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Cheap flights from San Francisco to Buenos Aires from $346

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 Buenos Aires departing on 3/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Francisco to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
1:35 am - 5:40 am
SFO
-
AEP
47h 05m
2 stops
Avianca Logo
7:00 am - 10:50 pm
AEP
-
SFO
19h 50m
2 stops
$887Avianca
Tue, Mar 3 - Tue, Mar 10
Avianca Logo
1:35 am - 3:50 pm
SFO
-
EZE
33h 15m
2 stops
Avianca Logo
7:30 am - 10:50 pm
EZE
-
SFO
19h 20m
2 stops
$889Avianca
Tue, Mar 3 - Fri, Mar 13
Avianca Logo
2:15 pm - 5:40 am
SFO
-
AEP
35h 25m
2 stops
Avianca Logo
7:00 am - 11:55 pm
AEP
-
SFO
20h 55m
2 stops
$889Avianca
Thu, Apr 9 - Thu, Apr 30
LATAM Airlines Logo
10:00 pm - 9:00 am
SFO
-
EZE
30h 00m
1 stop
LATAM Airlines Logo
9:55 pm - 12:07 pm
EZE
-
SFO
42h 12m
2 stops
$890LATAM Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
11:55 pm - 5:40 am
SFO
-
EZE
25h 45m
2 stops
Multiple Airlines Logo
5:36 am - 12:50 pm
EZE
-
SFO
35h 14m
3 stops
$891Multiple Airlines
Tue, May 5 - Tue, May 19
Multiple Airlines Logo
11:55 pm - 4:20 am
SFO
-
AEP
24h 25m
3 stops
Multiple Airlines Logo
7:00 am - 11:55 pm
AEP
-
SFO
20h 55m
2 stops
$893Multiple Airlines
Sat, May 9 - Sat, May 23
Multiple Airlines Logo
11:55 pm - 4:20 am
SFO
-
AEP
24h 25m
3 stops
Multiple Airlines Logo
7:00 am - 10:35 pm
AEP
-
SFO
19h 35m
2 stops
$895Multiple Airlines
Wed, May 6 - Wed, May 20
Multiple Airlines Logo
11:55 pm - 2:45 am
SFO
-
EZE
22h 50m
3 stops
Multiple Airlines Logo
4:50 pm - 10:35 pm
EZE
-
SFO
33h 45m
2 stops
$897Multiple Airlines
Mon, May 4 - Mon, May 18
Avianca Logo
11:10 pm - 12:35 am
SFO
-
EZE
20h 25m
2 stops
Avianca Logo
7:30 am - 10:50 pm
EZE
-
SFO
19h 20m
2 stops
$898Avianca
Sun, Feb 22 - Tue, Mar 10
LATAM Airlines Logo
8:00 am - 9:00 am
SFO
-
EZE
20h 00m
1 stop
LATAM Airlines Logo
7:10 am - 12:07 pm
EZE
-
SFO
32h 57m
2 stops
$927LATAM Airlines
Sun, Mar 1 - Tue, Mar 10

American Airlines flights from San Francisco to Buenos Aires

Our best American Airlines deals on San Francisco to Buenos Aires flight tickets
American Airlines
Apr 20
SFO1:12 pmSan Francisco
15h 38m
1 stop
EZE8:50 amBuenos Aires Ministro Pistarini
May 11
EZE8:35 pmBuenos Aires Ministro Pistarini
18h 27m
1 stop
SFO11:02 amSan Francisco
$952
American Airlines
Mar 30
SFO1:20 pmSan Francisco
15h 30m
1 stop
EZE8:50 amBuenos Aires Ministro Pistarini
Apr 15
EZE8:40 pmBuenos Aires Ministro Pistarini
28h 14m
1 stop
SFO8:54 pmSan Francisco
$964
American Airlines
Mar 28
SFO10:56 pmSan Francisco
28h 19m
1 stop
EZE7:15 amBuenos Aires Ministro Pistarini
Apr 5
EZE8:30 pmBuenos Aires Ministro Pistarini
18h 20m
1 stop
SFO10:50 amSan Francisco
$979

Avianca flights from San Francisco to Buenos Aires

Our best Avianca deals on San Francisco to Buenos Aires flight tickets
Avianca
Mar 3
SFO1:35 amSan Francisco
47h 05m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Mar 10
AEP7:00 amBuenos Aires Jorge Newbery
19h 50m
2 stops
SFO10:50 pmSan Francisco
$887
Avianca
Mar 3
SFO1:35 amSan Francisco
33h 15m
2 stops
EZE3:50 pmBuenos Aires Ministro Pistarini
Mar 13
EZE7:30 amBuenos Aires Ministro Pistarini
19h 20m
2 stops
SFO10:50 pmSan Francisco
$889
Avianca
Feb 22
SFO11:10 pmSan Francisco
20h 25m
2 stops
EZE12:35 amBuenos Aires Ministro Pistarini
Mar 10
EZE7:30 amBuenos Aires Ministro Pistarini
19h 20m
2 stops
SFO10:50 pmSan Francisco
$898

