The win – worth £160,000 – followed a four-way pitch against Weber Shandwick, Hill & Knowlton and Edelman.
Ogilvy associate director Charlie Pryor will head the account, reporting to SITA vice-president of global marketing and communications Arthur Calderwood.
The agency will handle strategic advice, financial, trade and business, together with branding counsel.
It will also oversee the client’s annual Airline IT Trends Survey in September.
Outgoing five-year incumbent Cohn & Wolf declined to repitch. The agency did pitch for SITA’s newly created global PA remit in January – but lost out to Weber Shandwick.
SITA, provides networking facilities, such as in-flight email, in more than 200 countries. It is owned by a consortium of airlines, airports and aerospace companies.