Getting to Groningen from Amsterdam International Airport (Schiphol )
You will probably arrive in the Netherlands at Schiphol, Amsterdam International Airport. The easiest way to travel to Groningen is to take the train. The underground train station is located near Schiphol Plaza, within several minutes walking distance from the luggage claim. The Dutch railway system is run by Nederlandse Spoorwegen and known as NS. You will recognize it by its yellow and blue colours. Look out for the yellow illuminated signs that direct you ‘To the trains’.
There is a direct hourly train service to Groningen from Schiphol Airport. Additional connections every hour involve just one change of trains. Make sure that you board one of the carriages marked with the destination Groningen (the other part of the train travels to Leeuwarden). The journey from Amsterdam or Schiphol Airport to Groningen takes a little over 2 hours.
To plan your specific journey by train please visit http://www.ns.nl/en/journeyplanner/#/
For general public transport advice, you may also consult http://9292.nl/en#, which also gives information on busses, trams etc.