Originally Posted by
swiftaw
Have a 4.5 hour layover in AMS (UA IAH-AMS to TP AMS-LIS) on December.
Wondering if that is enough time to go landside and into the city for an hour or two?
For an 1-2 hours? I wouldn't. If you just want to walk around the area near the train station, maybe 30-45 minutes depending on the time of day your flight departs. Trains between AMS and Amsterdam Centraal leave every few minutes so that's a convenience.