London Bus N20

Bus N20 in London links Barnet Hospital and Whitehall / Trafalgar Square. The route is 0.0 km long with 74 stops, and the official schedule from Transport for London puts the full trip at about 58 minutes. On a weekday it runs 11 trips in one direction.

Route at a glance

Route of Bus N20

Outbound: Barnet Hospital → Whitehall / Trafalgar Square

This direction has 74 stops. The route passes Union Street Barnet, Tally Ho Corner, East Finchley, Kentish Town Post Office. The full list of stops in order is below.

Inbound: Whitehall / Trafalgar Square → Barnet Hospital

This direction has 73 stops. The route passes Leicester Square, Kentish Town, Fairlawn Avenue, Torrington Park. The full list of stops in order is below.

Schedule and frequency

According to the official schedule from Transport for London, the route runs 11 trips in one direction on a weekday.

Fare and payment

A single ride costs 1.75 £ — fare in effect since 5 July 2026. The same fare applies to buses in London.

A single bus or tram journey costs £1.75. The Hopper fare lets you make unlimited bus and tram journeys within one hour of your first tap at no extra charge. Daily spending is capped at £5.25; a 7 Day Bus & Tram Pass costs £24.70. London buses do not accept cash — pay by contactless or Oyster. Transfers within 60 minutes are free. Within the Hopper hour the transfers are free; you must tap the same card or device.

Frequently asked questions

How much does a ride on bus N20 cost?

1.75 £ for a single ride — fare in effect since 5 July 2026.

When do the first and last trips run?

From Barnet Hospital the first is at 00:00 and the last at 05:00. From Whitehall / Trafalgar Square they are 00:20 and 05:50.

How long does the trip from Barnet Hospital to Whitehall / Trafalgar Square take?

About 58 minutes end to end — the median of full trips in the official schedule.

How many stops does the route have?

74 outbound and 73 inbound according to the official GTFS feed. The two lists do not match exactly.

Does bus N20 run on weekends?

Yes, the route runs every day, with a separate weekend schedule.

Every route number with its termini, operating hours and travel time is collected in the London buses overview.

Data current as of August 22, 2026. Schedule and termini — Transport for London (TfL). Fares — Mayor of London, MD3517 July 2026 fare changes (Direction to TfL). Stop list, schedule and route geometry come from the official GTFS feed (Bus Open Data Service (BODS), version 20260822_025337).