DCA - ISP

$200 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 2/5. 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
$347
Southwest
Wed 6/10Mon 6/15
DCA - ISP • 1 stop
Cheapest one-way
$200
Multiple Airlines
Thu 2/5
DCA - ISP • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
Flight Deals
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

Wed, Jun 10 - Mon, Jun 15
Southwest Logo
4:40 pm - 10:35 pm
DCA
-
ISP
5h 55m
1 stop
Southwest Logo
5:20 am - 12:00 pm
ISP
-
DCA
6h 40m
1 stop
$347Southwest
Fri, Mar 6 - Sun, Mar 8
Southwest Logo
6:05 am - 4:30 pm
DCA
-
ISP
10h 25m
1 stop
Southwest Logo
12:20 pm - 8:50 pm
ISP
-
DCA
8h 30m
1 stop
$368Southwest
Fri, Mar 6 - Sun, Mar 8
Southwest Logo
6:05 am - 4:30 pm
DCA
-
ISP
10h 25m
1 stop
Southwest Logo
12:20 pm - 10:40 pm
ISP
-
DCA
10h 20m
2 stops
$373Southwest
Fri, Feb 20 - Fri, Feb 27
Southwest Logo
7:30 am - 4:45 pm
DCA
-
ISP
9h 15m
1 stop
Southwest Logo
6:35 am - 2:55 pm
ISP
-
DCA
8h 20m
1 stop
$418Southwest
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
7:30 am - 4:45 pm
DCA
-
ISP
9h 15m
1 stop
Southwest Logo
11:55 am - 10:35 pm
ISP
-
DCA
10h 40m
2 stops
$433Southwest
Thu, Jul 9 - Sun, Jul 12
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
$578Southwest
Sun, Feb 1 - Mon, Feb 2
Southwest Logo
7:30 am - 1:30 pm
DCA
-
ISP
6h 00m
1 stop
Southwest Logo
9:15 am - 6:00 pm
ISP
-
DCA
8h 45m
2 stops
$589Southwest
Sun, Feb 1 - Mon, Feb 2
Southwest Logo
7:30 am - 1:30 pm
DCA
-
ISP
6h 00m
1 stop
Southwest Logo
9:15 am - 3:45 pm
ISP
-
DCA
6h 30m
1 stop
$609Southwest
Tue, Jun 30 - Sun, Jul 5
Southwest Logo
4:40 pm - 10:35 pm
DCA
-
ISP
5h 55m
1 stop
Southwest Logo
6:45 am - 3:50 pm
ISP
-
DCA
9h 05m
1 stop
$628Southwest
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
12:45 pm - 11:10 pm
DCA
-
ISP
10h 25m
2 stops
Southwest Logo
11:55 am - 10:35 pm
ISP
-
DCA
10h 40m
2 stops
$634Southwest
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 ($347) and JetBlue ($671).

Find deals

Good to know

Cheapest flight$200
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 $200 for a one-way ticket and $347 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)