Jan Koum's Gulfstream G650ER N143 flies Tel Aviv to Teterboro in 11 hours

Jan Koum's Gulfstream G650ER, tail number N143, departed Ben Gurion International Airport in Tel Aviv at 16:37 UTC on Monday, October 26, 2026, and landed at Teterboro Airport in New Jersey 10 hours and 59 minutes later at 03:36 UTC. The flight covered a great-circle distance of 4,926 nautical miles, or 5,669 miles, at an average ground speed of 448 knots. The aircraft reached a highest altitude of 43,025 feet and a top ground speed of 530 knots.

The Gulfstream G650ER is an ultra-long-range jet with a range of 7,500 nautical miles, a top speed of Mach 0.925, and a ceiling of 51,000 feet. It typically seats 12 passengers and up to 19. Our estimate for this flight: about 5,164 US gallons of fuel burned and about 49,604 kilograms of CO2 emitted, roughly the same as driving a car 122,781 miles. The aircraft used 66 percent of its maximum range on this leg.

This was the ninth landing by one of Jan Koum's Gulfstream G650ERs at Teterboro in the tracked window from August 4 to October 24, 2026. The previous landing at the same airport occurred on October 18, 2026, eight days before this flight, by N143, another G650ER in the fleet. 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. In the 24 hours before this landing, other tracked aircraft at Teterboro included a FedEx Bombardier Challenger 300, a Marathon Petroleum Gulfstream G450, a Washington Companies Bombardier Challenger 350, Len Blavatnik's Gulfstream G650, a PNC Financial Bombardier Challenger 300, and Howard Lutnick's Embraer Lineage 1000E.

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 built WhatsApp to 450 million users and sold it to Facebook for about $19 to $22 billion in 2014. He left Facebook and WhatsApp in 2018 over data privacy and monetization disputes. His fleet of three Gulfstream G650ERs, all held by TVPX Aircraft Solutions Inc as trustee, is tracked regularly on routes between California, the East Coast, Europe, and the Middle East.

Before this transatlantic leg, N143 had flown from Tel Aviv to Spata-Artemida on October 24, a 1-hour 33-minute hop of 644 nautical miles, and from Spata-Artemida back to Tel Aviv the same day. The aircraft had also flown from Les Mureaux in France to Tel Aviv on October 23, covering 1,803 nautical miles in 3 hours and 32 minutes. In the 30 days before this flight, the owner's three Gulfstream G650ERs flew 17 flights totaling 50.7 hours in the air, covering about 23,369 nautical miles and using 14 airports in 5 countries.

The flight ended at the owner's home base on Teterboro, a routine return after a multi-leg journey through Europe and the Middle East. The aircraft is now on the ground in New Jersey.