Which airports can I use when flying from Islip to San Antonio?

Flights from Islip to San Antonio usually depart from Islip Long Island (ISP) and arrive at San Antonio (SAT).

What cabin classes can I book on flights from Islip to San Antonio?

Only Economy Class is available on flights from Islip to San Antonio.

Which airports do connecting flights from Islip to San Antonio pass through?

Most connecting flights from Islip to San Antonio pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Islip to San Antonio?

Yes. Flexible dates can save you up to 40% on flights from Islip to San Antonio. Tuesday is the cheapest departure day at $300 round-trip on average, while Sunday is the most expensive at $496, a difference of $196. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in San Antonio?

Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.

How long is a flight from Islip to San Antonio?

A nonstop flight from Islip to San Antonio takes 00m, covering 1,621 miles.

Do I need a passport to fly from Islip to San Antonio?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Islip to San Antonio changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $457 to $1,443. That means the highest observed fare was about 3x higher than the lowest one.

How are flight prices from Islip to San Antonio looking right now?

One-way fares from Islip to San Antonio are currently lower than usual. Average one-way flight prices are about $384, which is 17% below the typical average for this route.

What is the time difference between Islip and San Antonio?

San Antonio is 1 hour behind Islip (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at San Antonio Airport (SAT)?

San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates averaging $53 for economy cars. Top options include: • Europcar • Fox • Dollar • Hertz • Alamo

How much should I expect to pay for a Islip to San Antonio flight?

Round-trip flights from Islip to San Antonio range from $379 to $450, with an average of $444 over the past 12 months. Anything below $379 counts as a good deal.

How much is a round-trip flight from Islip to San Antonio?

Round-trip flights from Islip to San Antonio typically range from $379 to $450. The lowest price found in the past 5 days was $457, on Frontier.

Which airline is the cheapest to fly from Islip to San Antonio?

Frontier ($457) and Breeze Airways ($461) are the cheapest airlines to fly round-trip from Islip to San Antonio according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Islip to San Antonio?

Flights via Baltimore/Washington (BWI) offer the most affordable fares, with an average round-trip price of $405. Based on KAYAK data over the past 3 months.

When flying from Islip to San Antonio which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Islip to San Antonio layovers at 3h 59m over the past 3 months.

$194 CHEAP FLIGHTS from Islip to San Antonio (ISP - SAT)

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Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$457

Typical prices: $379-$450

Frontier

Mon 11/19Sat 11/24

ISP - SAT • 1 stop

Cheapest one-way

$194

Typical prices: $181-$584

Multiple Airlines

Fri 11/16

ISP - SAT • 3 stops

Nonstop flights

Not available

There are currently no direct flights between Islip and San Antonio. You'll need to take a connecting flight to reach the destination.

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Flight Deals

Cheap Flights from Islip to San Antonio (ISP-SAT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Islip to San Antonio

