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.

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 $226 to $1,808. That means the highest observed fare was about 8x 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 lower than usual. Average one-way flight prices are about $103, which is 47% below 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 starting from around $36 for economy cars. Top options include: • Budget • Enterprise Rent-A-Car • Avis • National • Empire Rent A Car

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

Southwest ($252) and Frontier ($254) are the cheapest airlines to fly round-trip from Washington, D.C. to Islip according to KAYAK data over the last 5 days.

$82 CHEAP FLIGHTS from Washington, D.C. to Islip (WAS - ISP)

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Cheapest round-trip

$249

Typical prices: $196-$196

Multiple Airlines

Sat 10/20Tue 10/23

IAD - ISP • 2 stops

Cheapest one-way

$82

Typical prices: $186-$339

Southwest

Sat 12/8

BWI - ISP • Non-stop

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We hope you love your trip to Islip!

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

Direct

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

Tue, Oct 20 - Fri, Oct 23

11:12 am - 11:20 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

24h 08m2 stops Orlando Raleigh-Durham

6:55 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 22m1 stop Orlando

$249Multiple Airlines

Wed, Nov 4 - Wed, Nov 4

6:00 am - 3:30 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

$252Southwest

Thu, Nov 12 - Mon, Nov 16

11:16 am - 5:31 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 15m1 stop Orlando

6:54 pm - 10:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 27m1 stop Orlando

$254Frontier

Wed, Nov 4 - Wed, Nov 4

10:40 am - 11:45 amBWI Baltimore/Washington-ISP Islip Long Island

1h 05mnonstop

4:05 pm - 5:25 pmISP Islip Long Island-BWI Baltimore/Washington

1h 20mnonstop

$258Southwest

Sat, Oct 17 - Mon, Oct 19

5:40 am - 5:30 pmBWI Baltimore/Washington-ISP Islip Long Island

11h 50m2 stops Atlanta Hartsfield-Jackson Orlando

6:55 pm - 8:20 amISP Islip Long Island-BWI Baltimore/Washington

13h 25m1 stop Orlando

$261Frontier

Sat, Oct 17 - Mon, Oct 19

9:15 am - 5:30 pmBWI Baltimore/Washington-ISP Islip Long Island

8h 15m1 stop Orlando

6:55 pm - 8:20 amISP Islip Long Island-BWI Baltimore/Washington

13h 25m1 stop Orlando

$275Frontier

Tue, Oct 20 - Fri, Oct 23

7:05 pm - 11:20 amBWI Baltimore/Washington-ISP Islip Long Island

16h 15m2 stops Orlando Raleigh-Durham

6:55 pm - 8:20 amISP Islip Long Island-BWI Baltimore/Washington

13h 25m1 stop Orlando

$276Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

10:25 pm - 11:35 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

5:40 am - 6:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$287Southwest

Fri, Oct 9 - Tue, Oct 13

10:25 pm - 11:40 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 15mnonstop

