Imperial Airways was the early British commercial long range air transport company, operating from 1924 to 1939 and serving parts of Europe but especially the Empire routes to South Africa, India and the Far East. There were local partnership companies; Qantas (Queensland and Northern Territory Aerial Services Ltd) in Australia, and TEAL (Tasman Empire Airways Ltd) in New Zealand.
The first commercial flight was in April 1924, when a daily London-Paris service was opened. Additional services to other European destinations were started throughout the summer. The first new airliner was commissioned by Imperial Airways in November 1924. In the first year of operation the company carried 11,395 passengers and 212,380 letters. In April 1925, The Lost World (a recent blockbuster film) was shown to the passengers on the London-Paris route. This was the first time that a film had been screened for passengers on a plane.
The extension of service to the British Empire (Empire Services) was not begun until 1927 when, with the addition of six new aircraft, a service was instituted from Cairo to Basra. but the first service from London for Karachi did not start until 1929 using newly purchased Short S.8 Calcutta flying boats, even then the passengers were transported by train from Paris to the Mediterranean where the Short flying boats were. In February 1931 a weekly service between London and Tanganyika was started as part of the proposed route to Cape Town and in April an experimental London-Australia air mail flight took place; the mail was transferred at the Netherlands East Indies, and took 26 days in total to reach Sydney. The purchase of eight Handley Page HP.42 four-engined airliners boosted the range of services, in 1932 the service to Africa was extended to Cape Town.
In Australia in 1934 Imperial and Qantas (Queensland and Northern Territory Aerial Services Ltd) formed Qantas Empire Airways Limited to extended services in Southeast Asia. But it was not until 1937 with the Short Empire flying boats that Imperial could offer a real through service from Southampton to the Empire. The journey to the Cape consisted of flights via Marseille, Rome, Brindisi, Athens, Alexandria, Khartoum, Port Bell, Kisumu and onwards by land-based craft to Nairobi, Mbeya and eventually Cape Town. Survey flights were also made across the Atlantic and to New Zealand. By mid-1937 Imperial had completed its thousandth service to the Empire.
To help promote use of the Air Mail service, in June and July, 1939, Imperial Airways participated with Pan American Airways in providing a special "around the world" service with Imperial carrying the souvenir mail eastbound over the Foynes, Ireland, to Hong Kong portion of the New York to New York route. Pan American provided service from New York (departing on June 24) to Foynes (via the first flight of Northern FAM 18) and Hong Kong to San Francisco (via FAM 14), while United Airlines carried it on the final leg from San Francisco to New York where is arrived on July 28.