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Cheap flights from San Francisco to Porto Alegre from $439

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 8/11. 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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Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from San Francisco to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:25 am - 2:20 pm
SFO
-
POA
24h 55m
2 stops
Air Canada Logo
3:25 pm - 11:05 am
POA
-
SFO
24h 40m
2 stops
$925Air Canada
Tue, Nov 10 - Tue, Dec 1
Copa Airlines Logo
1:12 am - 12:15 am
SFO
-
POA
19h 03m
1 stop
Copa Airlines Logo
1:15 am - 6:00 pm
POA
-
SFO
20h 45m
1 stop
$970Copa Airlines
Tue, Aug 11 - Mon, Aug 24
GOL Logo
8:00 am - 11:40 pm
SFO
-
POA
34h 40m
2 stops
GOL Logo
5:20 am - 11:06 am
POA
-
SFO
34h 46m
2 stops
$976GOL
Tue, Nov 10 - Tue, Dec 1
GOL Logo
10:16 am - 3:35 pm
SFO
-
POA
24h 19m
2 stops
GOL Logo
2:00 pm - 11:19 am
POA
-
SFO
26h 19m
2 stops
$991GOL
Tue, Nov 10 - Tue, Dec 1
GOL Logo
8:00 am - 3:35 pm
SFO
-
POA
26h 35m
2 stops
GOL Logo
4:15 pm - 9:02 pm
POA
-
SFO
33h 47m
2 stops
$1,023GOL
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
6:00 am - 2:05 pm
SFO
-
POA
28h 05m
2 stops
United Airlines Logo
3:25 pm - 5:23 pm
POA
-
SFO
29h 58m
2 stops
$1,071United Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
11:55 pm - 9:20 am
SFO
-
POA
29h 25m
2 stops
Multiple Airlines Logo
9:15 pm - 10:35 pm
POA
-
SFO
29h 20m
3 stops
$1,111Multiple Airlines
Wed, Aug 12 - Tue, Aug 25
Multiple Airlines Logo
7:20 am - 6:20 am
SFO
-
POA
19h 00m
2 stops
Multiple Airlines Logo
4:45 am - 11:59 am
POA
-
SFO
35h 14m
2 stops
$1,116Multiple Airlines
Wed, Oct 7 - Mon, Oct 12
LATAM Airlines Logo
9:48 pm - 12:40 am
SFO
-
POA
22h 52m
2 stops
LATAM Airlines Logo
7:05 pm - 1:31 pm
POA
-
SFO
22h 26m
2 stops
$1,117LATAM Airlines
Sat, Aug 15 - Sat, Aug 22
Multiple Airlines Logo
1:12 am - 12:15 am
SFO
-
POA
19h 03m
1 stop
Multiple Airlines Logo
5:35 pm - 11:40 pm
POA
-
SFO
34h 05m
2 stops
$1,135Multiple Airlines
Tue, Aug 11 - Tue, Aug 25

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GOL flights from San Francisco to Porto Alegre

Our best GOL deals on San Francisco to Porto Alegre flight tickets
GOL
Nov 10
SFO8:00 amSan Francisco
34h 40m
2 stops
POA11:40 pmPorto Alegre Salgado Filho
Dec 1
POA5:20 amPorto Alegre Salgado Filho
34h 46m
2 stops
SFO11:06 amSan Francisco
$976
GOL
Nov 10
SFO10:16 amSan Francisco
24h 19m
2 stops
POA3:35 pmPorto Alegre Salgado Filho
Dec 1
POA2:00 pmPorto Alegre Salgado Filho
26h 19m
2 stops
SFO11:19 amSan Francisco
$991
GOL
Dec 7
SFO8:00 amSan Francisco
26h 35m
2 stops
POA3:35 pmPorto Alegre Salgado Filho
Dec 14
POA4:15 pmPorto Alegre Salgado Filho
33h 47m
2 stops
SFO9:02 pmSan Francisco
$1,023

