thats what I figured was going on but didnt want to assume. In that case multi trips is the best way but it will cost a little more. And if you are in SEA you can actually book SEA-PDX-SEA-PDX-SEA for 4 segments :/ You will probably spend less time and money doing that than any other route out of there. You can knock out 4 segments in about 6 hours for $350 including your parking. Im not sure what else can beat that out of SEA particularly if you count parking fees and or what your time is worth to you