The average train between London and Montparnasse takes 2h 40m and the fastest train takes 2h 38m. There is a train service every few hours from London to Montparnasse. 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 London and Montparnasse. The earliest departure is at 7:01 AM in the morning, and the last departure from London is at 8:01 PM which arrives into Montparnasse at 11:39 PM. All services require a transfer at Paris Nord and take an average of 2h 40m. The schedules shown below are for the next available departures.

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Want to know about travelling from London to Montparnasse? 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 Montparnasse. However, there are services departing from London station and arriving at Montparnasse station via Paris Nord. The journey, including transfers, takes approximately 2h 40m.
London to Montparnasse train services, operated by Eurostar, depart from London St Pancras Intl station.
London to Montparnasse train services, operated by Eurostar, arrive at Paris Nord station.
The distance between London and Montparnasse is 344 km. The road distance is 456 km.
Eurostar operates a train from London St Pancras Intl to Paris Nord hourly. Tickets cost €140–240 and the journey takes 2h 28m.