Portsmouth International At Pease Airport is served by 2 airlines, flying from/to 5 destinationsLongest flight from Portsmouth International At Pease Airport is Portsmouth to 🇺🇸 West Palm Beach (PBI), which takes around 3 hours and 5 minutes. On an airline like Novair. More info on this flight route (PSM-PBI).Shortest flight from Portsmouth International At Pease Airport is Portsmouth to 🇺🇸 Baltimore (BWI), which takes around 1 hour and 5 minutes. On an airline like Netjets Aviation. More info on this flight route (PSM-BWI).