jets flying against cloudy blue sky
jet following the lead of jet in front
jet flying under two jets 
The jet is in the sky.
the airplanes in the sky
the airplane in mid air 
the clouds in the sky
the blue sky with clouds
wing on the jet plane 
Plane in the air
Plane is in the air
Airplane in the air
Airplane is in the air
Fighter plane in the air
Fighter plane is in the air
Fighter jet in the air
Fighter jet is in the air
Plane up in the air
Plane is up in the air
a formation of jets flying through a cloudy sky