Floralis Generica sculpture in a Buenos Aires park with buildings in the background. — flights from London to Buenos Aires
London, UKBuenos Aires

Flights from London to Buenos Aires

Nonstop flights from London (LHR) to Buenos Aires (EZE) take about 14h 25m (11,137 km). British Airways flies it. Lowest fare seen: $992 one-way, nonstop (22 Oct 2026).

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Photo of Buenos Aires: Domenico Cervini on Pexels.

When you land in Buenos Aires

The airport transfer and the few things worth sorting before you fly.

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Airlines flying London to Buenos Aires

Carriers on LHR–EZE according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ British Airwaysnonstop fare seen

London to Buenos Aires fares by month

Cheapest month seen for a nonstop flight: Feb 2027, from $1043 one-way. With stops: Feb 2027, from $590. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.

DepartingNonstop fromCheaper with stops
Oct 2026—$828 · 2 stops29 Oct 2026
Nov 2026$109626 Nov 2026 · British Airways$637 · 4 stops16 Nov 2026
Dec 2026$11643 Dec 2026 · British Airways$690 · 3 stops3 Dec 2026
Jan 2027$110718 Jan 2027 · British Airways$635 · 2 stops18 Jan 2027
Feb 2027$104319 Feb 2027 · British Airways$590 · 2 stops21 Feb 2027
Mar 2027$108220 Mar 2027 · British Airways$670 · 3 stops19 Mar 2027

When to go for the lowest fare

Fares were close across the months we saw: $637 for November 2026, $590 at best after that.

Nonstop or with a stop

A connection undercut nonstop in 5 of 5 months with both fares.

From Travelpayouts flight-search data, city to city (London to Buenos Aires, any airport), USD, read 22 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.

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Frequently asked questions — London to Buenos Aires flights

How long is the flight from London to Buenos Aires?
A nonstop flight from London (LHR) to Buenos Aires (EZE) takes about 14h 25m, covering 11,137 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.
How far is London from Buenos Aires by air?
The great-circle distance between London Heathrow Airport and Ezeiza International Airport - Ministro Pistarini is 11,137 km (6,920 miles), a ultra long-haul route.
Which airlines fly from London to Buenos Aires?
Airlines with flights or nonstop fares on the LHR–EZE route include British Airways. This is not a complete list — schedules change by season, so check the current options before booking.
How much does a flight from London to Buenos Aires cost?
The lowest one-way fare seen recently on LHR–EZE was $992 USD with British Airways (nonstop), departing 19 Feb 2027, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
What is the cheapest month to fly from London to Buenos Aires?
In fares seen on 22 Oct 2026, departures in February 2027 were cheapest, from $590 one-way, against $828 for October 2026, the dearest month. Fares change daily, so check your own dates.
Is it cheaper to fly nonstop or with a stop from London to Buenos Aires?
In the fares we saw (22 Oct 2026), connecting was cheaper: from $705 with one stop against $992 nonstop, a saving of $287. Nonstop saves the connection time.
Do I need a visa to travel from UK to Buenos Aires?
It depends on your passport. Some nationalities can enter Buenos Aires visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.

Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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