Cheap Flight Tickets from Islip (ISP) to Houston (IAH), Starting at $409

Good to Know: Cheapest and Fastest ISP - IAH Flights

Useful information for finding best airline tickets from Long Island Mac Arthur to George Bush Intercontinental Houston on your next trip.

Cheapest Round Trip Flight

$409

F9 Frontier Airlines • 1 stop • 35h 43m

Nov 22 – Nov 27

The cheapest round trip flight from Islip to Houston (ISP-IAH-ISP) is currently $409

🔍 Search Flights

Cheapest Direct Flight

$502

WN Southwest Airlines • nonstop • 6h 45m

Nov 22

The cheapest nonstop flight from Islip to Houston (ISP-IAH) is currently $502

🔍 Search Flights

Fastest Flight

6h 45m

The fastest nonstop flight from Islip to Houston (ISP-IAH) takes 6h 45m

Top Airlines Flying from Islip to Houston

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from Islip (ISP) to Houston (IAH)

Compare and book low fare round-trip air tickets from Islip to Houston. Ideal for travelers with confirmed return itineraries.

Nov 22 - Nov 27, Economy
F9
Islip → Houston
35h 43m
4:40 PM - 1:23 PM • 1 stop
F9
Islip → Houston
15h 44m
5:01 AM - 3:45 PM • 1 stop
$409
Frontier Airlines
Nov 22 - Nov 27, Economy
B6
Islip → Houston
12h 18m
6:00 AM - 12:38 PM • 1 stop
B6
Islip → Houston
12h 35m
1:30 PM - 10:25 PM • 1 stop
$626
JetBlue Airways
Nov 22 - Nov 27, Economy
F9
Islip → Houston
29h 4m
4:40 PM - 9:24 AM • 1 stop
F9
Islip → Houston
39h 3m
3:02 PM - 3:45 PM • 2 stops
$793
Frontier Airlines
Nov 22 - Nov 27, Economy
F9
Islip → Houston
14h 5m
4:40 PM - 12:25 AM • 1 stop
F9
Islip → Houston
33h 56m
6:09 PM - 3:45 PM • 3 stops
$844
Frontier Airlines
Nov 22 - Nov 27, Economy
F9
Islip → Houston
36h 53m
4:40 PM - 1:53 PM • 2 stops
F9
Islip → Houston
33h 56m
6:09 PM - 3:45 PM • 2 stops
$875
Frontier Airlines
Nov 22 - Nov 27, Economy
F9
Islip → Houston
14h 5m
4:40 PM - 12:25 AM • 1 stop
F9
Islip → Houston
33h 56m
6:09 PM - 3:45 PM • 2 stops
$912
Frontier Airlines

Fly from Islip to Houston with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Islip to Houston? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Islip to Houston Flights

What are the airports in Islip?
ISP
What’s the most popular airline flying from ISP to IAH?
The most popular airline flying from Islip to Houston are
Can I fly from ISP to IAH non-stop?
Yes, you can fly ISP to IAH non-stop on
Which airlines fly nonstop between Islip and Houston?
The non-stop flights between Islip and Houston are .
What’s the earliest departure time from ISP to IAH Airport?
The earliest flight leaves ISP at 6:00 am and lands in IAH - George Bush Intercontinental Houston
What are the airports in Houston?
IAH
Can I make changes to my Islip to Houston flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ISP to IAH?
Read the fare rules of the Islip to Houston air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Islip and Houston?
operate flights between Islip and Houston
How long does a flight from Islip to Houston take?
It takes approximately 4 hour to fly non-stop from ISP to IAH, which is 1453.78 miles by air.
Which airlines provide the cheapest flights from Islip (ISP) to Houston (IAH) ?
In the past couple of days, the cheapest tickets to IAH from ISP were found on B6 : USD 626
Do I need a passport to fly between ISP and IAH?
No
What’s the latest departure time from ISP to IAH ?
The last flight leaves ISP at 5:3500 pm

Islip (ISP) to Houston (IAH): Airport Information

Origin Airport Long Island Mac Arthur , Islip, US
Destination Airport George Bush Intercontinental Houston , Houston, US
Distance 1454 miles

More Flight Options for Islip (ISP) and Houston (IAH)

Why Fareleaders for ISP to IAH Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Islip to Houston flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on ISP to IAH flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Islip to Houston flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Islip (ISP) to Houston (IAH)
Terms and Conditions*