If you plan on traveling over the holidays, you might get another headache if you’re going through Chicago. It has been announced that over 400 workers plan to go on strike next week at O’Hare International Airport.

Service Employees International Union Local 1 officials said earlier today that they plan to walk off the job on Tuesday, Nov. 29.

Roughly 500 workers said they would go on strike after a vote last week. The workers are trying to organize with the union’s help. They work mostly for the private contractors and include baggage handlers, cabin cleaners, janitors and wheelchair attendants.

During a press conference Monday morning, an O’Hare employee spoke on behalf of airport workers, calling on United Airlines and other carriers to “take responsibility and stand up for good wages at O’Hare.”

They are looking for $15 per hour.

“We should not have to live paycheck by paycheck.” The woman said that she makes $11.50 an hour for a job that used to pay $22.50.