Chiltern Railways enters public ownership on 20 September 2026

Chiltern Railways public ownership starts on 20 September, while 25 extra weekday services and almost 10,000 additional weekday seats follow with the December 2026 timetable.

On that Sunday, Chiltern’s passenger services leave the Arriva-owned company that has run them under a Department for Transport contract. They move to a new publicly owned operating company that will be a subsidiary of DfT Operator Limited. Chiltern will become the sixth operator whose services transfer under the Passenger Railway Services (Public Ownership) Act 2024, after South Western Railway, c2c, Greater Anglia, West Midlands Trains and Govia Thameslink Railway.

Chiltern Railways is the sixth operator in the sequence, and Great Western Railway is scheduled to follow as the seventh. The department expects the transfers of its contracted operators to finish by the close of 2027. Source: Department for Transport, Great British Railways and the public ownership programme, last updated 8 September 2026.

Cancelled-train ticket rule starts on 20 September

On the day of transfer, one practical change reaches passengers. A ticket for a cancelled train will be valid on another participating operator’s service at no extra cost. The Department for Transport set the conditions on 14 September: the replacement train must leave within two hours before or after the cancelled one and take a direct or reasonable alternative route. Passengers show their original ticket to staff on board.

The rule does not depend on ownership. Avanti West Coast, CrossCountry and Great Western Railway join on the same day, although all three are still privately run. Operators already in public hands accept each other’s tickets under a scheme already in place.

December timetable adds 25 weekday services

Larger changes wait for December 2026. The new Chiltern timetable adds 25 services each weekday, including a train every 30 minutes throughout the day between London and Birmingham on the Chiltern Main Line. The department puts the gain at almost 10,000 extra seats every weekday, with nearly 5,000 more on Saturdays and over 3,000 more on Sundays.

Six more Chiltern Explorer trains are due to enter service with that timetable, bringing the fleet to 13 sets of Mark 5A carriages. They offer air conditioning, better accessibility and upgraded wifi between London and the West Midlands. A £12 million refurbishment of the existing Class 168 fleet also continues, adding wifi, power sockets and USB charging to every seat, with refreshed interiors by 2028.

Station work includes graffiti removal, deep cleaning, painting and refurbished toilets. At Haddenham and Thame Parkway, 200 car park spaces that had been closed will reopen, and new signage is planned at five of Chiltern’s busiest stations. The network carries almost 20 million passengers a year, according to the department.

Capacity plan predates the transfer

The capacity plan came from the operator months before the transfer date was published. Chiltern Railways, part of the Arriva group, showed its first Mark 5A train on 14 October 2025 and said the 13-train fleet would add 10,000 seats each weekday from December 2026. Its lease with Beacon Rail for the 13 sets had been signed on 4 August 2025.

The first Chiltern Explorer entered passenger service on 26 January 2026. At that point the operator said the full fleet would allow a train every 30 minutes between the West Midlands and London on weekdays from December. Tony Baxter, Chiltern’s interim managing director, has credited the coming improvements to years of planning by the operator’s staff.

East West Rail passenger trains have not started

The government also presents public ownership as a fresh chance to deliver East West Rail. Chiltern is the operator selected for the first stage between Oxford and Milton Keynes. A Department for Transport procurement notice published in April 2023 set an expected passenger-service start between December 2024 and September 2025.

The infrastructure opened in December 2024, yet no passenger trains run on the route. Chiltern says it has trained 44 drivers, completed a driver depot at Bletchley and fitted out the new Winslow station. Its offer to the RMT union included a customer service colleague on every service. In its latest update on the route, the operator said:

“We are disappointed that the RMT has rejected our proposal.”

That update gives no start date for the service, and the government’s transfer announcement does not name one either.

The core infrastructure opened in December 2024, but Chiltern says work remains on the trains, Winslow station and the operating arrangements. Passenger services missed the earlier start window, and no launch date has been published. Sources: Chiltern Railways, East West Rail route update, checked 18 September 2026; Department for Transport, contract notice, 6 April 2023.

Great Western Railway transfers next, on 13 December

After Govia Thameslink Railway changed hands on 31 May, Transport Secretary Heidi Alexander told Parliament that nine of the 14 operators under DfT contract were publicly owned. Chiltern’s transfer makes it ten. Great Western Railway follows on 13 December 2026, and the department expects the whole programme to be complete by the close of 2027. Chiltern’s National Rail Contract was dated 2 December 2021. It had a core term expiry date of 1 April 2025 and a full expiry date of 12 December 2027, subject to the government’s termination rights.

In the same statement, Alexander set out a limit to what the change of owner delivers by itself:

“Public ownership is already putting passengers back at the heart of the railway, but it is not in itself a guarantee of improved services.”