Allegiant announced new nonstop service from Melbourne Orlando International Airport (MLB) to three destinations: Pittsburgh, Pa.; Nashville, Tenn. and Concord, N.C. beginning in November. The new nonstop routes to/from Melbourne Orlando International Airport (MLB) will operate twice weekly and include: Pittsburgh, Pennsylvania via Pittsburgh International Airport (PIT) â€" beginning Nov. 11, 2021. Nashville, Tennessee via Nashville International Airport (BNA) â€" beginning Nov. 18, 2021. Concord, North Carolina via Concord-Padgett Airport (USA) â€" beginning Nov. 18, 2021.