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>

$81 CHEAP FLIGHTS from District of Columbia to Islip

ISP

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

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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.

Round-trip

One-way

Last minute

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from District of Columbia to Islip.

Discover the best prices for you by selecting your travel dates on KAYAK.

1:34 pm - 7:41 pmIAD-ISP

6h 07m1 stop

8:51 am - 5:12 pmISP-IAD

8h 21m1 stop

$211Frontier

Find Deal

Thu, Jun 5 - Mon, Jun 9

1:29 pm - 7:36 pmIAD-ISP

6h 07m1 stop

8:21 pm - 12:44 pmISP-IAD

16h 23m1 stop

$242Frontier

Find Deal

Thu, Jun 12 - Sat, Jun 14

6:07 pm - 1:06 pmIAD-ISP

18h 59m1 stop

2:05 pm - 5:22 pmISP-IAD

27h 17m1 stop

$262Frontier

Find Deal

Fri, Jun 20 - Sun, Jun 22

7:00 am - 4:50 pmDCA-ISP

9h 50m1 stop

12:59 pm - 8:49 pmISP-DCA

7h 50m1 stop

$288JetBlue

Find Deal

Tue, May 13 - Sat, May 24

7:00 am - 4:50 pmDCA-ISP

9h 50m1 stop

12:59 pm - 8:49 pmISP-DCA

7h 50m1 stop

$310JetBlue

Find Deal

Fri, May 30 - Sat, May 31

12:55 pm - 10:10 pmDCA-ISP

9h 15m1 stop

5:05 am - 11:25 amISP-DCA

6h 20m1 stop

$315Southwest

Find Deal

Thu, Jun 5 - Mon, Jun 9

1:20 pm - 9:45 pmDCA-ISP

8h 25m1 stop

5:05 am - 11:25 amISP-DCA

6h 20m1 stop

$320Southwest

Find Deal

Wed, Jul 16 - Fri, Jul 18

8:25 am - 11:19 amIAD-ISP

26h 54m1 stop

4:45 pm - 5:21 pmISP-IAD

24h 36m1 stop

$455

Find Deal

Sun, Jun 22 - Wed, Jun 25

8:25 am - 11:02 amIAD-ISP

26h 37m1 stop

12:27 pm - 1:59 pmISP-IAD

25h 32m1 stop

$585Breeze Airways

Find Deal

Sun, May 11 - Wed, May 14

8:25 am - 11:19 amIAD-ISP

26h 54m1 stop

2:12 pm - 9:09 pmISP-IAD

30h 57m3 stops

$808

Find Deal

Thu, Jun 12 - Sat, Jun 14

Useful Info

Low season	January
High season	July
Cheapest flight	$81

Best time to beat the crowds with an average 5% drop in price.

Most popular time to fly and prices are also 7% 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)

ISP

$81 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