Many airlines now charge travelers a fee for checking luggage. Before you book your flight, take a look at the airlines guide to see who’s charging what! Please note that discounts may apply depending on flyer specific factors, such as but not limited to; frequent flyer status, affinity credit card holders, people who check their bags in online, military, and international itineraries.
FlightStats website collects information from a large number of sources (governments, airlines, airports, reservation systems, and others) and presents an intuitive display of the data compiled.