SFO - POA

$323 Find Cheap Flights from San Francisco to Porto Alegre

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 9/3. 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.
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KAYAK searches 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Porto Alegre, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from San Francisco to Porto Alegre (SFO-POA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Porto Alegre that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from San Francisco to Porto Alegre

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Porto Alegre.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
8:38 am - 4:50 pmSFO-POA
28h 12m2 stops
United Airlines Logo
1:40 pm - 10:21 pmPOA-SFO
36h 41m3 stops
$644United Airlines
Find Deal
Sun, May 25 - Sun, Jun 8
United Airlines Logo
9:00 pm - 1:20 pmSFO-POA
36h 20m2 stops
United Airlines Logo
5:35 pm - 11:39 amPOA-SFO
22h 04m2 stops
$656United Airlines
Find Deal
Sat, May 24 - Mon, Jun 9
Copa Airlines Logo
1:37 am - 12:15 amSFO-POA
18h 38m1 stop
Copa Airlines Logo
1:23 am - 8:58 pmPOA-SFO
23h 35m1 stop
$659Copa Airlines
Find Deal
Wed, Jul 2 - Fri, Aug 1
Copa Airlines Logo
1:37 am - 8:45 amSFO-POA
27h 08m2 stops
Copa Airlines Logo
1:23 am - 8:58 pmPOA-SFO
23h 35m1 stop
$710Copa Airlines
Find Deal
Tue, Jun 24 - Tue, Jul 8
LATAM Airlines Logo
6:15 am - 5:00 pmSFO-POA
30h 45m2 stops
LATAM Airlines Logo
2:35 pm - 12:23 amPOA-SFO
37h 48m2 stops
$838LATAM Airlines
Find Deal
Sun, May 25 - Sat, Jun 7
 Logo
1:37 am - 12:15 amSFO-POA
18h 38m1 stop
 Logo
6:00 am - 11:40 pmPOA-SFO
21h 40m2 stops
Mon, May 26 - Tue, Jun 10
LATAM Airlines Logo
11:43 am - 7:50 pmSFO-POA
28h 07m2 stops
LATAM Airlines Logo
5:50 pm - 12:23 amPOA-SFO
34h 33m2 stops
$931LATAM Airlines
Find Deal
Thu, May 29 - Sat, Jun 7
 Logo
1:37 am - 12:15 amSFO-POA
18h 38m1 stop
 Logo
1:23 am - 7:31 amPOA-SFO
34h 08m2 stops
$1,009
Find Deal
Wed, May 28 - Sun, Jun 8
American Airlines Logo
7:35 am - 10:25 amSFO-POA
22h 50m2 stops
American Airlines Logo
6:35 pm - 12:55 pmPOA-SFO
22h 20m3 stops
$2,280American Airlines
Find Deal
Mon, May 19 - Tue, Jun 3
American Airlines Logo
8:00 am - 10:25 amSFO-POA
22h 25m3 stops
American Airlines Logo
5:20 pm - 11:13 amPOA-SFO
21h 53m2 stops
$2,616American Airlines
Find Deal
Thu, Jul 3 - Sat, Aug 2
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KAYAK's insights & trends for San Francisco to Porto Alegre flights

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 round-trip flights from San Francisco to Porto Alegre clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Francisco to Porto Alegre, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Porto Alegre, Thursday is the cheapest day to fly and Saturday is the most expensive.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$323
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 9% lower on average.
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 $323 for a one-way ticket and $644 for a round-trip.

  • 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?

    Star Alliance, and oneworld are the airline alliances operating flights between San Francisco and Porto Alegre, with Star Alliance 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 $841 and an overall rating of 7.5, Copa Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,543 and an overall rating of 7.2.

  • 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.

Top airlines flying 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.
7.5
Copa AirlinesOverall score based on 1414 reviews
7.4Comfort
7.8Boarding
6.8Entertainment
6.8Food
8.1Crew
Airline reviews

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

4.0 OkayAnonymous, Apr 2025LAX - PTY
Read more Copa Airlines reviews

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

It was reasonably comfortable trip considering its duration (7 hours). Crew was very good and friendly, seats very more comfortable than other planes. Only negative comment would be that the bathroom light did not get its full brightness 🙃

It was good, plane is a bit older so seats are somewhat flat

Great from check in all the way to the end. Very happy with Copa

Well the airline was fine. The only thing is I was charged for a checked in luggage. But when I reserved the ticket it showed a check in bag allowed. Who can I get in contact with for reimbursement.? The airline said I had to speak to whoever I booked ticket with.

Friendly flight team and seamless travel from one stop to next.

I loved my experience. Very safe, Very informative and very friendly.

At JFK the Security line was extremely long and few checkpoints open.

Check in person said there would be lunch. We were first class passengers and lunch was chips.

Horrible food. No wine or any other alcohol is served on the flight. Water is not served often and they refused when I asked for water in two cups. On the other hand, both going and coming back flights were on time.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

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

Information on your arrival and departure airports

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