Captain Cheap
A classic sailing ship docked at Puerto Madero with cityscape backdrop, under a clear blue sky.

LHR → AEP

Cheap flights from London to Buenos Aires

We track fares from London to Buenos Aires, Argentina every day. Across 32 prices we've logged, the cheapest was €907 return and a typical fare runs around €1063. The cheapest month to fly is usually Oct 2026.

Cheapest seen

€907

Typical price

€1063

Cheapest month

Oct 2026

Non-stop

With a stop

No live deal on this exact route right now — but the typical fare is around €1063. Search your dates below, or browse all current deals.

Cheapest months to fly

The typical cheapest fare by month, from our tracking — a guide only. Check the live price on Aviasales before booking.

MonthTypical fromCheck price
Oct 2026€1033Check →

Each link opens the live Aviasales search for that month, where you can pick the exact cheapest dates.

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Searches Aviasales. We may earn a commission — you pay the same price.

London to Buenos Aires: the basics

Route
London (LHR) → Buenos Aires (AEP)
Distance
11,106 km
Non-stop
No (with a stop)
Airlines seen
AV, LA