LATAM Airlines flights from San Francisco to Porto Alegre

Our best LATAM Airlines deals on San Francisco to Porto Alegre flight tickets
LATAM Airlines
Aug 15
SFO9:48 pmSan Francisco
22h 52m
2 stops
POA12:40 amPorto Alegre Salgado Filho
Aug 22
POA7:05 pmPorto Alegre Salgado Filho
22h 26m
2 stops
SFO1:31 pmSan Francisco
$1,117
LATAM Airlines
Jul 14
SFO6:00 amSan Francisco
32h 15m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Jul 26
POA7:05 pmPorto Alegre Salgado Filho
43h 15m
2 stops
SFO10:20 amSan Francisco
$1,236
LATAM Airlines
Jul 6
SFO6:00 amSan Francisco
38h 15m
2 stops
POA12:15 amPorto Alegre Salgado Filho
Jul 20
POA9:55 pmPorto Alegre Salgado Filho
53h 04m
2 stops
SFO10:59 pmSan Francisco
$1,237

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 July 3, 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

Tue 11/10

8:25 am-2:20 pm

2 stops24h 55m

Porto Alegre Salgado Filho

Tue 12/1

3:25 pm-11:05 am

2 stops24h 40m

$925
Quickest round-trip

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 8/11

1:12 am-12:15 am

1 stop19h 03m

Porto Alegre Salgado Filho

Mon 8/24

1:15 am-6:00 pm

1 stop20h 45m

$970

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 11/10

8:00 am-11:40 pm

2 stops34h 40m

Porto Alegre Salgado Filho

Tue 12/1

5:20 am-11:06 am

2 stops34h 46m

$976

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 11/10

10:16 am-3:35 pm

2 stops24h 19m

Porto Alegre Salgado Filho

Tue 12/1

2:00 pm-11:19 am

2 stops26h 19m

$991

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Mon 12/7

8:00 am-3:35 pm

2 stops26h 35m

Porto Alegre Salgado Filho

Mon 12/14

4:15 pm-9:02 pm

2 stops33h 47m

$1,023

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Mon 8/17

6:00 am-2:05 pm

2 stops28h 05m

Porto Alegre Salgado Filho

Mon 8/24

3:25 pm-5:23 pm

2 stops29h 58m

$1,071

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Wed 8/12

11:55 pm-9:20 am

2 stops29h 25m

Porto Alegre Salgado Filho

Tue 8/25

9:15 pm-10:35 pm

3 stops29h 20m

$1,111

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Wed 10/7

7:20 am-6:20 am

2 stops19h 00m

Porto Alegre Salgado Filho

Mon 10/12

4:45 am-11:59 am

2 stops35h 14m

$1,116

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Sat 8/15

9:48 pm-12:40 am

2 stops22h 52m

Porto Alegre Salgado Filho

Sat 8/22

7:05 pm-1:31 pm

2 stops22h 26m

$1,117

San FranciscoPorto Alegre

SFO - POA

SFOPOA

San Francisco

Tue 8/11

1:12 am-12:15 am

1 stop19h 03m

Porto Alegre Salgado Filho

Tue 8/25

5:35 pm-11:40 pm

2 stops34h 05m

$1,135

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 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 cheapest month to fly to Porto Alegre?

The cheapest month to fly to Porto Alegre from San Francisco is in August. Flight prices, which tend to average around $644, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in August, then February is your next best option. Flight prices from San Francisco to Porto Alegre during February average around $650.

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

You could potentially save up to 19% 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

19h 00m

Direct flights

None
The fastest flight from San Francisco to Porto Alegre takes 19h 00m
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

Frequently asked questions about flying from San Francisco to Porto Alegre

  • 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 6554.2 mi. By plane, this route typically takes 19h 00m.

  • 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 $364Free CancellationRating
7.6
1,567 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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