KEY POINTS
  • Most of the cards offer enticing sign-up deals that give you extra miles for purchases made.
  • While cards waive the annual fee in the first year, after that you'll face an average yearly fee of $127 regardless of whether you use the card.
  • Nevertheless, benefits such as discounted or free companion tickets can make the cost worth it for frequent travelers.

If the remainder of your summer plans includes taking to the skies, don't be surprised if you encounter an offer for an airline credit card.

With enticing benefits, these cards can make future flights less expensive as you earn air miles for purchases made on the card. Yet if you don't use them right, they'll only end up costing you.