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Cheap flights from Islip, New York to San Antonio from $149

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Islip, New York to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
3:10 pm - 11:00 pmISP  Islip Long Island-SAT San Antonio
8h 50m1 stop Baltimore/Washington
Southwest Logo
3:40 pm - 10:40 pmSAT  San Antonio-ISP Islip Long Island
6h 00m1 stop Baltimore/Washington
$369Southwest
Thu, Oct 1 - Tue, Oct 6
Southwest Logo
3:20 pm - 11:15 pmISP  Islip Long Island-SAT San Antonio
8h 55m2 stops Baltimore/Washington Chicago Midway
Southwest Logo
3:40 pm - 10:40 pmSAT  San Antonio-ISP Islip Long Island
6h 00m1 stop Baltimore/Washington
$374Southwest
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
3:10 pm - 11:00 pmISP  Islip Long Island-SAT San Antonio
8h 50m1 stop Baltimore/Washington
Southwest Logo
12:55 pm - 10:40 pmSAT  San Antonio-ISP Islip Long Island
8h 45m2 stops Dallas Love Field Baltimore/Washington
$374Southwest
Thu, Oct 1 - Tue, Oct 6
Breeze Airways Logo
12:00 pm - 8:45 amISP  Islip Long Island-SAT San Antonio
21h 45m1 stop Raleigh-Durham
Breeze Airways Logo
9:25 am - 11:12 amSAT  San Antonio-ISP Islip Long Island
24h 47m1 stop Raleigh-Durham
$379Breeze Airways
Wed, Sep 16 - Sun, Sep 20
Southwest Logo
3:20 pm - 11:10 pmISP  Islip Long Island-SAT San Antonio
8h 50m2 stops Baltimore/Washington Nashville Intl
Southwest Logo
6:00 am - 3:45 pmSAT  San Antonio-ISP Islip Long Island
8h 45m2 stops Orlando Baltimore/Washington
$379Southwest
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
3:10 pm - 11:00 pmISP  Islip Long Island-SAT San Antonio
8h 50m1 stop Baltimore/Washington
Southwest Logo
5:50 am - 3:45 pmSAT  San Antonio-ISP Islip Long Island
8h 55m2 stops Dallas Love Field Baltimore/Washington
$385Southwest
Thu, Oct 1 - Wed, Oct 7
Southwest Logo
3:10 pm - 11:00 pmISP  Islip Long Island-SAT San Antonio
8h 50m1 stop Baltimore/Washington
Southwest Logo
3:40 pm - 10:40 pmSAT  San Antonio-ISP Islip Long Island
6h 00m1 stop Baltimore/Washington
$393Southwest
Thu, Oct 1 - Wed, Oct 7
Multiple Airlines Logo
12:00 pm - 9:45 amISP  Islip Long Island-SAT San Antonio
22h 45m1 stop Raleigh-Durham
Multiple Airlines Logo
8:20 pm - 5:56 pmSAT  San Antonio-ISP Islip Long Island
44h 36m2 stops Denver Intl Orlando
$395Multiple Airlines
Sat, Oct 31 - Wed, Nov 4
Multiple Airlines Logo
12:00 pm - 8:45 amISP  Islip Long Island-SAT San Antonio
21h 45m1 stop Raleigh-Durham
Multiple Airlines Logo
3:19 pm - 4:58 pmSAT  San Antonio-ISP Islip Long Island
24h 39m2 stops Las Vegas Harry Reid Intl Orlando
$406Multiple Airlines
Sat, Sep 19 - Wed, Sep 23
Southwest Logo
6:00 am - 3:55 pmISP  Islip Long Island-SAT San Antonio
10h 55m2 stops Baltimore/Washington Orlando
Southwest Logo
11:50 am - 9:40 pmSAT  San Antonio-ISP Islip Long Island
8h 50m2 stops Orlando Baltimore/Washington
$412Southwest
Sat, Oct 31 - Wed, Nov 4

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Breeze Airways flights from Islip, New York to San Antonio

Our best Breeze Airways deals on Islip, New York to San Antonio flight tickets
Breeze Airways
Sep 16
ISP12:00 pmIslip Long Island
21h 45m
1 stop
SAT8:45 amSan Antonio
Sep 20
SAT9:25 amSan Antonio
24h 47m
1 stop
ISP11:12 amIslip Long Island
$379
Breeze Airways
Nov 21
ISP12:00 pmIslip Long Island
21h 45m
1 stop
SAT8:45 amSan Antonio
Dec 3
SAT9:25 amSan Antonio
27h 57m
1 stop
ISP2:22 pmIslip Long Island
$588
Breeze Airways
Oct 14
ISP12:00 pmIslip Long Island
21h 45m
1 stop
SAT8:45 amSan Antonio
Oct 19
SAT12:38 pmSan Antonio
21h 42m
2 stops
ISP11:20 amIslip Long Island
$665

