SITA eWAS will help Vistara flights avoid weather disruptions, while SITA OptiClimb will reduce carbon emissions by 15,000 tons yearly Gurugram, India, 2023-Oct-08 — /Travel PR News/ — Vistara, India’s finest full-service carrier and a joint venture of the Tata Group and Singapore Airlines, has become the first Indian airline to deploy both SITA eWAS and SITA OptiClimb® solutions…. Read the full press release