11.   Passenger airlines have made Web-only discounts a staple for leisure and last-minute travelers.

12.   Passenger airlines, too, are interested in it.

13.   Some cargo airlines have also added surcharges, although most domestic passenger airlines, wary of raising ticket prices further, are absorbing the cost.

14.   Some folks say it was the oldest scheduled passenger airline in the country.

15.   The arrangement is much narrower than the package offered in recently by three passenger airlines, United, American and US Airways.

16.   The postal service uses both passenger airlines and cargo aircraft to move the millions of pieces of mail stamped for delivery each day.

17.   There is no passenger airline in business that refuses to fly children, according to Wascom.

18.   They say Delta should receive the new rights only if the administration decides to select a passenger airline.

19.   UPS hopes to sell ADS-B to passenger airlines, cargo carriers and corporate and private aircraft owners around the world.

20.   UPS appears to be alone in doing such total conversions, although some passenger airlines take out seats and fly a little cargo now and then.