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Cheap flights from San Antonio to New York from $194

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to New York departing on 11/26. 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
0 bags

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Cheap round-trip flights

Multiple Airlines Logo
7:10 pm - 8:42 pmSAT-ISP
24h 32m1 stop
Multiple Airlines Logo
4:58 pm - 11:40 pmISP-SAT
31h 42m2 stops
$315Multiple Airlines
Find Deal
lun., oct. 20 - lun., oct. 27
Frontier Logo
8:43 pm - 9:09 amSAT-ISP
11h 26m2 stops
Frontier Logo
8:49 am - 7:30 pmISP-SAT
11h 41m2 stops
$333Frontier
Find Deal
jue., oct. 30 - dom., nov. 2
Frontier Logo
8:38 pm - 8:54 amSAT-ISP
11h 16m2 stops
Frontier Logo
8:49 am - 7:30 pmISP-SAT
11h 41m2 stops
$349Frontier
Find Deal
jue., nov. 13 - dom., nov. 16
Multiple Airlines Logo
4:55 pm - 8:42 pmSAT-ISP
26h 47m1 stop
Multiple Airlines Logo
2:25 pm - 2:17 pmISP-SAT
24h 52m2 stops
$351Multiple Airlines
Find Deal
lun., oct. 6 - vie., oct. 31
Multiple Airlines Logo
4:55 pm - 10:37 amSAT-ISP
16h 42m1 stop
Multiple Airlines Logo
4:58 pm - 11:40 pmISP-SAT
31h 42m2 stops
$376Multiple Airlines
Find Deal
jue., oct. 23 - lun., oct. 27
Multiple Airlines Logo
4:55 pm - 8:42 pmSAT-ISP
26h 47m1 stop
Multiple Airlines Logo
4:58 pm - 5:10 pmISP-SAT
25h 12m1 stop
$385Multiple Airlines
Find Deal
lun., oct. 6 - vie., oct. 31
Southwest Logo
6:40 am - 2:35 pmSAT-ISP
6h 55m1 stop
Southwest Logo
5:35 pm - 11:25 pmISP-SAT
6h 50m1 stop
$403Southwest
Find Deal
lun., oct. 20 - lun., oct. 27
Southwest Logo
5:35 am - 2:35 pmSAT-ISP
8h 00m2 stops
Southwest Logo
5:35 pm - 11:25 pmISP-SAT
6h 50m1 stop
$418Southwest
Find Deal
jue., oct. 23 - lun., oct. 27
Southwest Logo
1:50 pm - 11:45 pmSAT-ISP
8h 55m2 stops
Southwest Logo
5:30 am - 5:10 pmISP-SAT
12h 40m2 stops
$429Southwest
Find Deal
lun., oct. 20 - lun., oct. 27
Southwest Logo
4:35 pm - 11:45 pmSAT-ISP
6h 10m1 stop
Southwest Logo
5:35 pm - 11:25 pmISP-SAT
6h 50m1 stop
$439Southwest
Find Deal
jue., oct. 23 - lun., oct. 27

Southwest flights from San Antonio to Islip

Our best Southwest deals on San Antonio to Islip flight tickets
Southwest
Oct 20
SAT6:40 amSan Antonio
6h 55m
1 stop
ISP2:35 pmIslip Long Island
Oct 27
ISP5:35 pmIslip Long Island
6h 50m
1 stop
SAT11:25 pmSan Antonio
$403
Find similar
Southwest
Oct 23
SAT5:35 amSan Antonio
8h 00m
2 stops
ISP2:35 pmIslip Long Island
Oct 27
ISP5:35 pmIslip Long Island
6h 50m
1 stop
SAT11:25 pmSan Antonio
$418
Find similar
Southwest
Oct 20
SAT1:50 pmSan Antonio
8h 55m
2 stops
ISP11:45 pmIslip Long Island
Oct 27
ISP5:30 amIslip Long Island
12h 40m
2 stops
SAT5:10 pmSan Antonio
$429
Find similar

