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Porto Alegre

$913+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — POA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from San Antonio to Porto Alegre

Best flights from San Antonio to Porto Alegre
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 December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:37 pmSAT - POA
3 stops24h 08mMultiple Airlines
Wed 3/185:45 amPOA - SAT
3 stops29h 37mMultiple Airlines
Deal found 12/9$913
This KAYAK deal was found by Cheapflights users on 12/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/14:29 pmSAT - POA
2 stops21h 36mLATAM Airlines
Wed 3/182:50 pmPOA - SAT
2 stops23h 52mLATAM Airlines
Deal found 12/11$993
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 3/412:17 pmSAT - POA
2 stops23h 18mUnited Airlines
Sun 3/84:05 pmPOA - SAT
2 stops21h 06mUnited Airlines
Deal found 12/9$1,001
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/13:08 pmSAT - POA
2 stops23h 37mAmerican Airlines
Wed 3/187:20 pmPOA - SAT
3 stops20h 58mAmerican Airlines
Deal found 12/10$3,141

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 December 12, 2025.

Round-trip from

$913
(Mytrip)
From San Antonio to Porto Alegre Salgado Filho
Search Deals

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 December 12, 2025.
Use the filters below to find and compare flights from San Antonio to Porto Alegre that are best for you.

Fly from

San Antonio

Fly to

Porto Alegre

Route

Depart

Return

Price

San AntonioPorto Alegre

SAT - POA

SATPOA

San Antonio

Sun 3/1

7:37 pm-10:45 pm

3 stops24h 08m

Porto Alegre Salgado Filho

Wed 3/18

5:45 am-9:22 am

3 stops29h 37m

$913

San AntonioPorto Alegre

SAT - POA

SATPOA

San Antonio

Sun 3/1

4:29 pm-5:05 pm

2 stops21h 36m

Porto Alegre Salgado Filho

Wed 3/18

2:50 pm-12:42 pm

2 stops23h 52m

$993

San AntonioPorto Alegre

SAT - POA

SATPOA

San Antonio

Wed 3/4

12:17 pm-2:35 pm

2 stops23h 18m

Porto Alegre Salgado Filho

Sun 3/8

4:05 pm-11:11 am

2 stops21h 06m

$1,001

San AntonioPorto Alegre

SAT - POA

SATPOA

San Antonio

Sun 3/1

3:08 pm-5:45 pm

2 stops23h 37m

Porto Alegre Salgado Filho

Wed 3/18

7:20 pm-2:18 pm

3 stops20h 58m

$3,141

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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 LATAM Airlines and United Airlines fly from San Antonio to Porto Alegre in about 21h 36m. The time it takes to get you to your destination can typically vary by up to 1h 42m. Airlines will cover a distance of 5154 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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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