The average train between Kings Cross and Gare Montparnasse takes 2h 47m and the fastest train takes 2h 41m. There is a train service every few hours from Kings Cross to Gare 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 Kings Cross and Gare Montparnasse. The earliest departure is at 6:31 AM in the morning, and the last departure from Kings Cross is at 8:01 PM which arrives into Gare Montparnasse at 11:45 PM. All services require a transfer at Paris Nord and take an average of 2h 47m. The schedules shown below are for the next available departures.

3h 44m • 1 change

3h 41m • 1 change

3h 46m • 1 change

3h 45m • 1 change

3h 45m • 1 change

3h 46m • 1 change

3h 44m • 1 change

3h 44m • 1 change

3h 43m • 1 change

3h 48m • 1 change

3h 44m • 1 change

3h 45m • 1 change
Want to know about travelling from Kings Cross to Gare 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 Kings Cross to Gare Montparnasse. However, there are services departing from Kings Cross station and arriving at Gare Montparnasse station via Paris Nord. The journey, including transfers, takes approximately 2h 47m.
Kings Cross to Gare Montparnasse train services, operated by Eurostar, depart from London St Pancras Intl station.
Kings Cross to Gare Montparnasse train services, operated by Eurostar, arrive at Paris Nord station.
The distance between Kings Cross and Gare Montparnasse is 345.7 km. The road distance is 456 km.
Eurostar operates a train from London St Pancras Intl to Paris Nord hourly. Tickets cost €120–220 and the journey takes 2h 28m.