Vinod Khosla's Challenger 604 N604SB Flies 12 nm From San Francisco to Oakland in 27 Minutes

Bombardier Challenger 604 N604SB, an aircraft tracked for Vinod Khosla, flew 12 nautical miles (14 miles) from San Francisco to Oakland on October 27, 2026, in 27 minutes. The aircraft reached a top ground speed of 278 knots and a highest altitude of 4,875 feet. Celebplanes estimated the flight burned about 124 US gallons of fuel, producing roughly 1,191 kilograms of CO2.

Celebplanes counted it as the 11th tracked landing at Oakland for any of Khosla's aircraft in the 30 days before the flight. It was the first tracked Oakland landing for his aircraft since October 18, 2026, when N604SB performed a one-minute ground movement at the same airport. Khosla's home base on file is Norman Y. Mineta San Jose International Airport, 26 nautical miles from Oakland.

Earlier on October 27, N604SB had arrived at San Francisco from San José del Cabo, a 602-nautical-mile flight lasting 1 hour 35 minutes. On October 24 it flew from Nashua, New Hampshire, to Durango, Mexico, covering 1,998 nautical miles in 4 hours 48 minutes.

In the 30 days before the flight, all of the owner's aircraft made 37 flights, spent 99.4 hours in the air and visited 28 airports in 12 countries. Over that period they made 10 landings at Oakland, the most common destination, followed by Seattle with 5 and Denver with 2. The longest leg was an Oakland-to-Narita flight on October 21, covering 4,411 nautical miles aboard N85NV.

The Bombardier Challenger 604 is a large-cabin business jet that typically seats 9 to 12 passengers, with a service ceiling of 41,000 feet, a range of 3,900 nautical miles and a top speed of Mach 0.82.

Khosla co-founded Sun Microsystems in 1982 and founded Khosla Ventures in 2004. He is a major early investor in OpenAI and lives in Portola Valley, California. In September 2026, Khosla, his wife Neeru and their son Neal Khosla closed on the purchase of the Seattle Seahawks from the Paul G. Allen estate for $9.612 billion, the highest price ever paid for an NFL team. A search of Bay Area business news found no scheduled public appearance or board meeting for Khosla in Oakland around the date of the flight.

A 12-nautical-mile hop that follows a 602-nautical-mile arrival from Mexico is a repositioning pattern familiar to owner-operated large-cabin jets: the aircraft ends a long leg at one airport and finishes the day at another close by. The 27-minute flight and roughly 124 gallons of fuel illustrate how little distance is involved, and how much of a jet's activity sits in short movements around a home region rather than in headline long-haul legs.

The tracking itself is part of the story for the segment. Hobbyist trackers now estimate fuel burn and CO2 per flight from public movement data, which turns individual private-jet sorties into figures that outsiders can cite. For owners, operators and fuel suppliers, that visibility is a reputational factor that sits alongside the operational one, particularly for the shortest flights where the per-mile footprint looks largest.

The estimates here come from Celebplanes' own model, so the 124 gallons and 1,191 kilograms are tracker calculations, not operator-reported figures. The next point of verification would be any disclosure from the owner's side about the purpose of the Oakland flight, which the Bay Area business news search did not tie to a public event.