What airlines fly to Texas?

United Airlines, Spirit Airlines and American Airlines are the top three most popular airlines that fly to Texas from Islip according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Texas. Keep in mind that there are 7 different airlines that fly to Texas on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to Texas?

Frontier and Southwest are the most popular carriers operating from Islip Long Island to Texas

When did momondo last update prices for flights from Islip Long Island Airport to Texas?

Prices for flights from Islip Long Island Airport to Texas were last updated today.

How many operators does momondo search for flights from Islip Long Island Airport to Texas?

As of September 2025, there is 1 operator available to choose from for flights from Islip Long Island Airport to Texas.

How old do you have to be to fly from Islip Long Island Airport to Texas?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Texas.

What documentation or ID do you need to fly to Texas?

The travel and health documents required for your trip to Texas can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Texas. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$84 Cheap Flights from Islip to Texas in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Islip to Texas

Round-trip

One-way

Last minute

Cheap round-trip flights

11:35 am - 10:04 amISP-DFW

23h 29m1 stop

8:18 pm - 8:42 pmDFW-ISP

23h 24m1 stop

$153Frontier

Find Deal

Wed, Oct 1 - Mon, Oct 6

5:05 pm - 7:13 pmISP-DFW

27h 08m1 stop

8:00 am - 1:47 pmDFW-ISP

28h 47m1 stop

$155Frontier

Find Deal

Fri, Oct 3 - Sun, Oct 5

9:27 pm - 7:57 amISP-DFW

11h 30m1 stop

9:10 pm - 10:37 amDFW-ISP

12h 27m1 stop

$163Frontier

Find Deal

Sun, Nov 2 - Thu, Nov 13

9:54 am - 7:41 pmISP-DFW

10h 47m1 stop

8:41 pm - 10:55 amDFW-ISP

13h 14m1 stop

$168Frontier

Find Deal

Fri, Oct 31 - Fri, Nov 7

11:40 am - 5:25 pmISP-AUS

6h 45m1 stop

11:14 am - 8:42 pmAUS-ISP

8h 28m1 stop

$183Frontier

Find Deal

Thu, Oct 2 - Thu, Oct 9

4:58 pm - 12:25 amISP-IAH

8h 27m1 stop

8:36 pm - 11:00 amIAH-ISP

13h 24m2 stops

$236Multiple Airlines

Find Deal

Wed, Nov 19 - Wed, Dec 3

12:55 pm - 7:45 pmISP-HOU

7h 50m2 stops

4:20 pm - 11:50 pmHOU-ISP

6h 30m1 stop

$254Southwest

Find Deal

Wed, Nov 5 - Thu, Nov 6

5:35 pm - 11:45 pmISP-HOU

7h 10m1 stop

3:55 pm - 11:45 pmHOU-ISP

6h 50m2 stops

$276Southwest

Find Deal

Thu, Oct 23 - Fri, Oct 24

12:55 pm - 6:15 pmISP-HOU

6h 20m1 stop

4:20 pm - 11:50 pmHOU-ISP

6h 30m1 stop

$291Southwest

Find Deal

Wed, Nov 5 - Thu, Nov 6

12:55 pm - 7:45 pmISP-HOU

7h 50m2 stops

2:10 pm - 11:50 pmHOU-ISP

8h 40m2 stops

$301Southwest

Find Deal

Wed, Nov 5 - Thu, Nov 6

Frontier flights from Islip to Texas

Our best Frontier deals on Islip to Texas flight tickets

Frontier

Oct 1

ISP11:35 amIslip Long Island

23h 29m

1 stop

DFW10:04 amDallas/Fort Worth

Oct 6

DFW8:18 pmDallas/Fort Worth

23h 24m

1 stop

ISP8:42 pmIslip Long Island

$153

Find similar

Frontier

Oct 3

ISP5:05 pmIslip Long Island

27h 08m

1 stop

DFW7:13 pmDallas/Fort Worth

Oct 5

DFW8:00 amDallas/Fort Worth

28h 47m

1 stop

ISP1:47 pmIslip Long Island

$155

Find similar

Frontier

Nov 2

ISP9:27 pmIslip Long Island

11h 30m

1 stop

DFW7:57 amDallas/Fort Worth

Nov 13

DFW9:10 pmDallas/Fort Worth

12h 27m

1 stop

ISP10:37 amIslip Long Island

$163

Find similar

Southwest flights from Islip to Texas

Our best Southwest deals on Islip to Texas flight tickets

Southwest

Nov 5

ISP12:55 pmIslip Long Island

7h 50m

2 stops

HOU7:45 pmHouston Hobby

Nov 6

HOU4:20 pmHouston Hobby

6h 30m

1 stop

ISP11:50 pmIslip Long Island

$254

Find similar

Southwest

Oct 23

ISP5:35 pmIslip Long Island

7h 10m

1 stop

HOU11:45 pmHouston Hobby

Oct 24

HOU3:55 pmHouston Hobby

6h 50m

2 stops

ISP11:45 pmIslip Long Island

$276

Find similar

Southwest

Nov 5

ISP12:55 pmIslip Long Island

6h 20m

1 stop

HOU6:15 pmHouston Hobby

Nov 6

HOU4:20 pmHouston Hobby

6h 30m

1 stop

ISP11:50 pmIslip Long Island

$291

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Wed 10/1

11:35 am-10:04 am

1 stop23h 29m

Dallas/Fort Worth

Mon 10/6

8:18 pm-8:42 pm

1 stop23h 24m

$153

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Fri 10/3

