One daily return flight between Pittsburgh, Pennsylvania, and London-Gatwick and another between Pittsburgh and Frankfurt were being suspended in May, the airline said in a statement.

The planes were needed for the Civil Reserve Air Fleet to move troops to and from the Middle East, it said.

"These May adjustments in Pittsburgh are a result of our commitment of widebody aircraft to the CRAF program activated due to the war in Iraq, which has lasted longer than anticipated," said US Airways marketing and planning senior vice president Ben Baldanza.

Both routes were scheduled to return to normal June 1.

SPACE.WIRE