Lunn Poly was, at one time, the largest chain of travel agents in the United Kingdom. The company originated from two successful travel agencies established in the 1890s: The Polytechnic Touring Association and Sir Henry Lunn Travel. Both firms were acquired in the 1950s by the British Eagle airline group, and combined into Lunn Poly during 1965. It became a nationalised industry as part of the Transport Holding Company (THC).In June 1971, Sunair bought Lunn Poly from the THC for £175,000.