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Cheap flights from Porto Alegre to San Antonio from $1,471

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto Alegre to San Antonio departing on 1/5. 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
0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Cheap round-trip flights

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POA
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SAT
5154 mimulti-stop
Multiple Airlines Logo
SAT
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POA
5154 mimulti-stop
Multiple Airlines

momondo Fare Finder

 
Customize your flight search to find flights from Porto Alegre 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Porto Alegre to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Mon 1/5

2:05 pm-11:13 pm

2 stops36h 08m

$1,471

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Mon 1/5

3:25 pm-8:56 pm

2 stops32h 31m

$1,472

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Mon 1/5

12:40 pm-5:15 pm

2 stops31h 35m

$1,779

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Porto Alegre to San Antonio

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 Porto Alegre Salgado Filho to San Antonio?

United Airlines and LATAM Airlines are the most popular carriers operating from Porto Alegre Salgado Filho to San Antonio

When to book flights from Porto Alegre to San Antonio

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

Cheap Porto Alegre to San Antonio (POA to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto Alegre to San Antonio

Fastest flight time

18h 29m

Direct flights

None
The fastest flight from Porto Alegre to San Antonio takes 18h 29m
There are no direct flights from Porto Alegre to San Antonio. There are no popular flight routes from Porto Alegre to San Antonio.
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  • How far is Porto Alegre Salgado Filho to San Antonio by plane?

    The distance between Porto Alegre Salgado Filho and San Antonio is about 5149.9 mi. A reasonable flight in good conditions will take 18h 29m.

  • When did momondo last update prices for flights from Porto Alegre Salgado Filho Airport to San Antonio Airport?

    Prices for flights from Porto Alegre Salgado Filho Airport to San Antonio Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Porto Alegre Salgado Filho Airport to San Antonio Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Alegre Salgado Filho Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The necessary travel and health documents for your San Antonio 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.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Schertz
Pleasanton

Why use momondo?

Why should I use momondo to find a flight deal from Porto Alegre to San Antonio?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from Porto Alegre.

Can I find flights from Porto Alegre to San Antonio with flexible booking policies on momondo?

Yes. All flights to San Antonio from Porto Alegre on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Porto Alegre to San Antonio?

momondo helps you find the best flight between Porto Alegre and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Porto Alegre to San Antonio right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Porto Alegre to San Antonio flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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