Thu, Nov 19 - Tue, Nov 24

6:33 pm - 11:11 amISP Islip Long Island-SAT San Antonio

17h 38m1 stop Orlando

8:28 pm - 3:45 pmSAT San Antonio-ISP Islip Long Island

18h 17m2 stops Denver Intl Orlando

$457Frontier

Wed, Nov 11 - Fri, Nov 13

12:00 pm - 8:45 amISP Islip Long Island-SAT San Antonio

21h 45m1 stop Raleigh-Durham

6:23 pm - 11:20 amSAT San Antonio-ISP Islip Long Island

15h 57m2 stops Memphis Raleigh-Durham

$461Breeze Airways

Fri, Nov 27 - Sat, Dec 5

4:25 pm - 11:55 pmISP Islip Long Island-SAT San Antonio

8h 30m1 stop Orlando

2:20 pm - 9:45 pmSAT San Antonio-ISP Islip Long Island

6h 25m1 stop Baltimore/Washington

$483Southwest

Thu, Nov 19 - Mon, Nov 23

6:33 pm - 11:11 amISP Islip Long Island-SAT San Antonio

17h 38m1 stop Orlando

8:28 pm - 3:45 pmSAT San Antonio-ISP Islip Long Island

18h 17m2 stops Denver Intl Orlando

$484Frontier

Fri, Nov 27 - Sat, Dec 5

4:25 pm - 11:55 pmISP Islip Long Island-SAT San Antonio

8h 30m1 stop Orlando

12:40 pm - 9:45 pmSAT San Antonio-ISP Islip Long Island

8h 05m2 stops Dallas Love Field Baltimore/Washington

$488Southwest

Thu, Dec 3 - Fri, Dec 4

12:30 pm - 9:25 pmISP Islip Long Island-SAT San Antonio

9h 55m1 stop Baltimore/Washington

2:45 pm - 9:45 pmSAT San Antonio-ISP Islip Long Island

6h 00m1 stop Baltimore/Washington

$490Southwest

Thu, Dec 3 - Fri, Dec 4

12:30 pm - 8:40 pmISP Islip Long Island-SAT San Antonio

9h 10m2 stops Baltimore/Washington Dallas Love Field

2:45 pm - 9:45 pmSAT San Antonio-ISP Islip Long Island

6h 00m1 stop Baltimore/Washington

$490Southwest

Thu, Nov 19 - Tue, Nov 24

6:05 am - 11:15 amISP Islip Long Island-SAT San Antonio

6h 10m1 stop Baltimore/Washington

10:45 am - 5:20 pmSAT San Antonio-ISP Islip Long Island

5h 35m1 stop Tampa

$494Southwest

Thu, Nov 19 - Mon, Nov 23

6:05 am - 11:15 amISP Islip Long Island-SAT San Antonio

6h 10m1 stop Baltimore/Washington

5:05 am - 12:45 pmSAT San Antonio-ISP Islip Long Island

6h 40m1 stop Orlando

$494Southwest

Thu, Dec 3 - Fri, Dec 4

12:30 pm - 8:40 pmISP Islip Long Island-SAT San Antonio

9h 10m2 stops Baltimore/Washington Dallas Love Field

6:45 am - 4:15 pmSAT San Antonio-ISP Islip Long Island

8h 30m2 stops Dallas Love Field Baltimore/Washington

$495Southwest

Recent last minute flight deals from Islip to San Antonio

Wed, Nov 4 - Thu, Nov 12

12:00 pm - 8:45 amISP Islip Long Island-SAT San Antonio

21h 45m1 stop Raleigh-Durham

9:25 am - 2:22 pmSAT San Antonio-ISP Islip Long Island

27h 57m1 stop Raleigh-Durham

$878Breeze Airways

Wed, Nov 4 - Fri, Nov 13

12:00 pm - 8:45 amISP Islip Long Island-SAT San Antonio

21h 45m1 stop Raleigh-Durham

6:23 pm - 11:20 amSAT San Antonio-ISP Islip Long Island

15h 57m2 stops Memphis Raleigh-Durham

$934Breeze Airways

Wed, Nov 4 - Thu, Nov 12

12:00 pm - 8:45 amISP Islip Long Island-SAT San Antonio

21h 45m1 stop Raleigh-Durham

9:25 am - 11:15 amSAT San Antonio-ISP Islip Long Island

24h 50m2 stops Raleigh-Durham Fort Myers SW Florida Intl

$1,158Breeze Airways

Sat, Oct 31 - Mon, Nov 2

12:00 pm - 9:45 amISP Islip Long Island-SAT San Antonio

22h 45m1 stop Raleigh-Durham

12:38 pm - 11:20 amSAT San Antonio-ISP Islip Long Island

21h 42m2 stops Memphis Raleigh-Durham

$1,184Breeze Airways

Wed, Nov 4 - Fri, Nov 13

12:00 pm - 8:45 amISP Islip Long Island-SAT San Antonio

21h 45m1 stop Raleigh-Durham

6:23 pm - 7:02 pmSAT San Antonio-ISP Islip Long Island

23h 39m3 stops Memphis Raleigh-Durham Fort Myers SW Florida Intl

$1,198Breeze Airways

Thu, Nov 5 - Thu, Nov 12

10:57 am - 11:58 amISP Islip Long Island-SAT San Antonio

26h 01m2 stops Raleigh-Durham Memphis

9:25 am - 2:22 pmSAT San Antonio-ISP Islip Long Island

27h 57m1 stop Raleigh-Durham

$1,434Breeze Airways

Thu, Nov 5 - Fri, Nov 13

10:57 am - 11:58 amISP Islip Long Island-SAT San Antonio

26h 01m2 stops Raleigh-Durham Memphis

6:23 pm - 11:20 amSAT San Antonio-ISP Islip Long Island

15h 57m2 stops Memphis Raleigh-Durham

$1,489Breeze Airways

Thu, Nov 5 - Mon, Nov 9

10:57 am - 11:58 amISP Islip Long Island-SAT San Antonio

26h 01m2 stops Raleigh-Durham Memphis

12:38 pm - 11:20 amSAT San Antonio-ISP Islip Long Island

