Last month, almost 700 workers at Glasgow and Edinburgh airports threatened to walkout in disputes over pay.
Three separate disputes at Aberdeen airport, meanwhile, saw in excess of 140 workers vote on the prospect of strike action.
At Glasgow, nearly 400 workers employed by ICTS and Menzies Aviation have now backed a new pay offer, the Unite union has confirmed.
Elsewhere, a dispute involving a similar number of Edinburgh airport workers, also represented by Unite, has also been resolved.
