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Cheap flights from San Antonio to New York from $270

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 7/4. 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

Find the cheapest flights from San Antonio to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:51 am - 9:53 am
SAT
-
ISP
23h 02m
1 stop
Frontier Logo
10:57 am - 3:41 pm
ISP
-
SAT
29h 44m
1 stop
$340Frontier
Fri, Jul 17 - Fri, Jul 24
Southwest Logo
3:15 pm - 10:40 pm
SAT
-
ISP
6h 25m
1 stop
Southwest Logo
4:40 pm - 9:40 pm
ISP
-
SAT
6h 00m
1 stop
$385Southwest
Wed, Jul 15 - Tue, Jul 21
Southwest Logo
12:55 pm - 10:40 pm
SAT
-
ISP
8h 45m
2 stops
Southwest Logo
4:40 pm - 9:40 pm
ISP
-
SAT
6h 00m
1 stop
$390Southwest
Wed, Jul 15 - Tue, Jul 21
Southwest Logo
3:15 pm - 10:40 pm
SAT
-
ISP
6h 25m
1 stop
Southwest Logo
6:05 pm - 11:55 pm
ISP
-
SAT
6h 50m
1 stop
$415Southwest
Tue, Jul 14 - Mon, Jul 20
Southwest Logo
12:55 pm - 10:40 pm
SAT
-
ISP
8h 45m
2 stops
Southwest Logo
2:55 pm - 10:25 pm
ISP
-
SAT
8h 30m
2 stops
$417Southwest
Wed, Jul 15 - Tue, Jul 21
Southwest Logo
1:20 pm - 10:40 pm
SAT
-
ISP
8h 20m
2 stops
Southwest Logo
6:05 pm - 11:55 pm
ISP
-
SAT
6h 50m
1 stop
$420Southwest
Tue, Jul 14 - Mon, Jul 20
Southwest Logo
5:15 am - 1:45 pm
SAT
-
ISP
7h 30m
1 stop
Southwest Logo
6:05 pm - 11:55 pm
ISP
-
SAT
6h 50m
1 stop
$431Southwest
Tue, Jul 7 - Mon, Jul 13
Southwest Logo
1:20 pm - 10:40 pm
SAT
-
ISP
8h 20m
2 stops
Southwest Logo
6:05 pm - 11:55 pm
ISP
-
SAT
6h 50m
1 stop
$436Southwest
Tue, Jul 7 - Mon, Jul 13
Southwest Logo
5:15 am - 1:45 pm
SAT
-
ISP
7h 30m
1 stop
Southwest Logo
5:50 pm - 11:25 pm
ISP
-
SAT
6h 35m
1 stop
$437Southwest
Tue, Jul 14 - Mon, Jul 20
Southwest Logo
1:20 pm - 10:40 pm
SAT
-
ISP
8h 20m
2 stops
Southwest Logo
6:05 pm - 11:55 pm
ISP
-
SAT
6h 50m
1 stop
$442Southwest
Tue, Jul 14 - Mon, Jul 20

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Southwest flights from San Antonio to Islip, New York

Our best Southwest deals on San Antonio to Islip, New York flight tickets
Southwest
Jul 15
SAT3:15 pmSan Antonio
6h 25m
1 stop
ISP10:40 pmIslip Long Island
Jul 21
ISP4:40 pmIslip Long Island
6h 00m
1 stop
SAT9:40 pmSan Antonio
$385
Southwest
Jul 15
SAT12:55 pmSan Antonio
8h 45m
2 stops
ISP10:40 pmIslip Long Island
Jul 21
ISP4:40 pmIslip Long Island
6h 00m
1 stop
SAT9:40 pmSan Antonio
$390
Southwest
Jul 14
SAT3:15 pmSan Antonio
6h 25m
1 stop
ISP10:40 pmIslip Long Island
Jul 20
ISP6:05 pmIslip Long Island
6h 50m
1 stop
SAT11:55 pmSan Antonio
$415

