Route N21
Trafalgar Square / Charing Cross Stn ↔ Geddes Place
Roam Intelligence
LIVE›Route N21 is on diversion towards Bexleyheath only until 19:00 on 1 November 2026 due to major roadworks. Buses are diverted via Cannon Street, missing stops Bank Station / Poultry (K) and King William Street / Monument Station (G).
Live Departures
No buses due right now
Every London bus is wheelchair-accessible with a low floor and ramp. Refreshes every 15s.
All Stops
Crowd Forecast
Forecast — based on rush hour patterns, local events and live status. Not a live count.
Popular Journeys
Trafalgar Square / Charing Cross Stn to Geddes Place
Trafalgar Square / Charing Cross Stn → Geddes Place
End to end — the full run of the route in one bus.
Trafalgar Square / Charing Cross Stn to London Bridge
Trafalgar Square / Charing Cross Stn → London Bridge
A one-seat ride to the route's main interchange.
London Bridge to Geddes Place
London Bridge → Geddes Place
Pick it up at the interchange and ride it to the end.
What's Nearby
Nothing to show here right now.
Service Alerts
KING WILLIAM STREET, City of London: Route N21 is on diversion towards Bexleyheath only until 19:00 on 1 November 2026 due to major roadworks. Buses are diverted via Cannon Street, missing stops Bank Station / Poultry (K) and King William Street / Monument Station (G).
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Departure reminders
Best stops, what's nearby & how it connects — just ask