Bus routes 21N and 63 diverted in central Helsinki due to construction work

Buses 21N and 63 operate on diversion routes in central Helsinki due to construction work on Arkadiankatu. Bus route 21N was diverted on 22 September, whereas bus 63 will operate on a diversion route from 23 September.

Buses 21N and 63 operate on diversion routes in central Helsinki due to construction work on Arkadiankatu. The changes were introduced at short notice, and information may not yet be up to date at all bus stops. We will update the information as soon as possible.

The buses are expected to resume their normal routes on 28 November 2026.

Diversion route for bus 21N

Towards Asema-aukio: From Jaakonkatu, the bus will run via Eteläinen Rautatiekatu, Antinkatu, Pohjoinen Rautatiekatu and Mannerheimintie and then resume its normal route. The bus will not serve the “Arkadian puisto” (H1272) stop. 

The bus will run as usual towards Katajaharju.

Diversion route for bus 63

Towards Kamppi: The bus will run from Pohjoinen Rautatiekatu directly via Jaakonkatu to the Kamppi bus terminal. The bus will not run via Arkadiankatu or Fredrikinkatu. The bus will not serve the “Luonnontieteellinen museo” (H0201) or “Fredrikinkatu” (H1224) stops. The bus will exceptionally serve the Pohjoinen Rautatienkatu (H1273) stop.

Towards Paloheinä: From the Kamppi bus terminal, the bus will run via Eteläinen Rautatiekatu and Antinkatu to Pohjoinen Rautatiekatu and then resume its normal route.

Map showing the diversion route for bus 63

Bussin 63 poikkeusreitit kartalla