British Airways
Mo, Tu, We, and Sa
starting at $1,045
Compare airlines, prices, and flight durations for your trip
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from London to Buenos Aires:
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Looking for cheap flights from London, United Kingdom to Buenos Aires, Argentina? Look no further! Our air ticket search website is here to help you find the best deals for your travel plans. Discover the vibrant beauty of Buenos Aires without breaking the bank. With our user-friendly interface, you can easily compare prices from various airlines and choose the one that suits your budget. Explore the birthplace of tango, stroll through beautiful neighborhoods like Palermo and Recoleta, and indulge in mouthwatering steaks and delicious Malbec wines. Whether you're planning a city break or a longer vacation, finding affordable flights is just a few clicks away. Don't miss out on this incredible opportunity to experience the rich culture, history, and charm of Buenos Aires. Book your cheap flight now and make unforgettable memories in the enchanting capital of Argentina.
British Airways
Mo, Tu, We, and Sa
starting at $1,045
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.
London — Buenos Aires
03/23/2026
Departure
Direct flight
BA249
starting at $2,750
London — Buenos Aires
03/31/2026
Departure
Direct flight
BA249
starting at $1,357
London — Buenos Aires
04/20/2026
Departure
Direct flight
BA249
starting at $1,095
London — Buenos Aires
04/24/2026
Departure
Direct flight
BA249
starting at $1,162
London — Buenos Aires
05/04/2026
Departure
Direct flight
BA249
starting at $1,244
London — Buenos Aires
05/14/2026
Departure
Direct flight
BA249
starting at $1,166
London — Buenos Aires
06/06/2026
Departure
Direct flight
BA249
starting at $1,183
London — Buenos Aires
07/10/2026
Departure
Direct flight
BA249
starting at $1,295
London — Buenos Aires
08/01/2026
Departure
Direct flight
BA249
starting at $2,043
London — Buenos Aires
12/19/2026
Departure
Direct flight
BA249
starting at $1,885
starting at $1,041
starting at $409
starting at $440
starting at $440
starting at $974
More than 5 airlines operate flights from London to Buenos Aires, including British Airways, Ryanair, EasyJet, Wizz Air, and Wizz Air. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $409, 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 06/01/2026, is operated by Ryanair and costs $409
The cheapest roundtrip flight from London to Buenos Aires departs on 05/10/2026, is operated by Avianca and costs $857
Fastest flight from London to Buenos Aires takes 17h 25m
There are direct flights on this route 6 days a week: Mo, Tu, We, Th, Fr, and Sa
The distance between London and Buenos Aires is 11136km (6904 miles). There are 6 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 cheapest flight ticket from London to Buenos Aires according to data for the last 48 hours costs $409
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, May, April.
The fastest flights from London to Buenos Aires start from 17 hours 25 minutes in the air.
The following airlines operate direct flights on the route London — Buenos Aires: British Airways
The cost of a one-way flight from London to Buenos Aires ranges from $409 (June 2026) to $974 (August 2026). On average, the ticket price is about $645–$646.
