Which airports can I use when flying from Washington, D.C. to Islip?

Flights from Washington, D.C. to Islip may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Islip Long Island (ISP).

What cabin classes can I book on flights from Washington, D.C. to Islip?

Only Economy Class is available on flights from Washington, D.C. to Islip.

Which airports do connecting flights from Washington, D.C. to Islip pass through?

Most connecting flights from Washington, D.C. to Islip pass through Orlando (MCO), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Washington, D.C. to Islip?

Yes. Flexible dates can save you up to 74% on flights from Washington, D.C. to Islip. Tuesday is the cheapest departure day at $196 round-trip on average, while Thursday is the most expensive at $733, a difference of $537. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Do I need a passport to fly from Washington, D.C. to Islip?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Washington, D.C. to Islip changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $492 to $1,333. That means the highest observed fare was about 3x higher than the lowest one.

How are flight prices from Washington, D.C. to Islip looking right now?

One-way fares from Washington, D.C. to Islip are currently higher than usual. Average one-way flight prices are about $279, which is 40% above the typical average for this route.

What car rental options are available at Islip Long Island Airport (ISP)?

Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates averaging $105 for economy cars. Top options include: • Budget • Enterprise Rent-A-Car • Avis • National • Empire Rent A Car

How much is a round-trip flight from Washington, D.C. to Islip?

Round-trip flights from Washington, D.C. to Islip typically range from $196 to $733. The lowest price found in the past 5 days was $492, on Southwest.

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

Washington, D.C. Dulles Intl Airport (IAD) to Islip (ISP) is the cheapest Washington, D.C. to Islip route, averaging $196 round-trip. Other Washington, D.C. to Islip routes average $733, based on KAYAK data over the past 12 months.

Which airline is the cheapest to fly from Washington, D.C. to Islip?

Southwest ($492) and JetBlue ($513) are the cheapest airlines to fly round-trip from Washington, D.C. to Islip according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Washington, D.C. to Islip?

Flights via Orlando (MCO) offer the most affordable fares, with an average round-trip price of $733. Based on KAYAK data over the past 3 months.

When flying from Washington, D.C. to Islip which airport offers the shortest layover?

Orlando (MCO) had the shortest average connection time for Washington, D.C. to Islip layovers at 4h 57m over the past 3 months.

$204 CHEAP FLIGHTS from Washington, D.C. to Islip (WAS - ISP)

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Cheapest round-trip

$492

Typical prices: $196-$733

Southwest

Mon 12/10Fri 12/14

DCA - ISP • 1 stop

Cheapest one-way

$204

Typical prices: $186-$339

Southwest

Tue 12/18

DCA - ISP • 1 stop

Top routes

IAD - ISP

Cheapest • 58% average savings

DCA - ISP

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Flight Deals

Cheap Flights from Washington, D.C. to Islip (WAS-ISP)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington, D.C. to Islip

Thu, Dec 10 - Mon, Dec 14

11:40 am - 9:10 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 30m1 stop Orlando

5:05 pm - 10:55 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

5h 50m1 stop Orlando

$492Southwest

Sat, Feb 13 - Sat, Feb 27

11:05 am - 9:50 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

10h 45m1 stop Orlando

1:25 pm - 8:00 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

6h 35m1 stop Orlando

$502Southwest

Fri, Nov 13 - Tue, Nov 17

5:20 pm - 9:37 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

28h 17m1 stop Fort Lauderdale

6:00 am - 11:24 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

17h 24m1 stop Fort Lauderdale

$513JetBlue

Thu, Nov 12 - Thu, Nov 12

6:10 am - 12:40 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

6h 30m1 stop Orlando

4:25 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

6h 15m1 stop Orlando

$518Southwest

Fri, Nov 13 - Tue, Nov 17

6:10 am - 3:35 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 25m2 stops Orlando West Palm Beach President Donald J. Trump Intl

5:05 pm - 10:55 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

5h 50m1 stop Orlando

$523Southwest

Thu, Nov 19 - Fri, Nov 20

6:00 am - 3:30 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 30m1 stop Orlando

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$540Southwest

Thu, Nov 19 - Sun, Nov 22

6:00 am - 3:30 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 30m1 stop Orlando

4:45 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

5h 55m1 stop Orlando

$543Southwest

Mon, Nov 16 - Thu, Nov 19

5:20 pm - 9:37 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

28h 17m1 stop Fort Lauderdale

9:40 am - 11:28 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

13h 48m1 stop Fort Lauderdale

$545JetBlue

Thu, Nov 19 - Sun, Nov 22

6:00 am - 3:30 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 30m1 stop Orlando

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$549Southwest

Fri, Dec 11 - Sun, Dec 13

7:00 pm - 9:47 amDCA Washington, D.C. Reagan-National-ISP Islip Long Island

14h 47m1 stop Orlando

10:39 am - 11:06 amISP Islip Long Island-DCA Washington, D.C. Reagan-National

24h 27m1 stop Orlando

$556JetBlue

Recent last minute flight deals from Washington, D.C. to Islip

Tue, Nov 3 - Wed, Nov 4

11:40 am - 9:05 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 25m1 stop Orlando

