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.