ISP

$261 Find Cheap Flights from Washington to Islip - Compare and Save

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 8/28. 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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Flight Deals

Cheap Flights from Washington to Islip

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

Wed, Sep 16 - Tue, Sep 22
Southwest Logo
10:30 pm - 9:40 am
SEA
-
ISP
8h 10m
1 stop
Southwest Logo
6:05 am - 1:00 pm
ISP
-
SEA
9h 55m
1 stop
$363Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
10:30 pm - 9:40 am
SEA
-
ISP
8h 10m
1 stop
Southwest Logo
3:20 pm - 11:05 pm
ISP
-
SEA
10h 45m
2 stops
$368Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
7:10 am - 9:05 pm
SEA
-
ISP
10h 55m
2 stops
Southwest Logo
3:20 pm - 11:05 pm
ISP
-
SEA
10h 45m
2 stops
$373Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
10:30 pm - 9:40 am
SEA
-
ISP
8h 10m
1 stop
Southwest Logo
6:05 am - 1:00 pm
ISP
-
SEA
9h 55m
1 stop
$381Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
10:30 pm - 9:40 am
SEA
-
ISP
8h 10m
1 stop
Southwest Logo
3:20 pm - 11:05 pm
ISP
-
SEA
10h 45m
2 stops
$386Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
7:10 am - 9:05 pm
SEA
-
ISP
10h 55m
2 stops
Southwest Logo
12:55 pm - 8:25 pm
ISP
-
SEA
10h 30m
2 stops
$391Southwest
Thu, Sep 3 - Thu, Sep 10
Southwest Logo
10:45 pm - 9:40 am
PDX
-
ISP
7h 55m
1 stop
Southwest Logo
10:20 am - 3:00 pm
ISP
-
PDX
7h 40m
1 stop
$467Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
10:30 pm - 9:40 am
SEA
-
ISP
8h 10m
1 stop
Southwest Logo
6:05 am - 1:00 pm
ISP
-
SEA
9h 55m
1 stop
$467Southwest
Tue, Oct 13 - Wed, Oct 21
Multiple Airlines Logo
6:00 pm - 11:05 am
PSC
-
ISP
14h 05m
2 stops
Multiple Airlines Logo
12:30 pm - 11:52 pm
ISP
-
PSC
14h 22m
2 stops
$1,080Multiple Airlines
Mon, Oct 12 - Wed, Oct 21
Multiple Airlines Logo
6:00 pm - 4:10 pm
PSC
-
ISP
19h 10m
2 stops
Multiple Airlines Logo
12:30 pm - 11:52 pm
ISP
-
PSC
14h 22m
2 stops
$1,084Multiple Airlines
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Good to know

Low seasonFebruary
Cheapest flight$261
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from Seattle to Islip

FAQs for booking flights from Washington to Islip

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Washington 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 Washington 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 Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington 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)