https://kids.guinnessworldrecords.com en

Longest non-stop International Train Journey

Longest non-stop International Train Journey
Who
Eurostar
Where
United Kingdom (London to Cannes,)
When
16 May 2006
The longest international journey by train without stopping was completed by a Eurostar train that travelled the 1,421 kms (883 miles) from London to Cannes on 16 May 2006. The train was a special service to promote the launch of the Da Vinci Code movie.