Vstall of an Airbus 330 varies with weight however, at 38000 feet that speed could be close to 200 KTS indicated.
The average cruising speed of an airbus varies by the type of the aircraft, it is generally between 450-537 mph. Again the same can be said for the cruising altitude depending on aircraft and route, as a general rule it is between 36,000ft and 39,000ft (the service ceiling (ie the max cruising altitude) of some airbus aircraft is 41,000ft). Hope this helps.
The A380 has a cruising speed of Mach 0.85 (about 900 km/h or 560 mph at cruising altitude), its maximum design speed is Mach 0.96.
A320- Max cruising speed 903km/h (487kt)
The cruising speed of an Airbus A320 at 36,000 feet is 511 mph.
Max cruising speed is 487 knots, economy(most efficient) cruising speed is 454 knots.
The cruising speed of an A 380 is 587 mph. This is 945 km/h.
The Airbus A380 maximum cruising speed is Mach 0.88 (670 mph). Long distance cruising speed is typically M0.85 (650 mph). max cruising speed = .85 MACH max design speed = .96 MACH
The A340-600 cruising speed is 543 mph. This is 881 km/h.
The maximum operating speed of the Airbus A300 is 541 mph at 35,000 ft. The cruising speed is 515 mph.
The cruising speed is 541 miles per hours. with a maximum cruising speed of 568 mph.
The cruising speed of an A320 is 511 mph. This marginally slower than other Airbus aircraft.
About Mach 0.84 for an A380 or Mach 0.80 for an A320