Cartoon of a wide-eyed woman staring at a computer screen while booking a trip, packed luggage stacked beside her.

Airlines want to hide the real price of your ticket. Should the government let them?

Remember what booking a flight used to be like? You would spot a $99 fare, click it, and then meet the carrier-imposed surcharge. Then the mandatory fuel surcharge. Then, somewhere near the end, the taxes. By checkout, your $99 flight cost $180. In 2011, the Department of Transportation put a stop to it with the full-fare rule, which says the price an airline shows you has to be the price you pay, taxes and fees included, and that the total has to be the most prominent number in the ad. The airlines went to court to kill the rule and lost, and travelers have shopped with confidence ever since. Now that standard is back on the table. The DOT has proposed letting airlines display each piece of a fare just as prominently as the total, and it is separately asking whether the rule should be repealed outright, which would allow advertised fares that leave out taxes and mandatory fees altogether. The department calls the current requirement unnecessarily prescriptive and raises legal questions about it. Consumer advocates answer that a price you cannot actually buy at is not a price.