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Cheap flights from Porto Alegre to San Francisco from $397

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto Alegre to San Francisco departing on 4/23. 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
0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Find the cheapest flights from Porto Alegre to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:25 pm - 7:00 pm
POA
-
SFO
28h 35m
2 stops
American Airlines Logo
1:59 pm - 3:35 pm
SFO
-
POA
21h 36m
2 stops
$807American Airlines
Mon, Aug 17 - Wed, Aug 26
American Airlines Logo
6:25 pm - 7:00 pm
POA
-
SFO
28h 35m
2 stops
American Airlines Logo
1:59 pm - 3:35 pm
SFO
-
POA
21h 36m
2 stops
$811American Airlines
Mon, Aug 17 - Wed, Aug 26
American Airlines Logo
6:25 pm - 7:00 pm
POA
-
SFO
28h 35m
2 stops
American Airlines Logo
8:00 am - 10:40 am
SFO
-
POA
22h 40m
2 stops
$814American Airlines
Mon, Aug 17 - Wed, Aug 26
American Airlines Logo
6:25 pm - 7:00 pm
POA
-
SFO
28h 35m
2 stops
American Airlines Logo
10:26 am - 10:40 am
SFO
-
POA
20h 14m
2 stops
$851American Airlines
Mon, Aug 17 - Wed, Aug 26
LATAM Airlines Logo
7:05 pm - 3:11 pm
POA
-
SFO
24h 06m
2 stops
LATAM Airlines Logo
7:30 am - 11:15 am
SFO
-
POA
23h 45m
2 stops
$865LATAM Airlines
Mon, Aug 17 - Wed, Aug 26
Copa Airlines Logo
1:20 am - 6:14 pm
POA
-
SFO
20h 54m
1 stop
Copa Airlines Logo
8:06 pm - 12:20 am
SFO
-
POA
24h 14m
1 stop
$870Copa Airlines
Fri, May 22 - Sat, May 30
American Airlines Logo
7:40 pm - 8:56 pm
POA
-
SFO
29h 16m
2 stops
American Airlines Logo
11:16 am - 3:35 pm
SFO
-
POA
24h 19m
2 stops
$871American Airlines
Mon, May 4 - Tue, May 19
American Airlines Logo
6:15 pm - 2:27 pm
POA
-
SFO
24h 12m
2 stops
American Airlines Logo
1:12 pm - 12:15 pm
SFO
-
POA
19h 03m
2 stops
$872American Airlines
Tue, Apr 21 - Tue, Apr 28
Copa Airlines Logo
1:20 am - 11:40 pm
POA
-
SFO
26h 20m
1 stop
Copa Airlines Logo
8:16 pm - 12:20 am
SFO
-
POA
24h 04m
1 stop
$894Copa Airlines
Tue, May 19 - Wed, Jun 3
Copa Airlines Logo
1:20 am - 6:14 pm
POA
-
SFO
20h 54m
1 stop
Copa Airlines Logo
8:16 pm - 12:20 am
SFO
-
POA
24h 04m
1 stop
$906Copa Airlines
Tue, May 19 - Wed, Jun 3

Copa Airlines flights from Porto Alegre to San Francisco

Our best Copa Airlines deals on Porto Alegre to San Francisco flight tickets
Copa Airlines
May 22
POA1:20 amPorto Alegre Salgado Filho
20h 54m
1 stop
SFO6:14 pmSan Francisco
May 30
SFO8:06 pmSan Francisco
24h 14m
1 stop
POA12:20 amPorto Alegre Salgado Filho
$870
Copa Airlines
May 19
POA1:20 amPorto Alegre Salgado Filho
26h 20m
1 stop
SFO11:40 pmSan Francisco
Jun 3
SFO8:16 pmSan Francisco
24h 04m
1 stop
POA12:20 amPorto Alegre Salgado Filho
$894
Copa Airlines
May 19
POA1:20 amPorto Alegre Salgado Filho
20h 54m
1 stop
SFO6:14 pmSan Francisco
Jun 3
SFO8:16 pmSan Francisco
24h 04m
1 stop
POA12:20 amPorto Alegre Salgado Filho
$906

