United's new checked bag fees go into effect

CHICAGO The Chicago-based airline is charging $15 for the first checked bag. The fee applies to people who purchased economy tickets on or before after June 13.

The second checked bag is still $25.

United isn't the only airline charging for checked bags. American Airlines and U.S. Airways are also charging domestic economy class travelers $15 for the first bag and $25 for the second bag. A similar fee goes into effect for Northwest Airline passengers on August 28.

Delta, Continental, JetBlue and Midwest airlines allow one checked bag per customer at no charge. All four charge domestic travelers $20-50 for the second bag.

Southwest Airlines lets passengers have two checked bags without cost.

All airlines have oversized bag policies that incur extra costs if the bag weighs 51 pounds or more.

Baggage Policies:
• United Airlines
• American Airlines
• US Airways
• Delta Airlines
• Northwest Airlines
• Midwest Airlines
• Southwest Airlines
• Continental Airlines
• Jet Blue