Major airlines are offering top - up cards this year for their mileage dining cards . Dining cards are an easy way to keep your frequent flight schedule active . There are some annoying downsides to the programs , though : One is that you can often only earn credit once per month ( or a similar limit ) at any one restaurant . Alaska , Delta , United , Southwest and US Airways are all participating .
Major airlines are offering top - up cards this year for their mileage dining cards . Dining cards are an easy way to keep your frequent flight schedule active . Alaska , Delta , United , Southwest and US Airways are all participating .