First airlines raised ticket prices by adding a fuel surcharge. Now, some will be charging passengers more for extra baggage.

Another airline will soon be charging passengers for checking extra bags when they travel within the U.S. United led the charge by assessing a $25 fee for a second bag. Now, U.S. Airways plans to do the same.

“I try to travel as light as possible,” says passenger Mathew Brack. “I mean if worst comes to shove, I’ll pay it if I have to."

"It's not fair to make you pay to have an extra bag," says Amy Brack.

United says its surcharge has everything to do with increasing gas costs. The new policy applies to all travel taken within the U.S. on or after May 5th.

United Airlines’ business travelers, like Ray Kaminski, are exempt. "I think everybody should have to pay. Even when I fly on vacations I really don't hesitate on paying the extra. It’s not gonna bother me all that much."

United tells Channel 6 News the reason business travelers are exempt is because those passengers generally pay more for their tickets up front.

There are airlines that are holding off on charging customers more for packing more. At Northwest Airlines, you can still check in two bags for no additional charge and it's definitely a relief to customers.

"I think that's very nice because that's a lot of luggage going on a plane if you get two per person,” says Northwest customer Pam Birge.

Southwest Airlines charges more for a third bag.