You'll also find that redeeming miles for flights on partner airlines is another option with these cards. (rewardexpert.com)
You can't transfer the miles you earn to any other frequent flyer program, though you can book flights on partner airlines. (rewardexpert.com)
Most airlines within the major alliances will allow you to use your mileage stash with that brand to book award flights on partner airlines. (creditcards.com)