The Watford trains to London still running amid HS2 works

Engineering work to support the delivery of the new high-speed railway is taking place outside London Euston today (July 18) and tomorrow (July 19).

This will affect all routes to and from the station, although London Overground services will only be affected on Sunday.

The separate Metropolitan Line is running as normal between Watford and London.

London Northwestern Railway

On Saturday, LNR will not operate services into London which start or terminate at Tring and those from Milton Keynes or Northampton will run to a slightly amended timetable.

Until 8pm, trains between the capital and Birmingham New Street/Crewe will depart slightly earlier from London Euston and arrive back there slightly later.

🛠️🚧 Amended service to or from London Euston on Saturday 18 and Sunday 19 July

📢@AvantiWestCoast @LNRailway @TLRailUK#DisruptionVideos

ℹ️More information available here: https://t.co/GgJThjbYie pic.twitter.com/iMyUVvzfwu

— National Rail (@nationalrailenq) July 17, 2026

On Sunday, train services between London Euston and Northampton will only run between London Euston and Milton Keynes Central until 8.45am.

The 7.24am Euston to Birmingham train will run between London Euston and Milton Keynes Central as well as Northampton and Birmingham New Street only, with rail replacement buses between Milton Keynes and Northampton.

From 12pm to 9pm, trains to Milton Keynes, Birmingham, and Crewe will depart earlier and arrive later.

London Overground

London Overground disruption is only due tomorrow

Saturday services are unaffected.

All day on Sunday, one train will run per hour between Watford Junction and Kilburn High Road only.

Avanti West Coast

HS2 engineering work will take place at Euston this weekend (Image: Jacob King/PA)

The following amended timetable will operate:

• 2 trains per hour between London Euston and Manchester Piccadilly (one train via Stoke-on-Trent and one train via Crewe).
• 1 train per hour between London Euston and Liverpool Lime Street (this will be a Pendolino service, Liverpool South Parkway will not be served).
• 1 train per hour between London Euston and Glasgow Central via Nuneaton.
• 1 train per hour between London Euston and Glasgow Central / Edinburgh via the Birmingham New Street.
• 1 train per hour between London Euston and Birmingham New Street.
• Train services between London Euston and Holyhead will run between Crewe and Holyhead.

National Rail added that passengers should note that, on Sunday, trains will be diverted via Northampton (not calling) until 12pm.