Part of United's plan to cut capacity is to replace large planes on some flights with smaller regional jets.
United said it would cut capacity by 8 percent.
Industry analysts said airlines in the United States would probably cut capacity by at least 10 percent.
The carrier said it would cut capacity by 27 percent and reduce its fleet to 79 planes.
The move is a further effort to cut excess capacity and raise profits.
The stand has instead been refurbished, cutting capacity from 28003 to 26,272.
It has gotten other countries to agree on some vague goals for cutting capacity that will probably not have much impact.
Almost every domestic airline intends to cut capacity further next year.
Opel announced back at the beginning of 2009 that it intended to cut capacity in Europe by 20%.
Air France also plans to cut capacity by 7 percent and has put off buying seven aircraft.