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Cheap flights from Islip, New York to Houston from $308

This is the cheapest round-trip 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 5/14. 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

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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
5:10 pm - 11:30 pm
ISP
-
HOU
7h 20m
1 stop
Southwest Logo
3:00 pm - 11:30 pm
HOU
-
ISP
7h 30m
2 stops
$308Southwest
Thu, May 14 - Mon, May 18
Southwest Logo
12:45 pm - 9:00 pm
ISP
-
HOU
9h 15m
2 stops
Southwest Logo
3:00 pm - 11:30 pm
HOU
-
ISP
7h 30m
2 stops
$313Southwest
Thu, May 14 - Mon, May 18
Southwest Logo
5:10 pm - 11:30 pm
ISP
-
HOU
7h 20m
1 stop
Southwest Logo
5:00 am - 12:05 pm
HOU
-
ISP
6h 05m
1 stop
$334Southwest
Mon, May 18 - Thu, May 21
Southwest Logo
4:30 pm - 11:30 pm
ISP
-
HOU
8h 00m
2 stops
Southwest Logo
5:00 am - 12:05 pm
HOU
-
ISP
6h 05m
1 stop
$339Southwest
Mon, May 18 - Thu, May 21
Southwest Logo
4:30 pm - 12:05 am
ISP
-
HOU
8h 35m
1 stop
Southwest Logo
5:05 am - 11:50 am
HOU
-
ISP
5h 45m
1 stop
$346Southwest
Thu, Apr 23 - Sun, Apr 26
Southwest Logo
4:30 pm - 11:30 pm
ISP
-
HOU
8h 00m
2 stops
Southwest Logo
5:05 am - 11:50 am
HOU
-
ISP
5h 45m
1 stop
$351Southwest
Thu, Apr 23 - Sun, Apr 26
Southwest Logo
6:05 pm - 11:45 pm
ISP
-
HOU
6h 40m
1 stop
Southwest Logo
1:50 pm - 12:15 am
HOU
-
ISP
9h 25m
1 stop
$370Southwest
Fri, Jul 17 - Sun, Jul 19
Southwest Logo
4:30 pm - 12:05 am
ISP
-
HOU
8h 35m
1 stop
Southwest Logo
5:05 am - 11:50 am
HOU
-
ISP
5h 45m
1 stop
$389Southwest
Thu, Apr 23 - Sun, Apr 26
Southwest Logo
4:30 pm - 11:30 pm
ISP
-
HOU
8h 00m
2 stops
Southwest Logo
12:50 pm - 8:25 pm
HOU
-
ISP
6h 35m
2 stops
$393Southwest
Mon, May 18 - Thu, May 21
Southwest Logo
6:05 pm - 11:45 pm
ISP
-
HOU
6h 40m
1 stop
Southwest Logo
2:55 pm - 11:35 pm
HOU
-
ISP
7h 40m
2 stops
$394Southwest
Fri, Jul 17 - Sun, Jul 19

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
May 14
ISP5:10 pmIslip Long Island
7h 20m
1 stop
HOU11:30 pmHouston Hobby
May 18
HOU3:00 pmHouston Hobby
7h 30m
2 stops
ISP11:30 pmIslip Long Island
$308
Southwest
May 14
ISP12:45 pmIslip Long Island
9h 15m
2 stops
HOU9:00 pmHouston Hobby
May 18
HOU3:00 pmHouston Hobby
7h 30m
2 stops
ISP11:30 pmIslip Long Island
$313
Southwest
May 18
ISP5:10 pmIslip Long Island
7h 20m
1 stop
HOU11:30 pmHouston Hobby
May 21
HOU5:00 amHouston Hobby
6h 05m
1 stop
ISP12:05 pmIslip Long Island
$334

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 April 5, 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

Thu 5/14

5:10 pm-11:30 pm

1 stop7h 20m

Houston Hobby

Mon 5/18

3:00 pm-11:30 pm

2 stops7h 30m

$308

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 5/14

12:45 pm-9:00 pm

2 stops9h 15m

Houston Hobby

Mon 5/18

3:00 pm-11:30 pm

2 stops7h 30m

$313
Quickest round-trip

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Mon 5/18

5:10 pm-11:30 pm

1 stop7h 20m

Houston Hobby

Thu 5/21

5:00 am-12:05 pm

1 stop6h 05m

$334

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Mon 5/18

4:30 pm-11:30 pm

2 stops8h 00m

Houston Hobby

Thu 5/21

5:00 am-12:05 pm

1 stop6h 05m

$339

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 4/23

4:30 pm-12:05 am

1 stop8h 35m

Houston Hobby

Sun 4/26

5:05 am-11:50 am

1 stop5h 45m

$346

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 4/23

4:30 pm-11:30 pm

2 stops8h 00m

Houston Hobby

Sun 4/26

5:05 am-11:50 am

1 stop5h 45m

$351

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Fri 7/17

6:05 pm-11:45 pm

1 stop6h 40m

Houston Hobby

Sun 7/19

1:50 pm-12:15 am

1 stop9h 25m

$370

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 4/23

4:30 pm-12:05 am

1 stop8h 35m

Houston Hobby

Sun 4/26

5:05 am-11:50 am

1 stop5h 45m

$389

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Mon 5/18

4:30 pm-11:30 pm

2 stops8h 00m

Houston Hobby

Thu 5/21

12:50 pm-8:25 pm

2 stops6h 35m

$393

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Fri 7/17

6:05 pm-11:45 pm

1 stop6h 40m

Houston Hobby

Sun 7/19

2:55 pm-11:35 pm

2 stops7h 40m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 Friday is the least expensive day to fly to Houston Hobby Airport. Tickets to fly out on this day can be as low as $330. 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 $457.

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 in the morning. momondo users have found flights departing from Islip, New York to Houston Hobby Airport in the morning for as low as $372. 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 $406. 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 40m

Direct flights

None
The fastest flight from Islip, New York to Houston Hobby Airport takes 6h 40m
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 40m.

  • 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
4,340 reviews
Search Southwest flights

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Galveston
Sugar Land
Pasadena
Kemah
Baytown
Texas City
Webster
Rosenberg
Pearland
Freeport
League City
Lake Jackson
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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