They also get 500 bonus miles for checking in online.

Advantages: 12,500 bonus miles with the gold card; 15,000, platinum.

Advantages: 6,000 bonus miles with the platinum card; 15,000, world.

Some airlines even throw in bonus miles as a reward for transfers.

The travel manager's tougher task, however, is to ask employees to give back bonus miles.

Small businesses, in particular, are offering bonus miles as a way to get an edge on their competitors.

They also get 5,000 bonus miles for buying a land package.

United is also trying to win back customers with bonus frequent-flier miles.

Many passengers doubt that Eastern will survive long enough for them to spend their bonus miles.

After that game, 50 to 140 bonus miles were randomly assigned to all ten players in order to break ties.