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$800+ Cheap flights from Porto Alegre (POA) to San Francisco (SFO)

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 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SFO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Porto Alegre to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to San Francisco (SFO). 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 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$792
(Air Canada)

Popular in

December

Cheapest in

March

Average price

$914
Provider with most accurate pricing for Porto Alegre Salgado Filho-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-San Francisco flights.
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From Porto Alegre Salgado Filho to San Francisco
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Highest demand for flights based on searches. 3% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Porto Alegre to San Francisco

Cheapest flights from Porto Alegre to San Francisco
Explore the most affordable flight options available from Porto Alegre to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:55 pmPOA - SFO
2 stops24h 45mLATAM Airlines
Thu 11/136:00 amSFO - POA
2 stops30h 00mLATAM Airlines
Deal found 10/29$925
This Copa Airlines deal was found by Cheapflights users on 10/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:35 amPOA - SFO
1 stop26h 42mCopa Airlines
Sun 12/1412:36 amSFO - POA
1 stop18h 54mCopa Airlines
Deal found 10/30$952
This Copa Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 10/301:30 amPOA - SFO
1 stop26h 09mCopa Airlines
Wed 11/1212:36 amSFO - POA
1 stop18h 54mCopa Airlines
Deal found 10/29$987
This Copa Airlines deal was found by Cheapflights users on 10/28. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:35 amPOA - SFO
1 stop26h 42mCopa Airlines
Fri 12/1212:36 amSFO - POA
1 stop18h 54mCopa Airlines
Deal found 10/28$1,052
This LATAM Airlines deal was found by Cheapflights users on 10/30. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:45 amPOA - SFO
2 stops21h 28mLATAM Airlines
Mon 12/156:00 amSFO - POA
2 stops27h 05mLATAM Airlines
Deal found 10/30$1,109
This LATAM Airlines deal was found by Cheapflights users on 10/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:50 pmPOA - SFO
2 stops34h 48mLATAM Airlines
Sat 12/1310:30 pmSFO - POA
2 stops27h 00mLATAM Airlines
Deal found 10/28$1,159
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 11/201:50 pmPOA - SFO
2 stops24h 55mUnited Airlines
Sun 12/1412:43 amSFO - POA
2 stops32h 57mUnited Airlines
Deal found 10/30$1,166
This LATAM Airlines deal was found by Cheapflights users on 10/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 pmPOA - SFO
2 stops23h 30mLATAM Airlines
Sat 12/1310:30 pmSFO - POA
2 stops27h 00mLATAM Airlines
Deal found 10/28$1,264
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 12/143:30 pmPOA - SFO
2 stops35h 19mUnited Airlines
Sun 12/2111:06 pmSFO - POA
2 stops54h 44mUnited Airlines
Deal found 10/29$1,418
This LATAM Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/137:45 amPOA - SFO
2 stops31h 45mLATAM Airlines
Sat 12/2011:45 pmSFO - POA
2 stops36h 15mLATAM Airlines
Deal found 10/29$1,484
This 123 Milhas deal was found by Cheapflights users on 10/30. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:50 amPOA - SFO
2 stops25h 48mAzul
Mon 12/159:44 pmSFO - POA
2 stops21h 31mAzul
Deal found 10/30$1,600
This Arangrant deal was found by Cheapflights users on 10/29. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/51:35 amPOA - SFO
1 stop26h 42mCopa Airlines
Sat 2/712:42 amSFO - POA
1 stop18h 43mCopa Airlines
Deal found 10/29$2,536

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to San Francisco 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 October 30, 2025.
Use the filters below to find and compare flights from Porto Alegre to San Francisco that are best for you.

Fly from

Porto Alegre

Fly to

San Francisco

Route

Depart

Return

Price

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 2/2

6:10 pm-5:19 pm

2 stops28h 09m

San Francisco

Sun 2/8

12:43 am-2:35 pm

2 stops32h 52m

$904

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 3/5

5:55 pm-11:15 am

2 stops22h 20m

San Francisco

Sat 3/14

8:16 am-11:00 am

2 stops22h 44m

$925

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 1/19

6:25 pm-4:01 pm

2 stops26h 36m

San Francisco

Sun 2/15

6:25 am-11:00 am

2 stops23h 35m

$1,004

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Wed 11/26

1:35 am-11:17 pm

1 stop26h 42m

San Francisco

Fri 12/12

12:36 am-12:30 am

1 stop18h 54m

$1,052

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 11/27

2:50 pm-8:38 pm

2 stops34h 48m

San Francisco

Sat 12/13

10:30 pm-6:30 am

2 stops27h 00m

$1,159

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 11/20

1:50 pm-9:45 am

2 stops24h 55m

San Francisco

Sun 12/14

12:43 am-2:40 pm

2 stops32h 57m

$1,166

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Fri 11/28

6:00 pm-12:30 pm

2 stops23h 30m

San Francisco

Sat 12/13

10:30 pm-6:30 am

2 stops27h 00m

$1,264

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Sun 2/1

1:30 am-11:20 pm

1 stop26h 50m

San Francisco

Sun 2/8

12:42 am-12:25 am

1 stop18h 43m

$1,276

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 2/17

1:30 am-11:20 pm

1 stop26h 50m

San Francisco

Sat 2/21

12:42 am-12:25 am

1 stop18h 43m

$1,383

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Sun 12/14

3:30 pm-9:49 pm

2 stops35h 19m

San Francisco

Sun 12/21

11:06 pm-10:50 am

2 stops54h 44m

$1,418

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 14 results
1
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Compare providers for flights from Porto Alegre to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto Alegre to San Francisco in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Porto Alegre to San Francisco?

Currently, May is the cheapest month in which you can book a flight from Porto Alegre to San Francisco (average of $323). Flying from Porto Alegre to San Francisco in July is currently the most expensive (average of $837). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to San Francisco. 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 Porto Alegre to San Francisco?

    There are many flights that can get you from Porto Alegre to San Francisco in 22h 20m. Fly via United Airlines, American Airlines, or Copa Airlines to get the fastest option. Porto Alegre and San Francisco are separated by a distance of 6547 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

    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 Francisco.

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

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

  • What is the cheapest month to book a flight from Porto Alegre to San Francisco?

    Currently, May is the cheapest month in which you can book a flight from Porto Alegre to San Francisco (average of $323). Flying from Porto Alegre to San Francisco in July is currently the most expensive (average of $837). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
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Vallejo
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Lodi

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