Travel reward credit cards are those that offer free miles and other services for using the card to buy airline tickets and other specific products. These cards are useful for people who travel frequently and for businesses that have to send employees for business tours. Travel reward cards are profitable for all the parties involved; the airline company, the consumer, and the credit card issuer. This is because the airline industry gets loyal customers, so do the issuers and consumers get free miles when they use the card to buy airline tickets.