The average train between Montparnasse and London takes 2h 43m and the fastest train takes 2h 39m. There is a train service every few hours from Montparnasse to London. 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 hourly between Montparnasse and London. The earliest departure is at 6:37 AM in the morning, and the last departure from Montparnasse is at 8:47 PM which arrives into London at 10:30 PM. All services require a transfer at Gare du Nord and take an average of 2h 43m. The schedules shown below are for the next available departures.

1h 39m • 1 change

1h 39m • 1 change

1h 39m • 1 change

1h 39m • 1 change

1h 52m • 1 change

1h 41m • 1 change

1h 41m • 1 change

1h 39m • 1 change

1h 52m • 1 change

1h 41m • 1 change

1h 41m • 1 change

1h 39m • 1 change

1h 52m • 1 change

1h 41m • 1 change

1h 41m • 1 change

1h 39m • 1 change
Want to know about travelling from Montparnasse to London? 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 Montparnasse to London. However, there are services departing from Montparnasse station and arriving at London station via London St Pancras Intl. The journey, including transfers, takes approximately 2h 43m.
Montparnasse to London train services, operated by RATP Metro, depart from Paris Nord station.
Montparnasse to London train services, operated by RATP Metro, arrive at London St Pancras Intl station.
The distance between Montparnasse and London is 344 km. The road distance is 456 km.
Eurostar operates a train from Paris Nord to London St Pancras Intl hourly. Tickets cost £120–210 and the journey takes 2h 28m.