Cheap flights from London to Buenos Aires
From 1045 USD — compare hundreds of airlines
About this route
Compare flights from London to Buenos Aires, a about 11,137 km route (around 14h 25m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as British Airways operate this route.
Prices by date
Airlines on this route
FAQ
What's the cheapest month to fly London to Buenos Aires?
It's usually 2026-08, from 489 USD. Use the price calendar to compare other dates.
How long is the flight from London to Buenos Aires?
A nonstop flight takes about 14h 25m and covers around 11,137 km. Connecting itineraries take longer.
Are there direct flights from London to Buenos Aires?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from London to Buenos Aires?
British Airways operate this route, among others. Compare them all in the results.
When should I book London–Buenos Aires flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.