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Cheap flights from San Francisco to Porto Alegre from $771

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Porto Alegre departing on 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from San Francisco to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:00 am - 10:35 am
SFO
-
POA
22h 35m
2 stops
American Airlines Logo
6:25 pm - 2:59 pm
POA
-
SFO
24h 34m
2 stops
$771American Airlines
Fri, Aug 28 - Thu, Sep 24
Copa Airlines Logo
8:06 pm - 12:20 am
SFO
-
POA
24h 14m
1 stop
Copa Airlines Logo
1:20 am - 11:40 pm
POA
-
SFO
26h 20m
1 stop
$789Copa Airlines
Sun, May 24 - Sat, Jun 6
LATAM Airlines Logo
11:57 pm - 6:15 am
SFO
-
POA
26h 18m
2 stops
LATAM Airlines Logo
7:05 pm - 10:53 am
POA
-
SFO
19h 48m
2 stops
$831LATAM Airlines
Tue, May 5 - Sun, May 31
LATAM Airlines Logo
11:57 pm - 6:15 am
SFO
-
POA
26h 18m
2 stops
LATAM Airlines Logo
5:50 pm - 10:53 am
POA
-
SFO
21h 03m
2 stops
$834LATAM Airlines
Tue, May 5 - Tue, Jun 2
Delta Logo
8:00 am - 11:15 am
SFO
-
POA
23h 15m
2 stops
Delta Logo
7:05 pm - 1:36 pm
POA
-
SFO
22h 31m
2 stops
$838Delta
Fri, May 1 - Sun, May 31
Delta Logo
8:00 am - 11:15 am
SFO
-
POA
23h 15m
2 stops
Delta Logo
5:50 pm - 7:20 pm
POA
-
SFO
29h 30m
2 stops
$840Delta
Fri, May 1 - Tue, Jun 2
United Airlines Logo
4:55 pm - 2:20 pm
SFO
-
POA
41h 25m
2 stops
United Airlines Logo
2:05 pm - 12:15 am
POA
-
SFO
38h 10m
2 stops
$843United Airlines
Sat, May 2 - Thu, May 28
United Airlines Logo
4:55 pm - 2:20 pm
SFO
-
POA
41h 25m
2 stops
United Airlines Logo
3:25 pm - 12:15 am
POA
-
SFO
36h 50m
2 stops
$859United Airlines
Sat, May 2 - Mon, Jun 1
United Airlines Logo
12:45 am - 2:05 pm
SFO
-
POA
33h 20m
2 stops
United Airlines Logo
3:25 pm - 12:15 am
POA
-
SFO
36h 50m
2 stops
$874United Airlines
Sun, May 3 - Mon, Jun 1
United Airlines Logo
11:05 pm - 3:15 pm
SFO
-
POA
36h 10m
2 stops
United Airlines Logo
3:25 pm - 12:15 am
POA
-
SFO
36h 50m
2 stops
$876United Airlines
Tue, May 5 - Mon, Jun 1

LATAM Airlines flights from San Francisco to Porto Alegre

Our best LATAM Airlines deals on San Francisco to Porto Alegre flight tickets
LATAM Airlines
May 5
SFO11:57 pmSan Francisco
26h 18m
2 stops
POA6:15 amPorto Alegre Salgado Filho
May 31
POA7:05 pmPorto Alegre Salgado Filho
19h 48m
2 stops
SFO10:53 amSan Francisco
$831
LATAM Airlines
May 5
SFO11:57 pmSan Francisco
26h 18m
2 stops
POA6:15 amPorto Alegre Salgado Filho
May 28
POA5:50 pmPorto Alegre Salgado Filho
23h 46m
2 stops
SFO1:36 pmSan Francisco
$834
LATAM Airlines
May 5
SFO6:00 amSan Francisco
25h 35m
2 stops
POA11:35 amPorto Alegre Salgado Filho
Jun 1
POA7:25 amPorto Alegre Salgado Filho
21h 21m
2 stops
SFO12:46 amSan Francisco
$893

