There are two main international airport in Switzerland, Geneva Airoport (GVA) and Zurich Ariport (ZHR). With flight connections from all over the world, visitors will have an easy time of reaching Switzerland.
Train system in Swizterland is fast and convenient. There are regular connection to Lausanne Central Station from GVA (approx. every 15 min, 50 min traveling time) and from ZHR (every 30-60 min, 2h30 traveling time).
The easiest way to travel between the EPFL and Lausanne Center is to use the Metro M1.