Gestair

Gestair is a business aviation company headquartered in Madrid, Spain. Its website lists Spain and Malta as its locations. It now trades as Gestair by Boost Air Group, a group formed in 2026 that combines Gestair with the maintenance companies Brok-Air and ATS Aviation.

The company offers private jet charter, aircraft management for owners, and a jet card product called Gestair One. It also provides line maintenance and continuing airworthiness management (CAMO). Its maintenance division works from hangars at Adolfo Suárez Madrid-Barajas Airport, which the company puts at 23,000 square metres. A separate planning unit handles flight dispatch, trip support, fuel management and post-flight services.

Gestair's website groups its charter aircraft by range, from short-range to ultra-long-range jets, without listing each type. A January 2024 news item on the site cited a managed fleet of more than 35 aircraft. AIN reported in 2026 that Gestair added a Cessna Citation Mustang to its charter fleet. AIN also reported that Gestair runs a business aviation FBO at Barcelona El Prat through a joint venture with Assistair.

For flyers, Gestair combines charter, management and in-house maintenance in one Spanish group, which suits owners who want management and maintenance from the same provider. The website does not state ARGUS, Wyvern or IS-BAO audit status.