I read several reviews on these pants on other websites and lots of people said they ran small. I wear an 8 I ordered an 8 and they are an 8. Fit perfectly. They are very light weight which I needed as we are going to Europe and I need light things so stay in compliance with the 50lb. airline rule. I think they will be comfortable for travel.
These North Face pants are so great, I bought two pair over a year ago. I wear them continuously year round and have yet to look worn. Super comfortable, flattering and true to size. I am 5'7" and 120lbs and the 4L fit perfectly. Awesome quality for the price!