ISP

$401 Find Cheap Flights from Idaho to Islip - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Islip departing on 9/22. 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 Idaho to Islip

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

Tue, Sep 22 - Wed, Sep 30
Southwest Logo
6:25 am - 9:10 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
12h 45m2 stops San Diego Baltimore/Washington
Southwest Logo
3:20 pm - 11:25 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
10h 05m2 stops Baltimore/Washington Phoenix Sky Harbor Intl
$401Southwest
Wed, Sep 23 - Wed, Sep 30
Southwest Logo
6:25 am - 9:10 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
12h 45m2 stops San Diego Baltimore/Washington
Southwest Logo
12:55 pm - 11:15 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
12h 20m2 stops Baltimore/Washington Denver Intl
$423Southwest
Wed, Nov 25 - Tue, Dec 8
Multiple Airlines Logo
7:21 pm - 8:01 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
22h 40m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
2:19 pm - 3:05 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
26h 46m2 stops Boston Logan Intl Seattle/Tacoma Intl
$955Multiple Airlines
Thu, Nov 26 - Fri, Dec 4
Multiple Airlines Logo
6:23 am - 8:01 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
11h 38m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
4:33 pm - 3:05 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
24h 32m2 stops Boston Logan Intl Seattle/Tacoma Intl
$962Multiple Airlines
Thu, Nov 26 - Fri, Dec 4
Multiple Airlines Logo
6:23 am - 8:01 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
11h 38m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
4:33 pm - 3:05 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
24h 32m2 stops Boston Logan Intl Seattle/Tacoma Intl
$972Multiple Airlines
Thu, Nov 26 - Thu, Dec 3
Multiple Airlines Logo
6:23 am - 10:58 amBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
26h 35m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
2:19 pm - 3:05 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
26h 46m2 stops Boston Logan Intl Seattle/Tacoma Intl
$983Multiple Airlines
Thu, Nov 26 - Thu, Dec 3
Multiple Airlines Logo
6:23 am - 10:58 amBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
26h 35m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
2:19 pm - 3:05 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
26h 46m2 stops Boston Logan Intl Seattle/Tacoma Intl
$993Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
Multiple Airlines Logo
1:15 pm - 10:56 amBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
19h 41m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
7:31 am - 6:07 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
12h 36m2 stops Boston Logan Intl Seattle/Tacoma Intl
$1,017Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
7:48 pm - 5:41 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
19h 53m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
7:31 am - 6:07 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
12h 36m2 stops Boston Logan Intl Seattle/Tacoma Intl
$1,018Multiple Airlines
Tue, Sep 22 - Thu, Oct 1
Multiple Airlines Logo
7:48 pm - 5:41 pmBOI  Boise Air Term. Gowen Fld-ISP Islip Long Island
19h 53m2 stops Seattle/Tacoma Intl Boston Logan Intl
Multiple Airlines Logo
2:16 pm - 11:44 pmISP  Islip Long Island-BOI Boise Air Term. Gowen Fld
11h 28m2 stops Boston Logan Intl Seattle/Tacoma Intl
$1,025Multiple Airlines
Useful Info

Good to know

Low season

February

Cheapest flight

$401
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 Boise to Islip

FAQs for booking flights from Idaho to Islip

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

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

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

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

Information on the airport you'll fly into in Islip

Islip (ISP)