HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$415+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SFO
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto Alegre to San Francisco 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 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 December 4, 2025.

This 123 Milhas deal was found by Cheapflights users on 12/4. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 pmPOA - SFO
2 stops20h 44mLATAM Airlines
Tue 1/1311:46 amSFO - POA
2 stops20h 29mLATAM Airlines
Deal found 12/4$816
This Copa Airlines deal was found by Cheapflights users on 12/4. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:35 amPOA - SFO
1 stop26h 42mCopa Airlines
Mon 1/1212:42 amSFO - POA
1 stop18h 48mCopa Airlines
Deal found 12/4$1,052
This LATAM Airlines deal was found by Cheapflights users on 12/4. 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.
Wed 12/106:00 pmPOA - SFO
2 stops22h 29mLATAM Airlines
Sat 12/276:00 amSFO - POA
2 stops26h 15mLATAM Airlines
Deal found 12/4$1,223
This Copa Airlines deal was found by Cheapflights users on 12/4. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:35 amPOA - SFO
1 stop26h 42mCopa Airlines
Fri 12/2612:36 amSFO - POA
1 stop18h 54mCopa Airlines
Deal found 12/4$1,281

Find 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$803
(Expedia)

One-way from

$415
(KAYAK)

Popular in

December

Cheapest in

April

Average price

$1,112
Provider with most accurate pricing for Porto Alegre Salgado Filho-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-San Francisco flights.
Search Deals
From Porto Alegre Salgado Filho to San Francisco
Search Deals
One-way flight from Porto Alegre Salgado Filho to San Francisco
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 4, 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 3/2

5:10 pm-9:22 pm

2 stops33h 12m

San Francisco

Mon 4/27

4:15 pm-2:20 pm

2 stops42h 05m

$802

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 3/2

3:25 pm-9:22 pm

2 stops34h 57m

San Francisco

Wed 3/25

8:30 am-6:20 pm

2 stops29h 50m

$802

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 3/2

3:25 pm-9:22 pm

2 stops34h 57m

San Francisco

Mon 3/30

2:30 pm-2:20 pm

2 stops43h 50m

$803

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 2/2

5:55 pm-7:09 pm

2 stops30h 14m

San Francisco

Sun 2/8

12:43 am-2:35 pm

2 stops32h 52m

$838

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 2/9

2:05 pm-10:23 am

2 stops25h 18m

San Francisco

Sat 2/21

11:59 pm-2:35 pm

2 stops33h 36m

$839

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 4/14

2:25 pm-9:35 pm

2 stops35h 10m

San Francisco

Thu 5/7

8:55 am-6:15 pm

2 stops29h 20m

$841

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 1/27

2:05 pm-5:43 pm

2 stops32h 38m

San Francisco

Tue 2/3

11:40 am-1:15 pm

2 stops20h 35m

$847

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 3/29

1:35 am-12:25 am

1 stop18h 50m

$848

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 12/16

5:55 pm-11:29 am

2 stops22h 34m

$415

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Wed 12/10

6:00 pm-9:44 am

2 stops20h 44m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 20 results
1
2

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 December.
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 $322). 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 33h 12m. Fly via Air Canada to get the fastest option. Porto Alegre and San Francisco are separated by a distance of 6547 mi.

  • 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 $322). 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
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Daly City
Redwood City
Vallejo
Hollister
Milpitas
Foster City
Union City
Davis
San Ramon
Burlingame

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.

Alternative routes for Porto Alegre to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Porto Alegre to Los Angeles flights
Porto Alegre to Las Vegas flights
Porto Alegre to San Diego flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.