Delta flights from San Francisco to Porto Alegre

Our best Delta deals on San Francisco to Porto Alegre flight tickets
Delta
May 1
SFO8:00 amSan Francisco
23h 15m
2 stops
POA11:15 amPorto Alegre Salgado Filho
May 31
POA7:05 pmPorto Alegre Salgado Filho
22h 31m
2 stops
SFO1:36 pmSan Francisco
$838
Delta
May 1
SFO8:00 amSan Francisco
23h 15m
2 stops
POA11:15 amPorto Alegre Salgado Filho
Jun 2
POA5:50 pmPorto Alegre Salgado Filho
29h 30m
2 stops
SFO7:20 pmSan Francisco
$840
Delta
May 5
SFO11:57 pmSan Francisco
26h 18m
2 stops
POA6:15 amPorto Alegre Salgado Filho
May 31
POA7:05 pmPorto Alegre Salgado Filho
22h 31m
2 stops
SFO1:36 pmSan Francisco
$881

momondo 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, momondo users made 832,500 searches. Data last updated March 19, 2026.
Use the filters below to find and compare flights from San Francisco to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Fri 8/28

8:00 am-10:35 am

2 stops22h 35m

Porto Alegre Salgado Filho

Thu 9/24

6:25 pm-2:59 pm

2 stops24h 34m

$771

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sun 5/24

8:06 pm-12:20 am

1 stop24h 14m

Porto Alegre Salgado Filho

Sat 6/6

1:20 am-11:40 pm

1 stop26h 20m

$789

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 5/5

11:57 pm-6:15 am

2 stops26h 18m

Porto Alegre Salgado Filho

Sun 5/31

7:05 pm-10:53 am

2 stops19h 48m

$831

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 5/5

11:57 pm-6:15 am

2 stops26h 18m

Porto Alegre Salgado Filho

Tue 6/2

5:50 pm-10:53 am

2 stops21h 03m

$834
Quickest round-trip

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Fri 5/1

8:00 am-11:15 am

2 stops23h 15m

Porto Alegre Salgado Filho

Sun 5/31

7:05 pm-1:36 pm

2 stops22h 31m

$838

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Fri 5/1

8:00 am-11:15 am

2 stops23h 15m

Porto Alegre Salgado Filho

Tue 6/2

5:50 pm-7:20 pm

2 stops29h 30m

$840

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sat 5/2

4:55 pm-2:20 pm

2 stops41h 25m

Porto Alegre Salgado Filho

Thu 5/28

2:05 pm-12:15 am

2 stops38h 10m

$843

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sat 5/2

4:55 pm-2:20 pm

2 stops41h 25m

Porto Alegre Salgado Filho

Mon 6/1

3:25 pm-12:15 am

2 stops36h 50m

$859

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sun 5/3

12:45 am-2:05 pm

2 stops33h 20m

Porto Alegre Salgado Filho

Mon 6/1

3:25 pm-12:15 am

2 stops36h 50m

$874

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 5/5

11:05 pm-3:15 pm

2 stops36h 10m

Porto Alegre Salgado Filho

Mon 6/1

3:25 pm-12:15 am

2 stops36h 50m

$876

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto Alegre from

How to get the cheapest flight ticket from San Francisco to Porto Alegre

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on San Francisco to Porto Alegre flights?

You could potentially save up to 43% on your flight if you consider stops on a San Francisco to Porto Alegre flight.

When to book flights from San Francisco to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Porto Alegre (SFO to POA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Porto Alegre

Fastest flight time

27h 40m

Direct flights

None
The fastest flight from San Francisco to Porto Alegre takes 27h 40m
There are no direct flights from San Francisco to Porto Alegre. There are no popular flight routes from San Francisco to Porto Alegre.
Search flight deals

  • How far is San Francisco to Porto Alegre Salgado Filho by plane?

    The straight-line distance from San Francisco to Porto Alegre Salgado Filho is 6555.1 mi. By plane, this route typically takes 27h 40m.

  • When did momondo last update prices for flights from San Francisco Airport to Porto Alegre Salgado Filho Airport?

    Prices for flights from San Francisco Airport to Porto Alegre Salgado Filho Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Francisco Airport to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from San Francisco Airport to Porto Alegre Salgado Filho Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The travel and health documents required for your trip to Porto Alegre Salgado Filho Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Alegre Salgado Filho Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from San Francisco to Porto Alegre?

Best airlines flying from San Francisco to Porto Alegre

Compare and see reviews for airlines that fly from San Francisco to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $345Free CancellationRating
7.5
1,571 reviews
Search Copa Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Porto Alegre?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Porto Alegre. momondo saves you time and could save you money on your trip.

Can I find flights from San Francisco to Porto Alegre with flexible booking policies on momondo?

Flights from San Francisco to Porto Alegre with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco to Porto Alegre?

momondo helps you find the best flight between San Francisco and Porto Alegre by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to Porto Alegre right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto Alegre, momondo offers a useful price alert feature which will track prices for flights to Porto Alegre from San Francisco and alert you when they change.

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