United Airlines flights from Porto Alegre to San Francisco

Our best United Airlines deals on Porto Alegre to San Francisco flight tickets
United Airlines
Mar 11
POA5:10 pmPorto Alegre Salgado Filho
36h 18m
2 stops
SFO1:28 amSan Francisco
Apr 15
SFO12:45 amSan Francisco
33h 00m
2 stops
POA1:45 pmPorto Alegre Salgado Filho
$942
United Airlines
Mar 9
POA5:10 pmPorto Alegre Salgado Filho
26h 38m
2 stops
SFO3:48 pmSan Francisco
Apr 17
SFO2:10 pmSan Francisco
22h 00m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
$973
United Airlines
Mar 11
POA5:10 pmPorto Alegre Salgado Filho
28h 39m
2 stops
SFO5:49 pmSan Francisco
Apr 18
SFO10:50 pmSan Francisco
37h 30m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
$976

momondo 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, momondo users made 832,500 searches. Data last updated March 6, 2026.
Use the filters below to find and compare flights from Porto Alegre to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 8/17

6:25 pm-7:00 pm

2 stops28h 35m

San Francisco

Wed 8/26

1:59 pm-3:35 pm

2 stops21h 36m

$807

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 8/17

6:25 pm-7:00 pm

2 stops28h 35m

San Francisco

Wed 8/26

1:59 pm-3:35 pm

2 stops21h 36m

$811

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 8/17

6:25 pm-7:00 pm

2 stops28h 35m

San Francisco

Wed 8/26

8:00 am-10:40 am

2 stops22h 40m

$814

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 8/17

6:25 pm-7:00 pm

2 stops28h 35m

San Francisco

Wed 8/26

10:26 am-10:40 am

2 stops20h 14m

$851

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 8/17

7:05 pm-3:11 pm

2 stops24h 06m

San Francisco

Wed 8/26

7:30 am-11:15 am

2 stops23h 45m

$865

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Fri 5/22

1:20 am-6:14 pm

1 stop20h 54m

San Francisco

Sat 5/30

8:06 pm-12:20 am

1 stop24h 14m

$870

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 5/4

7:40 pm-8:56 pm

2 stops29h 16m

San Francisco

Tue 5/19

11:16 am-3:35 pm

2 stops24h 19m

$871
Quickest round-trip

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 4/21

6:15 pm-2:27 pm

2 stops24h 12m

San Francisco

Tue 4/28

1:12 pm-12:15 pm

2 stops19h 03m

$872

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 5/19

1:20 am-11:40 pm

1 stop26h 20m

San Francisco

Wed 6/3

8:16 pm-12:20 am

1 stop24h 04m

$894

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 5/19

1:20 am-6:14 pm

1 stop20h 54m

San Francisco

Wed 6/3

8:16 pm-12:20 am

1 stop24h 04m

$906

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

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

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

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $837.

How have Porto Alegre to San Francisco flight prices changed over time?

When to book flights from Porto Alegre to San Francisco

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

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

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

Fastest flight time

26h 40m

Direct flights

None
The fastest flight from Porto Alegre to San Francisco takes 26h 40m
There are no direct flights from Porto Alegre to San Francisco. There are no popular flight routes from Porto Alegre to San Francisco.
Search flight deals

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

    The straight-line distance from Porto Alegre Salgado Filho to San Francisco is 6555.1 mi. In terms of flight time, this usually takes a little over 26h 40m.

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Alegre Salgado Filho Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Walnut Creek
Hayward
Santa Clara
Berkeley
Big Sur
Calistoga
Fremont
Vallejo
Half Moon Bay
Salinas
Daly City
Sunnyvale
Pacific Grove
Turlock

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Porto Alegre.

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

Yes. All flights to San Francisco from Porto Alegre on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to San Francisco from Porto Alegre. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Porto Alegre to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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