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Islip

$75+ Cheap flights from George Bush Intcntl (IAH) to Islip, NY (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — ISP
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Find flight deals from George Bush Intcntl to Islip

Cheapest flights from George Bush Intcntl to Islip
Explore the most affordable flight options available from George Bush Intcntl to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 1, 2025.

This CheapOair deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/158:07 pmIAH - ISP
1 stop22h 27mFrontier
Sun 12/218:35 pmISP - IAH
1 stop11h 46mFrontier
Deal found 11/30$184
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:07 pmIAH - ISP
1 stop13h 13mFrontier
Tue 12/98:29 pmISP - IAH
1 stop23h 00mFrontier
Deal found 11/29$208
This CheapOair deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/168:07 pmIAH - ISP
1 stop27h 31mFrontier
Sun 1/118:40 pmISP - IAH
1 stop14h 21mFrontier
Deal found 11/30$218
This CheapOair deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:34 pmIAH - ISP
1 stop18h 03mFrontier
Tue 1/612:55 pmISP - IAH
1 stop22h 06mFrontier
Deal found 11/30$228
This CheapOair deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:07 pmIAH - ISP
1 stop12h 06mFrontier
Mon 12/1510:19 amISP - IAH
1 stop9h 10mFrontier
Deal found 11/30$229
This CheapOair deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:34 pmIAH - ISP
1 stop14h 08mFrontier
Tue 1/2012:00 pmISP - IAH
1 stop10h 57mFrontier
Deal found 11/30$234
This CheapOair deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:34 pmIAH - ISP
1 stop21h 06mFrontier
Sun 12/218:35 pmISP - IAH
1 stop11h 46mFrontier
Deal found 11/28$235
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:34 pmIAH - ISP
1 stop12h 51mFrontier
Sun 1/42:04 pmISP - IAH
1 stop30h 00mFrontier
Deal found 11/29$253
This Frontier deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:07 pmIAH - ISP
1 stop12h 06mFrontier
Sun 12/711:15 amISP - IAH
1 stop8h 19mFrontier
Deal found 11/29$258
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:07 pmIAH - ISP
1 stop13h 13mFrontier
Mon 12/810:19 amISP - IAH
1 stop9h 10mFrontier
Deal found 11/29$259
This Frontier deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:07 pmIAH - ISP
1 stop12h 06mFrontier
Thu 12/1812:20 pmISP - IAH
1 stop7h 44mFrontier
Deal found 11/29$262
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:07 pmIAH - ISP
1 stop12h 06mFrontier
Tue 12/98:29 pmISP - IAH
1 stop23h 00mFrontier
Deal found 11/29$268

Cheap flight deals from George Bush Intcntl to Islip

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$184
(CheapOair)

One-way from

$75
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$300
Provider with most accurate pricing for Houston George Bush Intcntl-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Islip Long Island flights.
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From Houston George Bush Intcntl to Islip Long Island
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One-way flight from Houston George Bush Intcntl to Islip Long Island
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Highest demand for flights based on searches. 5% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 1, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Islip that are best for you.

Fly from

George Bush Intcntl

Fly to

Islip

Route

Depart

Return

Price

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Mon 12/15

8:07 pm-7:34 pm

1 stop22h 27m

Islip Long Island

Sun 12/21

8:35 pm-7:21 am

1 stop11h 46m

$184

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Tue 12/16

8:07 pm-12:38 am

1 stop27h 31m

Islip Long Island

Sun 1/11

8:40 pm-10:01 am

1 stop14h 21m

$218

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 1/29

8:18 pm-8:47 pm

1 stop23h 29m

Islip Long Island

Sun 2/1

7:53 pm-10:13 am

1 stop15h 20m

$218

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Tue 12/30

9:34 pm-4:37 pm

1 stop18h 03m

Islip Long Island

Tue 1/6

12:55 pm-10:01 am

1 stop22h 06m

$228

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 12/12

8:07 pm-9:13 am

1 stop12h 06m

Islip Long Island

Mon 12/15

10:19 am-6:29 pm

1 stop9h 10m

$229

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 12/18

9:34 pm-12:42 pm

1 stop14h 08m

Islip Long Island

Tue 1/20

12:00 pm-9:57 pm

1 stop10h 57m

$234

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Mon 12/29

9:34 pm-11:25 am

1 stop12h 51m

Islip Long Island

Mon 1/5

2:04 pm-10:01 am

1 stop20h 57m

$234

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Mon 12/29

9:34 pm-11:25 am

1 stop12h 51m

Islip Long Island

Sun 1/4

2:04 pm-7:04 pm

1 stop30h 00m

$253

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Tue 12/16

8:07 pm-10:44 pm

1 stop25h 37m

Islip Long Island

Sat 12/20

6:00 am-11:45 am

1 stop30h 45m

$258

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Sun 12/14

8:07 pm-9:13 am

1 stop12h 06m

Islip Long Island

Thu 12/18

12:20 pm-7:04 pm

1 stop7h 44m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 20 results
1
2

Compare providers for flights from George Bush Intcntl to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Islip in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Houston George Bush Intcntl Airport-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Islip, New York flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from George Bush Intcntl to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Islip

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Islip, New York?

Currently, March is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Islip, New York (average of $75). Flying from Houston George Bush Intcntl Airport to Islip, New York in December is currently the most expensive (average of $135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from Houston George Bush Intcntl?

    Located just 7.2 mi from the city center, Islip Long Island is the airport most travelers will use when flying to Islip from Houston George Bush Intcntl. Booking flights from Houston George Bush Intcntl to Long Island (ISP) should be relatively easy as there are 0 daily inbound flights from Houston George Bush Intcntl from 0 different airlines.

  • How long is the flight from Houston George Bush Intcntl Airport to Islip, New York?

    Departing from Houston George Bush Intcntl Airport to Islip, New York will take you 22h 27m. Airlines will cover a distance of 1451 mi.

  • Can I find deals for flights from George Bush Intcntl to Islip that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Islip.

  • Can I find deals for business class flights from George Bush Intcntl to Islip?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Islip, New York?

    Currently, March is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Islip, New York (average of $75). Flying from Houston George Bush Intcntl Airport to Islip, New York in December is currently the most expensive (average of $135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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