ISP

$157 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 9/18. 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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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 amSEA  Seattle/Tacoma Intl-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
Southwest Logo
6:05 am - 1:00 pmISP  Islip Long Island-SEA Seattle/Tacoma Intl
9h 55m1 stop Baltimore/Washington
$477Southwest
Tue, Sep 8 - Tue, Sep 15
Southwest Logo
10:45 pm - 10:15 amPDX  Portland-ISP Islip Long Island
8h 30m1 stop Baltimore/Washington
Southwest Logo
6:05 am - 10:40 amISP  Islip Long Island-PDX Portland
7h 35m1 stop Baltimore/Washington
$477Southwest
Wed, Sep 16 - Tue, Sep 22
Southwest Logo
10:30 pm - 9:40 amSEA  Seattle/Tacoma Intl-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
Southwest Logo
3:20 pm - 11:10 pmISP  Islip Long Island-SEA Seattle/Tacoma Intl
10h 50m2 stops Baltimore/Washington Denver Intl
$482Southwest
Thu, Sep 24 - Sat, Oct 3
Southwest Logo
10:30 pm - 9:40 amSEA  Seattle/Tacoma Intl-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
Southwest Logo
6:15 am - 1:55 pmISP  Islip Long Island-SEA Seattle/Tacoma Intl
10h 40m2 stops Baltimore/Washington Chicago Midway
$482Southwest
Tue, Sep 8 - Tue, Sep 15
Southwest Logo
10:45 pm - 10:15 amPDX  Portland-ISP Islip Long Island
8h 30m1 stop Baltimore/Washington
Southwest Logo
3:20 pm - 10:15 pmISP  Islip Long Island-PDX Portland
9h 55m2 stops Baltimore/Washington Denver Intl
$482Southwest
Tue, Sep 8 - Tue, Sep 15
Southwest Logo
11:30 pm - 12:10 pmPDX  Portland-ISP Islip Long Island
9h 40m2 stops Chicago Midway Baltimore/Washington
Southwest Logo
12:55 pm - 8:45 pmISP  Islip Long Island-PDX Portland
10h 50m2 stops Baltimore/Washington San Jose
$487Southwest
Sun, Nov 8 - Sat, Nov 14
Southwest Logo
7:00 pm - 11:45 amPDX  Portland-ISP Islip Long Island
13h 45m2 stops Phoenix Sky Harbor Intl Baltimore/Washington
Southwest Logo
6:00 am - 5:45 pmISP  Islip Long Island-PDX Portland
14h 45m2 stops Baltimore/Washington Phoenix Sky Harbor Intl
$493Southwest
Thu, Sep 24 - Sat, Oct 3
Multiple Airlines Logo
11:42 pm - 12:30 pmSEA  Seattle/Tacoma Intl-ISP Islip Long Island
9h 48m1 stop Boston Logan Intl
Multiple Airlines Logo
3:10 pm - 10:37 pmISP  Islip Long Island-SEA Seattle/Tacoma Intl
10h 27m1 stop Boston Logan Intl
$904Multiple Airlines
Mon, Oct 12 - Fri, Oct 23
Multiple Airlines Logo
11:00 pm - 11:05 amSEA  Seattle/Tacoma Intl-ISP Islip Long Island
9h 05m1 stop Boston Logan Intl
Multiple Airlines Logo
9:59 am - 10:38 pmISP  Islip Long Island-SEA Seattle/Tacoma Intl
15h 39m1 stop Boston Logan Intl
$965Multiple Airlines
Sat, Sep 26 - Thu, Oct 1
Multiple Airlines Logo
9:00 am - 6:35 pmPDX  Portland-ISP Islip Long Island
30h 35m3 stops San Francisco Washington, D.C. Dulles Intl Boston Logan Intl
Multiple Airlines Logo
7:31 am - 12:34 amISP  Islip Long Island-PDX Portland
20h 03m2 stops Boston Logan Intl San Francisco
$970Multiple Airlines
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Good to know

Low season

February

Cheapest flight

$157
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 20% increase in price.
Flight from Portland 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)