What are the most popular routes to Grou?
| Amsterdam - Grou | Average priceCOP 258,875 | Average duration2h 33m | Daily departures227 | |
| Alkmaar - Grou | Average priceCOP 264,012 | Average duration3h 28m | Daily departures70 | |
| Heerhugowaard - Grou | Average priceCOP 264,012 | Average duration3h 45m | Daily departures23 | |
| Zwolle - Grou | Average priceCOP 152,876 | Average duration50m | Daily departures32 | |
| Heerenveen - Grou | Average priceCOP 39,563 | Average duration11m | Daily departures25 | |
