Trains are the most reliable way of reaching Dushanbe for those not arriving by air i.e. not coming from Moscow or the sub-continent. Passenger railways are, however, restricted at present. Dushanbe is connected to a spur of the Trans-Caspian Railway, which winds down to the Afghan border in Uzbekistan before heading north towards Dushanbe.
The journey from Moscow to Dushanbe takes 4 days.