UK Government Royal Flight's Falcon 900LX G-ZAHS flies 50 nm from Southampton to Heathrow

UK Government / Royal Flight's Dassault Falcon 900LX, tail number G-ZAHS, landed at London Heathrow Airport on Thursday, November 12, 2026, at 21:35 UTC. The aircraft departed Southampton Airport at 21:07 UTC and spent 28 minutes in the air. The flight covered a great-circle distance of 50 nm at an average ground speed of 108 kt.

The aircraft reached a highest altitude of 9,025 feet and a top ground speed of 275 kt. It burned an estimated 121 US gallons of fuel, producing about 1,160 kg of CO2. The Falcon 900LX has a range of 4,750 nm, a service ceiling of 51,000 feet, and can carry up to 14 passengers. This flight used about 1 percent of the aircraft's range.

This was the 12th landing by UK Government / Royal Flight aircraft at London Heathrow in the 30 days before this flight. The previous landing at Heathrow was on the same day by the same owner's other Falcon 900LX, G-ZABH, which arrived from RAF Northolt. The home base for UK Government / Royal Flight is RAF Northolt, about 5 nm from Heathrow. The fleet's usual destinations include London, Paris, New York, Brussels, Munich, and Edinburgh. In the 30 days before this flight, the fleet's most common destination was London, with 11 landings, followed by Oslo with 4 landings and Newquay with 3 landings. About 10 hours before this landing, Philip Green's Gulfstream G650 also landed at London Heathrow.

UK Government / Royal Flight operates the United Kingdom's government air fleet for King Charles III, the Prime Minister, Cabinet ministers, and members of the Royal Family. The fleet includes the Airbus A321-200NX G-GBNI and two Dassault Falcon 900LX jets. The Falcon 900LX jets handle shorter European diplomatic hops under the KRH645 and KRH646 callsigns. The flight from Southampton to Heathrow comes as the UK government continues its diplomatic engagements across Europe. No news outlet reported a specific event tied to this flight.

The aircraft's arrival at Heathrow, rather than at its home base at RAF Northolt, is a routine occurrence for the fleet. Before this leg, G-ZAHS had flown from Southampton to Southampton on November 12, covering 5 nm in 24 minutes. The aircraft's previous tracked landing before departing Southampton was about 2 days earlier, at Bodø Airport.

The aircraft's departure airport, Southampton, has a longest runway of 6,191 feet and sits at an elevation of 44 feet. In contrast, London Heathrow's longest runway measures 12,799 feet with an elevation of 83 feet. The Falcon 900LX burns an estimated 260 US gallons of fuel per hour.

On November 10, G-ZAHS flew from Bodø to Bodø, a 16-minute flight of 14 nm. The longest leg in the fleet's recent history was by G-GBNI on November 1, from Northolt to London, Essex, covering 3,693 nm. The Falcon 900LX has a top speed of Mach 0.87 or 482 knots. It is a 900EX with blended winglets, giving a 7 percent drag reduction.

The fleet's usual destinations include London Heathrow, Paris-Le Bourget, New York's John F. Kennedy International, Brussels, Munich, and Edinburgh. On November 12, the fleet's other Falcon 900LX, G-ZABH, flew from RAF Northolt to London Heathrow in 25 minutes covering 112 nm.