The average train between Montparnasse and London takes 2h 45m and the fastest train takes 2h 41m. 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 6:44 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 45m. The schedules shown below are for the next available departures.

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2h 41m • 1 changeWant 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 Paris Nord station and arriving at London St Pancras Intl station via London St Pancras Intl station. The journey, including transfers, takes approximately 2h 45m.
Montparnasse to London train services, operated by Eurostar, depart from Paris Nord station.
Montparnasse to London train services, operated by Eurostar, arrive at London St Pancras Intl station.
The distance between Montparnasse and London is 344 km.
Eurostar operates a train from Paris Nord to London St Pancras Intl hourly. Tickets cost £150–240 and the journey takes 2h 27m.