Cheap flights from Buenos Aires to San Francisco from $501
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to San Francisco departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
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.Find the cheapest flights from Buenos Aires to San Francisco
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Air Canada flights from Buenos Aires to San Francisco
Our best Air Canada deals on Buenos Aires to San Francisco flight tickets
Avianca flights from Buenos Aires to San Francisco
Our best Avianca deals on Buenos Aires to San Francisco flight tickets
See travel insights to San Francisco from
How to get the cheapest flight ticket from Buenos Aires 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 typical price of a round-trip flight between Buenos Aires and San Francisco?
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 September is also cheap. Prices for this month can be found on momondo for an average of $1,137.
What is the cheapest day to depart on your flight to San Francisco?
The cheapest day to depart from Buenos Aires to San Francisco is on a Tuesday when prices can be found for as low as $1,046. The most expensive day to fly to San Francisco is Saturday, with ticket prices averaging around $1,248.
What is the cheapest time of day to depart on your flight to San Francisco?
Our data shows that the cheapest Buenos Aires to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $1,030. Flights in the evening are often more expensive with an average ticket price of $1,163.
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from Buenos Aires when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $1,306 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Buenos Aires for as low as $982 on momondo.
Can stopping save me money on Buenos Aires to San Francisco flights?
You could potentially save up to 12% on your flight if you consider stops on a Buenos Aires to San Francisco flight.
How have Buenos Aires to San Francisco flight prices changed over time?
As of July 2025, prices for Buenos Aires to San Francisco flights are approximately 35% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Buenos Aires to San Francisco?
Avianca, GOL, and LATAM Airlines are the most popular carriers operating from Buenos Aires to San Francisco
What airlines fly to San Francisco?
American Airlines, Copa Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Buenos Aires according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 5 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.
When to book flights from Buenos Aires to San Francisco
Cheap Buenos Aires to San Francisco (BUE to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Buenos Aires to San Francisco
How far is Buenos Aires to San Francisco by plane?
San Francisco is 6464.7 mi away from Buenos Aires. Typically, this will take 18h 29m by plane in normal conditions.
When did momondo last update prices for flights from Buenos Aires to San Francisco Airport?
Prices for flights from Buenos Aires to San Francisco Airport were last updated today.
How many operators does momondo search for flights from Buenos Aires to San Francisco Airport?
There are 5 operators available for flights from Buenos Aires to San Francisco Airport as of July 2025.
How old do you have to be to fly from Buenos Aires to San Francisco 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 Buenos Aires to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Buenos Aires to San Francisco?
Based on momondo bookings for flights between Buenos Aires and San Francisco, the leading airline is Copa Airlines, making up 32% of the total bookings. Other popular airlines include American Airlines with 28%, Avianca with 12%, and United Airlines with 11%.
Best airlines flying from Buenos Aires to San Francisco
Compare and see reviews for airlines that fly from Buenos Aires to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $731 | Free Cancellation | Rating 6.7 2,363 reviews | |||
| PriceFrom $763 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $787 | Free Cancellation | Rating 7.5 1,465 reviews | |||
| PriceFrom $887 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $1,064 | Free Cancellation | Rating 8.0 7,983 reviews |
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Buenos Aires 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 Buenos Aires.
Can I find flights from Buenos Aires to San Francisco with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Buenos Aires to San Francisco flights to just show those with flexible booking policies.
How can momondo help me find flights from Buenos Aires to San Francisco?
Once all potential Buenos Aires to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Buenos Aires to San Francisco right now. Can momondo alert me if prices change?
If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Buenos Aires and alert you when they change.