5:05 pm - 10:55 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

5h 50m1 stop Orlando

$692Southwest

Tue, Nov 3 - Fri, Nov 6

11:40 am - 9:05 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 25m1 stop Orlando

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$698Southwest

Tue, Nov 3 - Fri, Nov 6

6:00 am - 3:30 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 30m1 stop Orlando

4:25 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

6h 15m1 stop Orlando

$718Southwest

Wed, Nov 4 - Thu, Nov 5

11:40 am - 9:15 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 35m1 stop Orlando

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$732Southwest

Sun, Nov 1 - Mon, Nov 2

6:10 am - 12:40 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

6h 30m1 stop Orlando

4:25 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

6h 15m1 stop Orlando

$772Southwest

Sun, Nov 1 - Mon, Nov 2

6:10 am - 12:40 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

6h 30m1 stop Orlando

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$777Southwest

Sun, Nov 1 - Mon, Nov 2

6:10 am - 3:35 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 25m2 stops Orlando West Palm Beach President Donald J. Trump Intl

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$782Southwest

Sun, Nov 1 - Sun, Nov 8

7:50 am - 9:37 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

13h 47m1 stop Fort Lauderdale

6:00 am - 11:24 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

17h 24m1 stop Fort Lauderdale

$887JetBlue

Sun, Nov 1 - Sun, Nov 8

6:10 am - 12:40 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

6h 30m1 stop Orlando

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$888Southwest

Sun, Nov 1 - Sun, Nov 8

6:10 am - 3:35 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

9h 25m2 stops Orlando West Palm Beach President Donald J. Trump Intl

1:35 pm - 10:40 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

9h 05m2 stops West Palm Beach President Donald J. Trump Intl Orlando

$893Southwest

Booking Insights

Price, demand and travel trends for Washington, D.C. to Islip flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Washington, D.C. to Islip? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Islip departing in december.
What is the cheapest Washington, D.C. to Islip flight route? KAYAK tracks online flight deals over the last 12 months and analyzes pricing trends to identify the best available fares.: Washington, D.C. Dulles Intl Airport (IAD) to Islip (ISP) is the cheapest Washington, D.C. to Islip route, averaging $196 round-trip. Other Washington, D.C. to Islip routes average $733, based on KAYAK data over the past 12 months.

Find deals

Cheapest flight	$204

One-way flight from Washington, D.C. Reagan-National Airport to Islip

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Washington, D.C. to Islip?
Only Economy Class is available on flights from Washington, D.C. to Islip.
Do I need a passport to fly from Washington, D.C. to Islip?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
Have flight prices from Washington, D.C. to Islip changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $492 to $1,333. That means the highest observed fare was about 3x higher than the lowest one.
How are flight prices from Washington, D.C. to Islip looking right now?
One-way fares from Washington, D.C. to Islip are currently higher than usual. Average one-way flight prices are about $279, which is 40% above the typical average for this route.
What car rental options are available at Islip Long Island Airport (ISP)?
Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates averaging $105 for economy cars. Top options include:

• Budget
• Enterprise Rent-A-Car
• Avis
• National
• Empire Rent A Car
Which airports can I use when flying from Washington, D.C. to Islip?
Flights from Washington, D.C. to Islip may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Islip Long Island (ISP).
Which airports do connecting flights from Washington, D.C. to Islip pass through?
Most connecting flights from Washington, D.C. to Islip pass through Orlando (MCO), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Washington, D.C. to Islip?
Yes. Flexible dates can save you up to 74% on flights from Washington, D.C. to Islip. Tuesday is the cheapest departure day at $196 round-trip on average, while Thursday is the most expensive at $733, a difference of $537.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Thursday. On this route, Tuesday flights average $196, about $537 less than Thursday fares (73% savings) based on the last 12 months.

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WAS - ISP

$204 Find Cheap Flights from Washington, D.C. to Islip - Compare and Save

Everything you should know

Cheap Flights from Washington, D.C. to Islip (WAS-ISP)

Recent round-trip flight deals from Washington, D.C. to Islip

Recent one-way flight deals from Washington, D.C. to Islip

Recent last minute flight deals from Washington, D.C. to Islip

Price, demand and travel trends for Washington, D.C. to Islip flights

How much is a round-trip flight from Washington, D.C. to Islip?

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

Which airline is the cheapest to fly from Washington, D.C. to Islip?

What is the cheapest layover airport when flying from Washington, D.C. to Islip?

When flying from Washington, D.C. to Islip which airport offers the shortest layover?

Key details for Washington, D.C. to Islip flights

Cheapest flight

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

Your Washington, D.C. to Islip flight questions, answered

Your guide to booking Washington, D.C. to Islip flights

More options for your flight from Washington, D.C. to Islip

Complete your trip to Islip with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Washington, D.C. to Islip

Find direct flights to and from Washington, D.C. and Islip

Flights from domestic origins to Islip

Flights to other popular destinations

Find deals for your return flight