不是12个月么,什么时候变6个月?如果之前没帐户是31天 To request mileage credit for flights operated by United, United Express, Continental Airlines, Continental Express, Continental Micronesia and Continental Connection flown in the last twelve months, provide the required information below and select Submit. For missing mileage credit requests for flights on partner airlines or transactions with non-airline partners, please visit the main Request Mileage Credit page for instructions. Important notes about mileage credit requests Wait at least 7 days from the flight date for your mileage to post. Requests may be submitted up to 12 months from todays’ date. New MileagePlus® members may request mileage credit for flights completed on United, United Express, Continental and COPA up to 31 days prior to their enrollment date. For a $25 USD fee, new members may request mileage credit for flights beyond 31 days and up to six months prior to their enrollment date. Contact the MileagePlus Service Center to process this request.
Mileage can only be requested for flights flown within the previous 6 months . This ticket was flown more than six months ago and is no longer eligible for credit.