DCA - ISP

$132 Find Cheap Flights from Reagan Washington National Airport to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Islip departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Islip, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$325
Southwest
Sat 5/16Tue 5/19
DCA - ISP • 1 stop
Cheapest one-way
$114
Southwest
Tue 9/8
DCA - ISP • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Reagan-National and Islip. You'll need at least 1 connection.
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We hope you love your trip to Islip!
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Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Islip (DCA-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National 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.

Recent round-trip flight deals from Reagan-National to Islip

Sat, May 16 - Tue, May 19
Southwest Logo
3:55 pm - 10:40 pm
DCA
-
ISP
6h 45m
1 stop
Southwest Logo
2:30 pm - 10:25 pm
ISP
-
DCA
7h 55m
2 stops
$325Southwest
Fri, Jun 5 - Fri, Jun 12
Southwest Logo
5:25 pm - 11:40 pm
DCA
-
ISP
6h 15m
1 stop
Southwest Logo
5:20 am - 12:00 pm
ISP
-
DCA
6h 40m
1 stop
$347Southwest
Sat, Jun 13 - Sun, Jun 14
Southwest Logo
2:40 pm - 10:55 pm
DCA
-
ISP
8h 15m
1 stop
Southwest Logo
6:45 am - 3:50 pm
ISP
-
DCA
9h 05m
1 stop
$352Southwest
Sat, Jun 13 - Sun, Jun 14
Southwest Logo
12:00 pm - 10:55 pm
DCA
-
ISP
10h 55m
2 stops
Southwest Logo
6:45 am - 3:50 pm
ISP
-
DCA
9h 05m
1 stop
$358Southwest
Thu, May 21 - Thu, May 28
Southwest Logo
6:00 am - 12:05 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
5:10 pm - 10:50 pm
ISP
-
DCA
5h 40m
1 stop
$361Southwest
Thu, Jun 11 - Sun, Jun 14
Southwest Logo
5:25 pm - 11:40 pm
DCA
-
ISP
6h 15m
1 stop
Southwest Logo
6:45 am - 3:50 pm
ISP
-
DCA
9h 05m
1 stop
$362Southwest
Thu, May 14 - Mon, May 18
Southwest Logo
4:25 pm - 10:30 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
6:50 am - 3:40 pm
ISP
-
DCA
8h 50m
1 stop
$367Southwest
Fri, Aug 14 - Tue, Aug 18
Southwest Logo
6:00 am - 11:55 am
DCA
-
ISP
5h 55m
1 stop
Southwest Logo
10:30 am - 10:00 pm
ISP
-
DCA
11h 30m
1 stop
$372Southwest
Tue, Jun 2 - Sat, Jun 6
JetBlue Logo
7:10 am - 1:39 pm
DCA
-
ISP
6h 29m
1 stop
JetBlue Logo
1:36 pm - 7:59 pm
ISP
-
DCA
6h 23m
1 stop
$376JetBlue
Fri, Oct 16 - Tue, Oct 20
Southwest Logo
6:10 am - 4:00 pm
DCA
-
ISP
9h 50m
2 stops
Southwest Logo
1:10 pm - 10:55 pm
ISP
-
DCA
9h 45m
1 stop
$378Southwest
Booking Insights

KAYAK's insights & trends for Reagan-National to Islip flights

Get data-powered insights and trends into flights from Reagan-National to Islip to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Reagan Washington National Airport to Islip?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Reagan Washington National Airport to Islip were found on Southwest ($325) and JetBlue ($376).

Find deals

Good to know

Cheapest flight$114
Flight from Reagan Washington National Airport to Islip

When to book flights from Reagan-National to Islip

Are your dates flexible? Find out the best times to travel from Reagan-National 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.

FAQs for booking Reagan Washington National Airport to Islip flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Islip?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Islip was $114 for a one-way ticket and $325 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Islip?

    No, a passport isn't needed to fly from Reagan Washington National Airport to Islip. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Reagan Washington National Airport to Islip?

    Reagan Washington National Airport and Islip are both served by 1 main airport. You will leave Reagan Washington National Airport from Washington, D.C. Reagan-National and will be arriving at Islip Long Island.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Islip?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport 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 Reagan Washington National Airport to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Reagan Washington National Airport 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 Reagan Washington National Airport 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 Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport 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 Reagan Washington National Airport 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 from Reagan-National to Islip

Information on your arrival and departure airports

Reagan Washington National Airport (DCA)
Islip (ISP)