- Gates flew more than 213,000 miles on 59 private jet flights in 2017, according to a study from Linnaeus University economics professor Stefan Gössling.
- The flight activity created some 1,760 tons of carbon dioxide emissions, which is nearly 109 times higher than the emissions per capita in the United States, according to data from the World Bank.
- As of 2021, Gates had four private jets: two Gulfstream G650ERs that each cost about $70 million and two Bombardier Challenger 350s that each cost $27 million, according to an article from Skyluxe Aviation.
