The cheapest times to fly from STN to AEP are

  • March 12th to June 24th (except the week of March 26th)
  • September 10th to October 28th
  • November 19th to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from STN to AEP is early to mid September. Prices can be as high as $4295 for Monday flights during mid December, or as low as $1700 for Thursday flights around early to mid September.


When to Fly to Buenos Aires

Flying from London (STN) to Buenos Aires (AEP) will usually cost between $1949 to $3056 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid September with an average ticket price of $1968. Due to high demand the most expensive time to fly is mid December, with an average price of $3063. Planning your trip to low-cost times can easily save you $1095 on economy flights and even more on first-class flights. Generally, any price below $2205 can be considered a good price for a round-trip STN to AEP flight.

See below for a graph of average weekly prices for the STN to AEP route. All prices are for round-trip tickets in USD.

STN to AEP Flight Prices

Compared to other flights, the STN to AEP flight is more expensive than the average and costs slightly more than the average flight leaving from London. The average price per mile (for a direct flight) is $0.2, which is below average.


Flight Prices by Day of the Week

Thursday is usually the cheapest day to fly to AEP, and Sunday the cheapest day to fly back into STN. Mondays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $535 (15%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Thursday and returning a week later will cost an average of $2226. Return trip prices are from the AEP to STN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from STN to AEP can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 13 hour 29 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from STN to AEP while comparing.

Destination alternative #1: Ministro Pistarini Airport (EZE) in Ezeiza

  • 19 miles (31 km) away from AEP
  • Usually 43.80% less expensive than AEP
  • 2-layover flights available

See STN to EZE flights

Destination alternative #2: Carrasco International Airport (MVD) in Montevideo

  • 137 miles (220 km) away from AEP
  • Usually 42.75% less expensive than AEP
  • 2-layover flights available

See STN to MVD flights


Flight Hacking STN to AEP

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from STN to AEP — but Champion Traveler does!

Hack #1: Madrid (STN > MAD > AEP)

  • Price for both tickets: $1003
  • Average savings: $1202 (54.5%)

See STN to GRU flights

Hack #2: Sao Paulo (STN > GRU > AEP)

  • Price for both tickets: $1364
  • Average savings: $841 (38.13%)

See STN to MAD flights

Hack #3: Santiago (STN > SCL > AEP)

  • Price for both tickets: $1388
  • Average savings: $817 (37.06%)

See STN to SCL flights


Flight Questions Answered

Still have questions about flying from STN to AEP? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Aerolineas Argentinas, Air France, British Airways, Eurowings, Iberia, LATAM, Lufthansa, SAS, SWISS, and potentially more during busy seasons.

How far away is it from Aeroparque Jorge Newbery Airport to London Stansted Airport?

The distance between the two airports is roughly 6941 miles or 11170 kilometers.

How long does it take to fly from STN to AEP?

The real-world flight time for a nonstop STN to AEP flight is about 13 hour 29 minutes.

How many flights go between London and Buenos Aires?

It depends on the day of the week and the date, but a typical day might have around 39 available flights from STN to AEP.


Airport Location Info


Departing Airport

Origination code STN
Origination airport name London Stansted Airport
City London
Country the United Kingdom
Latitude 51.9
Longitude 0.2

Return Airport

Destination code AEP
Destination airport name Aeroparque Jorge Newbery Airport
City Buenos Aires
Country Argentina
Latitude -34.6
Longitude -58.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.