Delaware will be the only state without commercial airline service after Frontier Airline's exit

Frontier Airlines is ending its service to and from the New Castle Airport, the airline confirmed Friday to The (Delaware) News Journal, part of the USA TODAY Network.After Frontier completes its final flight on June 6, Delaware will once again be the only state without commercial airline service."Sufficient demand did not materialize to support the service," Frontier spokesperson Jennifer de la Cruz said in a statement."We are continually evaluating our routes and (the New Castle Airport) will certainly remain in the consideration set for potential service in the future."Delaware River and Bay Authority spokesperson Jim Salmon in a statement said DRBA, which operates the airport, is "disappointed" with Frontier's decision but continues to believe commercial air service "can and will succeed" at the airport.HOW WILL TRAVELERS FARE?:JetBlue tried, but Spirit said it wants FrontierKNOW BEFORE YOU BOOK:Here's a refresher on those basic economy plane ticketsThis is the second time Frontier has left Delaware.