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Porto Alegre

$325+ Cheap flights from San Francisco (SFO) to Porto Alegre (POA)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — POA
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from San Francisco to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 julio 31, 2025.

Round-trip from

$675
(United Airlines)

One-way from

$325
(Copa Airlines)

Popular in

December

Cheapest in

August

Average price

$746
From San Francisco to Porto Alegre Salgado Filho
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One-way flight from San Francisco to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 25% potential increase in price ($318 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($76 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Francisco to Porto Alegre

Cheapest flights from San Francisco to Porto Alegre
Explore the most affordable flight options available from San Francisco to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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.
sáb. 9/134:55 pmSFO - POA
2 stops41h 40mUnited Airlines
sáb. 9/2011:30 amPOA - SFO
2 stops27h 43mUnited Airlines
Deal found 7/30$675
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/206:15 amSFO - POA
2 stops20h 10mLATAM Airlines
sáb. 9/277:20 amPOA - SFO
2 stops31h 10mLATAM Airlines
Deal found 7/30$807
This Copa Airlines deal was found by Cheapflights users on 7/31. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/191:30 amSFO - POA
1 stop18h 50mCopa Airlines
vie. 9/261:27 amPOA - SFO
1 stop25h 58mCopa Airlines
Deal found 7/31$853
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
vie. 9/121:30 amSFO - POA
1 stop18h 50mMultiple Airlines
sáb. 9/205:20 amPOA - SFO
2 stops21h 49mMultiple Airlines
Deal found 7/30$1,036
This Gurufare deal was found by Cheapflights users on 7/30. 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.
jue. 12/251:36 pmSFO - POA
2 stops48h 04mGOL
sáb. 1/105:55 pmPOA - SFO
2 stops20h 11mGOL
Deal found 7/30$1,658
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/276:15 amSFO - POA
2 stops20h 10mDelta
mié. 9/246:40 amPOA - SFO
2 stops20h 01mDelta
Deal found 7/30$2,049

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 julio 31, 2025.
Use the filters below to find and compare flights from San Francisco to Porto Alegre that are best for you.

Fly from

San Francisco

Fly to

Porto Alegre

Route

Depart

Return

Price

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

sáb. 9/13

4:55 pm-2:35 pm

2 stops41h 40m

Porto Alegre Salgado Filho

sáb. 9/20

11:30 am-11:13 am

2 stops27h 43m

$675

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

sáb. 9/20

6:15 am-6:25 am

2 stops20h 10m

Porto Alegre Salgado Filho

sáb. 9/27

7:20 am-10:30 am

2 stops31h 10m

$807

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

vie. 9/19

1:30 am-12:20 am

1 stop18h 50m

Porto Alegre Salgado Filho

vie. 9/26

1:27 am-11:25 pm

1 stop25h 58m

$853

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

vie. 9/12

1:30 am-12:20 am

1 stop18h 50m

Porto Alegre Salgado Filho

sáb. 9/20

5:20 am-11:09 pm

2 stops21h 49m

$1,036

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

jue. 12/25

1:36 pm-6:40 pm

2 stops48h 04m

Porto Alegre Salgado Filho

sáb. 1/10

5:55 pm-9:06 am

2 stops20h 11m

$1,658

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

mié. 8/27

6:15 am-6:25 am

2 stops20h 10m

Porto Alegre Salgado Filho

mié. 9/24

6:40 am-10:41 pm

2 stops20h 01m

$2,049

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

dom. 8/10

1:30 am-12:15 am

1 stop18h 45m

$325

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

lun. 8/11

5:00 am-2:35 pm

2 stops29h 35m

$334

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

sáb. 8/9

4:03 pm-12:15 am

2 stops28h 12m

$363

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

vie. 8/8

8:55 am-1:50 pm

2 stops24h 55m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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

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

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Porto Alegre

What is the cheapest time of day to fly from SFO to POA?

Find hourly flight availability from San Francisco to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Porto Alegre in the afternoon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto Alegre. Reviews last updated julio 31, 2025.
See what other customers who have flown with Delta, LATAM Airlines, and Copa Airlines from San Francisco to Porto Alegre have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,822 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
GOL
7.3
Good
1,091 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Francisco to Porto Alegre round-trip?

    Currently priced at $675, United Airlines will fly you from San Francisco to Porto Alegre and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from LATAM Airlines and Copa Airlines - these airlines can fly you to your destination from $807 and $853, respectively. You may be able to fly from San Francisco to Porto Alegre for 27% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Francisco to Porto Alegre one-way?

    To fly one-way, consider booking your trip with Copa Airlines, which is currently one of the cheapest options available, starting at $325. United Airlines flights start at $334 while deals on Delta start at $394 one-way.

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

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

  • How can I find direct flights from San Francisco 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 Francisco to Porto Alegre.

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

    Yes. Cheapflights offers flight deals from San Francisco 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from San Francisco to Porto Alegre

Discover the top 3 airlines that operate flights from San Francisco to Porto Alegre. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$345Average$790FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$578Average$1,543FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$643Average$694FlexibilityNo cancel feeOn-time69%

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