SEA - ISP

$413 Find Cheap Flights from Seattle 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 from Seattle to Islip departing on 12/14. 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 Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Islip, 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 Seattle to Islip, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Islip (SEA-ISP)

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

Sun, Nov 16 - Wed, Nov 19
Frontier Logo
2:22 pm - 9:09 amSEA-ISP
15h 47m2 stops
Frontier Logo
4:58 pm - 11:56 amISP-SEA
21h 58m2 stops
$459Frontier
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Thu, Jan 1 - Fri, Jan 9
Southwest Logo
6:15 am - 10:05 pmSEA-ISP
12h 50m2 stops
Southwest Logo
12:40 pm - 10:30 pmISP-SEA
12h 50m2 stops
$577Southwest
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Wed, Dec 31 - Fri, Jan 9
Multiple Airlines Logo
8:00 am - 11:25 amSEA-ISP
24h 25m2 stops
Multiple Airlines Logo
12:40 pm - 10:17 pmISP-SEA
12h 37m1 stop
$859Multiple Airlines
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Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
8:20 am - 7:45 pmSEA-ISP
8h 25m1 stop
Multiple Airlines Logo
7:30 am - 1:23 pmISP-SEA
8h 53m1 stop
$930Multiple Airlines
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Thu, Jan 1 - Fri, Jan 9
Multiple Airlines Logo
11:59 pm - 7:45 pmSEA-ISP
16h 46m2 stops
Multiple Airlines Logo
7:30 am - 10:43 pmISP-SEA
18h 13m3 stops
$940Multiple Airlines
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Sat, Feb 7 - Tue, Feb 17
Multiple Airlines Logo
7:55 am - 7:45 pmSEA-ISP
8h 50m1 stop
Multiple Airlines Logo
7:30 am - 1:23 pmISP-SEA
8h 53m1 stop
$944Multiple Airlines
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Thu, Jan 1 - Fri, Jan 9
Multiple Airlines Logo
11:25 pm - 11:04 amSEA-ISP
8h 39m1 stop
Multiple Airlines Logo
9:59 am - 10:17 pmISP-SEA
15h 18m1 stop
$949Multiple Airlines
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Sat, Nov 15 - Wed, Nov 19
Multiple Airlines Logo
11:30 pm - 4:15 pmSEA-ISP
13h 45m2 stops
Multiple Airlines Logo
7:30 am - 10:28 pmISP-SEA
17h 58m3 stops
$950Multiple Airlines
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Sun, Nov 16 - Wed, Nov 19
Multiple Airlines Logo
1:20 pm - 11:04 amSEA-ISP
18h 44m2 stops
Multiple Airlines Logo
7:30 am - 10:28 pmISP-SEA
17h 58m3 stops
$954Multiple Airlines
Find Deal
Thu, Feb 12 - Tue, Feb 17
Multiple Airlines Logo
8:20 am - 7:45 pmSEA-ISP
8h 25m1 stop
Multiple Airlines Logo
7:30 am - 1:23 pmISP-SEA
8h 53m1 stop
$964Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
$459
Frontier
Sun 11/16Wed 11/19
SEA - ISP • 2 stops
Cheapest one-way
$413
Multiple Airlines
Sun 12/14
SEA - ISP • 1 stop
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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 Islip!
Booking Insights

KAYAK's insights & trends for Seattle to Islip flights

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

Which airlines provide the cheapest flights from Seattle to Islip?

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 Seattle to Islip were found on Frontier ($459) and Southwest ($577).

Find deals

Good to know

Cheapest flight$413
Flight from Seattle to Islip

When to book flights from Seattle to Islip

Are your dates flexible? Find out the best times to travel from Seattle to Islip 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 flights from Seattle to Islip

  • What is the cheapest flight from Seattle to Islip?

    In the last 3 days, the lowest price for a flight from Seattle to Islip was $413 for a one-way ticket and $459 for a round-trip.

  • Do I need a passport to fly between Seattle and Islip?

    A passport is not required to fly from Seattle to Islip.

  • Which aircraft models fly most regularly from Seattle to Islip?

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

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Seattle 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 Seattle 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 Seattle with another airline. Booking your flights between Seattle and ISP 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 Seattle 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 Seattle 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 Seattle to Islip

Information on your arrival and departure airports

Seattle (SEA)
Islip (ISP)

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