Cheap Flights from San Antonio to Islip starting at S$ 184

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from San Antonio to Islip

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Cheapest flights

From price

9 16
16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When to buy flight tickets from San Antonio (SAT) to Islip (ISP) the cheapest?

Airlines adjust prices for flights from San Antonio to Islip based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from San Antonio (SAT) to Islip (ISP) cost?

According to Trip.com's data, the lowest price is around S$ 562.
How long is a flight from San Antonio (SAT) to Islip (ISP)?

It takes about 5 hours 50 minutes to fly from San Antonio (SAT) to Islip (ISP).
What is the transportation method from the main airport to downtown in Islip?
- The distance from Long Island Macarthur Airport to downtown is about 11km, by taxi about 30 minutes.
What are the most popular airlines that fly from San Antonio (SAT) to Islip (ISP)?

Airlines with flights from San Antonio (SAT) to Islip (ISP): Southwest Airlines.
How many airports in Islip?

There are 1 airports near Islip: Long Island Macarthur Airport.

How to find a cheap flight from San Antonio to Islip

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Antonio to Islip. Book your flights at the right time and save more.

Choose your dates flexibly and get the best deals on flights from San Antonio to Islip.

Tap 'Date' on the flight search bar to browse the calendar for San Antonio to Islip airfare over the next 6 months in 2025. If you're looking to fly within the next 3 months, the cheapest date seems to be Thu, Mar 20, with one-way flights starting at S$ 184.

Compare cheap flight deals from hundreds of airlines for San Antonio to Islip flights.

Our extensive search lets you compare prices from over 500 airlines to find the cheapest flights from San Antonio to Islip. The cheapest flight at the moment is with Frontier Airlines.

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Book early or wait for last-minute deals.

It's always better to book early. Flight tickets are often at their lowest when first released, usually a year ahead of departure. Keep an eye out as soon as your desired flights open for booking. If you miss the early deals, you may still find lower prices closer to your travel date.

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For the best flight booking experience on the go, download Trip.com and search for cheap flights from San Antonio to Islip to get your exclusive deals.

Find cheapest flight ticket from San Antonio to Islip

Cheapest direct flight price	S$ 184
Off-season for travel	March
Peak season for travel	January
Flight distance	2,610.23km
Average flight time	5 hours 50 minutes
Popular airline	American Airlines