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Cheap flights from Islip, New York to Houston from $144

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Houston departing on 8/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Islip, New York to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:05 am - 1:15 pm
ISP
-
HOU
8h 10m
1 stop
Southwest Logo
1:35 pm - 8:45 pm
HOU
-
ISP
6h 10m
1 stop
$267Southwest
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
3:20 pm - 7:55 pm
ISP
-
HOU
5h 35m
1 stop
Southwest Logo
10:40 am - 8:45 pm
HOU
-
ISP
9h 05m
2 stops
$272Southwest
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
6:05 am - 1:00 pm
ISP
-
HOU
7h 55m
2 stops
Southwest Logo
10:40 am - 8:45 pm
HOU
-
ISP
9h 05m
2 stops
$278Southwest
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
12:35 pm - 5:45 pm
ISP
-
HOU
6h 10m
1 stop
Southwest Logo
3:55 pm - 10:05 pm
HOU
-
ISP
5h 10m
1 stop
$309Southwest
Thu, Aug 20 - Fri, Aug 21
Southwest Logo
12:35 pm - 7:35 pm
ISP
-
HOU
8h 00m
2 stops
Southwest Logo
3:55 pm - 10:05 pm
HOU
-
ISP
5h 10m
1 stop
$314Southwest
Thu, Aug 20 - Fri, Aug 21
Southwest Logo
5:00 pm - 10:20 pm
ISP
-
HOU
6h 20m
1 stop
Southwest Logo
5:00 am - 12:05 pm
HOU
-
ISP
6h 05m
1 stop
$333Southwest
Thu, Sep 3 - Sat, Sep 5
Southwest Logo
1:15 pm - 10:20 pm
ISP
-
HOU
10h 05m
2 stops
Southwest Logo
1:20 pm - 10:05 pm
HOU
-
ISP
7h 45m
2 stops
$368Southwest
Thu, Aug 20 - Fri, Aug 21
Southwest Logo
5:30 am - 11:55 am
ISP
-
HOU
7h 25m
1 stop
Southwest Logo
7:25 am - 2:30 pm
HOU
-
ISP
6h 05m
1 stop
$399Southwest
Sat, Aug 22 - Sat, Aug 29
Southwest Logo
5:30 am - 1:55 pm
ISP
-
HOU
9h 25m
2 stops
Southwest Logo
5:00 am - 12:05 pm
HOU
-
ISP
6h 05m
1 stop
$404Southwest
Sat, Aug 22 - Sat, Aug 29
Southwest Logo
5:30 am - 1:55 pm
ISP
-
HOU
9h 25m
2 stops
Southwest Logo
6:40 am - 2:30 pm
HOU
-
ISP
6h 50m
2 stops
$457Southwest
Sat, Aug 22 - Sat, Aug 29

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Southwest flights from Islip, New York to Houston Hobby Airport

Our best Southwest deals on Islip, New York to Houston Hobby Airport flight tickets
Southwest
Sep 2
ISP6:05 amIslip Long Island
8h 10m
1 stop
HOU1:15 pmHouston Hobby
Sep 5
HOU1:35 pmHouston Hobby
6h 10m
1 stop
ISP8:45 pmIslip Long Island
$267
Southwest
Sep 2
ISP3:20 pmIslip Long Island
5h 35m
1 stop
HOU7:55 pmHouston Hobby
Sep 5
HOU10:40 amHouston Hobby
9h 05m
2 stops
ISP8:45 pmIslip Long Island
$272
Southwest
Sep 2
ISP6:05 amIslip Long Island
7h 55m
2 stops
HOU1:00 pmHouston Hobby
Sep 5
HOU10:40 amHouston Hobby
9h 05m
2 stops
ISP8:45 pmIslip Long Island
$278

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York to Houston Hobby Airport 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, momondo users made 832,500 searches. Data last updated July 24, 2026.
Use the filters below to find and compare flights from Islip, New York to Houston Hobby Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Wed 9/2

