Flightline was an airline based in Southend-on-Sea, England. It operated branded wet lease, ad hoc and contract passenger and freight charter services, as well as VIP flights and aircraft sales and maintenance. Sub-services were flown for major airlines in Europe as required. Its main bases' were London Southend Airport. The company held a United Kingdom Civil Aviation Authority Type A Operating Licence, and was permitted to carry passengers, cargo and mail on aircraft with 20 or more seats. Flightline operated up to 14 flights a day between Aberdeen (ABZ) and Scatsta in the Shetland Isles (SCS) on behalf of Royal Dutch Shell and other members of the IAC (Integrated Aviation Consortium). Offshore workers were flown to Scatsta Airport and then transferred onto helicopters to several oil platforms, however this contract was due to end in February 2009.