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$808+ Cheap flights from Porto Alegre (POA) to San Francisco (SFO)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SFO
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
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 January 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$808
(Air Canada)

Popular in

January

Cheapest in

April

Average price

$1,886
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. 23% potential increase in price ($296 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($86 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 6, 2026.

This Air Canada deal was found by Cheapflights users on 1/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:25 pmPOA - SFO
2 stops34h 57mAir Canada
Wed 3/258:30 amSFO - POA
2 stops28h 00mAir Canada
Deal found 1/6$808
This Air Canada deal was found by Cheapflights users on 1/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:25 pmPOA - SFO
2 stops34h 57mAir Canada
Mon 4/274:15 pmSFO - POA
2 stops42h 05mAir Canada
Deal found 1/5$809
This United Airlines deal was found by Cheapflights users on 1/5. 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 9/145:10 pmPOA - SFO
2 stops24h 01mUnited Airlines
Fri 9/255:20 amSFO - POA
2 stops29h 15mUnited Airlines
Deal found 1/5$843
This LATAM Airlines deal was found by Cheapflights users on 1/5. 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.
Wed 9/162:20 pmPOA - SFO
2 stops24h 20mLATAM Airlines
Wed 9/2311:30 amSFO - POA
2 stops26h 45mLATAM Airlines
Deal found 1/5$845
This LATAM Airlines deal was found by Cheapflights users on 1/5. 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.
Sun 9/137:05 pmPOA - SFO
2 stops24h 06mLATAM Airlines
Tue 9/2210:00 pmSFO - POA
2 stops22h 40mLATAM Airlines
Deal found 1/5$849
This LATAM Airlines deal was found by Cheapflights users on 1/6. 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 1/275:55 pmPOA - SFO
2 stops21h 09mLATAM Airlines
Tue 2/36:00 amSFO - POA
2 stops30h 20mLATAM Airlines
Deal found 1/6$852
This Copa Airlines deal was found by Cheapflights users on 1/5. 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.
Fri 5/81:20 amPOA - SFO
1 stop26h 20mCopa Airlines
Fri 5/151:12 amSFO - POA
1 stop19h 08mCopa Airlines
Deal found 1/5$869
This 123 Milhas deal was found by Cheapflights users on 1/5. 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.
Sun 2/85:50 pmPOA - SFO
2 stops26h 18mLATAM Airlines
Tue 2/1710:00 pmSFO - POA
2 stops27h 30mLATAM Airlines
Deal found 1/5$872
This Copa Airlines deal was found by Cheapflights users on 1/5. 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 2/181:30 amPOA - SFO
1 stop26h 50mCopa Airlines
Wed 2/2512:42 amSFO - POA
1 stop18h 43mCopa Airlines
Deal found 1/5$882
This United Airlines deal was found by Cheapflights users on 1/5. 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 2/83:30 pmPOA - SFO
2 stops28h 26mUnited Airlines
Sun 2/1512:43 amSFO - POA
2 stops36h 32mUnited Airlines
Deal found 1/5$907
This United Airlines deal was found by Cheapflights users on 1/5. 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.
Fri 9/115:10 pmPOA - SFO
2 stops28h 03mUnited Airlines
Mon 9/217:00 amSFO - POA
2 stops27h 05mUnited Airlines
Deal found 1/5$908
This Kiwi.com deal was found by Cheapflights users on 1/5. 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.
Wed 2/181:30 amPOA - SFO
1 stop26h 50mMultiple Airlines
Thu 2/266:05 amSFO - POA
2 stops23h 55mMultiple Airlines
Deal found 1/5$922

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 January 6, 2026.
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 3/2

5:10 pm-9:22 pm

2 stops33h 12m

San Francisco

Mon 4/27

2:30 pm-2:20 pm

2 stops43h 50m

$808

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 3/2

5:10 pm-9:22 pm

2 stops33h 12m

San Francisco

Mon 3/30

4:15 pm-4:20 pm

2 stops44h 05m

$809

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 3/2

5:10 pm-9:22 pm

2 stops33h 12m

San Francisco

Wed 3/25

8:30 am-2:50 pm

2 stops26h 20m

$809

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 2/19

7:45 am-10:36 am

2 stops31h 51m

San Francisco

Thu 2/26

6:05 am-5:00 pm

2 stops29h 55m

$843

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 1/27

10:05 am-10:04 am

2 stops28h 59m

San Francisco

Tue 2/3

10:00 pm-6:30 am

2 stops27h 30m

$845

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 5/7

1:20 am-11:40 pm

1 stop26h 20m

San Francisco

Sat 5/16

1:12 am-12:20 am

1 stop19h 08m

$849

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 2/19

6:00 pm-3:00 pm

2 stops26h 00m

San Francisco

Thu 2/26

1:20 pm-5:45 pm

2 stops23h 25m

$849

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Sun 3/1

1:30 am-11:16 pm

1 stop26h 46m

San Francisco

Sun 4/26

1:23 am-12:20 am

1 stop18h 57m

$849

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Fri 3/20

6:00 pm-3:03 pm

2 stops25h 03m

San Francisco

Mon 3/30

9:25 am-9:05 pm

2 stops31h 40m

$849

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Fri 2/20

5:55 pm-1:37 pm

2 stops24h 42m

San Francisco

Fri 2/27

7:25 am-10:35 am

2 stops22h 10m

$852

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 11 results
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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 January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 January is currently the most expensive (average of $1,793). 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 31h 51m. Fly via Air Canada or LATAM 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 January is currently the most expensive (average of $1,793). 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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Manteca
Turlock
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Foster City
Union City
Davis

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