Berlin Tegel Airport used the airport as a diversion airfield before. Initially, all British Airways services from Tegel—with the exception of the daily non-stop service to London Heathrow—continued to be operated by BAC One-Eleven 500s. The daily London–Heathrow non-stop was operated with Hawker Siddeley Trident 2E/3B equipment based at that airport until the end of the 1975 summer season. (It subsequently reverted to a One-Eleven 500 operation.) From 1983, British Airways began updating its Berlin fleet. This entailed phasing out the ageing One-Elevens, which were replaced with new Boeing 737-200 Adv. During the second half of the 1980s, British Airways augmented its Berlin
Kalispell City Airport Kalispell City Airport Kalispell City Airport is a city-owned public-use airport located one nautical mile (1.85 km) south of the central business district of Kalispell, a city in Flathead County, Montana, United States. This airport is included in the FAA's National Plan of Integrated Airport Systems for 2009–2013, which categorized it as a "general aviation" facility. Kalispell City Airport covers an area of at an elevation of 2,932 feet (894 m) above mean sea level. It has one runway designated 13/31 with an asphalt surface measuring 3,600 by 60 feet (1,097 x 18 m). For the 12-month period ending August