N664FX is a 2018 Gulfstream G650ER, registered to Plm Services 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 397 legs on 185 days, about 238,920 nautical miles. That is 161% more than the median Gulfstream G650ER in U.S. charter service (64 airframes tracked), which puts it among the harder-working examples of the type. It touched 108 airports but keeps returning to the same city pairs: 64% of legs repeat a route already flown in the year.
Photo: a Gulfstream G650ER, representative of the type, not this airframe.
Flexjet and the certificate
N664FX is on Flexjet's FAA Part 135 operations specifications (D085), designator J7SA, Rochester (ROC) certificate office.
Book N664FX or a comparable Gulfstream G650ER
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Request a Quote →How N664FX is used
Average leg 602 nm, one-to-two-hour stages. December was the busiest month at 60 legs; June the quietest at 2. 31% of departures fall on weekends, a mix of business and leisure use. Longest leg tracked: Oakland International Airport (KOAK) to Boston Logan International Airport (KBOS), 2,335 nm on 9 February 2026. Last seen Rome Ciampino Airport (LIRA) to London Farnborough Airport (EGLF) on 6 September 2026.
Most-used airports
- Teterboro Airport (KTEB) 50
- Miami International Airport (KMIA) 18
- Dallas Love Field (KDAL) 17
- San Jose Mineta International Airport (KSJC) 14
- San Francisco International Airport (KSFO) 13
Repeated routes
- Westchester County Airport (KHPN) → Miami International Airport (KMIA) 2×
- Buffalo Niagara International Airport (KBUF) → Palm Beach International Airport (KPBI) 2×
- Miami International Airport (KMIA) → Teterboro Airport (KTEB) 3×
No airport accounts for more than 11% of departures.
About 17% of legs cross a border, most often to Paris Le Bourget Airport (LFPB), Rome Ciampino Airport (LIRA), RAF Northolt (EGWU).
Our own aggregate of public ADS-B archives for Mode S A8C3A8, 10 September 2025 to 7 September 2026; counts are floors, not exact totals.
Registry record
| Registration | N664FX |
|---|---|
| Serial number | 6325 |
| Type | Gulfstream G650ER (FAA code GVI (G650ER)) |
| Year of manufacture | 2018 |
| Registrant | Plm Services LLC (Co-owned), Cleveland, OH |
| Certificate issued | 15 October 2025 |
| Airworthiness date | 10 February 2024 |
| Registration expires | 31 October 2032 |
| Mode S code | A8C3A8 |
NTSB record
Nothing under N664FX in the NTSB aviation database (1 May 2026 download).
Gulfstream G650ER type data
| Passengers (typical) | 19 |
|---|---|
| Range | 7,500 nm |
| Cruise | 516 kt high-speed; long-range 488 kts |
| Ceiling | 51,000 ft |
| Engines | 2x Rolls-Royce BR725 A1-12 |
| Cabin | 46.8 ft × 8.5 ft × 6.4 ft |
| Baggage | 195 cu ft |
| Takeoff distance | 6,299 ft |
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 G650ER family, not this airframe. Corrections.
