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Cheap flights from Islip to San Antonio (ISP - SAT) from $304

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ISP — SAT
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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Cheap flight deals from Islip to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 28, 2024.

Round-trip from

$291
From Islip Long Island to San Antonio
Search Deals

How far in advance should I book a flight from Islip, New York to San Antonio?

Travelers have found it’s best to book a flight 22 days in advance to save up to 130% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 22 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to San Antonio 1-2 weeks in advance for as low as $320, or $518 for flights within the next 24 hours.

What is the cheapest month to fly from Islip, New York to San Antonio?

September is one of the best times of the year to fly to San Antonio from Islip, New York. Prices for September average $306 per person but you can even find prices for as low as $89. The most expensive prices can be found in the month of December. Opting for a September flight can save you 39% on your journey compared to booking in December

When is the cheapest time to fly from Islip, New York to San Antonio (ISP - SAT)?

When flying from Islip, New York to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Frontier flights from Islip to San Antonio

Explore cheap flight options specifically provided by Frontier for the route between Islip and San Antonio. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Thu 7/185:34 pmISP - SAT
1 stop26h 49mFrontier
Wed 7/245:39 pmSAT - ISP
1 stop14h 00mFrontier
Deal found 5/27$304
Thu 7/185:34 pmISP - SAT
1 stop26h 49mFrontier
Wed 7/245:39 pmSAT - ISP
1 stop14h 00mFrontier
Deal found 5/27$308

Cheap Islip to San Antonio flights in May & June 2024

Find cheap flight options from Islip to San Antonio specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on May 28, 2024.
Tue 5/289:42 pmISP - SAT
1 stop15h 08mFrontier
Fri 6/77:07 pmSAT - ISP
1 stop11h 33mFrontier
Deal found 5/27$356
Sun 6/92:05 pmISP - SAT
2 stops20h 39mMultiple Airlines
Wed 6/126:45 amSAT - ISP
3 stops28h 40mMultiple Airlines
Deal found 5/28$689

Islip to San Antonio 2024 flight deals

Discover exclusive flight deals for travel between Islip and San Antonio in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Thu 7/185:34 pmISP - SAT
1 stop26h 49mFrontier
Wed 7/245:39 pmSAT - ISP
1 stop14h 00mFrontier
Deal found 5/27$304
Thu 7/185:34 pmISP - SAT
1 stop26h 49mFrontier
Wed 7/245:39 pmSAT - ISP
1 stop14h 00mFrontier
Deal found 5/27$308
Tue 5/289:42 pmISP - SAT
1 stop15h 08mFrontier
Fri 6/77:07 pmSAT - ISP
1 stop11h 33mFrontier
Deal found 5/27$356
Sun 6/92:05 pmISP - SAT
2 stops20h 39mMultiple Airlines
Wed 6/126:45 amSAT - ISP
3 stops28h 40mMultiple Airlines
Deal found 5/28$689

Find flights from Islip to San Antonio within your budget

Customize your flight search to find flights from Islip to San Antonio 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, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$304 - $308

Route

Depart

Return

Price

Islip Long IslandSan Antonio

ISP - SAT

ISPSAT

Islip Long Island

Thu 7/18

1 stop26h 49m

San Antonio

Wed 7/24

1 stop14h 00m

$304

Islip Long IslandSan Antonio

ISP - SAT

ISPSAT

Islip Long Island

Thu 7/18

1 stop26h 49m

San Antonio

Wed 7/24

1 stop14h 00m

$308

Flights are sorted by cheapest first

Deals found on 5/27

No data available for this route at this time. Please check back soon.

Best time to book a flight from Islip to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature and rainfall totals by month.

SAT

Temperature

51.8 - 84.2 °F

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated May 28, 2024.
Frontier
6.3
Okay
4,016 reviews
Check prices

Entertainment

4.9

Boarding

6.6

Comfort

5.8

Crew

7.1

Food

5.1

Overall

6.3

Reviews

1 / 10

I'd thought there would be a complimentary drink atleast.

Frontier
6.3
Okay
4,016 reviews
Frontier
6.3
Okay
4,016 reviews
Check prices

Entertainment

4.9

Boarding

6.6

Comfort

5.8

Crew

7.1

Food

5.1

Overall

6.3

Reviews

1 / 10

I'd thought there would be a complimentary drink atleast.

Related info for your journey

Find useful and relevant information for your journey from Islip to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Islip, New York to San Antonio for under $400 on Cheapflights?

    Yes, there are multiple flights from Islip, New York to San Antonio for under $400. The cheapest flight booked recently is on Frontier for just $304, but on average you can expect to pay $306.

  • What is the cheapest airline to fly from Islip, New York to San Antonio round-trip?

    Currently priced at $304, Frontier will fly you from Islip, New York to San Antonio and back. In addition to Frontier, many other airlines offer competitively priced options for your trip.

  • What does ISP to SAT mean?

    ISP stands for Islip Long Island Airport, while SAT stands for San Antonio Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Islip to San Antonio that include extra baggage allowance?

    The amount of baggage you can bring on your Islip to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Islip to San Antonio with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Islip to San Antonio that include hotel bookings?

    Yes. In addition to deals on Islip to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to San Antonio.

  • Can I find deals for business class flights from Islip to San Antonio?

    Yes. Cheapflights offers flight deals from Islip to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Islip to San Antonio that allow pets onboard?

    Many airlines flying from Islip to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Islip to San Antonio?

    Yes, you can often find last-minute deals on Islip to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Islip, New York to San Antonio flight deals updated?

    The Islip, New York to San Antonio flight deals you see on this page were last updated on 5/28.

  • When is the best time to book a flight from Islip, New York to San Antonio?

    Currently, September is the cheapest month in which you can book a flight from Islip, New York to San Antonio (average of $291). Flying from Islip, New York to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Search flights from Islip to San Antonio by cabin class

Find flights from Islip to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Islip to San Antonio?

Deals for Islip to San Antonio flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Islip to San Antonio?

Millions of users choose and trust Cheapflights to book the best flight deals from Islip to San Antonio for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Islip to San Antonio with no change fees?

Yes, we can. To see specific flights from Islip to San Antonio with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Islip to San Antonio become cheaper?

Yes, Cheapflights offers price alerts on Islip to San Antonio flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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