The figures have been released by the States after a question from Reform Jersey chairman, Deputy Sam Mezec.
It came after it was revealed two civil servants spent £13,000 on flights to a mining conference in South Africa.
The latest figures show Mike King and Wayne Gallichan have been to the conference every year since 2013, spending about £40,000 on flights.
A spokesman for the Chief Minister's Department said: "States-wide reviews of travel policy and expenditure are underway.
"The scope of these reviews encompass the travel spend of the whole of the public sector, including all government departments and the individuals within those departments."
Chairman of the Public Accounts Committee, Deputy Andrew Lewis, said the procurement system did not seem to be working properly.
"It is designed to save money, time and give a good audit trail. We've looked into it and it seems it does not do any of those three things," he said.
"We need to find out how it is supposed to work and if it is not working how they are going to fix it."
Both men have apologised and are facing an internal investigation.
Other flights booked through the States procurement system have cost more than the £6,442 Mr Gallichan and Mr King spent travelling to South Africa.
Colin Powell, the States Advisor on International Affairs flew to Hong Kong for a ministerial visit in 2011 for £6,852.
The figures show the Chief Minister's Department spent £177,000 on flights costing more than a thousand pounds, with Economic Development spending £141,000 over five years.
Among the pages of flight costs, one was for the Principle Legal Advisor to an anti-corruption conference in 2013 to Panama City. It cost £3,682.

The Irish twice took the lead through Sean Murray and Alan Sothern before being pegged back by Pakistan.
Almost constant Pakistan pressure was rewarded when Abu Mahmood levelled from a penalty corner to make it 2-2.
Ireland counter-attacked in the 57th minute for O'Donoghue to score the decisive goal from another set-piece.
Earlier, Murray converted a brilliant opener in the 11th minute when he connected with John Jackson's cross and sent a first-time shot into the roof of the net.
Aleem Muhammed Bilal equalised from the penalty-spot in the 17th minute and within 60 seconds of the start of the second half, Alan Sothern made it 2-1 with a first-time deflection.
Mahmood equalised with 14 minutes remaining before O'Donoghue's late winner.
The sides drew 2-2 in Thursday's opening game and will meet again on Sunday (14:00 BST) as the Irish continue their preparations for the World League semi-finals in Johannesburg.
Next month's South African tournament doubles up as the main qualifying tournament for next year's World Cup.
Later this month, Ireland will play against Germany, Spain and Austria at the Hamburg Masters which takes place from 22-25 June.
Civil servants splashed out nearly £400,000 on 120 flights over the past five years.
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A late goal by Shane O'Donoghue sealed a 3-2 win for Ireland men's hockey team over Pakistan in the second game of the three-match series at Lisnagarvey.