Here are some options, depending on the context:
General:
* Fleet: This is the most common and versatile option, suitable for a group of any type of aircraft.
* Squadron: This is specific to military aircraft, including jets.
* Formation: Used for aircraft flying in a coordinated pattern.
More specific:
* Swarm: For a large, fast-moving group of fighter jets.
* Wave: For a series of jets arriving in succession.
* Air show: For a group of jets performing at an air show.
Ultimately, the best option will depend on the specific context and the type of jets being referred to.