How long does it take to fly from Memphis Tennessee to Portland Oregon?

Depends on the type of aircraft, weather, winds (especially the winds) and Air Traffic Control, but in a typical commercial aircraft about 4 and a half hours there, and a half hour to forty five minutes less coming back. It would take 5+ hours to do it,they are connecting flights.If you need more help to see flights go to "www.expedia.com",to check out prices and the time the flights takes.