Mark Zuckerberg flies to Monterey the week of the Sun Valley Conference

Mark Zuckerberg flew his Gulfstream G700 from Reid-Hillview Airport in San Jose to Monterey Regional Airport on May 15, a 23-minute hop covering about 50 miles. The brief flight, which climbed to 6,875 feet at a top speed of 293 knots, came a day after his G650ER returned from a trip to Kauai, where he is building a 2,300-acre estate with a 5,000-square-foot underground bunker.

The same week, the Allen & Company Sun Valley Conference is underway in Idaho, an annual gathering of billionaires and business leaders that Zuckerberg has attended in past years. The conference, hosted by the investment firm, draws figures such as Rupert Murdoch, Sergey Brin, and Marc Benioff, according to flight records tracked by celebrityprivatejettracker.com. Zuckerberg’s move to Monterey — the closest major airport to his Lake Tahoe property and a common staging point for the conference — suggests he is en route to the event.

The trip continues a pattern of frequent shuttling between California and Hawaii that drew climate criticism last year, when his G650ER burned 2,328 gallons of jet fuel per leg on back-to-back round trips, emitting roughly 70 tons of CO₂ in two days. The newer G700, delivered in December 2024 for about $80 million, is more fuel-efficient, but the 294 trips logged by his fleet since 2021 have produced an estimated 4,390 metric tons of CO₂.