ISP

$138 Find Cheap Flights from District of Columbia 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 to Islip departing on 2/26. 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

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Everything you should know

Cheapest round-trip
$259
Multiple Airlines
Wed 4/29Fri 5/15
IAD - ISP • 2 stops
Cheapest one-way
$138
Frontier
Thu 2/26
IAD - ISP • 2 stops
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We hope you love your trip to Islip!
Flight Deals
Useful Info
Flight Deals

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.

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

Wed, Apr 29 - Fri, May 15
Multiple Airlines Logo
6:20 am - 6:46 pm
IAD
-
ISP
36h 26m
2 stops
Multiple Airlines Logo
4:07 pm - 7:27 am
ISP
-
IAD
15h 20m
1 stop
$259Multiple Airlines
Sat, Feb 28 - Wed, Mar 4
Frontier Logo
10:29 am - 7:48 am
IAD
-
ISP
21h 19m
2 stops
Frontier Logo
9:33 am - 9:25 am
ISP
-
IAD
23h 52m
1 stop
$266Frontier
Fri, May 29 - Mon, Jun 1
Southwest Logo
6:00 am - 12:05 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
6:50 am - 3:40 pm
ISP
-
DCA
8h 50m
1 stop
$327Southwest
Tue, Jun 16 - Tue, Jun 23
JetBlue Logo
6:00 am - 11:35 am
DCA
-
ISP
5h 35m
1 stop
JetBlue Logo
12:25 pm - 7:30 pm
ISP
-
DCA
7h 05m
1 stop
$335JetBlue
Mon, Jun 15 - Tue, Jun 23
JetBlue Logo
6:00 am - 11:35 am
DCA
-
ISP
5h 35m
1 stop
JetBlue Logo
12:25 pm - 7:30 pm
ISP
-
DCA
7h 05m
1 stop
$353JetBlue
Fri, Apr 17 - Sun, Apr 19
Southwest Logo
6:00 am - 12:05 pm
DCA
-
ISP
6h 05m
1 stop
Southwest Logo
1:50 pm - 10:50 pm
ISP
-
DCA
9h 00m
1 stop
$362Southwest
Sun, Apr 5 - Tue, Apr 7
Frontier Logo
6:39 pm - 12:41 am
IAD
-
ISP
6h 02m
1 stop
Frontier Logo
8:30 am - 5:31 pm
ISP
-
IAD
9h 01m
1 stop
$385Frontier
Sat, Aug 1 - Mon, Aug 31
Southwest Logo
2:40 pm - 10:55 pm
DCA
-
ISP
8h 15m
1 stop
Southwest Logo
1:15 pm - 11:55 pm
ISP
-
DCA
10h 40m
2 stops
$403Southwest
Sat, Aug 1 - Mon, Aug 31
Southwest Logo
2:40 pm - 10:55 pm
DCA
-
ISP
8h 15m
1 stop
Southwest Logo
5:00 pm - 11:55 pm
ISP
-
DCA
6h 55m
1 stop
$408Southwest
Sat, Feb 28 - Wed, Mar 4
Southwest Logo
7:30 am - 2:20 pm
DCA
-
ISP
6h 50m
1 stop
Southwest Logo
9:15 am - 3:45 pm
ISP
-
DCA
6h 30m
1 stop
$429Southwest
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$138
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Washington Dulles Airport to Islip

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.

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Amagansett

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Islip (ISP)