Frontier Airlines announced it will add 21 new cities and 85 new routes to the airline's network. By the summer of 2018, Frontier will operate 314 non-stop flights.

Frontier Airlines announced it will add 21 new cities and 85 new routes to the airline's network. By the summer of 2018, Frontier will operate 314 non-stop flights.

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Frontier Airlines Is Doubling In Size

Ultra-low cost carrier Frontier Airlines is doubling in size. The expansion, announced Tuesday, will add 21 new cities and 85 new routes to the airline's network. By the summer of 2018, Frontier will operate 314 non-stop flights. That's double what it flies today.