Crowds have apparently been thick at US Airways' (UNKNOWN:LCC.DL) departure gates recently. For the second month in a row, the company has recorded its highest-ever load factor (i.e., the average "occupancy" of its aircraft) in its mainline flights for that particular month. The carrier released its latest set of operating metrics, which revealed that highest-ever June load factor of 88.2%. That was 1.7 percentage points higher than June 2012's figure.

The consolidated figure (including the carrier's Express offerings) was slightly lower, however. It came in at 87.8% for the month, which was also 1.7 percentage points higher than its year-ago equivalent.

Other statistics for consolidated operations also saw year-over-year increases. The total for revenue passenger miles was 6.5 billion, a 7% improvement over June 2012's 6.0 billion. Available seat miles grew by 5% to nearly 7.4 billion, while total boardings advanced by 6% to just over 5.7 million.

Fool contributor Eric Volkman has no position in US Airways. Nor does The Motley Fool. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.