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
The cost of a one-way flight from London to Buenos Aires ranges from $541 (June 2026) to $710 (December 2026). On average, the ticket price is about $635–$645.
Tickets from London to Buenos Aires cost roughly the same any month. This is convenient: you can plan your trip based on your schedule rather than prices.
There is a slight difference: it's a bit cheaper in June 2026–July 2026 (averaging $593) and slightly more in November 2026–December 2026 ($688). But overall, the difference is small.
On this route, you don't need to target specific months — prices are stable. The difference between the cheapest and most expensive period is only 14%. Book whenever it's convenient.
Monthly price variation is just 8.1%. Ticket costs on this route are among the most predictable.
London — Buenos Aires
06/12/2026
Departure
Direct flight
BA249
starting at $2,210
London — Buenos Aires
06/19/2026
Departure
Direct flight
BA249
starting at $1,560
London — Buenos Aires
06/21/2026
Departure
Direct flight
BA249
starting at $1,318
London — Buenos Aires
07/01/2026
Departure
Direct flight
BA249
starting at $1,373
London — Buenos Aires
07/08/2026
Departure
Direct flight
BA249
starting at $2,145
London — Buenos Aires
07/16/2026
Departure
Direct flight
BA249
starting at $2,725
London — Buenos Aires
06/15/2026
Departure
Direct flight
BA249
starting at $1,602
London — Buenos Aires
06/17/2026
Departure
Direct flight
BA249
starting at $1,183
London — Buenos Aires
06/27/2026
Departure
Direct flight
BA249
starting at $1,929
London — Buenos Aires
09/30/2026
Departure
Direct flight
BA249
starting at $1,072
starting at $1,067
starting at $541
starting at $616
starting at $710
More than 4 airlines operate flights from London to Buenos Aires, including British Airways, Avianca, Ryanair, and Wizz Air. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $541, 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 flight ticket from London to Buenos Aires according to data for the last 48 hours costs $541
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: June, October, September.
The fastest flights from London to Buenos Aires start from 21 hours 5 minutes in the air.
The following airlines operate direct flights on the route London — Buenos Aires: British Airways
The cheapest one-way flight from London to Buenos Aires departs on 06/17/2026, is operated by Avianca and costs $541
The cheapest roundtrip flight from London to Buenos Aires departs on 04/23/2027, is operated by Avianca and costs $1,062
Fastest flight from London to Buenos Aires takes 21h 5m
There are direct flights on this route 6 days a week: Su, Mo, We, Th, Fr, and Sa
The distance between London and Buenos Aires is 11136km (6904 miles). There are 7 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
We couldn't find any special offers for flights from London to Buenos Aires
