I've been looking a lot too, and I have found no results, however I know that the very similar model the a320 has a typical cruising altitude for long haul flights of FL390. (39,000 feet)
Since the a319 is very similar but smaller, I would suggest around FL360 for a typical cruising altitude, but I am not a professional.
The cruising altitude also heavily depends on the length of the flight. If it is a shorter flight, the lower recommended cruising altitude etc.
And the temperature and weather is also a contributing factor, but FL360 would be a safe bet as to the a319's typical cruising altitude.
Hope I could help.
35,000ft is the typical cruising altitude.
Max cruising speed is 487 knots, economy(most efficient) cruising speed is 454 knots.
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 Airbus A319 entered service with Swiss Air in April 1996.
The fuel consumption of airbus A319 aircraft is 0.07 KM per liter.
The maximum range of an Airbus A319 with 124 passengers is 3,600 nautical miles.
Usually, all commercial jet aircraft cruise between 30000 and 40000 feet.
Airbus lists the maximum fuel load for the A319 as 7885 gallons.
The standard seating plan of the Airbus A319 is for 24 rows of six seats, three seats either side of a central aisle.
170 mph
The Airbus A319 was built in May 22, 1992 in order to better compete with other airplane manufacturers such as McDonnell Douglas, Boeing, and other small manufacturers.
Vstall of an Airbus 330 varies with weight however, at 38000 feet that speed could be close to 200 KTS indicated.