The average train between London and Chauny takes 8h 12m and the fastest train takes 4h 16m. The train service runs several times per day from London to Chauny. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run 4 times a day between London and Chauny. The earliest departure is at 7:04 AM in the morning, and the last departure from London is at 7:34 PM which arrives into Chauny at 1:12 PM. All services require a transfer at Lille Europe and take an average of 8h 12m. The schedules shown below are for the next available departures.


5h 6m • 2 changes

4h 20m • 2 changes

5h 5m • 2 changes

5h 19m • 2 changesWant to know about travelling from London to Chauny? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from London to Chauny. However, there are services departing from London station and arriving at Chauny station via Lille Europe. The journey, including transfers, takes approximately 8h 12m.
London to Chauny train services, operated by Eurostar, depart from London St Pancras Intl station.
London to Chauny train services, operated by Eurostar, arrive at St Quentin station.
Book your London to Chauny train tickets online with Eurostar and Société Nationale des Chemins de fer Français (SNCF).
The distance between London and Chauny is 316.4 km. The road distance is 422 km.
You can take a train from London St Pancras Intl to Chauny via Lille Europe, Lille Flandres, and St Quentin in around 4h 36m.