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Cheap flights from Islip (ISP) to Houston from $135

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 7/2. 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 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
1 adult, Economy
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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 11, 2024.

Round-trip from

$238

One-way from

$135
From Islip Long Island to Houston
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One-way flight from Islip Long Island to Houston
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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 3,117,830 searches. Prices were last updated on June 11, 2024.
Tue 7/22:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 7/49:19 pmIAH - ISP
1 stop9h 39mFrontier
Deal found 6/10$235
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 6/2011:37 amISP - IAH
1 stop8h 06mFrontier
Sun 9/17:14 amIAH - ISP
1 stop10h 05mFrontier
Deal found 6/10$298
Mon 7/154:52 pmISP - IAH
1 stop27h 38mFrontier
Wed 7/179:41 pmIAH - ISP
1 stop9h 58mFrontier
Deal found 6/10$330
Tue 6/252:45 pmISP - IAH
1 stop7h 37mFrontier
Tue 7/308:20 pmIAH - ISP
1 stop10h 38mFrontier
Deal found 6/10$334
Wed 6/194:46 pmISP - IAH
1 stop28h 33mFrontier
Fri 6/216:24 pmIAH - ISP
1 stop12h 16mFrontier
Deal found 6/10$336
Mon 7/155:47 pmISP - IAH
3 stops22h 04mMultiple Airlines
Wed 7/172:01 pmIAH - ISP
3 stops21h 24mMultiple Airlines
Deal found 6/10$377
Mon 7/155:47 pmISP - IAH
3 stops24h 23mMultiple Airlines
Wed 7/176:17 pmIAH - ISP
2 stops17h 08mMultiple Airlines
Deal found 6/10$396

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 3,117,830 searches. Data last updated June 11, 2024.
Tue 7/22:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 7/49:19 pmIAH - ISP
1 stop9h 39mFrontier
Deal found 6/10$235
Tue 7/22:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 7/49:19 pmIAH - ISP
1 stop9h 39mFrontier
Deal found 6/9$275
Thu 8/2211:34 amISP - IAH
1 stop10h 34mFrontier
Sun 8/257:32 pmIAH - ISP
1 stop11h 54mFrontier
Deal found 6/9$276
Tue 6/182:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 6/209:19 pmIAH - ISP
1 stop9h 21mFrontier
Deal found 6/9$288
Thu 6/2011:37 amISP - IAH
1 stop8h 06mFrontier
Sun 9/17:14 amIAH - ISP
1 stop10h 05mFrontier
Deal found 6/10$298
Mon 7/154:52 pmISP - IAH
1 stop27h 38mFrontier
Wed 7/179:41 pmIAH - ISP
1 stop9h 58mFrontier
Deal found 6/10$330
Tue 6/252:45 pmISP - IAH
1 stop7h 37mFrontier
Tue 7/308:20 pmIAH - ISP
1 stop10h 38mFrontier
Deal found 6/10$334
Wed 6/194:46 pmISP - IAH
1 stop28h 33mFrontier
Fri 6/216:24 pmIAH - ISP
1 stop12h 16mFrontier
Deal found 6/10$336
Fri 9/610:00 amISP - IAH
1 stop8h 13mFrontier
Sun 9/87:32 pmIAH - ISP
1 stop11h 54mFrontier
Deal found 6/10$360

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 3,117,830 searches. Data last updated June 11, 2024.
Tue 6/182:45 pmISP - IAH
1 stop7h 37mFrontier
Thu 6/209:19 pmIAH - ISP
1 stop9h 21mFrontier
Deal found 6/9$288
Thu 6/2011:37 amISP - IAH
1 stop8h 06mFrontier
Sun 9/17:14 amIAH - ISP
1 stop10h 05mFrontier
Deal found 6/10$298
Wed 6/194:46 pmISP - IAH
1 stop28h 33mFrontier
Fri 6/216:24 pmIAH - ISP
1 stop12h 16mFrontier
Deal found 6/10$336

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 3,117,830 searches. Data last updated June 11, 2024.
Tue 7/22:45 pmISP - IAH
1 stop7h 37mFrontier
Deal found 6/10$135
Tue 7/99:43 pmISP - HOU
1 stop17h 00mFrontier
Deal found 6/11$139
Thu 7/1811:37 amISP - IAH
1 stop9h 26mFrontier
Deal found 6/10$149
Thu 7/1810:22 pmISP - HOU
1 stop19h 00mFrontier
Deal found 6/10$180
Thu 7/181:05 pmISP - IAH
2 stops21h 47mMultiple Airlines
Deal found 6/10$188
Wed 7/34:46 pmISP - IAH
1 stop28h 33mFrontier
Deal found 6/10$211
Thu 7/181:05 pmISP - IAH
3 stops26h 14mMultiple Airlines
Deal found 6/10$223
Sun 7/711:07 amISP - IAH
1 stop10h 02mFrontier
Deal found 6/9$510
Sun 7/711:07 amISP - IAH
1 stop10h 02mFrontier
Deal found 6/11$591

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 3,117,830 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$221 - $482

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

$221

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

$235

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 8/22

1 stop10h 34m

Houston George Bush Intcntl

Sun 8/25

1 stop11h 54m

$276

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Tue 6/18

1 stop7h 37m

Houston George Bush Intcntl

Thu 6/20

1 stop9h 21m

$288

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Thu 6/20

1 stop8h 06m

Houston George Bush Intcntl

Sun 9/1

1 stop10h 05m

$298

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Mon 7/15

3 stops22h 04m

Houston George Bush Intcntl

Wed 7/17

3 stops21h 24m

$377

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Mon 7/15

3 stops24h 23m

Houston George Bush Intcntl

Wed 7/17

2 stops17h 08m

$396

Islip Long IslandHouston George Bush Intcntl

ISP - IAH

ISPIAH

Islip Long Island

Mon 7/15

2 stops20h 55m

Houston George Bush Intcntl

Wed 7/17

2 stops17h 08m

$482

Flights are sorted by cheapest first

Deals found on 6/11

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 11, 2024.
Frontier
6.2
Okay
3,962 reviews

Overall

6.2

Crew

7.0

Food

5.1

Boarding

6.5

Comfort

5.8

Entertainment

4.9

Reviews

1 / 10

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

Frontier
6.2
Okay
3,962 reviews
Frontier
6.2
Okay
3,962 reviews

Overall

6.2

Crew

7.0

Food

5.1

Boarding

6.5

Comfort

5.8

Entertainment

4.9

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 $221, but on average you can expect to pay $354.

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

    There are currently 3+ 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 $221, 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 6/10.

  • 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

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

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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 3,117,830 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$185Average$262FlexibilityNo cancel feeOn-time62%
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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 11, 2024.
Sunday0daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights

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