London has six major airports: London City, London Gatwick, London Heathrow, London Luton, London Stansted and London Southend. You can find cheap flights to Buenos Aires from London, as well as cheap tickets to Buenos Aires from London, from all of them.
Airport information
Heathrow Airport (LHR)
Heathrow Airport is the busiest airport in the UK and in Europe and one of the busiest in the world. Located in the London Borough of Hillingdon, Heathrow is by far the largest of London's airports and considered the main gateway into the United Kingdom for non-European visitors. Heathrow has four terminals and two parallel runways.
Gatwick Airport (LGW)
London Gatwick Airport, also known colloquially as Gatwick Airport or simply Gatwick, is the second-busiest airport by total passenger traffic in the United Kingdom, after Heathrow Airport. At 29.5 mi (47.5 km) south of Central London, Gatwick is the eighth-busiest airport in Europe.
London City Airport (LCY)
London City Airport (IATA: LCY, ICAO: EGLC) is an international airport in London, England. It is located in the Royal Docks in the London Borough of Newham, approximately 6.2 mi (10 km) east of the City of London and a shorter distance east of Canary Wharf.
Main airlines for this route
Currently, there are no airlines that offer direct flights from London to Buenos Aires. These are the top 3 airlines offering flights from London to Buenos Aires: