There are most likely no direct flights on the London — Buenos Aires route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from London to Buenos Aires. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from London to Buenos Aires, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
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There are most likely no direct flights on the London — Buenos Aires route
All airports
London — Buenos Aires
10/02/2026
Departure
Direct flight
BA249
starting at $2,388
London — Buenos Aires
10/03/2026
Departure
Direct flight
BA249
starting at $4,340
London — Buenos Aires
10/05/2026
Departure
Direct flight
BA249
starting at $2,279
London — Buenos Aires
10/06/2026
Departure
Direct flight
BA249
starting at $1,428
London — Buenos Aires
10/07/2026
Departure
Direct flight
BA249
starting at $3,259
London — Buenos Aires
10/08/2026
Departure
Direct flight
BA249
starting at $4,343
London — Buenos Aires
10/10/2026
Departure
Direct flight
BA249
starting at $4,340
London — Buenos Aires
10/13/2026
Departure
Direct flight
BA249
starting at $2,350
London — Buenos Aires
10/14/2026
Departure
Direct flight
BA249
starting at $4,168
London — Buenos Aires
10/15/2026
Departure
Direct flight
BA249
starting at $3,251
starting at $1,045
starting at $425
starting at $436
starting at $502
starting at $540
starting at $780
starting at $802
starting at $893
starting at $985
More than 9 airlines operate flights from London to Buenos Aires, including British Airways, Ryanair, LC Busre SAC, Iberia, Wizz Air, United Airlines, Avianca, TAP Portugal, and Finnair. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $425, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.
The cheapest one-way flight from London to Buenos Aires departs on 06/02/2027, is operated by Ryanair and costs $425
The cheapest roundtrip flight from London to Buenos Aires departs on 11/17/2026, is operated by LC Busre SAC and costs $1,050
Fastest flight from London to Buenos Aires takes 21h 35m
There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa
The distance between London and Buenos Aires is 11127km (6899 miles). There are 5 direct flights from London to Buenos Aires. The time difference between London and Buenos Aires is 3h. Flights from London begin at 9:45 PM. The latest flight from London departs at 9:45 PM
The price trend from London to Buenos Aires resembles a smile: costs drop, bottom out, then recover. Knowing this, you can pick dates with the best prices.
Prices fall from December 2026 to February 2027 (42%), then rise from February 2027 to June 2027 (+7%). The best period is February 2027–March 2027 ($483), the most expensive is December 2026–January 2027 ($779).
The best time to buy is February 2027–March 2027, when prices are at their lowest. This can save you up to 38% compared to the expensive months (December 2026–January 2027).
Monthly price variation is 22%. On this route, your departure date noticeably affects the cost, and choosing wisely can lead to real savings.
The cost of a one-way flight from London to Buenos Aires ranges from $461 (February 2027) to $794 (December 2026). On average, the ticket price is about $594–$611.
The cheapest flight ticket from London to Buenos Aires according to data for the last 48 hours costs $425
Often the best time to buy tickets from London to Buenos Aires is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from London to Buenos Aires can be found flying in these months: February, June, April.
The fastest flights from London to Buenos Aires start from 21 hours 35 minutes in the air.
The following airlines operate direct flights on the route London — Buenos Aires: British Airways
