HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Islip (ISP) to Houston from $100

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 6/18. 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.
ISP — HOU
Jun 14 — Jun 211
From?
To?
Fri 6/14
Fri 6/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Islip to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Houston (HO1). 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 June 9, 2024.

Round-trip from

$238

One-way from

$100
From Islip Long Island to Houston
Search Deals
One-way flight from Islip Long Island to Houston
Search Deals

What is the cheapest day to fly round-trip from Islip, New York to Houston?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Houston. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Islip, New York to Houston?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 57 days in advance, which can save you up to 91% on flights from Islip, New York to Houston compared to booking the week you need them. Waiting 57 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $303. For sooner than that we have options available in the next 3 days from $398.

What is the cheapest month to fly from Islip, New York to Houston?

Flights from Islip, New York to Houston lean towards being more expensive in December. Prices are generally better when you fly from Islip, New York to Houston in February, with the cheapest ticket starting at $99.

What is the cheapest time of day to fly from ISP to IAH?

It’s optimal to fly from Islip, New York to Houston in the morning. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

Cheap Islip to Houston flights in June & July 2024

Find cheap flight options from Islip to Houston specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 9, 2024.
Tue 7/99:43 pmISP - IAH
1 stop24h 08mFrontier
Tue 7/168:20 pmIAH - ISP
1 stop10h 38mFrontier
Deal found 6/9$222
Tue 7/22:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 7/49:19 pmIAH - ISP
1 stop9h 39mFrontier
Deal found 6/9$275
Tue 6/182:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 6/209:19 pmIAH - ISP
1 stop9h 21mFrontier
Deal found 6/9$288
Tue 7/911:24 amISP - IAH
1 stop5h 54mFrontier
Thu 7/118:13 pmIAH - ISP
1 stop10h 45mFrontier
Deal found 6/9$425
Fri 6/281:57 pmISP - IAH
3 stops27h 36mMultiple Airlines
Sun 7/75:15 amIAH - ISP
2 stops26h 58mMultiple Airlines
Deal found 6/9$516
Fri 6/281:57 pmISP - IAH
3 stops27h 36mMultiple Airlines
Sun 7/76:02 pmIAH - ISP
3 stops22h 05mMultiple Airlines
Deal found 6/9$522
Fri 6/281:57 pmISP - IAH
2 stops18h 28mMultiple Airlines
Sun 7/75:15 amIAH - ISP
2 stops26h 58mMultiple Airlines
Deal found 6/9$529
Fri 6/284:46 pmISP - IAH
1 stop25h 24mFrontier
Sun 7/78:59 amIAH - ISP
1 stop10h 00mFrontier
Deal found 6/9$684
Mon 6/175:47 pmISP - IAH
3 stops24h 58mMultiple Airlines
Thu 6/201:24 pmIAH - ISP
2 stops26h 43mMultiple Airlines
Deal found 6/9$779

Islip to Houston 2024 flight deals

Discover exclusive flight deals for travel between Islip and Houston in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
Tue 7/99:43 pmISP - IAH
1 stop24h 08mFrontier
Tue 7/168:20 pmIAH - ISP
1 stop10h 38mFrontier
Deal found 6/9$222
Tue 7/22:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 7/49:19 pmIAH - ISP
1 stop9h 39mFrontier
Deal found 6/9$275
Tue 6/182:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 6/209:19 pmIAH - ISP
1 stop9h 21mFrontier
Deal found 6/9$288
Thu 8/2910:00 amISP - IAH
1 stop8h 52mFrontier
Mon 9/26:13 pmIAH - ISP
1 stop13h 13mFrontier
Deal found 6/8$348
Sun 8/411:07 amISP - IAH
1 stop10h 02mFrontier
Mon 8/196:13 pmIAH - ISP
1 stop13h 13mFrontier
Deal found 6/9$362
Sat 9/1410:00 amISP - IAH
1 stop8h 13mFrontier
Mon 9/166:13 pmIAH - ISP
1 stop13h 13mFrontier
Deal found 6/9$370
Tue 7/911:24 amISP - IAH
1 stop5h 54mFrontier
Thu 7/118:13 pmIAH - ISP
1 stop10h 45mFrontier
Deal found 6/9$425
Fri 6/281:57 pmISP - IAH
3 stops27h 36mMultiple Airlines
Sun 7/75:15 amIAH - ISP
2 stops26h 58mMultiple Airlines
Deal found 6/9$516
Fri 6/281:57 pmISP - IAH
3 stops27h 36mMultiple Airlines
Sun 7/76:02 pmIAH - ISP
3 stops22h 05mMultiple Airlines
Deal found 6/9$522

