nonstop1h 30m

$272

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 2/26

11:15 am-12:25 pm

Nonstop1h 10m

Islip Long Island

Mon 3/2

4:05 pm-5:30 pm

Nonstop1h 25m

$281

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 3/16

6:55 pm-8:55 am

1 stop14h 00m

Islip Long Island

Tue 3/24

9:45 am-5:59 pm

1 stop8h 14m

$345

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Tue 2/10

1:30 am-2:39 pm

2 stops37h 09m

Islip Long Island

Sun 2/15

8:01 pm-7:20 am

1 stop11h 19m

$644

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 3/16

6:00 am-6:44 pm

2 stops12h 44m

Islip Long Island

Tue 3/24

9:59 am-10:59 pm

2 stops13h 00m

$820

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 2/19

2:10 pm-11:15 am

1 stop21h 05m

Islip Long Island

Sun 2/22

11:55 am-2:18 pm

3 stops26h 23m

$1,068

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. 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 Washington, D.C., with most prices found around $278. If you aren’t able to travel to Islip, New York during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $339.

What is the cheapest Washington, D.C. to Islip Long Island flight route?

Fly from Baltimore/Washington to Islip Long Island for the best Washington, D.C. - Islip Long Island flight prices

What cabin class options are available on Washington, D.C. to Islip Long Island flights?

There is only 1 cabin class available to choose from on Washington, D.C. 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.

Can stopping save me money on Washington, D.C. to Islip, New York flights?

You could potentially save up to 50% on your flight if you consider stops on a Washington, D.C. to Islip, New York flight.

When to book flights from Washington, D.C. to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Islip, New York (WAS to ISP) flight deals and tips

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

Best Price Found

$180

Fastest flight time

1h 10m

Direct flights

Mon, Tue, Thu, Fri and Sat

Airports in Islip, New York

1 airport
The best one-way flight to Islip, New York from Washington, D.C. in the past 72 hours is $180. The best round-trip flight deal from Washington, D.C. to Islip, New York found on momondo in the last 72 hours is $339.
The fastest flight from Washington, D.C. to Islip, New York takes 1h 10m
Direct flights go from Washington, D.C. to Islip, New York on Monday, Tuesday, Thursday, Friday and Saturday. The only airline offering direct flights is Southwest.
There is 1 airport in Islip, New York. From Washington, D.C. there are direct flights to Islip Long Island (ISP).
Search flight deals

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

    The straight-line distance from Washington, D.C. to Islip Long Island is 238.7 mi. Flights usually cover this in 1h 10m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. to Islip Long Island Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. to Islip Long Island Airport?

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

  • What is the most popular plane model from Washington, D.C. to Islip, New York?

  • What is the most popular airline from Washington, D.C. to Islip, New York?

Best airlines flying from Washington, D.C. to Islip, New York

Compare and see reviews for airlines that fly from Washington, D.C. to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $231Free CancellationRating
8.0
4,267 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 Washington, D.C. to Islip?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Islip. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Islip from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Washington, D.C..

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

Price alerts on flights to Islip from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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