Airline passengers are about to get some relief from the aggravating — and often surprising — costs connected to flying.

The U.S. Department of Transportation's rules taking effect today are designed to eliminate unexpected baggage costs and advertised fares that turn into unspectacular deals once surcharges and fees are added to the price. 

One provision, which goes into effect on Thursday, strikes at the heart of marketing strategies heavily used by discount fliers like Spirit Airlines. which operates out of Atlantic City. It requires airlines to advertise the actual price passengers will be charged, including any mandatory government taxes, fuel surcharges or special fees. Many of those costs have been relegated to small print on advertisements and travel websites.

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