SEA - ISP

$202 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 10/10. 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

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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41,299,237 searches in the past 7 days on KAYAK

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Flights Deals
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Flights 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

Wed, Aug 6 - Wed, Aug 13
Southwest Logo
11:10 pm - 12:00 pmSEA-ISP
9h 50m2 stops
Southwest Logo
4:00 pm - 11:35 pmISP-SEA
10h 35m2 stops
$347Southwest
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
9:10 pm - 12:00 pmSEA-ISP
11h 50m1 stop
Southwest Logo
4:00 pm - 11:10 pmISP-SEA
10h 10m2 stops
$348Southwest
Find Deal
Fri, Sep 12 - Mon, Sep 15
Southwest Logo
11:10 pm - 12:05 pmSEA-ISP
9h 55m2 stops
Southwest Logo
3:05 pm - 9:30 pmISP-SEA
9h 25m1 stop
$370Southwest
Find Deal
Thu, Aug 21 - Sun, Aug 24
Southwest Logo
6:30 am - 10:55 pmSEA-ISP
13h 25m2 stops
Southwest Logo
6:00 am - 3:00 pmISP-SEA
12h 00m2 stops
$375Southwest
Find Deal
Thu, Aug 21 - Sun, Aug 24
Southwest Logo
6:30 am - 10:55 pmSEA-ISP
13h 25m2 stops
Southwest Logo
6:00 am - 12:15 pmISP-SEA
9h 15m1 stop
$376Southwest
Find Deal
Thu, Aug 21 - Sun, Aug 24
Southwest Logo
6:30 am - 10:55 pmSEA-ISP
13h 25m2 stops
Southwest Logo
6:00 am - 3:00 pmISP-SEA
12h 00m2 stops
$381Southwest
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
9:10 pm - 12:00 pmSEA-ISP
11h 50m1 stop
Southwest Logo
6:05 am - 11:15 amISP-SEA
8h 10m1 stop
$387Southwest
Find Deal
Thu, Aug 21 - Sun, Aug 24
Southwest Logo
9:10 pm - 12:00 pmSEA-ISP
11h 50m1 stop
Southwest Logo
6:00 am - 12:15 pmISP-SEA
9h 15m1 stop
$398Southwest
Find Deal
Thu, Jul 10 - Tue, Jul 15
Logo
5:30 pm - 1:32 pmSEA-ISP
41h 02m3 stops
Logo
1:55 pm - 4:25 pmISP-SEA
29h 30m3 stops
$745
Find Deal
Thu, Jul 10 - Tue, Jul 15
Logo
9:13 pm - 8:01 pmSEA-ISP
19h 48m1 stop
Logo
2:19 pm - 10:04 pmISP-SEA
10h 45m1 stop
$859
Find Deal
Useful Info

Good to know

Cheapest flight$202
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 $202 for a one-way ticket and $347 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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