section_path: Economy/Transport
section_name: Transport
paragraph_text: Transport
  
  Many roads and bridges were destroyed, and international maritime travel was blocked by the 2022 Russian invasion of Ukraine. Before that it was mainly through the Port of Odesa, from where ferries sailed regularly to Istanbul, Varna and Haifa. The largest ferry company operating these routes was Ukrferry. There are over 1,600 km (1,000 mi) of navigable waterways on 7 rivers, mostly on the Danube, Dnieper and Pripyat. All Ukraine's rivers freeze over in winter, limiting navigation.
  
  Ukraine's rail network connects all major urban areas, port facilities and industrial centres. The heaviest concentration of railway track is the Donbas region. Although rail freight transport fell in the 1990s, Ukraine is still one of the world's highest rail users.
  
  Ukraine International Airlines, is the flag carrier and the largest airline, with its head office in Kyiv and its main hub at Kyiv's Boryspil International Airport. It operated domestic and international passenger flights and cargo services to Europe, the Middle East, the United States, Canada, and Asia.