Frontier flights from San Antonio to Islip

Our best Frontier deals on San Antonio to Islip flight tickets
Frontier
Oct 30
SAT8:43 pmSan Antonio
11h 26m
2 stops
ISP9:09 amIslip Long Island
Nov 2
ISP8:49 amIslip Long Island
11h 41m
2 stops
SAT7:30 pmSan Antonio
$333
Find similar
Frontier
Nov 13
SAT8:38 pmSan Antonio
11h 16m
2 stops
ISP8:54 amIslip Long Island
Nov 16
ISP8:49 amIslip Long Island
11h 41m
2 stops
SAT7:30 pmSan Antonio
$349
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Islip 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 septiembre 17, 2025.
Use the filters below to find and compare flights from San Antonio to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioIslip

SAT - ISP

SATISP

San Antonio

lun. 10/20

7:10 pm-8:42 pm

1 stop24h 32m

Islip Long Island

lun. 10/27

4:58 pm-11:40 pm

2 stops31h 42m

$315

San AntonioIslip

SAT - ISP

SATISP

San Antonio

jue. 10/30

8:43 pm-9:09 am

2 stops11h 26m

Islip Long Island

dom. 11/2

8:49 am-7:30 pm

2 stops11h 41m

$333

San AntonioIslip

SAT - ISP

SATISP

San Antonio

jue. 11/13

8:38 pm-8:54 am

2 stops11h 16m

Islip Long Island

dom. 11/16

8:49 am-7:30 pm

2 stops11h 41m

$349

San AntonioIslip

SAT - ISP

SATISP

San Antonio

lun. 10/6

4:55 pm-8:42 pm

1 stop26h 47m

Islip Long Island

vie. 10/31

2:25 pm-2:17 pm

2 stops24h 52m

$351

San AntonioIslip

SAT - ISP

SATISP

San Antonio

jue. 10/23

4:55 pm-10:37 am

1 stop16h 42m

Islip Long Island

lun. 10/27

4:58 pm-11:40 pm

2 stops31h 42m

$376

San AntonioIslip

SAT - ISP

SATISP

San Antonio

lun. 10/6

4:55 pm-8:42 pm

1 stop26h 47m

Islip Long Island

vie. 10/31

4:58 pm-5:10 pm

1 stop25h 12m

$385

San AntonioIslip

SAT - ISP

SATISP

San Antonio

lun. 10/20

6:40 am-2:35 pm

1 stop6h 55m

Islip Long Island

lun. 10/27

5:35 pm-11:25 pm

1 stop6h 50m

$403

San AntonioIslip

SAT - ISP

SATISP

San Antonio

jue. 10/23

5:35 am-2:35 pm

2 stops8h 00m

Islip Long Island

lun. 10/27

5:35 pm-11:25 pm

1 stop6h 50m

$418

San AntonioIslip

SAT - ISP

SATISP

San Antonio

lun. 10/20

1:50 pm-11:45 pm

2 stops8h 55m

Islip Long Island

lun. 10/27

5:30 am-5:10 pm

2 stops12h 40m

$429

San AntonioIslip

SAT - ISP

SATISP

San Antonio

jue. 10/23

4:35 pm-11:45 pm

1 stop6h 10m

Islip Long Island

lun. 10/27

5:35 pm-11:25 pm

1 stop6h 50m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San Antonio to Islip

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 airline that flies from San Antonio to Islip Long Island?

Southwest is the most popular carrier operating from San Antonio to Islip Long Island

What airlines fly to Islip?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Islip from San Antonio according to our data. United Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Islip. Keep in mind that there are 7 different airlines that fly to Islip on a routine basis, so you have a few additional options to choose from.

When to book flights from San Antonio to Islip

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

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

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

Direct flights

None
There are no direct flights from San Antonio to Islip. There are no popular flight routes from San Antonio to Islip.
Search flight deals

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

    The distance between San Antonio and Islip Long Island is about 1619.5 mi. A reasonable flight in good conditions will take 6h 10m.

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

    Prices for flights from San Antonio Airport to Islip Long Island Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The necessary travel and health documents for your Islip Long Island 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 San Antonio to Islip?

Best airlines flying from San Antonio to Islip

Compare and see reviews for airlines that fly from San Antonio to Islip with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $309Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

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Why use momondo?

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

It is quick and easy to find San Antonio to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

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

Yes. All flights to Islip from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Antonio to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from San Antonio.

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

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

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