New passenger services, due to be launched from Carlisle Lake District Airport on June 4, have been postponed until September 3.
The airport announced the delay on May 29, less than a week before services to Belfast, Dublin and London Southend were due to start, saying it did not have enough air traffic controllers to cover the scope of the operation.
The flights were due to be operated by Loganair, which has said passengers booked on the affected services would be offered refunds or alternatives flights from Glasgow or Manchester.
Kate Willard, the Stobart Group’s head of projects said: “This major project to launch air services from a new airport relies not only on the airport’s infrastructure being complete but also on a full complement of essential operational staff being in place.
“Regrettably, changing circumstances around staffing means that this cannot be completed in time for the airport to receive scheduled flights as planned, despite every possible human effort being made.”
Jonathan Hinkles, managing director of Loganair commented: “We’re working hard to inform all passengers and we completely appreciate the frustration which disruption to travel plans can cause.
“We have taken the decision to delay to September to provide the greatest level of certainty that the new target date for the introduction of services will be met, allowing the travelling public to book with confidence.”