In the January 6, 1998 issue of PC Magazine there was a review of Web Travel Sites. From these various sites you can find air fares and other useful information.
American Express Travel
Alevo Travel
Biztravel.com
CNN Interactive's Travel Guide
Excite Travel by City.Net
Filfo
Global Online Travel
Internet Travel Network
Microsoft Exedia.com
Outtahere
Preview Travel
The Trip.com
Travelocity
TravelWeb
Uniglobe Travel Online
American Airlines
Weather