American Express Global Business Travel clients during the second quarter on average paid $156 for domestic U.S. hotel rates,

up 3 percent from a year earlier. The highest year-over-year hotel rate increases came in San Francisco (up 24 percent to $219), Philadelphia (up 14 percent to $196) and Seattle (up 12 percent to $166). Outside the United States, the average daily hotel rate paid by Amex customers increased 11 percent to $258.