Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SFO - POA

Find cheap flights from San Francisco to Porto Alegre from $376

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Porto Alegre departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/3
Mon 6/10

Search hundreds of travel sites at once for deals on flights to Porto Alegre

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Porto Alegre.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Porto Alegre.
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Flights from San Francisco to Porto Alegre - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Porto Alegre to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Francisco to Porto Alegre?

The average price of all flights from San Francisco to Porto Alegre clicked on KAYAK for each day over the last 12 months.
When flying from San Francisco to Porto Alegre, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to San Francisco, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

What is the cheapest month to fly from San Francisco to Porto Alegre?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Porto Alegre, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Francisco to Porto Alegre is September, where tickets cost $588 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $2,130 and $1,284 respectively.

How far in advance should I book a flight from San Francisco to Porto Alegre?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to Porto Alegre, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Francisco to Porto Alegre, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 29 days before departure.

Good to know

Low season

September

High season

December

Cheapest flight

$376
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 119% increase in price.
Flight from San Francisco to Porto Alegre

When to book flights from San Francisco to Porto Alegre

Are your dates flexible? Find out the best times to travel from San Francisco to Porto Alegre based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Porto Alegre

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

    In the last 3 days, the lowest price for a flight from San Francisco to Porto Alegre was $376 for a one-way ticket.

  • Do I need a passport to fly between San Francisco and Porto Alegre?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in Porto Alegre.

  • Which airports will I be using when flying from San Francisco to Porto Alegre?

    When flying out of San Francisco you will be using San Francisco. You will be landing at Porto Alegre, also known as Porto Alegre Salgado Filho.

  • Which aircraft models fly most regularly from San Francisco to Porto Alegre?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Porto Alegre?

    oneworld, and Star Alliance are the airline alliances operating flights between San Francisco and Porto Alegre, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from San Francisco to Porto Alegre, Copa Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to Porto Alegre are Copa Airlines and American Airlines. With an average price for the route of $1,174 and an overall rating of 7.8, Copa Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,815 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from San Francisco to Porto Alegre?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Porto Alegre.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Porto Alegre?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Porto Alegre?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and POA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Porto Alegre?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from San Francisco to Porto Alegre

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Porto Alegre. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Porto Alegre? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
AzulOverall score based on 970 reviews
8.1Boarding
8.0Comfort
7.3Food
7.7Entertainment
8.7Crew
Airline reviews

Tight and not so comfortable business class seats . Crew below average. Very formal, no smiles, and kind of confused when serving meals. AZUL used to be much better on all above subjects. That's is what monopoly does to its customers.

6.0 GoodIsrael, Apr 2024VCP - FLL
Read more about Azul reviews

Tight and not so comfortable business class seats . Crew below average. Very formal, no smiles, and kind of confused when serving meals. AZUL used to be much better on all above subjects. That's is what monopoly does to its customers.

When you buy your ticket, there is a message for a free cabin luggage and a bag. While boarding, they push you to dispatch you hand luggage. When you enter in the plane, you realize that the place to accommodate the hand luggage is empty. In the arriving, you take a long time waiting for your hand luggage which should fly in the cabin.

No entertainment available on this flight. Only crackers and juice were served too.

Pontualidade continua sendo o ponto forte da Azul. Quando ela não desmarca o vôo, é claro. Na ida foi tudo bonitinho: tv, wi-fi... Na volta eqtos não funcionavam. Importante é chegar bem.

Por cinco minutos (55 min antes da decolagem) fui impedido de entregar a bagagem pois o check-in estava "finalizado ". Tive que ir de Viracopos para Congonhas. Após embarcar aguardamos por mais de uma hora de atraso para decolar, ao inves de chegar às 9h, cheguei às 16h no RJ, perdendo o evento que era às 15h.

Não teve viagem alguma, a 123 milhas faliu e eu desisti da viagem.

Um vôo de mais de 4 horas e não tem nada de entretenimento

I was surprised that someone of the crew can speak French, my mother tongue

All the service was very good. The only thing was that the flight was delayed. We didn't miss the connection, but other passangers were about to.

We only had 1hr connecting in Ft Lauderdale. Kayak should not have allowed this short a connection time, as FLL requires a change of terminal (exit the airport and get on a bus), so we missed our connecting flight home to San Diego.

Copa performed as expected for the amount of money I was willing to spend for the flight; it wasn’t exceptional but it was not bad in any way either. The crew was good; friendly and straightforward. The food was airplane food, so no expectations there and the entertainment was lacking but that was my fault for owning an IPhone with a charging port that’s not compatible with the rest of the world. I’d fly Copa again.

Left my bags in origin city on a business class ticket , spent about 2-3 days in the same clothes plus the flight .

the planes are not modern there are no phone chargers

As usual, the flight with normal legroom was not very comfortable, but the second flight was much better because we had paid for extra legroom. It was very nice to check our bags without an extra fee.

LOCKED MY BAG WITHOUT CONSENT. Had to have my zippers cut upon arrival in Costa Rica.