Southwest flights from Islip, New York to San Antonio

Our best Southwest deals on Islip, New York to San Antonio flight tickets
Southwest
Oct 1
ISP3:10 pmIslip Long Island
8h 50m
1 stop
SAT11:00 pmSan Antonio
Oct 6
SAT3:40 pmSan Antonio
6h 00m
1 stop
ISP10:40 pmIslip Long Island
$369
Southwest
Sep 29
ISP3:20 pmIslip Long Island
8h 55m
2 stops
SAT11:15 pmSan Antonio
Oct 6
SAT3:40 pmSan Antonio
6h 00m
1 stop
ISP10:40 pmIslip Long Island
$374
Southwest
Oct 1
ISP3:10 pmIslip Long Island
8h 50m
1 stop
SAT11:00 pmSan Antonio
Oct 7
SAT5:50 amSan Antonio
8h 55m
2 stops
ISP3:45 pmIslip Long Island
$385

momondo Fare Finder

 
Use the filters below to find and compare flights from Islip, New York to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Thu 10/1

3:10 pm-11:00 pm

1 stop8h 50m

San Antonio

Tue 10/6

3:40 pm-10:40 pm

1 stop6h 00m

$369

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Tue 9/29

3:20 pm-11:15 pm

2 stops8h 55m

San Antonio

Tue 10/6

3:40 pm-10:40 pm

1 stop6h 00m

$374

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Thu 10/1

3:10 pm-11:00 pm

1 stop8h 50m

San Antonio

Tue 10/6

12:55 pm-10:40 pm

2 stops8h 45m

$374

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Wed 9/16

12:00 pm-8:45 am

1 stop21h 45m

San Antonio

Sun 9/20

9:25 am-11:12 am

1 stop24h 47m

$379

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Tue 9/29

3:20 pm-11:10 pm

2 stops8h 50m

San Antonio

Tue 10/6

6:00 am-3:45 pm

2 stops8h 45m

$379

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Thu 10/1

3:10 pm-11:00 pm

1 stop8h 50m

San Antonio

Wed 10/7

5:50 am-3:45 pm

2 stops8h 55m

$385

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Thu 10/1

3:10 pm-11:00 pm

1 stop8h 50m

San Antonio

Wed 10/7

3:40 pm-10:40 pm

1 stop6h 00m

$393

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Sat 10/31

12:00 pm-9:45 am

1 stop22h 45m

San Antonio

Wed 11/4

8:20 pm-5:56 pm

2 stops44h 36m

$395

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Sat 9/19

12:00 pm-8:45 am

1 stop21h 45m

San Antonio

Wed 9/23

3:19 pm-4:58 pm

2 stops24h 39m

$406

IslipSan Antonio

ISP Islip Long Island - SAT San Antonio

ISPSAT

Islip Long Island

Sat 10/31

6:00 am-3:55 pm

2 stops10h 55m

San Antonio

Wed 11/4

11:50 am-9:40 pm

2 stops8h 50m

$412

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Islip, New York to San Antonio

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 San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Thursday when prices can be found for as low as $432. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $593.

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

According to our data, the cheapest time of day to fly to San Antonio is at noon. momondo users have found flights departing from Islip, New York to San Antonio at noon for as low as $287. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $483. 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, New York to San Antonio flights?

You could potentially save up to 21% on your flight if you consider stops on a Islip, New York to San Antonio flight.

When to book flights from Islip, New York to San Antonio

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

Cheap Islip, New York to San Antonio (ISP to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to San Antonio

Best Price Found

$149

Fastest flight time

8h 00m

Direct flights

None
The best one-way flight to San Antonio from Islip, New York in the past 72 hours is $149. The best round-trip flight deal from Islip, New York to San Antonio found on momondo in the last 72 hours is $369.
The fastest flight from Islip, New York to San Antonio takes 8h 00m
There are no direct flights from Islip, New York to San Antonio. There are no popular flight routes from Islip, New York to San Antonio.
Search flight deals

Frequently asked questions about flying from Islip, New York to San Antonio

  • How far is Islip Long Island to San Antonio by plane?

    A flight from Islip Long Island to San Antonio will travel around 1619.5 mi. Flights usually cover this in 8h 00m, depending on flying conditions and air traffic around both airports.

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

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

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

  • How old do you have to be to fly from Islip Long Island Airport to San Antonio 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 San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Islip, New York to San Antonio?

Best airlines flying from Islip, New York to San Antonio

Compare and see reviews for airlines that fly from Islip, New York to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $300Free CancellationRating
8.0
4,202 reviews
Search Southwest flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Pleasanton
Boerne
Schertz

Why use momondo?

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

Finding the right flight to San Antonio from Islip is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

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

Flights from Islip to San Antonio 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 San Antonio?

Once you have performed a search for Islip to San Antonio 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 San Antonio right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Antonio from Islip. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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