United Mileage Plus® / Hilton HHonors Reward Exchange Suspended Effective immediately, requests to exchange United Mileage Plus miles for Hilton HHonors points and HHonors points for Mileage Plus miles through the HHonors Reward Exchange will not be accommodated. Exchange requests received by the Hilton HHonors Customer Service Center prior to 12:01 am Central Standard Time on March 21, 2003 will be processed, and no further exchanges will be accepted. We apologize for this situation.
