September 2025 is shaping up to be one of the most challenging months for London’s transport network in recent memory. A combination of large-scale engineering works, weekend closures, and late-night maintenance will disrupt services across almost every major line of the Underground, Overground, Elizabeth line and DLR. The situation is further complicated by a series of strikes organised by the RMT union, which are expected to bring entire sections of the network to a standstill for several consecutive days.

For millions of Londoners, this means longer commutes, crowded replacement bus services and the prospect of last-minute travel changes. Tourists arriving in the capital will also face unexpected difficulties, especially when travelling to and from key hubs such as Heathrow, Stratford, and Wembley during major events. Businesses, theatres, sports venues and cultural institutions warn of serious losses, as the closures coincide with peak autumn activity. With both maintenance and industrial action overlapping, the month ahead is likely to test the resilience of London’s transport infrastructure and its passengers more than at any time since the pandemic. This is reported by The WP Times, citing MyLondon.

Daily Calendar of Major Closures (September 1–30, 2025)

September 1–4 (Mon–Thu)

  • Overground (Windrush line): No service New Cross Gate ↔ Crystal Palace/West Croydon after 23:30.
  • Overground (Mildmay line): No westbound service Stratford ↔ Camden Road after 23:45.
  • Sept 3–4: No eastbound service Willesden Junction ↔ Stratford after 23:00.

September 5–6 (Fri–Sat)

  • Central line: Night Tube suspended Marble Arch ↔ Loughton/Hainault via Woodford.
  • Sept 6–7: Central line closed Liverpool Street ↔ Newbury Park/Woodford.

September 7 (Sun)

  • Overground (Mildmay line): No service Willesden Junction ↔ Richmond.
  • Beginning of full Tube/DLR strike week (RMT action 7–11 Sept).

September 8–10 (Mon–Wed)

  • Elizabeth line: Evening closures Acton Main Line ↔ Ealing Broadway after 22:00.
  • Overground (Mildmay line): No westbound service Camden Road ↔ Willesden Junc after 23:45.

September 11 (Thu)

  • Final day of RMT Underground strike. Expect network-wide disruption.

September 12–13 (Fri–Sat)

  • Piccadilly line Night Tube: No service Hammersmith ↔ Heathrow.

September 13–14 (Sat–Sun)

  • Piccadilly line: No service Hammersmith ↔ Osterley & Uxbridge.
  • District line: No service Turnham Green ↔ Ealing Broadway.
  • Overground (Windrush line): No service New Cross Gate ↔ Crystal Palace/West Croydon.
  • Sept 14 (Sun): Overground no service Wandsworth Road ↔ Clapham Junc.
  • Elizabeth line: No service Acton Main Line ↔ West Ealing.
  • Overground (Suffragette line): No service Barking ↔ Barking Riverside.
  • Overground (Weaver line): No service Hackney Downs ↔ Chingford after 22:45.

September 15–18 (Mon–Thu)

  • Overground (Weaver line): No service Hackney Downs ↔ Chingford after 22:45.

September 20–21 (Sat–Sun)

  • Piccadilly line: No service Acton Town ↔ Uxbridge.
  • Metropolitan line: No service Harrow-on-the-Hill ↔ Uxbridge.
  • Elizabeth line: No service Acton Main ↔ West Ealing (Sept 21 only).
  • Overground (Mildmay line): No service Camden Road ↔ Stratford after 22:15.
  • Overground (Windrush line): No service Highbury & Islington ↔ Dalston Junc after 22:15.

September 26–27 (Fri–Sat)

  • Piccadilly line Night Tube: No service King’s Cross St Pancras ↔ Heathrow.

September 27–28 (Sat–Sun)

  • Piccadilly line: No service King’s Cross St Pancras ↔ Osterley & Uxbridge.
  • District line: No service Turnham Green ↔ Ealing Broadway.
  • Bakerloo line: No service Stonebridge Park ↔ Harrow & Wealdstone (Sept 27).
  • Overground (Lioness line): No service Willesden Junction ↔ Watford Junction.
  • Overground (Windrush line): No service New Cross Gate ↔ Crystal Palace/West Croydon.
  • Sept 28: Overground no service Surrey Quays ↔ Clapham Junc.
  • Weaver line: No service Liverpool Street ↔ Enfield Town, Cheshunt, Chingford until 10:15am.
  • DLR: No service Bank/Tower Gateway ↔ Poplar/West India Quay.

September 29–Oct 2 (Mon–Thu)

  • Overground (Weaver line): No service Hackney Downs ↔ Enfield Town/Cheshunt after 22:45.

What Passengers Should Expect

This September, almost every part of London’s rail and Underground system will experience closures. Some are late-evening maintenance suspensions, others are full weekend blockades. With strike action layered on top, the effect is city-wide disruption:

  • Night Tube services on the Central and Piccadilly lines are especially hit, leaving night workers and late-night travellers with limited options.
  • West London faces multiple Elizabeth line and District line closures, especially around Ealing Broadway.
  • North and East London are heavily affected by Overground works, particularly Hackney, Chingford, Enfield, and New Cross branches.
  • South London travellers will see repeated closures on the Windrush line (New Cross Gate ↔ Crystal Palace/West Croydon) and Surrey Quays ↔ Clapham Junction.

Businesses in hospitality and events are bracing for cancellations and lost revenue, with major concerts at Wembley and Tottenham Hotspur Stadium scheduled in September. TfL defends the timing, saying the works are essential to maintain reliability, but commuters remain frustrated after a summer of strikes and closures.

  • Check TfL’s journey planner daily, as schedules can change.
  • Allow extra time — journeys may take up to 40% longer during closures.
  • Use alternatives: buses, walking routes, cycling, Elizabeth line (when open).
  • Avoid central hubs (Oxford Circus, Liverpool Street, King’s Cross) during peak disruption.
  • Plan ahead for events: football matches, concerts, and festivals will coincide with closures.

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