Originally Posted by
Ancien Maestro
It would be a miracle if a program to cover every point loyalty program...
Until c 2005 Diners Club in the USA did offer transfers to all of the mainline US based carriers: AA, AS, CO, DL, NW, UA, US plus a dozen others. However, when Diners switched from its own network to MasterCard four airlines left the program (CO, NW, UA, US). It's still a good program, and in some ways I prefer it over Membership Rewards, but they are not accepting new card applications.