$385+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — POA
Jun 2 — Jun 91
1 adult, Economy
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Find cheap flights from San Francisco to Porto Alegre 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 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 May 28, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $695 (American Airlines) |
One-way from | $385 (United Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $910 |
Find flight deals from San Francisco to Porto Alegre
Cheapest flights from San Francisco to Porto AlegreExplore 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 May 28, 2025.
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 May 28, 2025.
This American Airlines deal was found by Cheapflights users on 5/27. 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.
Tue 8/1212:13 pmSFO - POA
2 stops21h 12mAmerican Airlines
Tue 8/266:35 pmPOA - SFO
2 stops28h 25mAmerican Airlines
Deal found 5/27![American Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 5/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2812:55 pmSFO - POA
2 stops23h 55mUnited Airlines
Sat 5/316:35 pmPOA - SFO
2 stops33h 24mUnited Airlines
Deal found 5/28![United Airlines logo]()
$725
This Copa Airlines deal was found by Cheapflights users on 5/27. 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.
Mon 8/111:28 amSFO - POA
2 stops27h 17mCopa Airlines
Mon 8/251:23 amPOA - SFO
1 stop26h 17mCopa Airlines
Deal found 5/27![Copa Airlines logo]()
$753
This Mytrip deal was found by Cheapflights users on 5/27. 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.
Mon 8/1112:05 amSFO - POA
3 stops27h 35mMultiple Airlines
Tue 8/263:30 pmPOA - SFO
3 stops35h 15mMultiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$832
This LATAM Airlines deal was found by Cheapflights users on 5/27. 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 7/38:24 amSFO - POA
2 stops31h 26mLATAM Airlines
Sat 8/22:35 pmPOA - SFO
2 stops23h 45mLATAM Airlines
Deal found 5/27![LATAM Airlines logo]()
$1,014
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 May 28, 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
Tue 8/12
12:13 pm-1:25 pm
2 stops21h 12m
Porto Alegre Salgado Filho
Tue 8/26
6:35 pm-7:00 pm
2 stops28h 25m
$695
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Mon 8/11
1:28 am-8:45 am
2 stops27h 17m
Porto Alegre Salgado Filho
Mon 8/25
1:23 am-11:40 pm
1 stop26h 17m
$753
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Mon 8/11
12:05 am-7:40 am
3 stops27h 35m
Porto Alegre Salgado Filho
Tue 8/26
3:30 pm-10:45 pm
3 stops35h 15m
$832
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Thu 7/3
8:24 am-7:50 pm
2 stops31h 26m
Porto Alegre Salgado Filho
Sat 8/2
2:35 pm-10:20 am
2 stops23h 45m
$1,014
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Wed 7/2
12:20 am-1:20 pm
2 stops33h 00m
Porto Alegre Salgado Filho
Sat 8/2
4:55 pm-12:57 am
2 stops36h 02m
$1,024
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Tue 8/5
11:59 pm-4:50 pm
2 stops36h 51m
$385
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Fri 8/1
1:28 am-7:45 am
2 stops26h 17m
$469
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Mon 7/28
5:55 am-5:00 pm
2 stops31h 05m
$475
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Tue 7/29
12:13 pm-1:25 pm
2 stops21h 12m
$628
San FranciscoPorto Alegre
SFO - POA
SFOPOA
San Francisco
Sat 6/7
12:05 am-12:15 am
2 stops20h 10m
$1,933
Showing 1-10 of 11 results
Compare providers for flights from San Francisco to Porto Alegre
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 San Francisco to Porto Alegre in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Porto Alegre flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Francisco-Porto Alegre flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Francisco-Porto Alegre flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Porto Alegre flights, Cheapflights users trust AranGrant the most. AranGrant 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 San Francisco-Porto Alegre 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 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 May 28, 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.
Rainfall in Porto Alegre by month
Plan your trip to Porto Alegre by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Porto Alegre ranges from 2.8 - 5.1 inches per month. September is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Porto Alegre when rainfall is around 2.8 in.
Temperature in Porto Alegre by month
Plan your trip to Porto Alegre by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Porto Alegre, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 55.4 F).
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 May 28, 2025.
Overall
7.5
Entertainment
7.0
Comfort
7.4
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2025
MCO - BOG
Overall
7.5
Entertainment
7.0
Comfort
7.4
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2025
MCO - BOG
Overall
7.5
Entertainment
7.0
Comfort
7.4
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2025
MCO - BOG
Overall
7.5
Entertainment
7.0
Comfort
7.4
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2025
MCO - BOG
Overall
7.5
Entertainment
7.0
Comfort
7.4
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2025
MCO - BOG
Overall
7.5
Entertainment
7.0
Comfort
7.4
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2025
MCO - BOG
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.
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Alternative routes for San Francisco to Porto Alegre
See prices for flight routes from nearby airports that may be better suited for you.
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 May 28, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$345 | Average$790 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$578 | Average$1,543 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$643 | Average$694 | FlexibilityNo cancel fee | On-time69% |