N668FX is a 2014 Gulfstream G650, registered to Flexjet LLC of Cleveland, OH. It works in Flexjet's floating charter fleet: on the Part 135 certificate (J7SA), and positioned wherever the next trip starts rather than kept at one airport. In the twelve months to 7 September 2026 it flew 409 legs on 190 days, about 244,853 nautical miles. That is 79% more than the median Gulfstream G650 in U.S. charter service (28 airframes tracked), which puts it among the harder-working examples of the type. It touched 117 airports but keeps returning to the same city pairs: 65% of legs repeat a route already flown in the year.

Photo: a Gulfstream G650, representative of the type, not this airframe.

Flexjet and the certificate

N668FX is on Flexjet's FAA Part 135 operations specifications (D085), designator J7SA, Rochester (ROC) certificate office. Hourly pricing for the type: Gulfstream G650 charter cost.

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How N668FX is used

Average leg 599 nm, one-to-two-hour stages. April was the busiest month at 53 legs; November the quietest at 24. 33% of departures fall on a Saturday or Sunday, a leisure-heavy pattern. Longest leg tracked: San Francisco International Airport (KSFO) to Opa-locka Executive Airport (KOPF), 2,240 nm on 1 March 2026. Last seen Westchester County Airport (KHPN) to Hanscom Field (KBED) on 7 September 2026.

409
Legs, 12 months
190
Days flown
244,853
Nautical miles
117
Airports visited

Most-used airports

Repeated routes

  • Chicago Midway International Airport (KMDW) → Cuyahoga County Airport (KCGF) 2×
  • Gabreski Airport (KFOK) → Westchester County Airport (KHPN) 2×
  • Miami International Airport (KMIA) → Teterboro Airport (KTEB) 2×

No airport accounts for more than 6% of departures.

About 22% of legs cross a border, most often to London Farnborough Airport (EGLF), Milan Linate Airport (LIML), Paris Le Bourget Airport (LFPB).

Our own aggregate of public ADS-B archives for Mode S A8D284, 10 September 2025 to 7 September 2026; counts are floors, not exact totals.

Registry record

RegistrationN668FX
Serial number6073
TypeGulfstream G650 (FAA code GVI (G650))
Year of manufacture2014
RegistrantFlexjet LLC (LLC), Cleveland, OH
Certificate issued9 June 2023
Airworthiness date21 June 2023
Registration expires30 June 2030
Mode S codeA8D284

NTSB record

Nothing under N668FX in the NTSB aviation database (1 May 2026 download).

Gulfstream G650 type data

Passengers (typical)19
Range7,000 nm
Cruise516 kt high-speed; long-range 488 kts
Ceiling51,000 ft
Engines2x Rolls-Royce BR725 A1-12
Cabin46.8 ft × 8.5 ft × 6.4 ft
Baggage195 cu ft
Takeoff distance5,858 ft

Fleet, operators and comparisons: Gulfstream G650. Pricing: charter cost.

Sources

FAA Releasable Aircraft Database, 14 May 2026 release (live FAA record); FAA Part 135 operations specifications (D085); public ADS-B archives (adsb.lol) reduced by The Jet Finder; NTSB aviation database. Type figures are manufacturer-published for the Gulfstream G650 family, not this airframe. Corrections.