If your trip to Portland, OR Airport (PDX-Portland Intl.) is all booked but your travel itinerary is looking a little empty, we can give you a few hints and tips.Even if you're only here on a stopover, you should still head on out and explore the sights. After all, it won't take long to reach Portland Meadows Racetrack.Visitors from all over come to see Moda Center, so make it one of your first stops after you get off the plane. Also worth a look are Vancouver Mall and Lloyd Center.