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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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — IAH
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$130
(CheapOair)

One-way from

$65
(Frontier)

Popular in

December

Cheapest in

January

Average price

$281
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
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 28, 2025.

This CheapOair deal was found by Cheapflights users on 10/28. 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.
Tue 11/116:27 pmISP - IAH
1 stop16h 06mFrontier
Thu 11/137:42 pmIAH - ISP
1 stop13h 55mFrontier
Deal found 10/28$130
This Booking.com deal was found by Cheapflights users on 10/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1511:40 amISP - IAH
1 stop27h 56mFrontier
Tue 11/1810:28 amIAH - ISP
1 stop23h 09mFrontier
Deal found 10/26$141
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Wed 11/124:58 pmISP - IAH
1 stop17h 35mFrontier
Sun 11/1611:33 amIAH - ISP
1 stop20h 36mFrontier
Deal found 10/27$162
This CheapOair deal was found by Cheapflights users on 10/26. 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 11/46:27 pmISP - IAH
1 stop16h 06mFrontier
Tue 11/1110:28 amIAH - ISP
1 stop23h 09mFrontier
Deal found 10/26$182
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:58 pmISP - IAH
1 stop8h 01mMultiple Airlines
Sun 11/1611:10 pmIAH - ISP
2 stops41h 32mMultiple Airlines
Deal found 10/28$186
This CheapOair deal was found by Cheapflights users on 10/26. 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 11/144:58 pmISP - IAH
1 stop25h 44mFrontier
Sun 11/1611:33 amIAH - ISP
1 stop20h 36mFrontier
Deal found 10/26$194
This CheapOair deal was found by Cheapflights users on 10/26. 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.
Wed 11/124:58 pmISP - IAH
1 stop17h 35mFrontier
Thu 12/189:34 pmIAH - ISP
1 stop14h 08mFrontier
Deal found 10/26$200
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sat 11/154:58 pmISP - IAH
2 stops41h 13mMultiple Airlines
Tue 11/188:39 amIAH - ISP
1 stop8h 03mMultiple Airlines
Deal found 10/26$201
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Mon 11/249:02 amISP - IAH
1 stop8h 48mFrontier
Tue 12/98:07 pmIAH - ISP
1 stop25h 37mFrontier
Deal found 10/28$206
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 12/218:35 pmISP - IAH
1 stop11h 46mFrontier
Fri 12/269:34 pmIAH - ISP
1 stop19h 21mFrontier
Deal found 10/27$223
This CheapOair deal was found by Cheapflights users on 10/26. 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 11/2010:02 amISP - IAH
1 stop24h 37mFrontier
Tue 12/28:17 pmIAH - ISP
1 stop25h 27mFrontier
Deal found 10/26$226
This CheapOair deal was found by Cheapflights users on 10/26. 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 10/306:37 pmISP - IAH
1 stop15h 56mFrontier
Sun 11/211:33 amIAH - ISP
1 stop20h 36mFrontier
Deal found 10/26$238

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 October 28, 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

Sat 11/15

11:40 am-2:36 pm

1 stop27h 56m

Houston George Bush Intcntl

Tue 11/18

10:28 am-10:37 am

1 stop23h 09m

$141

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Thu 12/4

10:19 am-6:29 pm

1 stop9h 10m

Houston George Bush Intcntl

Sun 12/7

8:07 pm-9:13 am

1 stop12h 06m

$162

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Thu 11/13

6:37 pm-9:33 am

1 stop15h 56m

Houston George Bush Intcntl

Sun 11/16

11:33 am-9:09 am

1 stop20h 36m

$162

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Wed 11/12

4:58 pm-9:33 am

1 stop17h 35m

Houston George Bush Intcntl

Sun 11/16

11:33 am-9:09 am

1 stop20h 36m

$162

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Fri 11/7

4:58 pm-9:33 am

1 stop17h 35m

Houston George Bush Intcntl

Thu 11/13

7:42 pm-10:37 am

1 stop13h 55m

$162

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Fri 12/5

8:29 pm-6:29 pm

1 stop23h 00m

Houston George Bush Intcntl

Mon 12/8

8:07 pm-7:34 pm

1 stop22h 27m

$182

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Wed 11/19

4:58 pm-9:39 am

1 stop17h 41m

Houston George Bush Intcntl

Fri 12/5

8:07 pm-9:13 am

1 stop12h 06m

$182

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Wed 11/12

4:58 pm-9:33 am

1 stop17h 35m

Houston George Bush Intcntl

Fri 11/14

12:49 pm-10:37 am

1 stop20h 48m

$182

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Sat 11/8

11:40 am-2:36 pm

1 stop27h 56m

Houston George Bush Intcntl

Tue 11/11

10:28 am-10:37 am

1 stop23h 09m

$182

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Mon 11/17

9:54 am-3:36 pm

1 stop6h 42m

$65

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 16 results
1
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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 October.
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, March is the cheapest month in which you can book a flight from Islip, New York to Houston George Bush Intcntl Airport (average of $82). Flying from Islip, New York to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $122). 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 27h 56m. 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, March is the cheapest month in which you can book a flight from Islip, New York to Houston George Bush Intcntl Airport (average of $82). Flying from Islip, New York to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $122). 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
Katy
The Woodlands
Jersey Village
Spring
Humble
Conroe
Tomball
Cypress

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