11.   And not all attempts at dodging higher fares are successful.

12.   At the same time, Southwest passengers probably would have to pay higher fares.

13.   Besides straining the passenger capacity at rival airlines, a prolonged strike would probably lead to higher fares along routes dominated by American, travel agents say.

14.   A drop in capacity by itself usually is enough to allow airlines to charge higher average fares.

15.   All carriers, they said, have been enjoying higher average fares amid a worldwide recovery in the airline market.

16.   Airlines are also benefiting from healthy economies worldwide, which are spurring higher fares and more business travel.

17.   Airlines are also benefiting from strong economies worldwide, which are spurring higher fares and more business travel.

18.   Airlines are benefiting from strong economies worldwide, which are spurring higher fares and more business travel, said Timothy Ross, an analyst at SBC Warburg Inc.

19.   All budget cuts -- state, city and federal -- are collectively pushing the fare higher.

20.   Business people are most likely to pay higher fares for last-minute travel and first- or business-class seats that command premium prices.