HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$109+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — ISP
Jun 2 — Jun 91
Mon 6/2
Mon 6/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$260
(FlightHub)

One-way from

$109
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$267
Provider with most accurate pricing for Houston George Bush Intcntl-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Islip Long Island flights.
Search Deals
From Houston George Bush Intcntl to Islip Long Island
Search Deals
One-way flight from Houston George Bush Intcntl to Islip Long Island
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 May 28, 2025.

This FlightHub deal was found by Cheapflights users on 5/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/202:04 pmIAH - ISP
1 stop28h 32mFrontier
Mon 6/238:21 pmISP - IAH
1 stop15h 40mFrontier
Deal found 5/27$260
This Mytrip deal was found by Cheapflights users on 5/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:50 amIAH - ISP
2 stops35h 09mMultiple Airlines
Wed 6/42:55 pmISP - IAH
2 stops29h 39mMultiple Airlines
Deal found 5/27$865

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 May 28, 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

Fri 6/20

2:04 pm-7:36 pm

1 stop28h 32m

Islip Long Island

Mon 6/23

8:21 pm-11:01 am

1 stop15h 40m

$260

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Wed 8/20

4:43 pm-11:34 pm

1 stop5h 51m

$109

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Wed 6/4

8:44 pm-6:59 pm

2 stops21h 15m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Islip, New York (average of $108). Flying from Houston George Bush Intcntl Airport to Islip, New York in November is currently the most expensive (average of $213). 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.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated May 28, 2025.
Frontier
6.0
Okay
3,288 reviews

Food

4.8

Boarding

6.2

Entertainment

4.6

Overall

6.0

Crew

6.8

Comfort

5.6

Reviews

1 / 20
2.0
Mediocre

Brandyi,May 2025

BWI - ATL

This was my first time flying with Frontier, and it will be my last. The Frontier staff at gate D4 at BWI didn’t make any announcements during boarding and the flight was already delayed, so passengers didn’t receive any updates. The flight from ATL to LAX, I sat in seat 41C which was near the galley and the rear restrooms. There was a nonstop line for the 4 hour and 37 minute flight, passengers jerked my seat backwards and forward, the flight attendants talked the entire time and complained about being a flight attendant for Frontier. It was more about having social hour for the flight attendants than actually working. They complained loudly anytime the overhead light was activated. The passenger seated next to me cracked and smacked her gum for the duration of the flight (4 hours, 37 minutes) and used her cell phone on the brightest setting even though this was a night flight and the cabin lights were dimmed. I felt the urge to shout several times because everyone, including the Frontier flight attendants, were being extremely rude and unreasonable. Frontier is worse than Southwest and I avoid Southwest at all costs. I also didn’t know that refreshments were not free and the flight attendants were out of several items, so I went from ATL to LAX without any refreshments from Frontier. Going forward, I’ll pay more money for other airlines (e.g., Delta, American, United) for better service and for a better experience. I’d rather fly with passengers who have manners and are not rude. Passengers who focus on low paying flight experiences are absolutely horrendous to fly with.
Frontier
6.0
Okay
3,288 reviews
Frontier
6.0
Okay
3,288 reviews

Food

4.8

Boarding

6.2

Entertainment

4.6

Overall

6.0

Crew

6.8

Comfort

5.6

Reviews

1 / 20
2.0
Mediocre

Brandyi,May 2025

BWI - ATL

This was my first time flying with Frontier, and it will be my last. The Frontier staff at gate D4 at BWI didn’t make any announcements during boarding and the flight was already delayed, so passengers didn’t receive any updates. The flight from ATL to LAX, I sat in seat 41C which was near the galley and the rear restrooms. There was a nonstop line for the 4 hour and 37 minute flight, passengers jerked my seat backwards and forward, the flight attendants talked the entire time and complained about being a flight attendant for Frontier. It was more about having social hour for the flight attendants than actually working. They complained loudly anytime the overhead light was activated. The passenger seated next to me cracked and smacked her gum for the duration of the flight (4 hours, 37 minutes) and used her cell phone on the brightest setting even though this was a night flight and the cabin lights were dimmed. I felt the urge to shout several times because everyone, including the Frontier flight attendants, were being extremely rude and unreasonable. Frontier is worse than Southwest and I avoid Southwest at all costs. I also didn’t know that refreshments were not free and the flight attendants were out of several items, so I went from ATL to LAX without any refreshments from Frontier. Going forward, I’ll pay more money for other airlines (e.g., Delta, American, United) for better service and for a better experience. I’d rather fly with passengers who have manners and are not rude. Passengers who focus on low paying flight experiences are absolutely horrendous to fly with.

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.

  • 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Islip, New York (average of $108). Flying from Houston George Bush Intcntl Airport to Islip, New York in November is currently the most expensive (average of $213). 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
Southampton
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for George Bush Intcntl to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Newark flights
Hobby to LaGuardia flights
Hobby to John F Kennedy Intl flights
George Bush Intcntl to Newark flights
George Bush Intcntl to LaGuardia flights
George Bush Intcntl to John F Kennedy Intl flights
Hobby to Buffalo flights
George Bush Intcntl to Buffalo flights
Hobby to Syracuse flights
George Bush Intcntl to Syracuse flights
Hobby to Rochester flights
Hobby to Albany flights
George Bush Intcntl to Rochester flights
George Bush Intcntl to Albany flights
Hobby to Stewart flights
Hobby to White Plains flights
George Bush Intcntl to White Plains flights
Hobby to Ithaca flights
George Bush Intcntl to Ithaca flights
Hobby to Elmira flights
George Bush Intcntl to Elmira flights
Hobby to Watertown flights
George Bush Intcntl to Watertown flights
Hobby to Niagara Falls flights
Hobby to Islip flights
Hobby to Binghamton flights
George Bush Intcntl to Plattsburgh flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.