Douglas DC-4s equipped the airline during World War Two and were used for domestic services early in 1946. The type was subsequently replaced by DC-6s.

Самолёты на фотографии: Aircrafts on the photo: Douglas DC-4 / C-54 / R5D Skymaster - СШАUSA - 1942

Caravelle Jet Mainliner became the promotional name for the 20 French-designed airliners purchased from Sud-Aviation.

Самолёты на фотографии: Aircrafts on the photo: Sud-Est Caravelle / SE.210 - ФранцияFrance - 1955

United ordered seven Boeing 377 Stratocruisers and used them principally on the Hawaii route. Six were subsequently sold to BOAC.

Самолёты на фотографии: Aircrafts on the photo: Boeing C-97 / Model 377 Stratocruiser - СШАUSA - 1944

A stylised ‘U’ identifies all United Airlines aircraft, this view showing the tails of a Boeing 757 (foreground), 727 and 737 parked on the ramp at Chicago O’Hare.

Самолёты на фотографии: Aircrafts on the photo: Boeing Boeing 727 - СШАUSA - 1963Boeing Boeing 737-300 - СШАUSA - 1984Boeing Boeing 757 - СШАUSA - 1982

The Boeing 727 was UAL’s mainstay on the short and medium-haul routes and by the mid-1980s more than 150 were in service. Some 20 years separate the two examples pictured and serve to highlight the change in livery.

Самолёты на фотографии: Aircrafts on the photo: Boeing Boeing 727 - СШАUSA - 1963

The Boeing 727 was UAL’s mainstay on the short and medium-haul routes and by the mid-1980s more than 150 were in service. Some 20 years separate the two examples pictured and serve to highlight the change in livery, the latest scheme being shown here.

Самолёты на фотографии: Aircrafts on the photo: Boeing Boeing 727 - СШАUSA - 1963

April 1992 and Boeing pose four different aircraft awaiting delivery to UAL. Clockwise from the left: 737-500, 747-400, 767-300ER and a 757-200.

Самолёты на фотографии: Aircrafts on the photo: Boeing Boeing 737-300 - СШАUSA - 1984Boeing Boeing 747-400 - СШАUSA - 1988Boeing Boeing 757 - СШАUSA - 1982Boeing Boeing 767 - СШАUSA - 1981

Another British type in United Express service is the Jetstream Super 31, N487UE being pictured taxiing out at JF Kennedy in front of a Boeing 747-400.

Самолёты на фотографии: Aircrafts on the photo: Boeing Boeing 747-400 - СШАUSA - 1988Handley Page/BAe Jetstream / H.P.137 - ВеликобританияUnited Kingdom - 1967

Air Wisconsin/United Express BAe ATPs with a BAe 146 during a ‘bank’ at O'Hare in August last year.

Самолёты на фотографии: Aircrafts on the photo: BAe ATP - ВеликобританияUnited Kingdom - 1986BAe BAe-146 / RJ - ВеликобританияUnited Kingdom - 1981

Following the purchase of Capital Airlines, Vickers Viscounts' donned UAL colours and became an important type with the airline.

Самолёты на фотографии: Aircrafts on the photo: Vickers Viscount - ВеликобританияUnited Kingdom - 1948

Douglas DC 7 N6322C ‘Mainliner Waipahu’ of UAL over Hawaii. This was one of 57 of the type purchased hy United and was essentially a direct development of the DC-6B.

Самолёты на фотографии: Aircrafts on the photo: Douglas DC-7 - СШАUSA - 1953

Revolutionary when it appeared, the Boeing 247 was ordered by UAL, 59 of the first 60 being completed for the airline. This preserved example carries the early grey colour used by all UAL aircraft until 1940 when the scheme was changed to blue and white.

Самолёты на фотографии: Aircrafts on the photo: Boeing Model 247 - СШАUSA - 1933

Salvaged from a dump in Alaska in 1964, this Boeing 80A was rebuilt to display standard and is now on display at the Museum of Flight in Seattle, Washington. It carries the colours of Boeing Air Transport Inc which became part of the United Aircraft & Transport Co.

Самолёты на фотографии: Aircrafts on the photo: Boeing Model 80 - СШАUSA - 1928

United began taking delivery of the new, smaller Boeing 737-500 in 1991-92 and N922UA is one of the batch and is seen at Chicago O’Hare.

Самолёты на фотографии: Aircrafts on the photo: Boeing Boeing 737-300 - СШАUSA - 1984

A replica of the Wright J-4-powered Swallow biplane, five of which were operated by Varney Air Lines on US Mail contracts in the late-1920s. It is generally accepted that this was the first aircraft operated by the company that was to emerge as United Airlines.

Самолёты на фотографии: Aircrafts on the photo: Swallow New Swallow - СШАUSA - 1924