Jan Koum's Gulfstream G650ER N143 flies Hartford to Teterboro in 31 minutes

Jan Koum's Gulfstream G650ER, tail N143, departed Bradley International Airport in Hartford at 16:08 UTC on Sunday, November 8, 2026, and landed at Teterboro Airport 31 minutes later at 16:39 UTC. The short hop covered a great-circle distance of 94 nautical miles, or 108 miles, at an average ground speed of 183 knots. The aircraft reached a highest altitude of 12,075 feet and a top ground speed of 379 knots.

The flight used about 1 percent of the aircraft's 7,500-nautical-mile range. Our estimate for this flight: about 240 US gallons of fuel burned and about 2,310 kilograms of CO2 emitted, roughly the same as driving a car 5,718 miles. The Gulfstream G650ER is an ultra-long-range jet with a top speed of Mach 0.925, a ceiling of 51,000 feet, and typically seats 12 passengers, up to 19.

This was the ninth landing at Teterboro by one of Jan Koum's Gulfstream G650ERs in the tracked window from August 7 to October 27, 2026. The previous landing at the same airport occurred on October 27, 2026, 13 days before this flight, by N143. Jan Koum's home base is Teterboro Airport in New Jersey, and his most common destinations in the tracked window were Teterboro, Hartford, and San Jose. Other tracked aircraft that landed at Teterboro in the 24 hours before this landing include Lady Gaga's Gulfstream V about 23 hours earlier, Howard Lutnick's Embraer Lineage 1000E about 21 hours earlier, Steve Tisch's Gulfstream G500 about 16 hours earlier, and Lachlan Murdoch's Gulfstream G800 about 1 hour earlier.

Jan Koum is the co-founder and former CEO of WhatsApp, a technology investor with a net worth of about $16.9 to 17 billion. He left Facebook and WhatsApp in 2018 over data privacy and monetization disputes. His Newlands VC family office in Dallas manages about $10 billion in assets. Teterboro is his home base, and this flight ended there after a 12-day gap since the previous tracked landing at Hartford.

This was a routine return to home base after the aircraft had spent about 12 days on the ground at Hartford following its previous flight from Tel Aviv to Teterboro on October 26, 2026. In the 30 days before this flight, Jan Koum's three Gulfstream G650ERs flew 13 flights totaling 39.8 hours in the air, covering about 17,951 nautical miles and using 10 airports in 4 countries. The longest leg in that period was a 4,926-nautical-mile flight from Tel Aviv to Teterboro on October 26, 2026, flown by N143.

Bradley International Airport's longest runway is 9,510 feet, with an elevation of 173 feet. Teterboro Airport's longest runway is 6,997 feet, with an elevation of 9 feet.

In the tracked window from August 7 to October 27, 2026, Jan Koum's three Gulfstream G650ERs flew 37 flights. The most common destinations were Teterboro with 8 landings, Hartford with 6 landings, and San Jose with 3 landings.