Air France-KLM said on Wednesday that its unit revenues had jumped strappingly in the month of June, as expansion in both passenger and cargo activity outpaced capacity, which has on purpose been held down during the economic depression.

Passenger traffic went up by 4.7% and the load factor, which measures that how well an airline fills its planes, increased 3.5 points to 83.8%, the Franco-Dutch airline said.

Unit revenue for each available seat kilometer, not including currency, jumped strongly in contrast to June 2009, which was driven by the financial system and premium classes, a company statement said.

In long-haul, the ascending was particularly marked on the Asia, North America and Latin America networks.

Cargo saw a 0.8% boost in traffic and the load factor jumped 2.4 points to 67.7% as capacity fell 2.8%.

Enhanced unit revenues reflected both a fundamental recuperation in demand and attempts to keep a cap on capacity, said the group which operates Air France and KLM networks disjointedly.

Delta Air Lines, which is the world's leading airline and an enterprise partner with Air France on the Atlantic, posted a 4.2% increase in June traffic.

The airlines have expanded the business enterprise that shares revenues and expenditure on transatlantic routes to Alitalia.