Eastern Oregon Regional At Pendleton Airport is served by 1 airline, flying from/to 2 destinationsLongest flight from Eastern Oregon Regional At Pendleton Airport is Pendleton to 🇺🇸 Portland (PDX), which takes around 50 minutes. On an airline like Aviastar TU. More info on this flight route (PDT-PDX).Shortest flight from Eastern Oregon Regional At Pendleton Airport is Pendleton to 🇺🇸 Portland (PDX), which takes around 50 minutes. On an airline like Aviastar TU. More info on this flight route (PDT-PDX).