NEW DELHI: Supreme Court judges may be neck deep in work but that has not confined them to the courtroom and case files with many judges clocking impressive flying hours in the last three years.In response to an RTI query from advocate Gaurav Agrawal, the Supreme Court Registry has provided interesting information about the countries visited by several judges along with their spouses from April 2013 to March 2016 and the airfare borne by the apex court.Justice A K Sikri till March 2016 undertook seven trips abroad with his wife. They visited Amsterdam, Hague (Netherlands) with transit through London and Dubai (UAE), Singapore (twice), Hong Kong, Brussels with transit through Zurich, Macao (China) with transit through Hong Kong and Beijing, and Tel Aviv with transit through Zurich. In total, their air tickets cost the Supreme Court Rs 37.91 lakh.CJI T S Thakur and his wife visited Colombo (Sri Lanka), Canberra (Australia) with transit through Singapore and Sydney, St Petersburg (Russia) with transit through Moscow and Dubai, Ithaca, Washington and New York (all in the US) with transit through London (UK) and Newark and Chicago (US). The air tickets cost the Supreme Court Rs 36.88 lakh.Justices J Chelameswar and Ranjan Gogoi figured last in the list, having incurred the least expense on air tickets despite travelling with their spouses. Justice Chelameswar took one trip abroad to Kathmandu which cost the SC Rs 1.13 lakh while Justice Gogoi's trip to Bhutan cost the top court Rs 1.46 lakh.Justice Madan B Lokur took the land route and travelled alone to Islamabad and Bhutan and claimed nothing but took two trips abroad with his wife to Bermuda with transit through London, and Antalya with transit through Istanbul (both in Turkey). The Supreme Court paid Rs 25.09 lakh for the air tickets.Justice Anil R Dave and his wife travelled to Canberra (Australia) with transit through Singapore and Sydney, and Strasbourg (France) with transit through Paris and Zurich (Switzerland). The cost of air travel was Rs 17.93 lakh.Justice J S Khehar and his wife undertook just one foreign trip to Sanya and Boao-Hainan provinces in China with transit through Beijing and Hong Kong which entailed a cost of Rs 6.85 lakh.Justices F M I Kalifulla and S A Bobde both travelled abroad alone. Justice Kalifulla went to Strasbourg (France) with transit through Paris and Zurich (Switzerland) costing Rs 9.18 lakh. Justice Bobde went to New York for which the air tickets cost Rs 4.50 lakh.