In March, wheelchair attendants, skycaps, baggage handlers, checkpoint agents and ­cabin cleaners for two contractors at National Airport staged their first-ever walkout.

That means walking with an airline employee or skycap to her destination – but without anyone having to touch her, her cane or her guide dog.

For the first time, airport workers, including baggage handlers, skycaps, wheelchair attendants and aircraft cleaners, are making their own call for higher pay.