Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Porto Alegre from $334

This is the cheapest one-way 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 11/8. 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

Discover deals from 900+ travel sites with momondo.

Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
1:42 am - 12:30 amSFO-POA
18h 48m1 stop
Copa Airlines Logo
1:45 am - 6:25 pmPOA-SFO
20h 40m1 stop
$648Copa Airlines
Find Deal
Sat, Apr 18 - Wed, Apr 29
LATAM Airlines Logo
11:45 am - 5:05 pmSFO-POA
25h 20m2 stops
LATAM Airlines Logo
7:45 am - 10:35 amPOA-SFO
30h 50m2 stops
$656LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
United Airlines Logo
7:00 am - 2:35 pmSFO-POA
27h 35m2 stops
United Airlines Logo
5:10 pm - 1:35 pmPOA-SFO
24h 25m2 stops
$668United Airlines
Find Deal
Sun, Apr 19 - Wed, May 6
United Airlines Logo
12:45 am - 1:10 pmSFO-POA
32h 25m2 stops
United Airlines Logo
5:10 pm - 11:20 amPOA-SFO
22h 10m2 stops
$677United Airlines
Find Deal
Sun, Apr 5 - Tue, Apr 21
Air Canada Logo
8:10 am - 2:35 pmSFO-POA
26h 25m2 stops
Air Canada Logo
5:10 pm - 9:21 pmPOA-SFO
32h 11m2 stops
$794Air Canada
Find Deal
Wed, Apr 8 - Mon, Apr 27
Air Canada Logo
12:00 pm - 2:35 pmSFO-POA
22h 35m2 stops
Air Canada Logo
5:10 pm - 9:21 pmPOA-SFO
32h 11m2 stops
$800Air Canada
Find Deal
Mon, Apr 6 - Mon, Apr 27
Delta Logo
6:00 am - 6:25 amSFO-POA
20h 25m2 stops
Delta Logo
5:45 pm - 11:59 amPOA-SFO
22h 14m2 stops
$831Delta
Find Deal
Sun, Apr 19 - Fri, May 8
American Airlines Logo
2:28 pm - 10:35 amSFO-POA
40h 07m2 stops
American Airlines Logo
6:35 pm - 9:57 amPOA-SFO
19h 22m2 stops
$833American Airlines
Find Deal
Thu, Apr 9 - Tue, Apr 28
Delta Logo
11:55 pm - 1:50 pmSFO-POA
33h 55m2 stops
Delta Logo
7:20 am - 11:12 pmPOA-SFO
19h 52m2 stops
$836Delta
Find Deal
Thu, Apr 9 - Mon, Apr 27
American Airlines Logo
2:28 pm - 10:35 amSFO-POA
40h 07m2 stops
American Airlines Logo
6:35 pm - 9:34 amPOA-SFO
42h 59m2 stops
$846American Airlines
Find Deal
Thu, Apr 9 - Wed, Apr 29

Copa Airlines flights from San Francisco to Porto Alegre

Our best Copa Airlines deals on San Francisco to Porto Alegre flight tickets
Copa Airlines
Apr 18
SFO1:42 amSan Francisco
18h 48m
1 stop
POA12:30 amPorto Alegre Salgado Filho
Apr 29
POA1:45 amPorto Alegre Salgado Filho
20h 40m
1 stop
SFO6:25 pmSan Francisco
$648
Find similar
Copa Airlines
Apr 18
SFO1:42 amSan Francisco
18h 48m
1 stop
POA12:30 amPorto Alegre Salgado Filho
Apr 29
POA1:45 amPorto Alegre Salgado Filho
25h 55m
1 stop
SFO11:40 pmSan Francisco
$726
Find similar
Copa Airlines
Mar 23
SFO1:54 amSan Francisco
18h 31m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Mar 25
POA1:30 amPorto Alegre Salgado Filho
20h 58m
1 stop
SFO6:28 pmSan Francisco
$768
Find similar

LATAM Airlines flights from San Francisco to Porto Alegre

Our best LATAM Airlines deals on San Francisco to Porto Alegre flight tickets
LATAM Airlines
Mar 24
SFO11:45 amSan Francisco
25h 20m
2 stops
POA5:05 pmPorto Alegre Salgado Filho
Mar 26
POA7:45 amPorto Alegre Salgado Filho
30h 50m
2 stops
SFO10:35 amSan Francisco
$656
Find similar
LATAM Airlines
Mar 24
SFO11:55 pmSan Francisco
26h 35m
2 stops
POA6:30 amPorto Alegre Salgado Filho
Mar 26
POA8:10 pmPorto Alegre Salgado Filho
25h 15m
2 stops
SFO5:25 pmSan Francisco
$772
Find similar

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 November 3, 2025.
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

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sat 4/18

1:42 am-12:30 am

1 stop18h 48m

Porto Alegre Salgado Filho

Wed 4/29

1:45 am-6:25 pm

1 stop20h 40m

$648

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 3/24

11:45 am-5:05 pm

2 stops25h 20m

Porto Alegre Salgado Filho

Thu 3/26

7:45 am-10:35 am

2 stops30h 50m

$656

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sun 4/19

7:00 am-2:35 pm

2 stops27h 35m

Porto Alegre Salgado Filho

Wed 5/6

5:10 pm-1:35 pm

2 stops24h 25m

$668

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sun 4/5

12:45 am-1:10 pm

2 stops32h 25m

Porto Alegre Salgado Filho

Tue 4/21

5:10 pm-11:20 am

2 stops22h 10m

$677

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Wed 4/8

8:10 am-2:35 pm

2 stops26h 25m

Porto Alegre Salgado Filho

Mon 4/27

5:10 pm-9:21 pm

2 stops32h 11m

$794

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Mon 4/6

12:00 pm-2:35 pm

2 stops22h 35m

Porto Alegre Salgado Filho

Mon 4/27

5:10 pm-9:21 pm

2 stops32h 11m

$800

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sun 4/19

6:00 am-6:25 am

2 stops20h 25m

Porto Alegre Salgado Filho

Fri 5/8

5:45 pm-11:59 am

2 stops22h 14m

$831

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Thu 4/9

2:28 pm-10:35 am

2 stops40h 07m

Porto Alegre Salgado Filho

Tue 4/28

6:35 pm-9:57 am

2 stops19h 22m

$833

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Thu 4/9

11:55 pm-1:50 pm

2 stops33h 55m

Porto Alegre Salgado Filho

Mon 4/27

7:20 am-11:12 pm

2 stops19h 52m

$836

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Thu 4/9

2:28 pm-10:35 am

2 stops40h 07m

Porto Alegre Salgado Filho

Wed 4/29

6:35 pm-9:34 am

2 stops42h 59m

$846

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

What is the typical price of a round-trip flight between San Francisco and Porto Alegre?

What is the cheapest day to depart on your flight to Porto Alegre?

Our data shows that Wednesday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $864. On the other hand, Saturday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,543.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the evening. Flights from San Francisco to Porto Alegre during this time can be as low as $1,020. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,422 on average. Flights to Porto Alegre from San Francisco at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 11% 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

Direct flights

None
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 18h 31m.

  • 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
7.6
1,561 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $578Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
United AirlinesPriceFrom $643Free CancellationRating
7.4
8,997 reviews
Search United 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.

An easier way to manage your Porto Alegre trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/3
Wed 12/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Brazil