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Cheap flights from Porto Alegre to San Francisco from $374

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 11/9. 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

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Air Canada Logo
3:25 pm - 3:25 pmPOA-SFO
28h 00m2 stops
Air Canada Logo
8:10 am - 4:25 pmSFO-POA
28h 15m2 stops
$788Air Canada
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Thu, Mar 12 - Sun, Mar 29
Air Canada Logo
12:35 pm - 1:30 pmPOA-SFO
29h 55m2 stops
Air Canada Logo
4:15 pm - 4:10 pmSFO-POA
43h 55m2 stops
$795Air Canada
Find Deal
Tue, Feb 17 - Mon, Mar 16
United Airlines Logo
3:25 pm - 1:25 pmPOA-SFO
27h 00m2 stops
United Airlines Logo
11:59 pm - 4:10 pmSFO-POA
35h 11m2 stops
$814United Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
LATAM Airlines Logo
12:40 pm - 12:36 pmPOA-SFO
28h 56m2 stops
LATAM Airlines Logo
6:00 am - 7:20 pmSFO-POA
32h 20m2 stops
$822LATAM Airlines
Find Deal
Tue, Dec 9 - Wed, Jan 7
United Airlines Logo
3:25 pm - 5:48 pmPOA-SFO
31h 23m2 stops
United Airlines Logo
11:59 pm - 2:35 pmSFO-POA
34h 36m2 stops
$827United Airlines
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Thu, Mar 5 - Sat, Mar 14
LATAM Airlines Logo
7:45 am - 10:35 amPOA-SFO
31h 50m2 stops
LATAM Airlines Logo
11:30 am - 5:00 pmSFO-POA
25h 30m2 stops
$835LATAM Airlines
Find Deal
Thu, Mar 5 - Sat, Mar 14
Multiple Airlines Logo
7:20 am - 7:58 amPOA-SFO
28h 38m2 stops
Multiple Airlines Logo
11:55 pm - 6:25 amSFO-POA
50h 30m2 stops
$863Multiple Airlines
Find Deal
Mon, Mar 30 - Mon, Apr 6
American Airlines Logo
6:05 pm - 11:39 amPOA-SFO
22h 34m2 stops
American Airlines Logo
7:34 am - 11:00 amSFO-POA
22h 26m2 stops
$899American Airlines
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Tue, Jan 27 - Tue, Feb 3
American Airlines Logo
6:05 pm - 11:39 amPOA-SFO
22h 34m2 stops
American Airlines Logo
7:34 am - 11:00 amSFO-POA
22h 26m2 stops
$921American Airlines
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Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
4:40 am - 9:44 amPOA-SFO
34h 04m2 stops
Multiple Airlines Logo
12:10 pm - 5:50 pmSFO-POA
24h 40m2 stops
$996Multiple Airlines
Find Deal
Wed, Nov 26 - Thu, Dec 4

Air Canada flights from Porto Alegre to San Francisco

Our best Air Canada deals on Porto Alegre to San Francisco flight tickets
Air Canada
Mar 12
POA3:25 pmPorto Alegre Salgado Filho
28h 00m
2 stops
SFO3:25 pmSan Francisco
Mar 29
SFO8:10 amSan Francisco
28h 15m
2 stops
POA4:25 pmPorto Alegre Salgado Filho
$788
Find similar
Air Canada
Feb 17
POA12:35 pmPorto Alegre Salgado Filho
29h 55m
2 stops
SFO1:30 pmSan Francisco
Mar 16
SFO4:15 pmSan Francisco
43h 55m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
$795
Find similar

United Airlines flights from Porto Alegre to San Francisco

Our best United Airlines deals on Porto Alegre to San Francisco flight tickets
United Airlines
Nov 26
POA3:25 pmPorto Alegre Salgado Filho
27h 00m
2 stops
SFO1:25 pmSan Francisco
Dec 3
SFO11:59 pmSan Francisco
35h 11m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
$814
Find similar
United Airlines
Mar 5
POA3:25 pmPorto Alegre Salgado Filho
31h 23m
2 stops
SFO5:48 pmSan Francisco
Mar 14
SFO11:59 pmSan Francisco
34h 36m
2 stops
POA2:35 pmPorto Alegre Salgado Filho
$827
Find similar
United Airlines
Feb 18
POA3:25 pmPorto Alegre Salgado Filho
28h 32m
2 stops
SFO2:57 pmSan Francisco
Feb 22
SFO7:15 amSan Francisco
27h 55m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
$877
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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 October 14, 2025.
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

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 3/12

3:25 pm-3:25 pm

2 stops28h 00m

San Francisco

Sun 3/29

8:10 am-4:25 pm

2 stops28h 15m

$788

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 2/17

12:35 pm-1:30 pm

2 stops29h 55m

San Francisco

Mon 3/16

4:15 pm-4:10 pm

2 stops43h 55m

$795

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Wed 11/26

3:25 pm-1:25 pm

2 stops27h 00m

San Francisco

Wed 12/3

11:59 pm-4:10 pm

2 stops35h 11m

$814

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 12/9

12:40 pm-12:36 pm

2 stops28h 56m

San Francisco

Wed 1/7

6:00 am-7:20 pm

2 stops32h 20m

$822

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 3/5

3:25 pm-5:48 pm

2 stops31h 23m

San Francisco

Sat 3/14

11:59 pm-2:35 pm

2 stops34h 36m

$827

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Thu 3/5

7:45 am-10:35 am

2 stops31h 50m

San Francisco

Sat 3/14

11:30 am-5:00 pm

2 stops25h 30m

$835

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Mon 3/30

7:20 am-7:58 am

2 stops28h 38m

San Francisco

Mon 4/6

11:55 pm-6:25 am

2 stops50h 30m

$863

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 1/27

6:05 pm-11:39 am

2 stops22h 34m

San Francisco

Tue 2/3

7:34 am-11:00 am

2 stops22h 26m

$899

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Tue 1/27

6:05 pm-11:39 am

2 stops22h 34m

San Francisco

Tue 2/3

7:34 am-11:00 am

2 stops22h 26m

$921

Porto AlegreSan Francisco

POA - SFO

POASFO

Porto Alegre Salgado Filho

Wed 11/26

4:40 am-9:44 am

2 stops34h 04m

San Francisco

Thu 12/4

12:10 pm-5:50 pm

2 stops24h 40m

$996

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $752.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Porto Alegre to San Francisco is on a Thursday when prices can be found for as low as $994. The most expensive day to fly to San Francisco is Saturday, with ticket prices averaging around $1,278.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Porto Alegre to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $1,059. Flights in the afternoon are often more expensive with an average ticket price of $1,222.

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

Direct flights

None
There are no direct flights from Porto Alegre to San Francisco. There are no popular flight routes from Porto Alegre to San Francisco.
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  • 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 20h 54m.

  • 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
Calistoga
Hayward
Roseville
Big Sur
Santa Clara
Fremont
Daly City
Berkeley
Walnut Creek
Half Moon Bay
Vallejo
Salinas
Redwood City
Turlock
South San Francisco

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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