A "miles card" is a type of credit card that offers rewards in the form of airline miles. When you use the card for purchases, you earn points that can be exchanged for airline tickets or other travel-related benefits. Full definition
Of course, there are a variety of airline mile cards out there, but be careful as many of them have restrictive rules which make actually redeeming the miles difficult. (freefrombroke.com)
The following summary breaks down all the top air miles cards for frequent flyers, along with each card's mileage features and introductory rates. (cardrates.com)
Your points don't expire as long as you keep your account open — but be careful about canceling a generic miles card if you have unused miles. (creditcards.com)