And flights that are available on short notice often require high fares.

The flights in the north, flown from Turkey, require 1,400 troops and 45 aircraft.

However, the erratic flight of the damaged B-17 required him to crawl and pull himself along.

Captain Rubin and the union argue that the flight requires a third pilot because it is longer than eight hours.

However, because of the speeds involved, flight requires the most energy per unit time.

Private and commercial flights require a permit for use of the landing strip.

"But the flight may require a pilot for all but the last few seconds."

Previous flights had required two days to dock with the station.

Hal thought he was able to appreciate the courage this flight must have required of them.

This flight of rhetoric perhaps requires a footnote or two.