9:40 am - 10:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$287Southwest

Fri, Oct 2 - Sun, Oct 4

9:32 pm - 11:20 amBWI Baltimore/Washington-ISP Islip Long Island

13h 48m2 stops Orlando Raleigh-Durham

5:43 pm - 8:31 amISP Islip Long Island-BWI Baltimore/Washington

14h 48m1 stop Orlando

$298Multiple Airlines

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

Tue, Sep 15 - Tue, Sep 22

11:12 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

5h 46m1 stop Orlando

5:43 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 34m1 stop Orlando

$346Frontier

Fri, Sep 18 - Sun, Sep 20

10:27 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 31m1 stop Orlando

6:48 pm - 12:53 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

18h 05m1 stop Tampa

$356Frontier

Tue, Sep 15 - Tue, Sep 22

11:12 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

5h 46m1 stop Orlando

5:43 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 34m1 stop Orlando

$367Frontier

Tue, Sep 15 - Wed, Sep 16

11:12 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

5h 46m1 stop Orlando

5:43 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 34m1 stop Orlando

$376Frontier

Tue, Sep 15 - Thu, Sep 17

11:12 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

5h 46m1 stop Orlando

6:48 pm - 1:03 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

18h 15m1 stop Tampa

$376Frontier

Fri, Sep 18 - Sun, Sep 20

10:27 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 31m1 stop Orlando

6:48 pm - 12:53 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

18h 05m1 stop Tampa

$385Frontier

Fri, Sep 18 - Mon, Sep 21

10:27 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 31m1 stop Orlando

5:43 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 34m1 stop Orlando

$385Frontier

Thu, Sep 17 - Fri, Sep 18

11:12 am - 4:58 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

5h 46m1 stop Orlando

6:48 pm - 6:33 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

23h 45m1 stop Tampa

$396Frontier

Sat, Sep 19 - Sun, Sep 20

11:55 am - 7:35 pmDCA Washington, D.C. Reagan-National-ISP Islip Long Island

7h 40m1 stop Orlando

10:30 am - 6:50 pmISP Islip Long Island-DCA Washington, D.C. Reagan-National

8h 20m1 stop Tampa

$681Southwest

Sat, Sep 19 - Sun, Sep 20

10:55 am - 12:05 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

6:20 am - 7:35 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$703Southwest

Recent direct flight deals from Washington, D.C. to Islip

Wed, Nov 4 - Wed, Nov 4

10:40 am - 11:45 amBWI Baltimore/Washington-ISP Islip Long Island

1h 05mnonstop

4:05 pm - 5:25 pmISP Islip Long Island-BWI Baltimore/Washington

1h 20mnonstop

$258Southwest

Thu, Oct 1 - Sun, Oct 4

10:25 pm - 11:35 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

5:40 am - 6:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$287Southwest

Fri, Oct 9 - Tue, Oct 13

10:25 pm - 11:40 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 15mnonstop

9:40 am - 10:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$287Southwest

Sat, Oct 17 - Mon, Oct 19

8:35 pm - 9:50 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 15mnonstop

5:40 pm - 6:55 pmISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$309Southwest

Thu, Nov 12 - Mon, Nov 16

3:55 pm - 5:05 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

4:05 pm - 5:25 pmISP Islip Long Island-BWI Baltimore/Washington

1h 20mnonstop

$309Southwest

Tue, Oct 20 - Fri, Oct 23

6:45 pm - 8:00 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 15mnonstop

3:10 pm - 4:25 pmISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$309Southwest

Wed, Nov 11 - Sat, Nov 14

3:05 pm - 4:15 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

12:45 pm - 2:05 pmISP Islip Long Island-BWI Baltimore/Washington

1h 20mnonstop

$309Southwest

Fri, Oct 2 - Sun, Oct 4

3:50 pm - 5:00 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

5:40 am - 6:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$318Southwest

Fri, Oct 16 - Sun, Oct 18

3:50 pm - 5:00 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

5:40 am - 6:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 15mnonstop

$318Southwest

Fri, Nov 13 - Sun, Nov 15

3:55 pm - 5:05 pmBWI Baltimore/Washington-ISP Islip Long Island

1h 10mnonstop

5:35 am - 6:55 amISP Islip Long Island-BWI Baltimore/Washington

1h 20mnonstop

$318Southwest

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 from Washington, D.C. to Islip with more confidence.

Prices

Airlines

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

There's little price difference between Washington, D.C. to Islip routes. They average around $196 round-trip, based on KAYAK data over the past 12 months.

Find deals

Cheapest flight	$82

Flight from Baltimore 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.

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.
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 $226 to $1,808. That means the highest observed fare was about 8x 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 lower than usual. Average one-way flight prices are about $103, which is 47% below 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 starting from around $36 for economy cars. Top options include:
• Budget
• Enterprise Rent-A-Car
• Avis
• National
• Empire Rent A Car

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

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

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WAS - ISP

$82 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

Recent direct flight deals from Washington, D.C. to Islip

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

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

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

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

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