A Frontier Airlines jetliner waits on a runway for departure from Denver International Airport, Sept. 1, 2023, in Denver. Frontier Airlines has settled a lawsuit filed on behalf of pilots who said the airline discriminated against pregnant and breastfeeding employees. In the settlement announced Tuesday, Dec. 5, 2023 Frontier will let pilots pump breast milk in the cockpit during “noncritical phases” of flights. (AP Photo/David Zalubowski, file)