Islip to Houston flights leaving soon

Find last-minute flight options from Islip to Houston for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
Tue 6/182:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 6/209:19 pmIAH - ISP
1 stop9h 21mFrontier
Deal found 6/9$288
Mon 6/175:47 pmISP - IAH
3 stops24h 58mMultiple Airlines
Thu 6/201:24 pmIAH - ISP
2 stops26h 43mMultiple Airlines
Deal found 6/9$779

One-way flights to Houston from Islip

Search for one-way flight options from Islip to Houston. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
Tue 6/182:45 pmISP - IAH
1 stop7h 37mFrontier
Deal found 6/9$100
Sun 7/711:07 amISP - IAH
1 stop10h 02mFrontier
Deal found 6/9$510

Find flights from Islip to Houston within your budget

Customize your flight search to find flights from Islip to Houston 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 3,020,828 searches. Data last updated June 9, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$222 - $529

Route

Depart

Return

Price

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Tue 7/9

1 stop24h 08m

Houston George Bush Intcntl

Tue 7/16

1 stop10h 38m

$222

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Tue 7/2

1 stop7h 37m

Houston George Bush Intcntl

Thu 7/4

1 stop9h 39m

$275

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Thu 8/29

1 stop8h 52m

Houston George Bush Intcntl

Mon 9/2

1 stop13h 13m

$348

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Sun 8/4

1 stop10h 02m

Houston George Bush Intcntl

Mon 8/19

1 stop13h 13m

$362

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Sat 9/14

1 stop8h 13m

Houston George Bush Intcntl

Mon 9/16

1 stop13h 13m

$370

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Tue 7/9

1 stop5h 54m

Houston George Bush Intcntl

Thu 7/11

1 stop10h 45m

$425

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Fri 6/28

3 stops27h 36m

Houston George Bush Intcntl

Sun 7/7

2 stops26h 58m

$516

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Fri 6/28

3 stops27h 36m

Houston George Bush Intcntl

Sun 7/7

3 stops22h 05m

$522

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Fri 6/28

2 stops18h 28m

Houston George Bush Intcntl

Sun 7/7

2 stops26h 58m

$529

Flights are sorted by cheapest first

Deals found on 6/9

What is the cheapest day to fly from Islip, New York to Houston?

Use this chart to determine the cheapest time to fly round-trip from Islip to Houston. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Islip, New York to Houston flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Islip to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston 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.

Temperature and rainfall in Houston by month

Plan your trip to Houston by taking into account the average temperature and rainfall totals by month.

IAH

Temperature

53.6 - 84.2 °F

If weather is an important factor for your trip to Houston, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated June 9, 2024.
Frontier
6.2
Okay
3,969 reviews

Boarding

6.5

Entertainment

4.9

Crew

7.0

Overall

6.2

Food

5.1

Comfort

5.8

Reviews

1 / 10

I'd thought there would be a complimentary drink atleast.

Frontier
6.2
Okay
3,969 reviews
Frontier
6.2
Okay
3,969 reviews

Boarding

6.5

Entertainment

4.9

Crew

7.0

Overall

6.2

Food

5.1

Comfort

5.8

Reviews

1 / 10

I'd thought there would be a complimentary drink atleast.

Related info for your journey

Find useful and relevant information for your journey from Islip to Houston. 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?

    For a flight from Islip to Houston, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city. Long Island is the only Islip airport and it handles 0 outbound flights to Houston per day. 1 airline has flights to Houston from Islip Long Island on a regular basis.

  • Can I find flights from Islip, New York to Houston for under $300 on Cheapflights?

