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Flight time from London to Buenos Aires

About 14 hours non-stop, 11,137 km (6,920 miles), with your local arrival time and the time difference.

Estimated flight time14hnon-stop
Distance11,137 km6,920 miles · 6,013 nm
Time difference−3hBuenos Aires vs London
Local time now12:53 / 09:53London / Buenos Aires

Estimate for a direct flight from London (LHR, Heathrow) to Buenos Aires (EZE, Ezeiza). Change the departure time below to see your local arrival time.

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How long is the flight from London to Buenos Aires?

A non-stop flight from London to Buenos Aires takes about 14 hours. The two cities are 11,137 km (6,920 miles) apart in a straight line, measured between Heathrow (LHR) and Ezeiza (EZE).

This is a long-haul route. If there is no direct flight on your dates, a connection through a hub usually adds 2–6 hours to the journey.

The estimate assumes an average speed of about 830 km/h plus around 35 minutes for taxiing, take-off and landing. Real schedules vary with the airline, aircraft, route and winds – heading west into the jet stream, flights often take a little longer than this. Check your booking for the exact time.

Time difference and arrival time

Buenos Aires is 3 hours behind London right now. A flight leaving London at 10:00 local time lands at about 21:00 local time in Buenos Aires. With a 3h shift, expect some jet lag: as a rough guide the body adjusts by about an hour a day, and flying west (as on this trip) is usually easier than the other way.

Why arrival times look strange

Airline schedules always show local times: departure in the departure city’s time and arrival in the arrival city’s time. Fly east and you “lose” hours – a 7-hour flight from New York to London leaving at 19:00 lands at 07:00 the next morning. Fly west and you gain them, which is how you can land in Los Angeles almost at the same clock time you left Tokyo. This calculator handles the time zones and daylight saving time for you.

How the flight time estimate works

In estimate mode the calculator measures the great-circle distance between the two cities – the shortest route over the Earth’s surface – and assumes an average speed of about 830 km/h (515 mph), plus around 35 minutes for taxiing, take-off and landing. That gives a good guide for a non-stop flight. Real schedules vary with the airline, aircraft, winds and route: flights heading east with the jet stream are often quicker than the same trip heading west, so always check your booking for the exact time.

Frequently asked questions

How long is the flight from London to Buenos Aires?

A direct flight from London to Buenos Aires takes about 14 hours. This is an estimate based on the distance; airline schedules can be shorter or longer depending on the route and winds.

How far is Buenos Aires from London?

The straight-line (great-circle) distance between London and Buenos Aires is about 11,137 km, or 6,920 miles.

What is the time difference between London and Buenos Aires?

Buenos Aires is 3 hours behind London at the moment.

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