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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$388 CHEAP FLIGHTS from Washington to Islip

ISP

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

...and more

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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.

Cheapest round-trip

$517

Southwest

Wed 12/17Mon 1/5

SEA - ISP • 2 stops

Cheapest one-way

$388

Frontier

Fri 12/19

SEA - ISP • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Islip!

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.

Round-trip

One-way

Recent round-trip flight deals from Washington to Islip

Wed, Dec 17 - Mon, Jan 5

7:05 am - 10:05 pm

SEA

ISP

12h 00m2 stops

10:55 am - 8:00 pm

ISP

SEA

12h 05m2 stops

$517Southwest

Wed, Mar 25 - Fri, Mar 27

8:20 am - 7:45 pm

SEA

ISP

8h 25m1 stop

7:25 am - 1:26 pm

ISP

SEA

9h 01m1 stop

$930Multiple Airlines

Sat, Mar 28 - Mon, Mar 30

8:20 am - 7:45 pm

SEA

ISP

8h 25m1 stop

7:25 am - 1:26 pm

ISP

SEA

9h 01m1 stop

$1,009Multiple Airlines

Sun, Mar 15 - Wed, Mar 18

8:15 am - 7:45 pm

SEA

ISP

8h 30m1 stop

7:25 am - 1:23 pm

ISP

SEA

8h 58m1 stop

$1,083Multiple Airlines

Wed, Dec 17 - Mon, Jan 5

11:10 pm - 11:05 am

SEA

ISP

8h 55m1 stop

12:30 pm - 11:15 pm

ISP

SEA

13h 45m2 stops

$1,104Multiple Airlines

Wed, Dec 17 - Mon, Jan 5

11:10 pm - 11:05 am

SEA

ISP

8h 55m1 stop

12:30 pm - 9:30 pm

ISP

SEA

12h 00m1 stop

$1,140Multiple Airlines

Fri, Dec 19 - Tue, Dec 23

6:00 am - 7:45 pm

PSC

ISP

10h 45m2 stops

9:59 am - 12:17 am

ISP

PSC

17h 18m2 stops

$2,473Multiple Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$388

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 5% increase in price.

Flight from Seattle 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.

Riverhead

Amagansett

Everything you need to know for your flight to Islip

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Islip

Islip (ISP)

ISP

$388 Find Cheap Flights from Washington to Islip

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

Everything you should know

Cheap Flights from Washington to Islip

Recent round-trip flight deals from Washington to Islip

Recent one-way flight deals from Washington to Islip

Good to know

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?

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Cabin class types available on flights to Washington

Complete your trip to Islip with a hotel stay or car rental

Find direct flights for Islip

Flights to other popular destinations

Flights from domestic origins to Islip

Choose which airport to fly into in Islip

Find deals for your return flight