Pros: "The seats in economy were confortable. The best thing was Copa gave us seats in the second line and my family traveled together."
Cons: "Coffe service could better the experience"
Pros: "The crew was very interested on help and attentive with the passengers. But the seat wasn't comfortable. The design of the cushion is not the best to be seating"
Pros: "You were on time, that is the most important thing in a fly"
Cons: "You could improve your entertainment, you are not a cheap company"
Pros: "That there was seltzer"
Cons: "The management of preparing the flight and plane so that it was ready for the trip!!"
Pros: "Copa was convenient and easy. Very easy boarding process and I appreciated the day flight."
Cons: "This is a business class that is equivalent to a US carrier domestic first class. Good seats, not lay flat but wide on my 737-800. The food and service emulated say American Airlines Domestic 1C as well. Everything was just good enough, and much cheaper that international business on the majors."

Some entertainment and food/snack service would have been nice

All the pessengers should be wait in a line útil the creo and piloto are arrived.

Planes seat could be bigger very uncomfortable for tall humans.

1 hour waiting for suitcases to come out traveling in business class and food in business class is a sandwich? Avoid Aeromexico .

No space reserved for anyone who didn’t have underseat in front of them. Made it inconvenient to get the backs secured. No inflight entertainment in the 190. Bring your own! Food was excellent and we were surprised to get a full breakfast.

Cons: "left Houston more than 2 hours later, arrive in Mexico over 2 am"
Cons: "El problema es que nunca pude cambiar mi vuelo y con ustedes fue imposible comunicarse para que me auxiliaran. Muy mal por ustedes no por la línea."
Pros: "The crew was amazing , the site is ok"
Cons: "I love Aeroméxico , thanks for de service and the food."
Pros: "Plenty a space between seats. Ver confortable seats and small entertainment screens!"
Cons: "Better selection of movie?"
Cons: "Way too much people... We're in a pandemic and the plane was Full. Unacceptable."

Everything was as you would expect in coach - fine. Flight was close to on time.

No air in the middle rows. Had a hard time breathing. Was dying of heat.

Horrific checkin procedure with neither Delta nor Latam figuring out how to check me in. 4 hrs on customer support with both and both airlines pointing to each other who should do checking. I was not checked in until morning of flight, which for international flight is concerning.

It was a good experience, the flight was a little too long & the food was ok

the flight from Boston to Curitiba was on time actually 30 minutes earlier. latam was not able to unload the luggage for custom checkup in Sao Paulo ii took two and half hours . i missed the flight to Curitiba spend the night in hotel and then flying in the morning to Curitiba

Tough flight with turbulence… I was told by a fellow passenger that it is common. Nonetheless, very stressful. Cordial staff.

Very unprofessional staff in the checking and boarding. There was no space for my carry-on bag, which is understandable for a full flight. However, the rudeness in answering my questions about my bag were unnecessary. Shaming and threatening a passenger to be left behind was something I had never experienced (I am 57 years old and a Skymiles member) before. At a minimum, the boarding staff (Krystal Mejia and her manager Dee) should undergo further training on cultural sensitivity and professional skills on speaking with passengers. Krystal, just because I have dark hair and “look Latina” does not mean I can speak Spanish. Your assumption and threatening words until the very ending of my boarding (door of the airplane) were not only unnecessary and stressful but something that a passenger should not experience before boarding.

The flight was overbooked and the solution gave was unrespctful. I arrived 4 hour in advance in the airport and only after 2hous was possible suggest a different ticket with another company LATAM, I have accepted, but when I was checking in at LATAM the tickets was issued without luggage, what it is absurd since I have bought my tickets including it since the beginning. Due to the timing for the next flight was not possible return to Avianca to claim due to the distance between Both companies Avianca and Latam since were located in different terminals. I have insiste to the crew of Latam to call Avianca to solve it, but they could help they were alleging that only paying a thousand pesos Mexicans ($1,000 MXN) to dispatch my luggage would be accepted and I have no money at all. So I had to beg for others passagens, it was an humiliating to exchange luggage with who was platinum in order to return back the luggage in the connection airport in Brazil (GRU). I have no clue that a judicial process would be taken from my side due the lots of stress in sequence by the non professional treatment with a passenger that was just following everything said by Avianca.. Long hours of waiting until next flight and only arrive at final destine in 6hs later..

The flight from PDX to New York was cancelled, and I got rebooked one day later. Because of this I missed a meeting at my final destination, EZE. I now need to stay longer in Argentina, and was told the tariff difference was $780 plus $150 penalty! I am not using my return ticket, and have purchased a one way ticket EZE-PDX for $606 with another airline. SHAMEFUL

Cons: "The flight was full and all seats were taken. It means it was impossible to maintain the required and necessary social distancing."

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Book cheap flights from San Francisco to Porto Alegre

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Porto Alegre found on KAYAK in the last 72 hours.
5/20Mon
2 stopsGOL
23h 34mSFO-POA
$376
5/19Sun
2 stopsAmerican Airlines
30h 21mSFO-POA
$665
5/19Sun
1 stopCopa Airlines
18h 52mSFO-POA
$849

Search by stops

Search by airline

Search by price

San Francisco - Porto Alegre Flights

Departure:

San Francisco (SFO)United States

Destination:

Porto Alegre (POA)Brazil

Return flight deals:

Porto Alegre - San Francisco

Cabin classes: