Through March 15, Continental Airlines OnePass members are privy to a 25 percent bonus when converting American Express Membership Rewards points into miles. There is no limit, the more points you transfer the more you earn. It is necessary to register for this promotion. Simply go to http://onepass.continental.com and enter your OnePass number and promotion code 20006. This promotion is very similar to the Diners Club Rewards/OnePass offer. Hmmm, are these credit card programs uping the ante? We’ll only know if Membership Rewards offers a British Airways Executive Club conversion.