The nearest airport is HEL - Helsinki Vantaa, located 64.2 km east of Sierla.
Other airports nearby include HEM - Helsinki Malmi (70.1 km east), TKU - Turku (86.2 km west), TMP - Tampere Pirkkala (111.7 km north), TLL - Tallinn-ulemiste International Tallinn (125.4 km south east),
Nearby towns ::
Järvenpää (2.6km north east) //
Johannislund (4.1km north west) //
Leppäkorpi (5.6km north) //
Kettula (3.3km south west) //
Mommola (4.1km south east) //
Nummi (4.1km south east) //
Haarjärvi (7.5km south) //
Oinola (5.2km south east) //
[all distances 'as the bird flies' and approximate]