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Buenos Aires 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 February 8, 2026.
Use the filters below to find and compare flights from San Francisco to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Tue 3/3

1:35 am-5:40 am

2 stops47h 05m

Buenos Aires Jorge Newbery

Tue 3/10

7:00 am-10:50 pm

2 stops19h 50m

$887

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Tue 3/3

1:35 am-3:50 pm

2 stops33h 15m

Buenos Aires Ministro Pistarini

Fri 3/13

7:30 am-10:50 pm

2 stops19h 20m

$889

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Thu 4/9

2:15 pm-5:40 am

2 stops35h 25m

Buenos Aires Jorge Newbery

Thu 4/30

7:00 am-11:55 pm

2 stops20h 55m

$889

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Wed 3/4

10:00 pm-9:00 am

1 stop30h 00m

Buenos Aires Ministro Pistarini

Wed 3/11

9:55 pm-12:07 pm

2 stops42h 12m

$890

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Tue 5/5

11:55 pm-5:40 am

2 stops25h 45m

Buenos Aires Ministro Pistarini

Tue 5/19

5:36 am-12:50 pm

3 stops35h 14m

$891

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Sat 5/9

11:55 pm-4:20 am

3 stops24h 25m

Buenos Aires Jorge Newbery

Sat 5/23

7:00 am-11:55 pm

2 stops20h 55m

$893

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Wed 5/6

11:55 pm-4:20 am

3 stops24h 25m

Buenos Aires Jorge Newbery

Wed 5/20

7:00 am-10:35 pm

2 stops19h 35m

$895

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Mon 5/4

11:55 pm-2:45 am

3 stops22h 50m

Buenos Aires Ministro Pistarini

Mon 5/18

4:50 pm-10:35 pm

2 stops33h 45m

$897

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Sun 2/22

11:10 pm-12:35 am

2 stops20h 25m

Buenos Aires Ministro Pistarini

Tue 3/10

7:30 am-10:50 pm

2 stops19h 20m

$898

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Sun 3/1

8:00 am-9:00 am

1 stop20h 00m

Buenos Aires Ministro Pistarini

Tue 3/10

7:10 am-12:07 pm

2 stops32h 57m

$927

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 Buenos Aires from

How to get the cheapest flight ticket from San Francisco to Buenos Aires

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 Buenos Aires?

The cheapest month to fly to Buenos Aires from San Francisco is in May. Flight prices, which tend to average around $1,025, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from San Francisco during September instead. Flights to Buenos Aires in September, while not as cheap as those in May, still average around $1,145.

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from San Francisco for as low as $1,175 on momondo.

Can stopping save me money on San Francisco to Buenos Aires flights?

You could potentially save up to 16% on your flight if you consider stops on a San Francisco to Buenos Aires flight.

How have San Francisco to Buenos Aires flight prices changed over time?

As of February 2026, prices for San Francisco to Buenos Aires flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Buenos Aires

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

Cheap San Francisco to Buenos Aires (SFO to BUE) flight deals and tips

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

Fastest flight time

18h 15m

Direct flights

None
The fastest flight from San Francisco to Buenos Aires takes 18h 15m
There are no direct flights from San Francisco to Buenos Aires. There are no popular flight routes from San Francisco to Buenos Aires.
Search flight deals

  • How far is San Francisco to Buenos Aires by plane?

    A flight from San Francisco to Buenos Aires will travel around 6464.7 mi. Typically, this will take 18h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from San Francisco Airport to Buenos Aires?

    Prices for flights from San Francisco Airport to Buenos Aires are updated daily.

  • How many operators does momondo search for flights from San Francisco Airport to Buenos Aires?

  • How old do you have to be to fly from San Francisco Airport to Buenos Aires?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The travel and health documents required for your trip to Buenos Aires 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 Buenos Aires. 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 Buenos Aires?

Best airlines flying from San Francisco to Buenos Aires

Compare and see reviews for airlines that fly from San Francisco to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $654Free CancellationRating
6.5
2,497 reviews
Search Avianca flights
DeltaPriceFrom $875Free CancellationRating
7.9
8,173 reviews
Search Delta flights
LATAM AirlinesPriceFrom $886Free CancellationRating
7.5
1,916 reviews
Search LATAM Airlines flights
United AirlinesPriceFrom $969Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $973Free CancellationRating
7.5
1,556 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $1,025Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
AeromexicoPriceFrom $1,119Free CancellationRating
7.4
1,578 reviews
Search Aeromexico flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Buenos Aires?

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

Can I find flights from San Francisco to Buenos Aires with flexible booking policies on momondo?

All flight searches from San Francisco to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Francisco to Buenos Aires?

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

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

Yes momondo offers price alerts on flights to Buenos Aires from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport