Global software provider SAP slashed the number of flights employees took for work by 25% last year.
The company has also banned all employees from travelling in business or first class.
SAP has achieved an €89m saving overall, plus it has reduced energy consumption by 7% and greenhouse gas emissions by16%.
James Farrar VP - Global Corporate Citizenship for SAP said it was important for the IT and communication sector to reduce its effect on the environment.
"Two per cent of all greenhouse gases produced are caused by IT and communications - that's the same as all the airlines combined," said Farrar.
Farrar said the decision for the cut was for both environmental and economic reasons, in his Special Address on how climate change and environmental concern is changing the business of flying, at the Business Travel and Meetings Show.
SAP aims to return to 2000 levels of emissions by 2020. "To achieve this, cutting business flights accounts for a massive proportion," said Farrar.
He said the reductions had been achieved through an increase in video-conferencing, and had been well received by employees.
"People have come to accept flying in economy not just for cost reasons, but because it is environmentally friendly," said Farrar.
"There is more realism today."
SAP is also working to help clients reduce emissions, through sustainability performance management.
Farrar said: "SAP wants to be both an exemplar and an enabler.
"The SAP customer base is responsible for one sixth of greenhouse gas emissions from global sources."