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Porto Alegre

$1,144+ Cheap flights from San Antonio (SAT) to Porto Alegre (POA)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — POA
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap flight deals from San Antonio to Porto Alegre

Cheapest flights from San Antonio to Porto Alegre
Explore the most affordable flight options available from San Antonio to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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.
Mon 8/249:37 am
SAT
-
POA
2 stops26h 28m
United Airlines
Thu 8/273:25 pm
POA
-
SAT
2 stops26h 14m
United Airlines
Deal found 3/9$1,144
This BusinessClass deal was found by Cheapflights users on 3/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:29 pm
SAT
-
POA
2 stops22h 31m
LATAM Airlines
Mon 3/307:25 am
POA
-
SAT
2 stops19h 13m
LATAM Airlines
Deal found 3/9$1,186
This Gurufare deal was found by Cheapflights users on 3/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2110:50 am
SAT
-
POA
2 stops23h 40m
Multiple Airlines
Mon 3/307:25 am
POA
-
SAT
2 stops19h 13m
Multiple Airlines
Deal found 3/11$1,188
This KAYAK deal was found by Cheapflights users on 3/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2110:50 am
SAT
-
POA
2 stops28h 10m
LATAM Airlines
Mon 3/307:25 am
POA
-
SAT
2 stops28h 30m
LATAM Airlines
Deal found 3/10$1,194
This Gurufare deal was found by Cheapflights users on 3/9. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/211:37 pm
SAT
-
POA
2 stops20h 53m
Multiple Airlines
Sun 3/296:45 am
POA
-
SAT
3 stops19h 53m
Multiple Airlines
Deal found 3/9$1,195
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Tue 3/172:15 pm
SAT
-
POA
2 stops22h 10m
United Airlines
Fri 4/244:05 pm
POA
-
SAT
2 stops22h 19m
United Airlines
Deal found 3/12$1,211

Find flight deals from San Antonio to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Porto Alegre (POA). 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,144
(United Airlines)
Provider with most accurate pricing for San Antonio-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Porto Alegre Salgado Filho flights.
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From San Antonio to Porto Alegre Salgado Filho
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Porto Alegre 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 March 14, 2026.
Use the filters below to find and compare flights from San Antonio to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioPorto Alegre

SAT - POA

SATPOA

San Antonio

Mon 8/24

9:37 am-2:05 pm

2 stops26h 28m

Porto Alegre Salgado Filho

Thu 8/27

3:25 pm-3:39 pm

2 stops26h 14m

$1,144
Quickest round-trip

San AntonioPorto Alegre

SAT - POA

SATPOA

San Antonio

Fri 4/10

11:46 am-2:35 pm

2 stops24h 49m

Porto Alegre Salgado Filho

Sat 4/18

4:55 pm-8:42 am

2 stops17h 47m

$7,180

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Antonio-Porto Alegre flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Porto Alegre flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Porto Alegre flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Antonio-Porto Alegre 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 San Antonio to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from San Antonio 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 San Antonio to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Antonio to Porto Alegre?

    Airlines like United Airlines fly from San Antonio to Porto Alegre in about 26h 28m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5154 mi.

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

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

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

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

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

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

See more FAQs

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