How does KAYAK find such low prices on flights from District of Columbia to Islip?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Islip.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Islip?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from District of Columbia to Islip?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Islip?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$100 CHEAP FLIGHTS from District of Columbia to Islip

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Flight Deals

Cheap Flights from District of Columbia to Islip

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 District of Columbia 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

$213Frontier

Wed, Sep 9 - Sat, Sep 12

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

5h 46m1 stop Orlando

5:43 pm - 10:27 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 44m1 stop Orlando

$232Frontier

Thu, Sep 17 - Sat, Sep 19

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

5h 46m1 stop Orlando

5:43 pm - 10:27 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

16h 44m1 stop Orlando

$235Frontier

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

Sat, Sep 12 - Mon, Sep 14

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

Fri, Oct 2 - Sun, Oct 4

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 District of Columbia to Islip

Thu, Aug 27 - Sat, Aug 29

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

6h 33m1 stop Tampa

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

15h 57m1 stop Tampa

$320Frontier

Wed, Aug 26 - Sat, Aug 29

11:05 am - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

22h 48m1 stop Orlando

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

15h 57m1 stop Tampa

$326Frontier

Fri, Aug 28 - Mon, Aug 31

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

6h 33m1 stop Tampa

7:09 pm - 10:07 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

14h 58m1 stop Orlando

$335Frontier

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

14h 41m1 stop Orlando

$340Frontier

Mon, Aug 24 - Mon, Aug 31

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

7h 29m1 stop Orlando

7:09 pm - 10:07 amISP Islip Long Island-IAD Washington, D.C. Dulles Intl

14h 58m1 stop Orlando

$350Frontier

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

Thu, Aug 27 - 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

$358Frontier

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

Wed, Aug 26 - Sat, Aug 29

11:05 am - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

22h 48m1 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

$432Multiple Airlines

Wed, Aug 26 - Wed, Sep 2

11:05 am - 9:53 amIAD Washington, D.C. Dulles Intl-ISP Islip Long Island

22h 48m1 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

$439Multiple Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$100

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 18% increase in price.

Flight from Washington Dulles Airport to Islip

How does KAYAK find such low prices on flights from District of Columbia to Islip?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Islip.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Islip?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from District of Columbia to Islip?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Islip?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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Islip (ISP)

ISP

$100 Find Cheap Flights from District of Columbia to Islip - Compare and Save

Cheap Flights from District of Columbia to Islip

Recent round-trip flight deals from District of Columbia to Islip

Recent one-way flight deals from District of Columbia to Islip

Recent last minute flight deals from District of Columbia to Islip

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Cheapest flight

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Everything you need to know for your flight to Islip

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

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