The national airline is Tajikistan Airlines . Other airlines serving Tajikistan include Kyrgyzstan Airlines, Samara Airlines and Siberia Airlines . The UN operates flights for staff and visitors of humanitarian organisations working in Tajikistan. Karachi is 2 hours and to Delhi is 1 hour 30 minutes. Trains are the most reliable way of reaching Dushanbe for those not arriving by air.
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. Travellers are advised to sit with their back to the engine, as throwing rocks at the windows of passing trains seems to be a popular pastime among local children. Khojand in the north of the country can be reached directly from Samarkand in Uzbekistan. There is also a new train service between Dushanbe and Volgograd in Russia. Tajikistan can be approached by road from Uzbekistan, subject to occasional unannounced border closures and snow.