Travel Updates

London T100 Triathlon Road Closures: Sunday 26 July 2026 — What Travellers Need to Know

Published 25 July 2026·3 min read·62 views

Tower Bridge and Southwark Bridge are closed to vehicles 4:30am–2pm on Sunday 26 July for the London T100 Triathlon, with delays across central and east London. Here is what is closed, which areas are affected, and why travelling on Monday 27 July is the smart move.

Quick answer: On Sunday 26 July 2026, Tower Bridge and Southwark Bridge are closed to vehicles from 4:30am to 2pm for the London T100 Triathlon, with knock-on closures and delays across central and east London. If your journey through central London is flexible, we recommend travelling on Monday 27 July instead, when all roads reopen and normal service resumes.

Which roads are closed?

The City Bridge Foundation has confirmed that Tower Bridge and Southwark Bridge will be closed to vehicles from 4:30am to 2:00pm on Sunday 26 July 2026 to support the London T100 Triathlon. Both bridges remain open to pedestrians, and limited stewarded access over Tower Bridge is being maintained for Wapping residents.

The event route also brings closures and heavy delays (roughly 4:30am–2:00pm) on and around:

The Highway (A1203) and Limehouse Link
Victoria Embankment, Upper & Lower Thames Street (A3211)
Tower Hill and Byward Street
Aspen Way and Lower Lea Crossing (A1261/A1026)
Royal Docks and the ExCeL area (event village)

Which areas are affected?

Journeys starting, ending or passing through these postcode areas should expect diversions and delays during the event: EC3, EC4, SE1, E1, E1W, E14, E16, E3 and SW1 — plus streets immediately adjacent.

What it means for your transfer

Airport transfers from outer London are running normally. Journeys to Heathrow, Gatwick, Luton and Stansted from most areas outside the event zone are unaffected.
Central-London journeys during the closures: we have paused online booking for journeys in the affected area on Sunday while the roads are closed. Please call our 24/7 office on +44 (0) 207 118 0110 — where a safe diversion or an edge-of-zone meeting point is possible, our team will arrange it.
Flying on Sunday from an affected area? Allow at least an extra hour and speak to our office in advance — earlier pickups and alternative pickup points can make all the difference.

Our recommendation: travel on Monday 27 July if you can

All roads reopen by Sunday afternoon and normal service resumes everywhere from Monday. If your central-London journey is flexible — hotel moves, sightseeing, non-urgent trips — booking it for Monday 27 July means no diversions, no delays and standard fixed prices. You can get an instant fixed-price quote here.

Need help?

Our office is available 24/7 on +44 (0) 207 118 0110. If you already have a booking with us on Sunday in an affected area, we are contacting you directly — nothing is cancelled without speaking to you first.