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George Bush Intcntl

$65+ Cheap flights from Islip, NY (ISP) to George Bush Intcntl (IAH)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — IAH
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Islip to George Bush Intcntl

Cheapest flights from Islip to George Bush Intcntl
Explore the most affordable flight options available from Islip to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This CheapOair deal was found by Cheapflights users on 12/9. 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.
mié. 12/106:00 amISP - IAH
1 stop26h 54mFrontier
mié. 12/178:07 pmIAH - ISP
1 stop14h 18mFrontier
Deal found 12/9$254
This CheapOair deal was found by Cheapflights users on 12/10. 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.
sáb. 12/206:40 pmISP - IAH
1 stop25h 24mFrontier
jue. 1/228:18 pmIAH - ISP
1 stop23h 29mFrontier
Deal found 12/10$275
This CheapOair deal was found by Cheapflights users on 12/10. 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.
vie. 12/191:27 pmISP - IAH
1 stop18h 44mFrontier
jue. 1/228:18 pmIAH - ISP
1 stop23h 29mFrontier
Deal found 12/10$289
This CheapOair deal was found by Cheapflights users on 12/10. 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.
jue. 12/1110:19 amISP - IAH
1 stop9h 10mFrontier
vie. 12/268:59 amIAH - ISP
1 stop9h 41mFrontier
Deal found 12/10$299
This CheapOair deal was found by Cheapflights users on 12/10. 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.
jue. 12/1110:19 amISP - IAH
1 stop9h 10mFrontier
jue. 12/189:34 pmIAH - ISP
1 stop14h 08mFrontier
Deal found 12/10$305
This CheapOair deal was found by Cheapflights users on 12/11. 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.
dom. 12/218:35 pmISP - IAH
1 stop11h 46mFrontier
dom. 1/49:34 pmIAH - ISP
1 stop14h 35mFrontier
Deal found 12/11$308
This CheapOair deal was found by Cheapflights users on 12/10. 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.
lun. 12/292:04 pmISP - IAH
1 stop29h 33mFrontier
mié. 1/78:13 pmIAH - ISP
1 stop22h 32mFrontier
Deal found 12/10$313
This CheapOair deal was found by Cheapflights users on 12/9. 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.
sáb. 12/1310:19 amISP - IAH
1 stop9h 10mFrontier
dom. 12/148:07 pmIAH - ISP
1 stop12h 06mFrontier
Deal found 12/9$319
This CheapOair deal was found by Cheapflights users on 12/10. 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.
vie. 12/191:27 pmISP - IAH
1 stop18h 44mFrontier
vie. 1/2311:08 amIAH - ISP
1 stop6h 30mFrontier
Deal found 12/10$323
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/1310:19 amISP - IAH
1 stop21h 47mFrontier
lun. 12/158:07 pmIAH - ISP
1 stop22h 27mFrontier
Deal found 12/11$326
This CheapOair deal was found by Cheapflights users on 12/10. 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.
vie. 12/128:29 pmISP - IAH
1 stop23h 00mFrontier
lun. 12/158:07 pmIAH - ISP
1 stop22h 27mFrontier
Deal found 12/10$334
This CheapOair deal was found by Cheapflights users on 12/10. 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.
jue. 12/1812:20 pmISP - IAH
1 stop20h 44mFrontier
lun. 12/229:34 pmIAH - ISP
1 stop12h 51mFrontier
Deal found 12/10$338

Find flight deals from Islip to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to George Bush Intcntl (IAH). 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$156
(CheapOair)

One-way from

$65
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$390
Provider with most accurate pricing for Islip Long Island-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Islip Long Island-Houston George Bush Intcntl flights.
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From Islip Long Island to Houston George Bush Intcntl
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One-way flight from Islip Long Island to Houston George Bush Intcntl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to George Bush Intcntl 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 diciembre 12, 2025.
Use the filters below to find and compare flights from Islip to Houston George Bush Intcntl Airport that are best for you.

Fly from

Islip

Fly to

George Bush Intcntl

Route

Depart

Return

Price

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

dom. 2/1

7:53 pm-10:13 am

1 stop15h 20m

Houston George Bush Intcntl

sáb. 2/7

8:18 pm-8:40 am

1 stop11h 22m

$156

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

jue. 1/8

8:40 pm-10:01 am

1 stop14h 21m

Houston George Bush Intcntl

lun. 1/12

8:13 pm-10:46 pm

1 stop25h 33m

$181

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

vie. 3/6

10:43 am-8:08 pm

1 stop10h 25m

Houston George Bush Intcntl

mié. 3/11

9:15 pm-4:13 pm

1 stop17h 58m

$218

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

jue. 1/8

8:40 pm-1:53 pm

1 stop18h 13m

Houston George Bush Intcntl

dom. 1/11

8:13 pm-7:51 pm

1 stop22h 38m

$238

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

sáb. 12/20

6:40 pm-7:04 pm

1 stop25h 24m

Houston George Bush Intcntl

jue. 1/22

8:18 pm-8:47 pm

1 stop23h 29m

$275

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

mar. 1/6

12:55 pm-10:01 am

1 stop22h 06m

Houston George Bush Intcntl

dom. 1/11

8:13 pm-7:51 pm

1 stop22h 38m

$283

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

vie. 12/19

1:27 pm-7:11 am

1 stop18h 44m

Houston George Bush Intcntl

jue. 1/22

8:18 pm-8:47 pm

1 stop23h 29m

$289

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

dom. 12/21

8:35 pm-7:21 am

1 stop11h 46m

Houston George Bush Intcntl

dom. 1/4

9:34 pm-1:09 pm

1 stop14h 35m

$308

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

lun. 12/29

2:04 pm-6:37 pm

1 stop29h 33m

Houston George Bush Intcntl

mié. 1/7

8:13 pm-7:45 pm

1 stop22h 32m

$313

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

vie. 12/19

1:27 pm-7:11 am

1 stop18h 44m

Houston George Bush Intcntl

vie. 1/23

11:08 am-6:38 pm

1 stop6h 30m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 19 results
1
2

Compare providers for flights from Islip to George Bush Intcntl

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 Islip to George Bush Intcntl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 Islip, New York-Houston George Bush Intcntl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Islip, New York-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Houston George Bush Intcntl Airport 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 Islip, New York-Houston George Bush Intcntl Airport 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 Islip to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Islip 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 Islip to Houston George Bush Intcntl Airport

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

Currently, October is the cheapest month in which you can book a flight from Islip, New York to Houston George Bush Intcntl Airport (average of $65). Flying from Islip, New York to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $149). 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 Islip to George Bush Intcntl. 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 from for flights from Islip to Houston George Bush Intcntl?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Houston George Bush Intcntl. 0 airlines have flights from Long Island to Houston George Bush Intcntl on a regular basis. Booking flights from Islip Long Island to Houston George Bush Intcntl should not be difficult; the airport handles an average of 0 outbound flights to Houston George Bush Intcntl per day.

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

    There are many flights that can get you from Islip, New York to Houston George Bush Intcntl Airport in 15h 20m. Fly via Frontier to get the fastest option. The distance between Islip, New York and Houston George Bush Intcntl Airport is about 1451 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to George Bush Intcntl 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 Islip, New York to Houston George Bush Intcntl Airport?

    Currently, October is the cheapest month in which you can book a flight from Islip, New York to Houston George Bush Intcntl Airport (average of $65). Flying from Islip, New York to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $149). 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

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Spring
Katy
The Woodlands
Tomball
Jersey Village
Humble
Conroe
Cypress

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