The flight, operated by Russian airline Kogalymavia, came down in the Sinai peninsula.
The Russian Air Transport Agency said the airliner disintegrated at high altitude, the BBC reported.
The Airbus 321 crashed shortly after leaving the resort of Sharm el-Sheikh for the Russian city of St Petersburg.
Russia has said it will pay compensation to the victims.
The aircraft flight recorders have been found and sent for analysis. Isis has claimed that it shot down the aircraft.
The bodies of 144 of the victims have been sent back to Russia.
Several airlines have said they will no longer fly over the region, including Emirates, Air France - KLM and Lufthansa. EasyJet said its planes were already not flying over the north and central Sinai conflict zone, with a spokesperson stating: “As has been the case for some time before yesterday’s incident, easyJet like other UK airlines does not fly over northern and central Sinai, the area of the incident.”
A spokesperson for British Airways said: “We do not discuss the details of individual routes but we would not fly a route unless it was safe to do. The safety of our customers is always the number one priority.”
Thomas Cook said in a statement that it followed the lead of the Foreign and Commonwealth office, whose advice for travel to the region remains unchanged.
A spokesperson added: "Thomas Cook Airlines can confirm flight plans take into account no fly zones, weather issues etc. We do not fly over the Sinai and our programme to the region remains unaffected, and our experienced team on the ground have advised us that our customers are continuing to enjoy their holidays as normal."
