For passengers travelling between September 20, 2010 to October 31, 2010 and for tickets issued during the same period, Copa Airlines makes the 3rd bag to Lima. This promotion can be availed only on the route Washington Dulles (IAD) to Lima, Peru (LIM). Only economy class travelers can benefit from this scheme as it is not valid on only other class or on OnePass award tickets. The third bag which is free should not weight more than 501bs (23 kilos) or be larger than 62 linear inches "(1.58 meters).