Starting next week, passengers, but not flight crew, will be required to provide a negative result from a Covid test taken within 72 hours of departure.
Global business aviation saw a surge over the December holiday period which brought activity levels to within 11 percent of those of the previous December.
Brexit obstacles include restrictions for some flights by some private aircraft as well as other requirements such as traveling with pets, PrivateFly says.
The FAA released a rule clarifying the process for flight authorizations for flight testing beyond Mach 1, a step toward the return of supersonic flight.