ISP - DCA

$157 Find Cheap Flights from Islip to Reagan Washington National Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Reagan-National departing on 8/5. 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 Washington, D.C. Reagan-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Washington, D.C., 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 Islip to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$305
Southwest
Thu 5/14Sun 5/17
ISP - DCA • 1 stop
Cheapest one-way
$157
JetBlue
Wed 8/5
ISP - DCA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Islip and Reagan-National. You'll need at least 1 connection.
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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 Reagan-National!
Flight Deals
Booking Insights
Flight Deals

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

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

Thu, May 14 - Sun, May 17
Southwest Logo
5:10 pm - 10:50 pm
ISP
-
DCA
5h 40m
1 stop
Southwest Logo
1:00 pm - 11:45 pm
DCA
-
ISP
10h 45m
1 stop
$305Southwest
Wed, May 13 - Fri, May 15
Southwest Logo
6:55 am - 3:45 pm
ISP
-
DCA
8h 50m
1 stop
Southwest Logo
4:25 pm - 10:30 pm
DCA
-
ISP
6h 05m
1 stop
$327Southwest
Wed, May 13 - Fri, May 15
Southwest Logo
2:30 pm - 10:00 pm
ISP
-
DCA
7h 30m
2 stops
Southwest Logo
4:25 pm - 10:30 pm
DCA
-
ISP
6h 05m
1 stop
$332Southwest
Sat, Mar 7 - Wed, Mar 11
Southwest Logo
12:15 pm - 7:55 pm
ISP
-
DCA
7h 40m
1 stop
Southwest Logo
6:00 am - 1:40 pm
DCA
-
ISP
7h 40m
1 stop
$429Southwest
Tue, Mar 10 - Sat, Mar 14
Southwest Logo
6:10 am - 12:00 pm
ISP
-
DCA
5h 50m
1 stop
Southwest Logo
1:10 pm - 11:25 pm
DCA
-
ISP
10h 15m
1 stop
$434Southwest
Tue, Mar 10 - Sat, Mar 14
Southwest Logo
2:20 pm - 10:35 pm
ISP
-
DCA
8h 15m
2 stops
Southwest Logo
1:10 pm - 11:25 pm
DCA
-
ISP
10h 15m
1 stop
$440Southwest
Sun, Mar 8 - Thu, Mar 12
Southwest Logo
12:20 pm - 8:50 pm
ISP
-
DCA
8h 30m
1 stop
Southwest Logo
1:00 pm - 10:40 pm
DCA
-
ISP
9h 40m
1 stop
$474Southwest
Tue, Mar 10 - Sat, Mar 14
JetBlue Logo
1:25 pm - 7:53 pm
ISP
-
DCA
6h 28m
1 stop
JetBlue Logo
3:00 pm - 11:47 pm
DCA
-
ISP
8h 47m
1 stop
$478JetBlue
Tue, Mar 24 - Thu, Mar 26
Southwest Logo
6:10 am - 12:00 pm
ISP
-
DCA
5h 50m
1 stop
Southwest Logo
6:05 am - 4:30 pm
DCA
-
ISP
10h 25m
1 stop
$525Southwest
Tue, Mar 24 - Thu, Mar 26
Southwest Logo
2:20 pm - 10:35 pm
ISP
-
DCA
8h 15m
2 stops
Southwest Logo
6:05 am - 4:30 pm
DCA
-
ISP
10h 25m
1 stop
$530Southwest
Booking Insights

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

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

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

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 Islip to Reagan Washington National Airport were found on Southwest ($305) and JetBlue ($478).

Find deals

Good to know

Cheapest flight$157
Flight from Islip to Reagan Washington National Airport

When to book flights from Islip to Reagan-National

Are your dates flexible? Find out the best times to travel from Islip to Reagan-National 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 Islip to Reagan Washington National Airport flights

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

    In the last 3 days, the lowest price for a flight from Islip to Washington, D.C. Reagan-National Airport was $157 for a one-way ticket and $305 for a round-trip.

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

    No

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

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

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

    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 Islip to Reagan Washington National Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from Islip 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 Islip to Reagan Washington National Airport?

    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 Reagan Washington National Airport with an airline and back to Islip with another airline. Booking your flights between Islip and DCA 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 Islip to Reagan Washington National Airport?

    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 Reagan Washington National Airport from Islip 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 Islip to Reagan-National

Information on your arrival and departure airports

Islip (ISP)
Reagan-National (DCA)