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Charles Simonyi Private jet tracker

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Charles Simonyi led the teams that built Microsoft Word and Excel after bringing WYSIWYG editing with him from Xerox PARC, where he had written Bravo. He left Microsoft in 2002 to found Intentional Software, which Microsoft bought back in 2017. He flew to the International Space Station as a spaceflight participant twice, in April 2007 and again in March 2009 — the only private citizen to make the trip twice — and the Simonyi Fund for Arts and Sciences has given to the Institute for Advanced Study, the Seattle Symphony and the Charles Simonyi Endowment for the Public Understanding of Science at Oxford.

N822LC is registered to Valkyrie 8X LLC of Seattle. There is a wrinkle worth stating: the FAA MASTER row carries the model as FALCON 7X, because Dassault certified the 8X as a derivative on the 7X type certificate, but the airframe is a Falcon 8X — S/N 492, built 2022 — and Flightradar24 and AirNav Radar both report it under ICAO type FA8X. This roster follows the airframe, so it is filed as an 8X and the poller matches on FA8X. A registry search on model alone will disagree.

The LLC name is the attribution. Valkyrie 8X LLC holds this jet the way Valkyrie 7X LLC held the Falcon 7X N786CS before it — an entity named for the aircraft type rather than the owner, which is a deliberate privacy pattern and not a registry confirmation of the person. Base is Boeing Field.

Note · We track Charles Simonyi's planes, not Charles Simonyi in person. Flight data shows when and where each plane flew. It does not show who was on board.

Aircraft owner
Valkyrie 8X LLC (Seattle) — the naming convention follows the airframe, as Valkyrie 7X LLC did before it
Home base

Where is Charles Simonyi's private jet right now?

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How much CO₂ do Charles Simonyi's private jet flights emit?

Over the last 7 completed flights we tracked, Charles Simonyi's private jet spent about 17 hours in the air. We estimate those flights put out 45.0 metric tons of CO₂.

Total flights

7

Total CO₂

45.0t

Flight hours

17h

What private jet does Charles Simonyi own?

We track one private jet for Charles Simonyi: a Dassault Falcon 8X with tail number N822LC.

Where has Charles Simonyi's private jet flown?

These are the last 7 flights we tracked for Charles Simonyi's private jet, newest first. Open a flight to see its route map, time in the air, top altitude and speed.

CompletedN822LC
Oct 31, 2026, 08:13 PM
Departure
KTTN — Trenton Mercer Airport
Arrival
KBFI — King County International Airport - Boeing Field
Flight path
Flight path for Charles Simonyi's N822LC from KTTN — Trenton Mercer Airport to KBFI — King County International Airport - Boeing Field
Duration
5h 8m
Max altitude
43,025 ft
Max speed
482 kts
Arrived
Nov 1, 2026, 01:22 AM
CompletedN822LC
Oct 29, 2026, 04:02 PM
Departure
KBFI — King County International Airport - Boeing Field
Arrival
KTTN — Trenton Mercer Airport
Flight path
Flight path for Charles Simonyi's N822LC from KBFI — King County International Airport - Boeing Field to KTTN — Trenton Mercer Airport
Duration
4h 5m
Max altitude
43,025 ft
Max speed
551 kts
Arrived
Oct 29, 2026, 08:07 PM
CompletedN822LC
Oct 23, 2026, 09:50 PM
Departure
KVNY — Van Nuys Airport
Arrival
KBFI — King County International Airport - Boeing Field
Flight path
Flight path for Charles Simonyi's N822LC from KVNY — Van Nuys Airport to KBFI — King County International Airport - Boeing Field
Duration
2h 9m
Max altitude
34,050 ft
Max speed
470 kts
Arrived
Oct 24, 2026, 12:00 AM
CompletedN822LC
Oct 23, 2026, 02:29 AM
Departure
KONT — Ontario International Airport
Arrival
KVNY — Van Nuys Airport

Read the flight report

Flight path
Flight path for Charles Simonyi's N822LC from KONT — Ontario International Airport to KVNY — Van Nuys Airport
Duration
24m
Max altitude
7,950 ft
Max speed
282 kts
Arrived
Oct 23, 2026, 02:53 AM
CompletedN822LC
Oct 23, 2026, 12:56 AM
Departure
KSJC — Norman Y. Mineta San Jose International Airport
Arrival
KONT — Ontario International Airport
Flight path
Flight path for Charles Simonyi's N822LC from KSJC — Norman Y. Mineta San Jose International Airport to KONT — Ontario International Airport
Duration
57m
Max altitude
35,025 ft
Max speed
541 kts
Arrived
Oct 23, 2026, 01:54 AM
CompletedN822LC
Oct 22, 2026, 01:59 AM
Departure
KBFI — King County International Airport - Boeing Field
Arrival
KSJC — Norman Y. Mineta San Jose International Airport
Flight path
Flight path for Charles Simonyi's N822LC from KBFI — King County International Airport - Boeing Field to KSJC — Norman Y. Mineta San Jose International Airport
Duration
1h 41m
Max altitude
41,025 ft
Max speed
480 kts
Arrived
Oct 22, 2026, 03:41 AM
CompletedN822LC
Oct 6, 2026, 05:11 PM
Departure
KBOI — Boise Air Terminal/Gowen Field
Arrival
KBFI — King County International Airport - Boeing Field
Flight path
Flight path for Charles Simonyi's N822LC from KBOI — Boise Air Terminal/Gowen Field to KBFI — King County International Airport - Boeing Field
Duration
2h 16m
Max altitude
20,050 ft
Max speed
485 kts
Arrived
Oct 6, 2026, 07:27 PM

Flight reports on Charles Simonyi's private jet

This report covers one recent flight in more detail.

Owner matches come from the FAA registry, adsb.lol (ODbL) and ADSB.fi data, and SEC filings. They may be incomplete or out of date. Methodology · Report an error. For observational use only.