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Boom Technology is a startup company aiming to create a 55-passenger civilian supersonic transport aircraft to fly up to Mach 2.2 (1,262 kn; 1,452 mph; 2,337 km/h). Conceptually it could fly from New York City to London in 3 hours and 24 minutes at a proposed round trip cost of $5,000. The plane could seat 55 passengers in a higher-density configuration.

Japan Airlines Co., Ltd. (JAL) (日本航空株式会社, Nihon Kōkū Kabushiki-gaisha, TYO: 9201, OTC Pink: JAPSY), is the flag carrier airline of Japan and the second largest in the country behind All Nippon Airways. It is headquartered in Shinagawa, Tokyo, Japan; and its main hubs are Tokyo's Narita International Airport and Tokyo International Airport (Haneda Airport), as well as Osaka's Kansai International Airport and Osaka International Airport. JAL group companies include Japan Airlines, J-Air, JAL Express, Japan Air Commuter, Japan Transocean Air and Ryukyu Air Commuter for domestic feeder services; and JAL Cargo for cargo and mail services. JAL group operations include scheduled and non-scheduled international and domestic passenger and cargo services to 220 destinations in 35 countries worldwide, including codeshares. The group has a fleet of 279 aircraft. In the fiscal year ended 31 March 2009, the airline group carried over 52 million passengers and over 1.1 million tons of cargo and mail. Japan Airlines, J-Air, JAL Express, and Japan Transocean Air are members of the Oneworld airline alliance network. JAL was established in 1951 and became the national airline of Japan in 1953. After over three decades of service and expansion, the airline was fully privatised in 1987. In 2002, the airline merged with Japan Air System, Japan's third-largest airline and became the sixth largest airline in the world by passengers carried. Japan Airlines is currently an official sponsor of Japan Football Association, Japan national football team, Shimizu S-Pulse and Consadole Sapporo. All Nippon Airways, the largest airline in Japan, is JAL's main competitor.

Aérospatiale/BAC Concorde () is a British-French turbojet-powered supersonic passenger jet airliner that was operated until 2003. It had a maximum speed over twice the speed of sound at Mach 2.04 (1,354 mph or 2,180 km/h at cruise altitude), with seating for 92 to 128 passengers. First flown in 1969, Concorde entered service in 1976 and continued flying for the next 27 years. It is one of only two supersonic transports to have been operated commercially; the other is the Soviet-built Tupolev Tu-144, which operated in passenger service from 1977 to 1978. Concorde was jointly developed and manufactured by Sud Aviation (later Aérospatiale) and the British Aircraft Corporation (BAC) under an Anglo-French treaty. Twenty aircraft were built, including six prototypes and development aircraft. Air France (AF) and British Airways (BA) were the only airlines to purchase and fly Concorde. The aircraft was used mainly by wealthy passengers who could afford to pay a high price in exchange for Concorde's speed and luxury service. For example, in 1997, the round-trip ticket price from New York to London was $7995, more than 30 times the cost of the cheapest option to fly this route. The original program cost estimate of £70 million met huge overruns and delays, with the program eventually costing £1.3 billion. It was this extreme cost that became the main factor in the production run being much smaller than anticipated. Another major factor impacting the viability of all SST programs was in how supersonic route options were eventually limited to ocean-crossing only to prevent sonic boom disturbance on populated areas. With only 7 airframes each being operated by the British and French, the per-unit cost were impossible to recoup, so the French and British governments absorbed the airframe and development costs. British Airways and Air France were able to operate Concorde at a profit, in spite of very high maintenance costs, because of this steep government subsidy. British Airways paid £1 per aircraft, so its entire Concorde fleet cost the airline £7. Among other destinations, Concorde flew regular transatlantic flights from London's Heathrow Airport and Paris's Charles de Gaulle Airport to John F. Kennedy International Airport in New York, Washington Dulles International Airport in Virginia, and Grantley Adams International Airport in Barbados; it flew these routes in less than half the time of other airliners. Concorde's name, meaning "harmony" or "union", was chosen to reflect the co-operation on the project between the United Kingdom and France. In the UK, any or all of the type are known simply as Concorde, with no definite article the. Concorde won the 2006 Great British Design Quest organised by the BBC and the Design Museum, beating other well-known designs such as the BMC Mini, the miniskirt, the Jaguar E-Type, the London Tube map and the Supermarine Spitfire. The type was retired in 2003, three years after the crash of Air France Flight 4590, in which all passengers and crew were killed. The general downturn in the commercial aviation industry after the September 11 attacks in 2001 and the end of maintenance support for Concorde by Airbus (the successor company of both Aérospatiale and BAC) also contributed.