Flight attendants picketing at Chicago's O'Hare Airport for better contract

CHICAGO (CBS)-- Hundreds of flight attendants were expected to picket at O'Hare Airport on Tuesday to demand better pay and working conditions for their industry.

This is part of a national effort. Similar pickets happened across the country and even in the U.K. and Guam on Tuesday. 

They represent three different unions and work for several airlines, including Southwest, American, and United. Each of the unions is negotiating with the airlines and pushing for fair contracts.

They're demanding to be paid more for their hours at work, a significant change from how the industry currently compensates by paying essentially when the aircraft is in motion.

The negotiations impact a total of 100,000 flight attendants

This picket is happening across 30 airports.