11.   A few airlines offer connecting flights to Bratislava, the capital of Slovakia.

12.   A decade ago, the Canadian airline Wardair offered quality at reasonable prices with a single standard of cuisine and service throughout the plane and a Big Seat option.

13.   A small Pennsylvania airline is offering free round-trip seats to Elvis impersonators.

14.   Airlines also offer periodic sales that require almost immediate purchases even if travel is permitted weeks or months into the future.

15.   Airlines are increasingly offering incentives, including price discounts and bonus frequent flyer mileage, to customers who book on their online sites.

16.   Airlines are offering voluntary self-defense training in which attendants learn to take down a terrorist.

17.   Airlines now offer two kinds of discount tickets -- some sold to travel agencies and others directly to customers.

18.   Airlines offer Internet-only fares in hopes of persuading more passengers to book electronically because it saves the carriers money.

19.   Airlines will sometimes offer brief frequent flier sales.

20.   Airlines are offering a variety of promotions, including discounts or extra frequent flier miles, for booking on their Web sites.