ISP - SAT

$427 Find Cheap Flights from Islip to San Antonio

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to San Antonio departing on 8/3. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to San Antonio, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to San Antonio

Sun, Aug 3 - Fri, Aug 8
Southwest Logo
6:00 am - 12:15 pmISP-SAT
7h 15m1 stop
Southwest Logo
5:10 am - 12:00 pmSAT-ISP
5h 50m1 stop
$427Southwest
Find Deal
Sun, Aug 3 - Fri, Aug 8
Southwest Logo
6:00 am - 2:50 pmISP-SAT
9h 50m2 stops
Southwest Logo
5:10 am - 12:00 pmSAT-ISP
5h 50m1 stop
$432Southwest
Find Deal
Sun, Aug 3 - Fri, Aug 8
Southwest Logo
6:00 am - 3:30 pmISP-SAT
10h 30m2 stops
Southwest Logo
8:05 am - 4:30 pmSAT-ISP
7h 25m2 stops
$473Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
Southwest Logo
12:05 pm - 6:15 pmISP-SAT
7h 10m1 stop
Southwest Logo
4:40 pm - 12:05 amSAT-ISP
6h 25m1 stop
$499Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
Southwest Logo
12:05 pm - 6:15 pmISP-SAT
7h 10m1 stop
Southwest Logo
5:40 am - 2:45 pmSAT-ISP
8h 05m2 stops
$504Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
Southwest Logo
2:40 pm - 11:05 pmISP-SAT
9h 25m2 stops
Southwest Logo
1:20 pm - 12:05 amSAT-ISP
9h 45m2 stops
$509Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
 Logo
10:44 am - 10:42 pmISP-SAT
12h 58m3 stops
 Logo
7:45 am - 10:58 amSAT-ISP
26h 13m3 stops
Fri, Jul 11 - Mon, Jul 14
 Logo
10:44 am - 10:42 pmISP-SAT
12h 58m3 stops
 Logo
6:35 pm - 1:24 pmSAT-ISP
17h 49m2 stops
Sun, Aug 3 - Fri, Aug 8
 Logo
7:39 pm - 10:42 pmISP-SAT
28h 03m3 stops
 Logo
7:10 am - 1:32 pmSAT-ISP
29h 22m3 stops
Wed, Jul 2 - Sun, Jul 6
 Logo
7:25 pm - 11:09 pmISP-SAT
28h 44m3 stops
 Logo
7:05 am - 6:59 pmSAT-ISP
10h 54m2 stops
Useful Info

Good to know

Cheapest flight$427
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.

FAQs for booking flights from Islip to San Antonio

  • What is the cheapest flight from Islip to San Antonio?

    In the last 3 days, the lowest price for a flight from Islip to San Antonio was $510 for a one-way ticket and $427 for a round-trip.

  • Do I need a passport to fly between Islip and San Antonio?

    A passport is not required to fly from Islip to San Antonio.

  • Which airports will I be using when flying from Islip to San Antonio?

    Islip airport is called Islip Long Island and the only airport in San Antonio is San Antonio.

  • Which aircraft models fly most regularly from Islip to San Antonio?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Islip with another airline. Booking your flights between Islip and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Islip to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Islip to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4280 reviews
8.6Crew
7.6Entertainment
8.0Comfort
7.1Food
8.2Boarding
Airline reviews

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

2.0 MediocreAnonymous, Dec 2024MCI - DAL
Read more Southwest reviews

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

It was 2 hours 45 minutes late, for no apparently clear reason.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

It went well. Plane wasn't full. Will be great when assigned seating is in place

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Easy to book and to get check in and get on and off.

It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Everything worked well. Crew was as entertaining as is possible on a plane flight. Southwest still has good legroom:

Crew was great - friendly and helpful with boarding - letting folks know where overhead space was available thus getting us out of the gate on time.

Everything you need to know for your flight from Islip to San Antonio

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.