Wengen is accessible by train with good international connections.

From Germany via Basel and Bern, the travel is about 3hours

From Zurich airport via Bern, the travel time is about 2hours and 30 minutes

From France via Geneva and Bern, the travel time is about 3hours and 30 minutes

From Italy via Iselle, Brig, Spiez, travel time is about 3hours

 

 

Further information on the site of the SBB/CFF (Swiss train company) on the following website : www.cff.ch