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 $320 to $2,159. That means the highest observed fare was about 7x 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 $170, which is 16% 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 $38 for economy cars. Top options include: • Budget • Enterprise Rent-A-Car • Avis • National • Empire Rent A Car

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

Frontier ($328) and Breeze Airways ($391) are the cheapest airlines to fly round-trip from Washington, D.C. Dulles Intl Airport to Islip according to KAYAK data over the last 5 days.

$130 CHEAP FLIGHTS from Washington Dulles to Islip (IAD - ISP)

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Cheapest round-trip

$320

Typical prices: $196-$196

Breeze Airways

Tue 10/23Sat 10/27

IAD - ISP • 1 stop

Cheapest one-way

$130

Typical prices: $178-$408

Multiple Airlines

Sat 10/27

IAD - ISP • 2 stops

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

Cheap flights from Dulles Intl to Islip with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Fri, Oct 23 - Tue, Oct 27

7:53 pm - 2:45 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

18h 52m1 stop Vero Beach

12:00 pm - 5:12 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

29h 12m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$320Multiple Airlines

Fri, Oct 23 - Mon, Oct 26

11:12 am - 6:00 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 48m1 stop Orlando

6:55 pm - 10:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 26m1 stop Orlando

$328Frontier

Wed, Oct 21 - Sun, Oct 25

7:50 am - 10:17 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

26h 27m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham

6:25 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 52m1 stop Orlando

$331Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

11:16 am - 11:20 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

24h 04m2 stops Orlando Raleigh-Durham

10:25 am - 9:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

22h 56m1 stop Vero Beach

$341Multiple Airlines

Fri, Oct 23 - Mon, Oct 26

11:12 am - 6:00 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 48m1 stop Orlando

6:55 pm - 10:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 26m1 stop Orlando

$359Frontier

Fri, Oct 23 - Mon, Oct 26

11:12 am - 6:00 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 48m1 stop Orlando

6:55 pm - 10:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 26m1 stop Orlando

$374Frontier

Fri, Oct 23 - Tue, Oct 27

7:53 pm - 2:45 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

18h 52m1 stop Vero Beach

12:09 pm - 9:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

21h 12m1 stop Vero Beach

$391Breeze Airways

Wed, Oct 21 - Sun, Oct 25

9:06 pm - 5:30 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

20h 24m2 stops Atlanta Hartsfield-Jackson Orlando

6:25 pm - 5:13 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

22h 48m2 stops Orlando Atlanta Hartsfield-Jackson

$444Frontier

Fri, Nov 6 - Sun, Nov 8

9:06 pm - 5:31 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

20h 25m2 stops Atlanta Hartsfield-Jackson Orlando

6:33 pm - 11:43 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

29h 10m2 stops Orlando Atlanta Hartsfield-Jackson

$451Frontier

Fri, Nov 6 - Sun, Nov 8

9:06 pm - 5:31 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

20h 25m2 stops Atlanta Hartsfield-Jackson Orlando

6:33 pm - 11:43 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

29h 10m2 stops Orlando Atlanta Hartsfield-Jackson

$461Frontier

Thu, Oct 15 - Mon, Oct 19

11:12 am - 5:30 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 18m1 stop Orlando

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

15h 22m1 stop Orlando

$395Frontier

Wed, Oct 14 - Fri, Oct 16

1:49 pm - 10:17 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

20h 28m2 stops Vero Beach Raleigh-Durham

9:33 pm - 9:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

11h 48m1 stop Vero Beach

$552Breeze Airways

Thu, Oct 15 - Tue, Oct 20

6:08 pm - 10:33 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

16h 25m2 stops Fort Lauderdale Myrtle Beach Intl

12:09 pm - 9:21 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

21h 12m1 stop Vero Beach

$558Multiple Airlines

Thu, Oct 15 - Mon, Oct 19

6:08 pm - 10:33 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

16h 25m2 stops Fort Lauderdale Myrtle Beach Intl

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

15h 22m1 stop Orlando

$562Multiple Airlines

Sat, Oct 10 - Mon, Oct 12

11:12 am - 5:30 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 18m1 stop Orlando

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

15h 22m1 stop Orlando

$590Frontier

Sat, Oct 10 - Mon, Oct 12

11:12 am - 5:30 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 18m1 stop Orlando

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

15h 22m1 stop Orlando

$670Frontier

Thu, Oct 15 - Mon, Oct 19

9:06 pm - 6:00 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

20h 54m2 stops Atlanta Hartsfield-Jackson Orlando

6:55 pm - 5:13 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

22h 18m2 stops Orlando Atlanta Hartsfield-Jackson

$673Frontier

Wed, Oct 14 - Fri, Oct 16

9:06 pm - 5:30 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

20h 24m2 stops Atlanta Hartsfield-Jackson Orlando

6:55 pm - 5:13 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

22h 18m2 stops Orlando Atlanta Hartsfield-Jackson

$684Frontier

Sun, Oct 11 - Sat, Oct 17

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

48h 08m2 stops Orlando Raleigh-Durham

6:25 pm - 10:17 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

15h 52m1 stop Orlando

$693Multiple Airlines

Sat, Oct 10 - Mon, Oct 12

11:12 am - 5:30 pmIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

6h 18m1 stop Orlando

6:55 pm - 5:13 pmISP Islip Long Island-IAD Washington, D.C. Dulles Intl

22h 18m2 stops Orlando Atlanta Hartsfield-Jackson

$743Frontier

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 with more confidence.

Which airline is the cheapest to fly from Washington, D.C. Dulles Intl Airport to Islip?: Frontier ($328) and Breeze Airways ($391) are the cheapest airlines to fly round-trip from Washington, D.C. Dulles Intl Airport to Islip according to KAYAK data over the last 5 days.

Find deals

Cheapest flight	$130

One-way 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.

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 $320 to $2,159. That means the highest observed fare was about 7x 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 $170, which is 16% 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 $38 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. 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).

More options for your flight from Dulles Intl to Islip

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IAD - ISP

$130 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)

Cheap flights from Dulles Intl to Islip with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

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

Which airline is the cheapest 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

More options for your flight from Dulles Intl 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 to Islip

Find direct flights to and from Dulles Intl and Islip

Flights from domestic origins to Islip

Flights to other popular destinations

Find deals for your return flight