A new customer loyalty program at Raleigh-Durham International Airport will give travelers airline miles or other rewards for spending money to park, shop or dine at the airport.

Travelers register their credit or debit cards with the “Thanks Again” program to begin participating, RDU said Tuesday.

“During this season of thanks, RDU wants to thank its customers for flying through RDU,” Michael Landguth, the airport director, said in a statement.

Like hotels, airlines and grocery stores, airports are establishing loyalty programs in hopes of attracting and keeping customers and discouraging them from choosing another airport nearby. The Thanks Again network began in 2004 and now includes more than 170 airports in the United States.

Customers can register up to five cards at thanksagain.com/rdu and choose to receive gift cards, cash or airline miles, using a current frequent flyer number. Every dollar spent in RDU’s parking facilities, shops and restaurants is worth one mile or point.