Delta Air Lines, Spirit Airlines and dozens of other airlines face nearly 40 class actions over their alleged failure to refund passengers amid the COVID-19 pandemic—and now, one plaintiffs lawyer wants them coordinated into multidistrict litigation.

Nicholas Coulson, of Liddle & Dubin in Detroit, who claims to be involved in 12 of the cases, filed a motion before the U.S. Judicial Panel on Multidistrict Litigation to coordinate the cases in Illinois or, as alternatives, Georgia or Florida. Coulson’s motion, filed Tuesday, seeks to coordinate 38 cases involving 21 domestic and foreign airlines.