The deal covers on-air activities across CNBC networks in Europe, Asia and the US.
The agreement consists of 10 and 30-second spot ads around CNBC's global daily business news programme, Worldwide Exchange.
Qatar Airways will also benefit from sponsorship bumpers around the programme in Asia and the US. Worldwide Exchange is aired daily to more than 100 countries.
Dan McClean, commercial director EMEA at CNBC Europe, said Worldwide Exchange is one of CNBC's most widely distributed programmes, and "reflects Qatar Airways as a premium airline with a growing global network".