JetBlue responded that while she "was not denied boarding, the crew members politely asked if she could change. The customer agreed and continued on the flight without interruption."
The poll of 2,500 travelers by Airfarewatchdog.com found that 59 percent of respondents said airlines should have that authority. Thirty-three percent said no, and 8 percent had no opinion.
Some airlines may not have particular written rules pertaining to dress codes, but the issue could fall under more general rules.
Atlanta-based Delta Air Lines, for example, has language in its contract of carriage under "Refusal to transport" saying Delta may refuse to transport passengers when "the passengers conduct creates an unreasonable risk of offense or annoyance to other passengers."
The contract of carriage also states the airline can refuse to transport passengers for a number of other reasons, including a "malodorous condition," a passenger who is barefoot, someone one who appears to be intoxicated or under the influence of drugs, or someone with a contagious disease that may be transmissible to other passengers.