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$295+ Cheap flights from Porto Alegre (POA) to San Antonio (SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SAT
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Porto Alegre to San Antonio

Cheapest flights from Porto Alegre to San Antonio
Explore the most affordable flight options available from Porto Alegre to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This LATAM Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:25 am
POA
-
SAT
2 stops28h 14m
LATAM Airlines
Mon 8/248:00 am
SAT
-
POA
2 stops32h 15m
LATAM Airlines
Deal found 1/26$1,005
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:30 pm
POA
-
SAT
2 stops19h 18m
United Airlines
Mon 8/244:20 pm
SAT
-
POA
2 stops18h 50m
United Airlines
Deal found 1/28$1,101

Find flight deals from Porto Alegre to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) 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 January 29, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars
Provider with most accurate pricing for Porto Alegre Salgado Filho-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-San Antonio flights.
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Porto Alegre to San Antonio that are best for you.

Fly from

Porto Alegre

Fly to

San Antonio

Route

Depart

Return

Price

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Mon 3/9

8:45 pm-11:59 pm

3 stops29h 14m

$339

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Fri 3/6

6:00 am-11:59 pm

3 stops44h 59m

$345

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Sun 3/8

11:15 am-7:58 pm

3 stops34h 43m

$358

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Sat 3/7

3:20 pm-12:23 pm

3 stops48h 03m

$361

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Mon 3/9

1:30 am-11:59 pm

2 stops24h 29m

$365

Porto AlegreSan Antonio

POA - SAT

POASAT

Porto Alegre Salgado Filho

Wed 3/4

1:30 am-1:38 pm

2 stops39h 08m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • Most accurate provider: When it comes to deals on Porto Alegre-San Antonio flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Porto Alegre-San Antonio flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Porto Alegre-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto Alegre-San Antonio flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto Alegre-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto Alegre to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Porto Alegre 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.

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre 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 deals for flights from Porto Alegre to San Antonio that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto Alegre 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.

Traveling to a place near San Antonio?

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

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