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Flights from Houston to Islip
Cheap flight deals from Houston to Islip
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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IAH 20:5621h 40m1 stopsISP 19:36Houston - Islip | Tue, Jun 17 | Frontier AirlinesISP 14:056h 45m1 stopsIAH 19:50Islip - Houston | Sat, Jun 21 | Frontier AirlinesRp 3,703,889 Rp 8,908,67657% OFF57% OFFRp 8,908,676 Rp 3,703,889
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IAH 20:5621h 40m1 stopsISP 19:36Houston - Islip | Sat, Jun 14 | Frontier AirlinesISP 20:2115h 40m1 stopsIAH 11:01Islip - Houston | Wed, Jun 18 | Frontier AirlinesRp 3,830,595 Rp 8,908,67656% OFF56% OFFRp 8,908,676 Rp 3,830,595
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IAH 20:5621h 40m1 stopsISP 19:36Houston - Islip | Thu, Jun 19 | Frontier AirlinesISP 14:056h 46m1 stopsIAH 19:51Islip - Houston | Mon, Jun 23 | Frontier AirlinesRp 4,746,951 Rp 8,908,67647% OFF47% OFFRp 8,908,676 Rp 4,746,951
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IAH 20:4615h 20m1 stopsISP 13:06Houston - Islip | Fri, Jun 20 | Frontier AirlinesISP 20:2115h 40m1 stopsIAH 11:01Islip - Houston | Tue, Jun 24 | Frontier AirlinesRp 5,206,26042% OFFRp 8,908,676 Rp 5,206,260
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IAH 21:1514h 51m1 stopsISP 13:06Houston - Islip | Thu, Jun 12 | Frontier AirlinesISP 14:056h 46m1 stopsIAH 19:51Islip - Houston | Mon, Jun 16 | Frontier AirlinesRp 5,507,18738% OFFRp 8,908,676 Rp 5,507,187
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IAH 07:2028h 46m1 stopsISP 13:06Houston - Islip | Thu, Jun 12 | United AirlinesISP 14:056h 46m1 stopsIAH 19:51Islip - Houston | Mon, Jun 16 | Frontier AirlinesRp 6,697,31825% OFFRp 8,908,676 Rp 6,697,318
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IAH 19:1516h 51m1 stopsISP 13:06Houston - Islip | Sun, Jun 22 | Spirit AirlinesISP 20:2120h 22m1 stopsIAH 15:43Islip - Houston | Thu, Jun 26 | Frontier AirlinesRp 6,790,08524% OFFRp 8,908,676 Rp 6,790,085
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IAH 21:1514h 51m1 stopsISP 13:06Houston - Islip | Sun, Jun 22 | Frontier AirlinesISP 20:2120h 22m1 stopsIAH 15:43Islip - Houston | Thu, Jun 26 | Frontier AirlinesRp 7,079,69921% OFFRp 8,908,676 Rp 7,079,699
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IAH 20:5621h 40m1 stopsISP 19:36Houston - Islip | Tue, Jun 24 | Frontier AirlinesISP 14:056h 46m1 stopsIAH 19:51Islip - Houston | Fri, Jun 27 | Frontier AirlinesRp 7,231,29319% OFFRp 8,908,676 Rp 7,231,293
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IAH 07:2011h 14m1 stopsISP 19:34Houston - Islip | Wed, Jul 16 | United AirlinesISP 20:2113h 23m1 stopsIAH 08:44Islip - Houston | Mon, Jul 21 | Frontier AirlinesRp 7,394,20117% OFFRp 8,908,676 Rp 7,394,201
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HOU 13:0017h 25m1 stopsISP Invalid DateHouston - Islip | Sat, Jun 14 | Normal AirlineISP 15:006hNonstopHOU 16:00Islip - Houston | Mon, Jun 16 | Normal AirlineFind More FlightsFind More Flights
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IAH 20:4617h 55m1 stopsISP 15:41Houston - Islip | Mon, Jun 30 | Frontier AirlinesRp 1,583,826 Rp 3,137,66450% OFF50% OFFRp 3,137,664 Rp 1,583,826
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IAH 14:0428h 32m1 stopsISP 19:36Houston - Islip | Fri, Jun 13 | Frontier AirlinesRp 1,708,269 Rp 3,137,66446% OFF46% OFFRp 3,137,664 Rp 1,708,269
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IAH 14:5327h 43m1 stopsISP 19:36Houston - Islip | Fri, Jun 13 | Spirit AirlinesRp 1,767,097 Rp 3,137,66444% OFF44% OFFRp 3,137,664 Rp 1,767,097
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IAH 05:0013h 36m1 stopsISP 19:36Houston - Islip | Sat, Jun 21 | Spirit AirlinesRp 2,101,96333% OFFRp 3,137,664 Rp 2,101,963
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IAH 14:5327h 43m1 stopsISP 19:36Houston - Islip | Mon, Jun 16 | Spirit AirlinesRp 2,151,74031% OFFRp 3,137,664 Rp 2,151,740
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IAH 21:3014h 36m1 stopsISP 13:06Houston - Islip | Tue, Jun 17 | Frontier AirlinesRp 2,339,53625% OFFRp 3,137,664 Rp 2,339,536
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IAH 20:5621h 40m1 stopsISP 19:36Houston - Islip | Mon, Jun 16 | Frontier AirlinesRp 2,355,37525% OFFRp 3,137,664 Rp 2,355,375
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IAH 20:5614h 30m1 stopsISP 12:26Houston - Islip | Sat, Jun 21 | Frontier AirlinesRp 2,409,67723% OFFRp 3,137,664 Rp 2,409,677
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IAH 20:4912h 2m1 stopsISP 09:51Houston - Islip | Thu, Jun 12 | Spirit AirlinesRp 2,452,66722% OFFRp 3,137,664 Rp 2,452,667
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IAH 17:4316h 58m1 stopsISP 11:41Houston - Islip | Mon, Jul 7 | Spirit AirlinesRp 2,604,26117% OFFRp 3,137,664 Rp 2,604,261
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HOU 13:0017h 25m1 stopsISP Invalid DateHouston - Islip | Sat, Jun 14 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | Houston to Islip
Cheapest one-way flight price | Rp 1,583,825 |
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Off-season for travel | April |
Peak season for travel | March |
Flight distance | 2,356.52 km |
Average flight time | 5 hours 30 minutes |
Popular airline | Jetblue Airways |
When is the cheapest time to fly from Houston to Islip?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Houston (HOU) to Islip (ISP) the cheapest?
Airlines adjust prices for flights from Houston to Islip based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Houston (HOU) to Islip (ISP) cost?
According to Trip.com's data, the lowest price is around Rp 6,387,340. -
How long does it take to fly from Houston (HOU) to Islip (ISP) and what is the distance?
It takes around 5 hours 30 minutes to fly from Houston (HOU) to Islip (ISP). -
What are the most popular airlines that fly from Houston (HOU) to Islip (ISP)?
Airlines with flights from Houston (HOU) to Islip (ISP): Southwest Airlines.
How to find a cheap flight from Houston to Islip
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Houston to Islip. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest Houston to Islip ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Houston to Islip for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is Rp 1583826 for a one-way ticket on Mon, Jun 30.
Compare cheap Houston to Islip flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Houston to Islip. The most affordable airline currently operating on this route is Frontier Airlines.
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Houston to Islip route to track ticket prices effortlessly—no need to check manually every day.
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Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
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