Breeze Airways flights from San Antonio to Islip, New York

Our best Breeze Airways deals on San Antonio to Islip, New York flight tickets
Breeze Airways
Sep 14
SAT12:38 pmSan Antonio
21h 42m
2 stops
ISP11:20 amIslip Long Island
Sep 19
ISP12:00 pmIslip Long Island
21h 45m
1 stop
SAT8:45 amSan Antonio
$644
Breeze Airways
Aug 3
SAT11:30 amSan Antonio
25h 12m
2 stops
ISP1:42 pmIslip Long Island
Aug 11
ISP5:27 pmIslip Long Island
23h 46m
2 stops
SAT4:13 pmSan Antonio
$748
Breeze Airways
Aug 3
SAT11:30 amSan Antonio
25h 12m
2 stops
ISP1:42 pmIslip Long Island
Aug 11
ISP2:08 pmIslip Long Island
27h 05m
3 stops
SAT4:13 pmSan Antonio
$774

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Islip, New York 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 June 16, 2026.
Use the filters below to find and compare flights from San Antonio to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Fri 7/17

9:51 am-9:53 am

1 stop23h 02m

Islip Long Island

Fri 7/24

10:57 am-3:41 pm

1 stop29h 44m

$340
Quickest round-trip

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Wed 7/15

3:15 pm-10:40 pm

1 stop6h 25m

Islip Long Island

Tue 7/21

4:40 pm-9:40 pm

1 stop6h 00m

$385

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Wed 7/15

12:55 pm-10:40 pm

2 stops8h 45m

Islip Long Island

Tue 7/21

4:40 pm-9:40 pm

1 stop6h 00m

$390

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Tue 7/14

3:15 pm-10:40 pm

1 stop6h 25m

Islip Long Island

Mon 7/20

6:05 pm-11:55 pm

1 stop6h 50m

$415

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Wed 7/15

12:55 pm-10:40 pm

2 stops8h 45m

Islip Long Island

Tue 7/21

2:55 pm-10:25 pm

2 stops8h 30m

$417

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Tue 7/14

1:20 pm-10:40 pm

2 stops8h 20m

Islip Long Island

Mon 7/20

6:05 pm-11:55 pm

1 stop6h 50m

$420

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Tue 7/7

5:15 am-1:45 pm

1 stop7h 30m

Islip Long Island

Mon 7/13

6:05 pm-11:55 pm

1 stop6h 50m

$431

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Tue 7/7

1:20 pm-10:40 pm

2 stops8h 20m

Islip Long Island

Mon 7/13

6:05 pm-11:55 pm

1 stop6h 50m

$436

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Tue 7/14

5:15 am-1:45 pm

1 stop7h 30m

Islip Long Island

Mon 7/20

5:50 pm-11:25 pm

1 stop6h 35m

$437

San AntonioIslip

SAT - ISP

SATISP

San Antonio

Tue 7/14

1:20 pm-10:40 pm

2 stops8h 20m

Islip Long Island

Mon 7/20

6:05 pm-11:55 pm

1 stop6h 50m

$442

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 New York from

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

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 and Breeze Airways are the most popular carriers operating from San Antonio to Islip Long Island

What airlines fly to Islip, New York?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Islip, New York from San Antonio according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 6 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

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

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

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

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

Fastest flight time

6h 25m

Direct flights

None
The fastest flight from San Antonio to Islip, New York takes 6h 25m
There are no direct flights from San Antonio to Islip, New York. There are no popular flight routes from San Antonio to Islip, New York.
Search flight deals

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

  • 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 25m.

  • 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, New York?

Best airlines flying from San Antonio to Islip, New York

Compare and see reviews for airlines that fly from San Antonio to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $309Free CancellationRating
7.9
4,237 reviews
Search Southwest flights

Traveling to a place near New York?

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Amagansett

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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