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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$53 CHEAP FLIGHTS from District of Columbia to Islip

ISP

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Cheap Flights from District of Columbia to Islip

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from District of Columbia to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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 9 - Tue, Sep 16

6:55 am - 1:15 pmDCA-ISP

6h 20m1 stop

4:00 pm - 10:00 pmISP-DCA

6h 00m1 stop

$177Southwest

Find Deal

Tue, Sep 9 - Tue, Sep 16

12:50 pm - 9:05 pmDCA-ISP

8h 15m1 stop

2:05 pm - 10:00 pmISP-DCA

7h 55m2 stops

$182Southwest

Find Deal

Tue, Sep 9 - Tue, Sep 16

6:55 am - 3:15 pmDCA-ISP

8h 20m2 stops

2:05 pm - 10:00 pmISP-DCA

7h 55m2 stops

$187Southwest

Find Deal

Wed, Sep 10 - Sat, Sep 13

12:50 pm - 9:05 pmDCA-ISP

8h 15m1 stop

6:05 am - 5:00 pmISP-DCA

10h 55m1 stop

$219Southwest

Find Deal

Sat, Aug 9 - Sun, Aug 10

5:59 pm - 1:04 pmIAD-ISP

19h 05m1 stop

7:49 pm - 8:05 amISP-IAD

12h 16m1 stop

$227

Find Deal

Thu, Aug 21 - Tue, Aug 26

9:33 pm - 9:13 amIAD-ISP

11h 40m1 stop

6:05 am - 9:39 pmISP-IAD

15h 34m2 stops

$242Frontier

Find Deal

Thu, Sep 11 - Mon, Sep 15

6:57 pm - 10:40 amIAD-ISP

15h 43m1 stop

5:12 pm - 7:46 pmISP-IAD

26h 34m2 stops

$260Frontier

Find Deal

Thu, Jul 24 - Sun, Jul 27

1:29 pm - 11:47 pmIAD-ISP

10h 18m1 stop

7:49 pm - 8:05 amISP-IAD

12h 16m1 stop

$269

Find Deal

Thu, Jul 17 - Wed, Jul 23

7:00 am - 10:51 amDCA-ISP

27h 51m1 stop

1:51 pm - 11:00 amISP-DCA

21h 09m1 stop

$423JetBlue

Find Deal

Thu, Aug 21 - Mon, Aug 25

9:59 am - 10:51 amDCA-ISP

24h 52m1 stop

1:21 pm - 11:15 amISP-DCA

21h 54m1 stop

$460JetBlue

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$53

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly and prices are also 1% lower on average.

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.

Everything you need to know for your flight to Islip

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Islip

Islip (ISP)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

ISP

$53 Find Cheap Flights from District of Columbia to Islip

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

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

Good to know

FAQs for booking flights from District of Columbia 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.

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Cabin class types available on flights to District of Columbia

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

Find direct flights for 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