$511+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — POA
Nov 7 — Nov 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Antonio to Porto Alegre with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Antonio to Porto Alegre
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Antonio to Porto AlegreExplore 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 October 8, 2026.
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 October 8, 2026.
This Ovago deal was found by Cheapflights users on 10/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:32 pm -
3 stops23h 43m
Wed 11/255:15 am -
2 stops31h 39m
Deal found 10/3![LATAM Airlines logo]()
$1,271
This United Airlines deal was found by Cheapflights users on 10/3. 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.
Wed 11/189:35 am -
2 stops31h 25m
Wed 11/252:00 pm -
2 stops25h 08m
Deal found 10/3![United Airlines logo]()
$1,368
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/1512:50 pm -
2 stops22h 10m
Thu 10/223:30 pm -
2 stops19h 08m
Deal found 10/8![United Airlines logo]()
$1,497
This BestDay deal was found by Cheapflights users on 10/8. 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 BestDay is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:20 pm -
3 stops24h 50m
Thu 10/227:20 am -
2 stops19h 13m
Deal found 10/8![LATAM Airlines logo]()
$1,666
This Mytrip deal was found by Cheapflights users on 10/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:56 pm -
3 stops35h 39m
Thu 10/222:05 pm -
3 stops34h 08m
Deal found 10/8![Multiple Airlines logo]()
$2,055
Best flights from San Antonio to Porto AlegreDiscover carefully curated flight deals from San Antonio to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
Discover carefully curated flight deals from San Antonio to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
This Ovago deal was found by Cheapflights users on 10/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:32 pm -
3 stops23h 43m
Wed 11/255:15 am -
2 stops31h 39m
Deal found 10/3![LATAM Airlines logo]()
$1,271
This United Airlines deal was found by Cheapflights users on 10/3. 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.
Wed 11/189:35 am -
2 stops31h 25m
Wed 11/252:00 pm -
2 stops25h 08m
Deal found 10/3![United Airlines logo]()
$1,368
This LATAM Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 3/302:10 pm -
2 stops24h 40m
Sat 4/312:25 pm -
2 stops23h 29m
Deal found 10/4![LATAM Airlines logo]()
$1,388
Last-minute flights from San Antonio to Porto AlegreDiscover last-minute flight deals from San Antonio to Porto Alegre. Data last updated October 8, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Porto Alegre. Data last updated October 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/1512:50 pm -
2 stops22h 10m
Thu 10/223:30 pm -
2 stops19h 08m
Deal found 10/8![United Airlines logo]()
$1,497
This BestDay deal was found by Cheapflights users on 10/8. 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 BestDay is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:20 pm -
3 stops24h 50m
Thu 10/227:20 am -
2 stops19h 13m
Deal found 10/8![LATAM Airlines logo]()
$1,666
This Mytrip deal was found by Cheapflights users on 10/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:56 pm -
3 stops35h 39m
Thu 10/222:05 pm -
3 stops34h 08m
Deal found 10/8![Multiple Airlines logo]()
$2,055
This Ovago deal was found by Cheapflights users on 10/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:32 pm -
3 stops23h 43m
Wed 11/255:15 am -
2 stops31h 39m
Deal found 10/3![LATAM Airlines logo]()
$1,271
This United Airlines deal was found by Cheapflights users on 10/3. 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.
Wed 11/189:35 am -
2 stops31h 25m
Wed 11/252:00 pm -
2 stops25h 08m
Deal found 10/3![United Airlines logo]()
$1,368
One-way flights from San Antonio to Porto AlegreSearch for one-way flight options from San Antonio to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
Search for one-way flight options from San Antonio to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:21 pm -
3 stops40h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Multiple Airlines logo]()
$511
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 October 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,271 (Ovago) |
One-way from | $511 (Kiwi.com) |
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 7,457,451 searches. Data last updated October 8, 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
Cheapest round-trip
Quickest round-trip
San AntonioPorto Alegre
SAT San Antonio - POA Porto Alegre Salgado Filho
SATPOA
San Antonio
Sat 10/24
8:21 pm-3:20 pm
3 stops40h 59m
Porto Alegre Salgado Filho
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$511
San AntonioPorto Alegre
SAT San Antonio - POA Porto Alegre Salgado Filho
SATPOA
San Antonio
Wed 11/18
4:32 pm-7:15 pm
3 stops23h 43m
Porto Alegre Salgado Filho
Wed 11/25
5:15 am-9:54 am
2 stops31h 39m
$1,271
San AntonioPorto Alegre
SAT San Antonio - POA Porto Alegre Salgado Filho
SATPOA
San Antonio
Wed 11/18
9:35 am-8:00 pm
2 stops31h 25m
Porto Alegre Salgado Filho
Wed 11/25
2:00 pm-12:08 pm
2 stops25h 08m
$1,368
San AntonioPorto Alegre
SAT San Antonio - POA Porto Alegre Salgado Filho
SATPOA
San Antonio
Tue 3/30
2:10 pm-4:50 pm
2 stops24h 40m
Porto Alegre Salgado Filho
Sat 4/3
12:25 pm-9:54 am
2 stops23h 29m
$1,388
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.
SAT-POA
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Antonio
Popular flights
Porto Alegre flight routes