5:05 pm-7:13 pm

1 stop27h 08m

Dallas/Fort Worth

Sun 10/5

8:00 am-1:47 pm

1 stop28h 47m

$155

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sun 11/2

9:27 pm-7:57 am

1 stop11h 30m

Dallas/Fort Worth

Thu 11/13

9:10 pm-10:37 am

1 stop12h 27m

$163

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Fri 10/31

9:54 am-7:41 pm

1 stop10h 47m

Dallas/Fort Worth

Fri 11/7

8:41 pm-10:55 am

1 stop13h 14m

$168

IslipAustin

ISP - AUS

ISPAUS

Islip Long Island

Thu 10/2

11:40 am-5:25 pm

1 stop6h 45m

Austin Bergstrom

Thu 10/9

11:14 am-8:42 pm

1 stop8h 28m

$183

IslipHouston

ISP - IAH

ISPIAH

Islip Long Island

Wed 11/19

4:58 pm-12:25 am

1 stop8h 27m

Houston George Bush Intcntl

Wed 12/3

8:36 pm-11:00 am

2 stops13h 24m

$236

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Wed 11/5

12:55 pm-7:45 pm

2 stops7h 50m

Houston Hobby

Thu 11/6

4:20 pm-11:50 pm

1 stop6h 30m

$254

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Thu 10/23

5:35 pm-11:45 pm

1 stop7h 10m

Houston Hobby

Fri 10/24

3:55 pm-11:45 pm

2 stops6h 50m

$276

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Wed 11/5

12:55 pm-6:15 pm

1 stop6h 20m

Houston Hobby

Thu 11/6

4:20 pm-11:50 pm

1 stop6h 30m

$291

IslipHouston

ISP - HOU

ISPHOU

Islip Long Island

Wed 11/5

12:55 pm-7:45 pm

2 stops7h 50m

Houston Hobby

Thu 11/6

2:10 pm-11:50 pm

2 stops8h 40m

$301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip to Texas

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

Prices

Airlines

What is the cheapest month to fly to Texas?

The cheapest month to fly to Texas from Islip is in February. Flight prices, which tend to average around $199, are often lower during this time because this is during the off-season. If you don’t want to visit Texas in February, then you should wait until October to fly from Islip, when ticket prices are also cheap, with an average price of $255.

What is the cheapest day to depart on your flight to Texas?

According to our data, Friday is the cheapest day to fly to Texas from Islip. The lowest ticket price found for a Friday departure recently was $52. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Texas on Wednesday is $406.

What is the cheapest time of day to depart on your flight to Texas?

The cheapest time of day to fly to Texas is in the evening when flights can be purchased for as low as $189. Flights to Texas are more costly in the morning, with an average ticket price of $370. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Islip to Texas flights?

You could potentially save up to 53% on your flight if you consider stops on a Islip to Texas flight.

Cheap Islip to Texas flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Texas

Direct flights	None

There are no direct flights from Islip to Texas. There are no popular flight routes from Islip to Texas.

Search flight deals

When did momondo last update prices for flights from Islip Long Island Airport to Texas?
Prices for flights from Islip Long Island Airport to Texas were last updated today.
How many operators does momondo search for flights from Islip Long Island Airport to Texas?
As of September 2025, there is 1 operator available to choose from for flights from Islip Long Island Airport to Texas.
How old do you have to be to fly from Islip Long Island Airport to Texas?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Texas.
What documentation or ID do you need to fly to Texas?
The travel and health documents required for your trip to Texas can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Texas. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Islip to Texas

Compare and see reviews for airlines that fly from Islip to Texas with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $268	Free Cancellation	Rating 8.0 4,242 reviews		Search Southwest flights

Why use momondo?

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

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

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

Flights from Islip to Texas with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Islip to Texas flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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