(Portland, OR) -- The upcoming Labor Day weekend is shaping up to be the busiest on record at Portland International Airport. The TSA predicts nearly 270-thousand travelers are expected to pass through PDX from Thursday, August 29th through Monday, September 2nd. That's up more than seven percent over the same period last year. This year, it's even more important that travelers arrive at least two hours before their flights to navigate the new terminal at PDX. There's an updated terminal map at fly-pdx-dot-com.