Question: How far away from Xichang is the Chinese port that launched the most vehicles into space ?

text: Spaceport
Spaceports with achieved satellite launches

A spaceport or cosmodrome is a site for launching (or receiving) spacecraft, by analogy to seaport for ships or airport for aircraft. The word spaceport, and even more so cosmodrome, has traditionally been used for sites capable of launching spacecraft into orbit around Earth or on interplanetary trajectories. However, rocket launch sites for purely sub-orbital flights are sometimes called spaceports, as in recent years new and proposed sites for suborbital human flights have been frequently referred to or named 'spaceports'. Space stations and proposed future bases on the moon are sometimes called spaceports, in particular if intended as a base for further journeys. The term rocket launch site is used for any facility from which rockets are launched. It may contain one or more launch pads or suitable sites to mount a transportable launch pad. It is typically surrounded by a large safety area, often called a rocket range or missile range. The range includes the area over which launched rockets are expected to fly, and within which some components of the rockets may land. Tracking stations are sometimes located in the range to assess the progress of the launches. Major spaceports often include more than one launch complex, which can be rocket launch sites adapted for different types of launch vehicles. (These sites can be well-separated for safety reasons.) For launch vehicles with liquid propellant, suitable storage facilities and, in some cases, production facilities are necessary.
Spaceport Location Years ( orbital ) Launches to orbit or inter- planetary Launch vehicles ( operators ) Sources
Baikonur Cosmodrome , Baikonur/Tyuratam , Kazakhstan Kazakhstan 1957- > 1,000 R-7 / Soyuz , Kosmos , Proton , Tsyklon , Zenit , Energia
Cape Canaveral Air Force Station , Florida , USA USA 1958- > 400 Delta , Scout , Atlas , Titan , Saturn , Athena , Falcon 9
Vandenberg Air Force Base , California , USA USA 1959- > 700 Delta , Scout , Atlas , Titan , Taurus , Athena , Minotaur , Falcon 9 Vandenberg ,
Wallops Flight Facility , Virginia , USA ( see also MARS below ) USA 1961-1985 19 Scout 6 +13
Kapustin Yar Cosmodrome , Astrakhan Oblast , Russia Russia 1962-2008 85 Kosmos
Hammaguir French Special Weapons Test Centre , Algeria Algeria 1965-1967 4 Diamant A ( France ) Diamant
Plesetsk Cosmodrome , Arkhangelsk Oblast , Russia Russia 1966- > 1,500 R-7 / Soyuz , Kosmos , Tsyklon-3 , Rokot , Angara
San Marco platform , Broglio Space Centre , Malindi , Kenya Kenya 1967-1988 9 Scout ( ASI and Sapienza , Italy ) Broglio
Kennedy Space Center , Florida , USA USA 1967- > 170 17 Saturn , 134 Space Shuttle , 32 Falcon 9 , 3 Falcon Heavy Saturn , STS , F9
Woomera Prohibited Area , South Australia Australia 1967 , 1971 2 Redstone ( WRESAT ) , Black Arrow ( UK Prospero X-3 ) WRESAT , X-3
Uchinoura Space Center ( Kagoshima ) , Japan Japan 1970- 31 27 Mu , 3 Epsilon , 1 SS-520-5 M , ε , S
Guiana Space Centre , Kourou , French Guiana , France French Guiana 1970- 261 7 Diamant , 227 Ariane , 16 Soyuz-2 , 11 Vega see 4 rockets
Jiuquan Satellite Launch Center , China China 1970- 85 2 LM1 , 3 LM2A , 20 LM2C , 36 LM2D , 13 LM2F , 3 LM4B , 5 LM4C , 3 LM11 See 8 rockets
Tanegashima Space Center , Japan Japan 1975- 65 6 N-I , 8 N-II , 9 H-I , 6 H-II , 36 H-IIA see 5 rockets
Satish Dhawan Space Centre ( SHAR ) , Andhra Pradesh , India India 1979- 75 4 SLV , 4 ASLV , 50 PSLV , 13 GSLV , 4 GSLV Mk III List SDSC
Xichang Satellite Launch Center , China China 1984- 104 Long March : 6 LM2C , 5 LM2E , 11 LM3 , 25 LM3A , 42 LM3B , 15 LM3C See 6 rockets
Taiyuan Satellite Launch Center , China China 1988- 62 Long March : 16 LM2C , 2 LM2D , 2 LM4A , 25 LM4B , 15 LM4C , 2 LM6 See 6 rockets
Palmachim Air Force Base , Israel Israel 1988- 8 Shavit Shavit
various airport runways ( B-52 , Stargazer ) various 1990- 39 Pegasus ( Orbital Sciences Corporation ) Pegasus
Svobodny Cosmodrome , Amur Oblast , Russia Russia 1997-2006 5 Start-1