6:05 am-1:15 pm

1 stop8h 10m

Houston Hobby

Sat 9/5

1:35 pm-8:45 pm

1 stop6h 10m

$267

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Wed 9/2

3:20 pm-7:55 pm

1 stop5h 35m

Houston Hobby

Sat 9/5

10:40 am-8:45 pm

2 stops9h 05m

$272

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Wed 9/2

6:05 am-1:00 pm

2 stops7h 55m

Houston Hobby

Sat 9/5

10:40 am-8:45 pm

2 stops9h 05m

$278
Quickest round-trip

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 8/20

12:35 pm-5:45 pm

1 stop6h 10m

Houston Hobby

Fri 8/21

3:55 pm-10:05 pm

1 stop5h 10m

$309

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 8/20

12:35 pm-7:35 pm

2 stops8h 00m

Houston Hobby

Fri 8/21

3:55 pm-10:05 pm

1 stop5h 10m

$314

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 9/3

5:00 pm-10:20 pm

1 stop6h 20m

Houston Hobby

Sat 9/5

5:00 am-12:05 pm

1 stop6h 05m

$333

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 8/20

1:15 pm-10:20 pm

2 stops10h 05m

Houston Hobby

Fri 8/21

1:20 pm-10:05 pm

2 stops7h 45m

$368

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Sat 8/22

5:30 am-11:55 am

1 stop7h 25m

Houston Hobby

Sat 8/29

7:25 am-2:30 pm

1 stop6h 05m

$399

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Sat 8/22

5:30 am-1:55 pm

2 stops9h 25m

Houston Hobby

Sat 8/29

5:00 am-12:05 pm

1 stop6h 05m

$404

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Sat 8/22

5:30 am-1:55 pm

2 stops9h 25m

Houston Hobby

Sat 8/29

6:40 am-2:30 pm

2 stops6h 50m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
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See travel insights to Houston from

How to get the cheapest flight ticket from Islip, New York to Houston Hobby Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Houston Hobby Airport?

Our data shows that Wednesday is the least expensive day to fly to Houston Hobby Airport. Tickets to fly out on this day can be as low as $341. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston Hobby Airport on Sunday is $447.

What is the cheapest time of day to depart on your flight to Houston Hobby Airport?

According to our data, the cheapest time of day to fly to Houston Hobby Airport is at noon. momondo users have found flights departing from Islip, New York to Houston Hobby Airport at noon for as low as $427. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $478. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Islip, New York to Houston Hobby Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Houston Hobby Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Houston Hobby Airport (ISP to HOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Houston Hobby Airport

Fastest flight time

6h 10m

Direct flights

None
The fastest flight from Islip, New York to Houston Hobby Airport takes 6h 10m
There are no direct flights from Islip, New York to Houston Hobby Airport. There are no popular flight routes from Islip, New York to Houston Hobby Airport.
Search flight deals

Frequently asked questions about flying from Islip, New York to Houston Hobby Airport

  • How far is Islip Long Island to Houston Hobby by plane?

    The distance between Islip Long Island and Houston Hobby is about 1455.1 mi. A reasonable flight in good conditions will take 6h 10m.

  • When did momondo last update prices for flights from Islip Long Island Airport to Houston Hobby Airport?

    Prices for flights from Islip Long Island Airport to Houston Hobby Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Islip Long Island Airport to Houston Hobby Airport?

  • How old do you have to be to fly from Islip Long Island Airport to Houston Hobby Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Houston Hobby Airport.

  • What documentation or ID do you need to fly to Houston Hobby Airport?

    The necessary travel and health documents for your Houston Hobby Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Islip, New York to Houston Hobby Airport?

Best airlines flying from Islip, New York to Houston Hobby Airport

Compare and see reviews for airlines that fly from Islip, New York to Houston Hobby Airport with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $266Free CancellationRating
8.0
4,234 reviews
Search Southwest flights

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Galveston
Pasadena
Sugar Land
Texas City
Baytown
Rosenberg
Webster
Kemah
Pearland
League City
Lake Jackson
Freeport
Stafford
Seabrook
Missouri City
West University Place
La Marque
Nassau Bay

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Houston?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Islip to Houston. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Islip to Houston with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Houston from Islip with this policy.

How can momondo help me find flights from Islip to Houston?

momondo provides multiple filters to help you find the best flight to Houston from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Islip to Houston right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Islip to Houston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Houston and let you know when they change.

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