Cheap Flights to San Antonio: San Antonio Flight Deals

View €101 flight on Sat, 22 Nov 2025Opens in a new window

Popular airlines to San Antonio

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Cheap round-trip flights to San Antonio

Prices were available within the past 7 days and start at €101 for one-way flights and €233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Azul
Sat, 22 Nov - Tue, 25 Nov
CWB
Curitiba
ASU
Asuncion
€233 Return, found 1 day ago
€233
Return
found 1 day ago
Select Azul flight, departing Sat, 22 Nov from Curitiba to Asuncion, returning Tue, 25 Nov, priced at €233 found 1 day ago
GOL Linhas Aereas S.A.
Thu, 9 Oct - Sun, 12 Oct
GRU
Sao Paulo
ASU
Asuncion
€274 Return, just found
€274
Return
just found
Select GOL Linhas Aereas S.A. flight, departing Thu, 9 Oct from Sao Paulo to Asuncion, returning Sun, 12 Oct, priced at €274 just found
LATAM Airlines Group
Thu, 9 Oct - Sun, 12 Oct
GRU
Sao Paulo
ASU
Asuncion
€337 Return, just found
€337
Return
just found
Select LATAM Airlines Group flight, departing Thu, 9 Oct from Sao Paulo to Asuncion, returning Sun, 12 Oct, priced at €337 just found
Aerolineas Argentinas
Thu, 9 Oct - Sun, 12 Oct
GRU
Sao Paulo
ASU
Asuncion
€417 Return, just found
€417
Return
just found
Select Aerolineas Argentinas flight, departing Thu, 9 Oct from Sao Paulo to Asuncion, returning Sun, 12 Oct, priced at €417 just found
Copa
Fri, 24 Oct - Fri, 31 Oct
PTY
Panama City
ASU
Asuncion
€576 Return, found 18 hours ago
€576
Return
found 18 hours ago
Select Copa flight, departing Fri, 24 Oct from Panama City to Asuncion, returning Fri, 31 Oct, priced at €576 found 18 hours ago

Frequently asked questions

What is the name of San Antonio's airport?
Silvio Pettirossi Intl. Airport (ASU) is the only airport that serves San Antonio.
How far is Silvio Pettirossi Intl. Airport (ASU) from central San Antonio?
It's 21 kilometres from ASU to downtown San Antonio. Make things easy by working out the fastest way of travelling from the terminal to the city centre before you arrive.
What airport is best to fly into San Antonio?
Situated 21 kilometres from the centre of town, Silvio Pettirossi Intl. Airport (ASU) will likely be your first stop in San Antonio.
How many airlines fly to San Antonio?
There are 10 airlines connecting San Antonio with 18 airports across the world.
Which airlines fly to San Antonio?
San Antonio receives the majority of its flights from Aerolineas Argentinas, Paranair and JetSmart with Aerolineas Argentinas being the number one choice of carrier. Buenos Aires is the most popular city for passengers to depart from.
How many nonstop flights are there to San Antonio?
Organising an unforgettable San Antonio adventure is easy when there are 120 direct flights each week to pick from.
Where are the most popular flights to San Antonio departing from?
Travellers often set off from Buenos Aires, Sao Paulo and Montevideo airports when going to San Antonio.
How long is the flight to San Antonio Airport?
Which city you depart from determines how long you'll be strapped into your seat. From Buenos Aires to San Antonio, the average flight time is 1 hour and 53 minutes. From Sao Paulo it takes about 2 hours and 10 minutes, and from Montevideo it's 1 hour and 50 minutes.
How to book the cheapest flight to San Antonio?
Don't leave booking your flight to San Antonio until the last moment. That's one trick seasoned travellers use to get the best deals. Booking in advance means more options and more affordable flights. Also, do some online research and compare your options. If your destination has a few airports, you may be able to nab a great price by flying into one that's further away. Lastly, another simple way to save some cash is be ready to book at a moment's notice. If you stumble on an irresistible deal, don't think twice — snap it up while you can.
Do you have any tips for my flight to San Antonio?
No matter where you're coming from, flying can be a pleasant experience if you've prepared well. Follow these handy hints that will get your San Antonio holiday started on the right foot. What to pack in your hand luggage:

  • First and foremost, put in your passport, official ID, wallet and daily medications. Next, you'll need some extra in-flight entertainment to while away the time. A juicy novel and a laptop filled with your favourite shows are some great options. If you hope to take a short nap, a neck pillow and a pair of noise-cancelling headphones will also be useful. Finally, leave some space for a toothbrush and some deodorant to ensure you step off the plane looking fresh and raring to go.

Do not pack the following items in your hand luggage:

  • Make sure you don't have a pocket knife lurking in the bottom of your hand luggage. Other banned items include explosive or flammable products, such as fuel and matches, and liquids and gels in containers with a volume of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Comfort should be your top priority when choosing what to wear on your flight. Loose clothing is a sensible choice, as are flat, enclosed shoes.
  • Deep vein thrombosis (DVT) can pose a risk on long-haul flights. It results from blood clots forming due to poor circulation and inactivity, so do some gentle leg and foot exercises in your seat and consider wearing compression socks or tights.

How to get through airport security fast when flying to San Antonio?
The simple answer is — be prepared. We've put together some tips and tricks for a fuss-free trip through airport security. Watch out San Antonio, here you come:

  • Security personnel first need to make sure that you have a valid ID and matching boarding pass before you can proceed any further. Keep them within easy reach.
  • Time to strip down. Well kind of. Your belt, coat, keys and other items in your pocket, like your earphones, will be required to go through the X-ray machine. Make your life easier by removing them as your turn draws near.
  • Your electronic gadgets like phones and laptops will also have to go on a tray to be scanned. Don't worry though, you'll be back online soon enough.
  • Travelling with your favourite perfume? Not a problem. As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-close bag, you're allowed to bring it with you in your carry-on.
  • The right choice of footwear can save you several precious minutes. Boots and heavy shoes are often required to be removed and X-rayed separately. Slip-on sneakers are usually not.
  • Sharp items are prohibited in the cabin. They'll be confiscated at security, so pack them safely away in your checked luggage.

Book with confidence

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to San Antonio. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to San Antonio. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to San Antonio, or are just on the lookout for the best flights to San Antonio, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in San Antonio to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Travel information

Destination airport
Silvio Pettirossi Intl.
Destination airport IATA code
ASU
Destination city name
Asuncion
Return price
€233

Trending flights to San Antonio

Prices were available within the past 7 days and start at €101 for one-way flights and €233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Sat, 29 Nov - Sun, 7 Dec
DUB
Dublin
ASU
Asuncion
€887 Return, found 17 hours ago
€887
Return
found 17 hours ago
Select KLM flight, departing Sat, 29 Nov from Dublin to Asuncion, returning Sun, 7 Dec, priced at €887 found 17 hours ago

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