- Cheapest roundtrip flight
- from€756
- Fastest outbound flight
- Fastest inbound flight
- Flight distance
- 11,141 km
- Time difference
- Airports in London
- Heathrow
- Gatwick
- Stansted
- Luton
- City
- Southend
- Airports in Buenos Aires
- Ezeiza International Airport
- Jorge Newbery
Flight schedule from London (LON) to Buenos Aires (BUE)
Select a travel date in the flight schedule for the route from London (LON) to Buenos Aires (BUE) and compare affordable flight deals.
offers
Active filtersnone
Matching outbound flightsLON–BUE · 7 of 7
fromto
dep.arr.
durationstopovers
- 12 – 18 October 2026
- 19 – 25 October 2026
- 26 Oct – 1 Nov 2026
- LHREZE1 stopover
- LHREZE1 stopover
- LHREZE1 stopover
- LHREZE1 stopover
- LHREZE1 stopover
- LHREZE1 stopover
- LHREZEnon-stop
Tips and tricks to help you find cheap flights from London to Buenos Aires
Favourite airline: Air Europa
63 % of travellers choose to book flights on this route with Air Europa, ITA and KLM.
Air Europa
32 %
ITA
19 %
KLM
12 %
Important flight information
Frequently Asked Questions (FAQ)
How long is the flight from London to Buenos Aires?
The route from London to Buenos Aires is served by connecting flights with one stop. These typically take around 22 hours 35 minutes, depending on the layover duration and the connection chosen. If travel time is important to you, pay particular attention to connections with a short stopover.
Are there direct flights from London to Buenos Aires?
No, there are currently no direct flights from London to Buenos Aires. However, you can reach Buenos Aires with a connecting flight via one stop. Allow extra travel time for the connection and pay particular attention to the length of the layover.
Which airlines fly from London to Buenos Aires?
Flights from London to Buenos Aires are available with one stop, operated by, among others, LATAM Chile (via Sao Paulo) and United Airlines (via Houston - George Bush). When comparing options, look beyond the price and consider the total travel time and the length of the layover.
Which airline is most commonly chosen for flights from London to Buenos Aires?
For flights from London to Buenos Aires, offers from British Airways, American Airlines and ITA are chosen most frequently. This reflects which airlines have been particularly popular with users on this route over the past year. Whether an airline suits you also depends on price, flight times, baggage and possible stopovers.
In which months do idealo users most frequently search for flights from London to Buenos Aires?
Flights from London to Buenos Aires are most frequently searched for travel in July, November and December. If you are planning to fly in one of these months, it may be worth comparing offers early. Outside the most popular months, you may find more choice or cheaper connections.
Which departure days are most popular for flights from London to Buenos Aires?
For flights from London to Buenos Aires, departures on Sunday, Thursday and Saturday are particularly in demand. Demand can be higher on popular travel days, so it is worth checking alternative departure days. You may find more suitable flight times or cheaper offers.
How long is the typical stay on trips from London to Buenos Aires?
For trips from London to Buenos Aires, stays of 35, 14 and 17 days are most commonly searched. These trip lengths are particularly popular with idealo users on this route.