ISP - IAH

$211 Find Cheap Flights from Islip to Houston George Bush Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$211
Typical prices: $316-$660
Frontier
Sat 10/6Fri 10/19
ISP - IAH • 1 stop
Cheapest one-way
$218
Typical prices: $231-$344
Frontier
Mon 10/22
ISP - IAH • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Islip and Houston George Bush Intcntl Airport. You'll need to take a connecting flight to reach the destination.
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Insights
Top layover airports
Tampa (TPA)
Cheapest • Avg $316 (round-trip)
Orlando (MCO)
Shortest trip • 12h 15m (one-way)
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Insights
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We hope you love your trip to Houston George Bush Intcntl Airport!
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Flight Deals

Cheap Flights from Islip to George Bush Intcntl (ISP-IAH)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to George Bush Intcntl

Tue, Oct 6 - Mon, Oct 19
Multiple Airlines Logo
5:43 pm - 3:13 pmISP  Islip Long Island-IAH Houston George Bush Intcntl
22h 30m1 stop Orlando
Multiple Airlines Logo
8:35 pm - 12:58 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
15h 23m2 stops Orlando Wilmington New Hanover County
$211Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
Frontier Logo
6:55 pm - 5:40 pmISP  Islip Long Island-IAH Houston George Bush Intcntl
23h 45m1 stop Orlando
Frontier Logo
8:35 pm - 5:31 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
19h 56m1 stop Orlando
$254Frontier
Fri, Oct 23 - Fri, Oct 30
Frontier Logo
6:55 pm - 5:40 pmISP  Islip Long Island-IAH Houston George Bush Intcntl
23h 45m1 stop Orlando
Frontier Logo
9:14 pm - 5:31 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
19h 17m2 stops Atlanta Hartsfield-Jackson Orlando
$279Frontier
Fri, Nov 20 - Mon, Nov 23
Frontier Logo
4:40 pm - 12:25 amISP  Islip Long Island-IAH Houston George Bush Intcntl
8h 45m1 stop Orlando
Frontier Logo
5:01 am - 3:45 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
9h 44m1 stop Orlando
$286Frontier
Fri, Nov 13 - Mon, Nov 16
Multiple Airlines Logo
6:54 pm - 9:21 amISP  Islip Long Island-IAH Houston George Bush Intcntl
15h 27m1 stop Orlando
Multiple Airlines Logo
8:35 pm - 12:58 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
15h 23m2 stops Orlando Wilmington New Hanover County
$299Multiple Airlines
Fri, Nov 20 - Mon, Nov 23
Frontier Logo
4:40 pm - 12:25 amISP  Islip Long Island-IAH Houston George Bush Intcntl
8h 45m1 stop Orlando
Frontier Logo
5:01 am - 3:45 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
9h 44m1 stop Orlando
$305Frontier
Tue, Oct 6 - Mon, Oct 19
Multiple Airlines Logo
5:43 pm - 3:13 pmISP  Islip Long Island-IAH Houston George Bush Intcntl
22h 30m1 stop Orlando
Multiple Airlines Logo
10:12 am - 11:20 amIAH  Houston George Bush Intcntl-ISP Islip Long Island
24h 08m1 stop Raleigh-Durham
$319Multiple Airlines
Fri, Nov 20 - Fri, Nov 27
Frontier Logo
4:40 pm - 12:25 amISP  Islip Long Island-IAH Houston George Bush Intcntl
8h 45m1 stop Orlando
Frontier Logo
5:01 am - 3:45 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
9h 44m1 stop Orlando
$329Frontier
Fri, Nov 13 - Mon, Nov 16
Multiple Airlines Logo
6:54 pm - 9:21 amISP  Islip Long Island-IAH Houston George Bush Intcntl
15h 27m1 stop Orlando
Multiple Airlines Logo
10:12 am - 11:20 amIAH  Houston George Bush Intcntl-ISP Islip Long Island
24h 08m1 stop Raleigh-Durham
$354Multiple Airlines
Fri, Nov 20 - Fri, Nov 27
Frontier Logo
4:40 pm - 12:25 amISP  Islip Long Island-IAH Houston George Bush Intcntl
8h 45m1 stop Orlando
Frontier Logo
5:01 am - 3:45 pmIAH  Houston George Bush Intcntl-ISP Islip Long Island
9h 44m1 stop Orlando
$385Frontier
Booking Insights

Price, demand and travel trends for Islip to Houston George Bush Intcntl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Islip to Houston George Bush Intcntl Airport with more confidence.

What is the cheapest airline to fly from Islip to Houston George Bush Intcntl Airport?

Frontier ($254) offered the cheapest round-trip ticket from Islip to Houston George Bush Intcntl Airport in the last 5 days.

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Key details for Islip to Houston George Bush Intcntl Airport flights

Cheapest flight

$218
Flight from Islip to Houston George Bush Intcntl Airport

When to book flights from Islip to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Islip to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Islip to Houston George Bush Intcntl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Islip to Houston George Bush Intcntl Airport?

    Flights from Islip to Houston George Bush Intcntl Airport usually depart from Islip Long Island (ISP) and arrive at Houston George Bush Intcntl (IAH).

  • What cabin classes can I book on flights from Islip to Houston George Bush Intcntl Airport?

    Only Economy Class is available on flights from Islip to Houston George Bush Intcntl Airport.

  • Which airports do connecting flights from Islip to Houston George Bush Intcntl Airport pass through?

    Connecting flights from Islip to Houston George Bush Intcntl Airport most commonly pass through:

    • Orlando (MCO) - 80% of one-stop connections
    • Tampa (TPA) - 20% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from Islip to Houston George Bush Intcntl Airport?

    Yes. Being flexible with your travel dates can save you up to 71% on the Islip to Houston George Bush Intcntl Airport route. Tuesday is the cheapest departure day at $211 round-trip on average, while Friday is the most expensive at $718, a difference of $507. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Houston George Bush Intcntl Airport?

    Some of the most popular sights in Houston George Bush Intcntl Airport are Downtown Houston, George R. Brown Convention Center and Galleria Mall. These are among the most viewed places in Houston George Bush Intcntl Airport on KAYAK.

  • How long is a flight from Islip to Houston George Bush Intcntl Airport?

    A nonstop flight from Islip to Houston George Bush Intcntl Airport takes 0h 00m, covering 1,451 miles.

  • Do I need a passport to fly from Islip to Houston George Bush Intcntl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How are flight prices from Islip to Houston George Bush Intcntl Airport looking right now?

    One-way fares from Islip to Houston George Bush Intcntl Airport are currently higher than usual. Average one-way flight prices are about $291, which is 18% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Islip to Houston George Bush Intcntl Airport?

    Flying via Tampa (TPA) gives the shortest average 1-stop total travel time at 10h 08m, compared with 12h 15m via Orlando (MCO).

  • What is the time difference between Islip and Houston George Bush Intcntl Airport?

    Houston George Bush Intcntl Airport is 1 hour behind Islip (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Houston George Bush Intcntl Airport (IAH)?

    Houston George Bush Intcntl Airport (IAH) hosts 5 major car rental companies, with daily rates starting from around $3 for economy cars. Top options include:
    • ACO Rent A Car
    • Easirent
    • America Car Rental
    • Hertz
    • Thrifty

Your guide to booking Islip to Houston George Bush Intcntl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Friday. On this route, Tuesday flights average $211 - about $507 less than Friday (71% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Houston George Bush Intcntl Airport.
    - Houston Airport Marriott at George Bush Intercontinental

More options for your flight from Islip to George Bush Intcntl

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