A direct train service between Arcachon and Paris is operated by TGV (train à grande vitesse) and the journey time is around 4 hours. Monday to Thursday, a TGV leaves Arcachon at 13.33, arriving in Paris at 17.20. Also everyday, from 30 June(except Sundays), a TGV leaves Arcachon at 17.08, arriving in Paris Montparnasse at 21.30. A dedicated seat number is given to each passenger when buying the ticket. A single journey ticket from Arcachon to Paris typically costs from 50 € to 120 €, depending upon the day, date, time, booking method (Arcachon station or internet) and advanced notice given.
Regional trains, operated by ter (Transport Express Régional) operate regularly from Arcachon to Bordeaux and the journey time is from 40 minutes to 1 hour. A single ticket from Arcachon costs from 9 € to 11 €. The train times, except for public holidays, are:
| Arcachon | Bordeaux | Arcachon | Bordeaux | Arcachon | Bordeaux |
| 05.38 | 06.20 weekdays | 08.44 | 09.36 weekdays | 17.25 | 18.17 not Sundays |
| 05.59 | 06.48 weekdays | 09.02 | 10.01 not 3/6, 10/6 | 17.48 | 18.33 Mon to Thur |
| 06.18 | 07.11 not Sunday | 10.48 | 11.35 | 18.17 | 19.10 |
| 06.38 | 07.23 weekdays | 12.39 | 13.27 | 19.19 | 20.08 not Saturday |
| 06.48 | 07.36 weekdays | 13.14 | 14.02 | 20.16 | 21.04 not Sundays |
| 07.06 | 07.57 not Sunday | 15.19 | 16.11 exceptions | 21.04 | 21.52 Sunday/Hols. |
| 07.32 | 08.22 weekdays | 16.08 | 17.00 | 21.51 | 22.29 Sunday/Hols. |
| 07.58 | 08.53 weekdays | 16.57 | 17.42 not Saturdays |