Money WOW Air shrinks fleet by 20%, could cut service to U.S. cities November 28, 2018 Ben Mutzabaugh, USA TODAY Comments Off on WOW Air shrinks fleet by 20%, could cut service to U.S. cities WOW Air may be poised to drop more cities in the U.S. as it faces financial pressure. It will shrink its fleet by about 20% in 'restructuring.'