21h 42m2 stops Memphis Raleigh-Durham

$1,629Breeze Airways

Booking Insights

Price, demand and travel trends for Islip to San Antonio flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Islip to San Antonio? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Islip to San Antonio departing in november.

Find deals

Cheapest flight	$194

One-way flight from Islip to San Antonio

When to book flights from Islip to San Antonio

Are your dates flexible? Find out the best times to travel from Islip to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Islip to San Antonio?
Only Economy Class is available on flights from Islip to San Antonio.
How long is a flight from Islip to San Antonio?
A nonstop flight from Islip to San Antonio takes 00m, covering 1,621 miles.
Do I need a passport to fly from Islip to San Antonio?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Islip to San Antonio flight?
Round-trip flights from Islip to San Antonio range from $379 to $450, with an average of $444 over the past 12 months. Anything below $379 counts as a good deal.
Have flight prices from Islip to San Antonio changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $457 to $1,443. That means the highest observed fare was about 3x higher than the lowest one.
How are flight prices from Islip to San Antonio looking right now?
One-way fares from Islip to San Antonio are currently lower than usual. Average one-way flight prices are about $384, which is 17% below the typical average for this route.
What car rental options are available at San Antonio Airport (SAT)?
San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates averaging $53 for economy cars. Top options include:

• Europcar
• Fox
• Dollar
• Hertz
• Alamo
Which airports can I use when flying from Islip to San Antonio?
Flights from Islip to San Antonio usually depart from Islip Long Island (ISP) and arrive at San Antonio (SAT).
Which airports do connecting flights from Islip to San Antonio pass through?
Most connecting flights from Islip to San Antonio pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Islip to San Antonio?
Yes. Flexible dates can save you up to 40% on flights from Islip to San Antonio. Tuesday is the cheapest departure day at $300 round-trip on average, while Sunday is the most expensive at $496, a difference of $196.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Islip and San Antonio?
San Antonio is 1 hour behind Islip (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in San Antonio?
Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $300, about $196 less than Sunday fares (40% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to San Antonio Airport.

• Wyndham Garden San Antonio Airport
• Heritage Inn & Suites San Antonio Airport, Trademark Wyndham
• La Quinta Inn & Suites by Wyndham San Antonio Airport

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ISP - SAT

$194 Find Cheap Flights from Islip to San Antonio - Compare and Save

Everything you should know

Cheap Flights from Islip to San Antonio (ISP-SAT)

Recent round-trip flight deals from Islip to San Antonio

Recent one-way flight deals from Islip to San Antonio

Recent last minute flight deals from Islip to San Antonio

Price, demand and travel trends for Islip to San Antonio flights

How much is a round-trip flight from Islip to San Antonio?

Which airline is the cheapest to fly from Islip to San Antonio?

What is the cheapest layover airport when flying from Islip to San Antonio?

When flying from Islip to San Antonio which airport offers the shortest layover?

Key details for Islip to San Antonio flights

Cheapest flight

When to book flights from Islip to San Antonio

Your Islip to San Antonio flight questions, answered

Your guide to booking Islip to San Antonio flights

More options for your flight from Islip to San Antonio

Complete your trip to San Antonio with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Islip to San Antonio

Find direct flights to and from Islip and San Antonio

Flights from domestic origins to San Antonio

Flights to other popular destinations

Find deals for your return flight