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

Flights from Washington, D.C. Dulles Intl Airport to Islip usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Islip Long Island (ISP).

Do I need a passport to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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 $212 to $2,001. That means the highest observed fare was about 9x higher than the lowest one.

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

One-way fares from Washington, D.C. Dulles Intl Airport to Islip are currently lower than usual. Average one-way flight prices are about $129, which is 36% 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

How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Islip flight?

Round-trip flights from Washington, D.C. Dulles Intl Airport to Islip range from $196 to $196, with an average of $196 over the past 12 months. Anything below $196 counts as a good deal.

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

Frontier ($232) offered the cheapest round-trip ticket from Washington, D.C. Dulles Intl Airport to Islip in the last 5 days.

$100 CHEAP FLIGHTS from Washington Dulles to Islip (IAD - ISP)

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Cheapest round-trip

$232

Typical prices: $196-$196

Frontier

Sun 9/9Sun 9/16

IAD - ISP • 1 stop

Cheapest one-way

$100

Typical prices: $178-$408

Frontier

Sun 9/16

IAD - ISP • 1 stop

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We hope you love your trip to Islip!

Flight Deals

Cheap Flights from Dulles Intl to Islip (IAD-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 Dulles Intl 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

$212Frontier

Wed, Sep 9 - 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

$232Frontier

Wed, Sep 23 - Fri, Sep 25

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

$240Frontier

Sat, Sep 19 - Sun, Sep 20

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

5h 46m1 stop Orlando

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

18h 05m1 stop Tampa

$241Frontier

Sun, Sep 13 - Tue, Sep 15

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

$242Frontier

Sat, Sep 12 - Mon, Sep 14

7:28 pm - 6:03 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

22h 35m1 stop Tampa

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

16h 34m1 stop Orlando

$247Frontier

Thu, Sep 17 - Mon, Sep 21

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

$260Frontier

Sun, Sep 13 - Tue, Sep 15

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

$261Frontier

Sat, Sep 12 - Sun, Sep 13

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

$262Frontier

Fri, Sep 18 - Fri, Sep 25

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

$263Frontier

Recent last minute flight deals from Dulles Intl to Islip

Sat, Aug 29 - Mon, Aug 31

12:28 pm - 7:01 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 33m1 stop Tampa

10:57 am - 10:07 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

23h 10m1 stop Orlando

$320Frontier

Fri, Aug 28 - Sat, Aug 29

10:45 am - 6:14 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

7h 29m1 stop Orlando

7:46 pm - 11:43 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 57m1 stop Tampa

$351Frontier

Fri, Aug 28 - Sun, Aug 30

10:45 am - 6:14 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

7h 29m1 stop Orlando

7:09 pm - 9:50 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

14h 41m1 stop Orlando

$360Frontier

Thu, Aug 27 - Thu, Sep 3

12:28 pm - 7:01 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 33m1 stop Tampa

7:09 pm - 9:50 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

14h 41m1 stop Orlando

$368Frontier

Fri, Aug 28 - Sun, Aug 30

10:45 am - 6:14 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

7h 29m1 stop Orlando

7:09 pm - 9:50 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

14h 41m1 stop Orlando

$381Frontier

Fri, Aug 28 - Wed, Sep 2

4:52 pm - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

17h 01m1 stop Orlando

11:57 am - 10:52 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

10h 55m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$498Multiple Airlines

Fri, Aug 28 - Sat, Aug 29

4:52 pm - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

17h 01m1 stop Orlando

11:57 am - 10:52 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

10h 55m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$530Multiple Airlines

Thu, Aug 27 - Wed, Sep 2

4:52 pm - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

17h 01m1 stop Orlando

11:57 am - 10:52 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

10h 55m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$548Multiple Airlines

Fri, Aug 28 - Sun, Aug 30

4:52 pm - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

17h 01m1 stop Orlando

7:09 pm - 11:20 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 11m2 stops Orlando Blountville Tri Cities TN/VA

$553Multiple Airlines

Fri, Aug 28 - Wed, Sep 2

4:52 pm - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

17h 01m1 stop Orlando

11:57 am - 10:52 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

10h 55m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$555Multiple Airlines

Booking Insights

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

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Washington, D.C. Dulles Intl Airport to Islip with more confidence.

Prices

Airlines

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

Round-trip flights from Washington, D.C. Dulles Intl Airport to Islip start at $232. Prices are above average for this route right now, with typical round-trip fares ranging from $196 to $196. The lowest price found in the past 5 days was $232 on Frontier.

Find deals

Cheapest flight	$100

Flight from Washington, D.C. Dulles Intl Airport to Islip

When to book flights from Dulles Intl to Islip

Are your dates flexible? Find out the best times to travel from Dulles Intl 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. Dulles Intl Airport to Islip?
Flights from Washington, D.C. Dulles Intl Airport to Islip usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Islip Long Island (ISP).
Do I need a passport to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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 $212 to $2,001. That means the highest observed fare was about 9x higher than the lowest one.
How are flight prices from Washington, D.C. Dulles Intl Airport to Islip looking right now?
One-way fares from Washington, D.C. Dulles Intl Airport to Islip are currently lower than usual. Average one-way flight prices are about $129, which is 36% 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
How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Islip flight?
Round-trip flights from Washington, D.C. Dulles Intl Airport to Islip range from $196 to $196, with an average of $196 over the past 12 months. Anything below $196 counts as a good deal.

Everything you need to know for your flight from Dulles Intl to Islip

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Washington Dulles Airport (IAD)

Islip (ISP)

IAD - ISP

$100 Find Cheap Flights from Washington Dulles Airport to Islip - Compare and Save

Everything you should know

Cheap Flights from Dulles Intl to Islip (IAD-ISP)

Recent round-trip flight deals from Dulles Intl to Islip

Recent one-way flight deals from Dulles Intl to Islip

Recent last minute flight deals from Dulles Intl to Islip

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

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

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

Key details for Washington, D.C. Dulles Intl Airport to Islip flights

Cheapest flight

When to book flights from Dulles Intl to Islip

Your Washington, D.C. Dulles Intl Airport to Islip flight questions, answered

Everything you need to know for your flight from Dulles Intl to Islip

Information on your arrival and departure airports

Cabin class types available on flights to Islip

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

Find direct flights to and from Dulles Intl and Islip

Flights to other popular destinations

Flights from domestic origins to Islip

Choose which airport to fly into in Islip

Find deals for your return flight