    Yes, there are multiple flights from Islip, New York to Houston for under $300. The cheapest flight booked recently is on Frontier for just $222, but on average you can expect to pay $447.

  • Are there last-minute flights available from Islip, New York to Houston for under $300?

    There are currently 2+ open flights from Islip, New York to Houston within the next 7 days for less than $300.

  • What is the cheapest airline to fly from Islip, New York to Houston round-trip?

    Frontier, at $222, was found to be the cheapest airline from Islip, New York to Houston..

  • What does ISP to IAH mean?

    Great question - ISP to IAH just means Islip Long Island Airport to Houston George Bush Intcntl Airport. Now you’ll know what these unique codes when you look for flights! Houston Hobby Airport (HOU), College Station Easterwood Field Airport (CLL), Beaumont Jefferson County Airport (BPT) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Islip to Houston that include extra baggage allowance?

    The amount of baggage you can bring on your Islip to Houston flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Islip to Houston with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to Houston flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Islip to Houston that include hotel bookings?

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

  • How can I find direct flights from Islip to Houston?

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

  • Can I find deals for business class flights from Islip to Houston?

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

  • Can I find deals for flights from Islip to Houston that allow pets onboard?

    Many airlines flying from Islip to Houston offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Islip to Houston?

    Yes, you can often find last-minute deals on Islip to Houston flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Islip, New York to Houston flight deals updated?

    The Islip, New York to Houston flight deals you see on this page were last updated on 6/9.

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

    Currently, September is the cheapest month in which you can book a flight from Islip, New York to Houston (average of $243). Flying from Islip, New York to Houston in March is currently the most expensive (average of $341). 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

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 Islip to Houston
See prices for flight routes from nearby airports that may be better suited for you.

LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Hobby flights
John F Kennedy Intl to Hobby flights
John F Kennedy Intl to George Bush Intcntl flights
Newark to Hobby flights
LaGuardia to George Bush Intcntl flights
Newark to Austin flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to Austin flights
LaGuardia to Austin flights
Newark to San Antonio flights
John F Kennedy Intl to San Antonio flights
LaGuardia to San Antonio flights
John F Kennedy Intl to Love Field flights
Newark to Love Field flights
Buffalo to Hobby flights
Buffalo to Dallas/Fort Worth flights
Albany to Dallas/Fort Worth flights
LaGuardia to Love Field flights
Buffalo to George Bush Intcntl flights
Syracuse to Dallas/Fort Worth flights
Rochester to Dallas/Fort Worth flights
Albany to Hobby flights
Syracuse to Hobby flights
Rochester to Hobby flights
White Plains to Dallas/Fort Worth flights
Albany to George Bush Intcntl flights
John F Kennedy Intl to El Paso flights
Newark to El Paso flights
Syracuse to George Bush Intcntl flights
Rochester to George Bush Intcntl flights
Syracuse to San Antonio flights
LaGuardia to El Paso flights
Albany to Austin flights
White Plains to Austin flights
Syracuse to Austin flights
Buffalo to Austin flights
Buffalo to San Antonio flights
Rochester to Austin flights
Islip to Dallas/Fort Worth flights
White Plains to San Antonio flights
Newark to McAllen flights
White Plains to Hobby flights
Rochester to San Antonio flights
Albany to San Antonio flights
White Plains to George Bush Intcntl flights
John F Kennedy Intl to McAllen flights
LaGuardia to Midland flights

Top airline flying from Islip to Houston

Discover the top airline that operate flights from Islip to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$185Average$262FlexibilityNo cancel feeOn-time62%
Fort Lauderdale to Miami flights
Boston to Barcelona flights
USA to Barcelona flights
Nashville to Seattle flights
USA to Switzerland flights
Phoenix to Portland flights
Minneapolis to New York flights
New York John F Kennedy Intl Airport to London flights
Houston to Seattle flights
Los Angeles to Honolulu flights
USA to Amsterdam flights
Islip, New York to Houston Hobby Airport flights

Search flights from Islip to Houston by cabin class

Find flights from Islip to Houston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Weekly flight availability from Islip to Houston

Explore weekly flight availability from Islip to Houston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 9, 2024.
Sunday0daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
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.
View all available airlines