Gulfstream G450 / G350 vs Gulfstream GIV / GIV-SP
The G450 flies further: 4,350 nm against 4,220 nm for the GIV-SP. The GIV-SP has the bigger cabin: 1,658 cu ft against 1,525 cu ft for the G450. They are level at 476 kts.
G450 or GIV-SP?
Which flies further, the G450 or the GIV-SP?
The G450 flies further: 4,350 nm against 4,220 nm for the GIV-SP.
Which has the bigger cabin, the G450 or the GIV-SP?
The GIV-SP has the bigger cabin: 1,658 cu ft against 1,525 cu ft for the G450.
Which is faster, the G450 or the GIV-SP?
They are level at 476 kts.
Which seats more passengers?
They are level at up to 14.
Which costs more to buy, the G450 or the GIV-SP?
Pre-owned, the G450 sells for about $8.5 million to $19.5 million (October 2026) and the GIV-SP for about $2.3 million to $6.5 million (November 2026). New, they listed at $43 million (2004) and $33 million (1992).
Which is easier to charter in the US?
105 G450 and 134 GIV-SP are on the US Part 135 charter list today. Both charter at heavy jet rates; availability on your dates decides the price.
G450 vs GIV-SP specifications
Verified figures, checked October 2026. Fleet counts from the FAA Part 135 list (2 September 2026).
| Specification | G450 Gulfstream | GIV-SP Gulfstream |
|---|---|---|
| Performance | ||
| Range | 4,350 nm (8,056 km) (best) | 4,220 nm (7,815 km) |
| High-speed cruise | 476 kts | 476 kts |
| Long-range cruise | 459 kts | 459 kts |
| Maximum speed | Mach 0.88 | Mach 0.88 |
| Maximum altitude | 45,000 ft | 45,000 ft |
| Take-off distance | 5,600 ft | 5,450 ft (best) |
| Landing distance | 2,663 ft | 2,650 ft (best) |
| Cabin | ||
| Typical charter seats | 14 | 13 to 14 |
| Maximum seats | 16 | 19 (best) |
| Beds (typical layout) | 4 | 6 (best) |
| Cabin zones | 3 | 3 |
| Cabin length | 40 ft 4 in (12.29 m) | 45 ft 1 in (13.74 m) (best) |
| Cabin width | 7 ft 4 in (2.24 m) | 7 ft 4 in (2.24 m) |
| Cabin height | 6 ft 2 in (1.88 m) (best) | 6 ft 1 in (1.85 m) |
| Cabin volume | 1,525 cu ft | 1,658 cu ft (best) |
| Baggage | 169 cu ft, reachable in flight | 169 cu ft, reachable in flight |
| Engines and weights | ||
| Engines | 2 × Rolls-Royce Tay 611-8C | 2 × Rolls-Royce Tay 611-8 |
| Thrust per engine | 13,850 lbf | 13,850 lbf |
| Maximum take-off weight | 74,600 lb | 74,600 lb |
| Fuel capacity | 29,500 lb | 29,500 lb |
| Price and ownership | ||
| First delivered | 2004 | 1987 |
| In production | No | No |
| New price | $43M (2004) | $33M (1992) |
| Pre-owned price | $8.5M to $19.5M | $2.3M to $6.5M |
| Operating cost per hour | $13,218 | $13,330 |
| Charter fleet | ||
| On the US charter list | 105 aircraft | 134 aircraft (best) |
Gold marks the best figure in each row. Take-off distance: At maximum take-off weight, sea level. Cabin length: Manufacturers measure cabin length differently; volume is the fairer comparison. Operating cost per hour: As reported; some sources quote variable cost only, others include fixed costs. See the basis under each aircraft.
Both aircraft at a glance
Gulfstream G450 / G350
- Seats
- 14 (max 16)
- Range
- 4,350 nm
- Cabin
- 1,525 cu ft
- In production
- No
- Charter fleet
- 105 in the US
US operators: Flexjet, Executive Jet Management, Solairus Aviation
G450 specs, interior and price →
Gulfstream GIV / GIV-SP
- Seats
- 13 to 14 (max 19)
- Range
- 4,220 nm
- Cabin
- 1,658 cu ft
- In production
- No
- Charter fleet
- 134 in the US
US operators: Prime Jet, STA Jets, Fly Alliance
GIV-SP specs, interior and price →Compare with other heavy jets
Questions, answered
Still deciding? A charter specialist will talk you through aircraft, airports and price, with no obligation.
Ask a specialistWhich flies further, the G450 or the GIV-SP?+
The G450 flies further: 4,350 nm against 4,220 nm for the GIV-SP.
Which has the bigger cabin, the G450 or the GIV-SP?+
The GIV-SP has the bigger cabin: 1,658 cu ft against 1,525 cu ft for the G450.
Which is faster, the G450 or the GIV-SP?+
They are level at 476 kts.
Which seats more passengers?+
They are level at up to 14.
Which costs more to buy, the G450 or the GIV-SP?+
Pre-owned, the G450 sells for about $8.5 million to $19.5 million (October 2026) and the GIV-SP for about $2.3 million to $6.5 million (November 2026). New, they listed at $43 million (2004) and $33 million (1992).
Which is easier to charter in the US?+
105 G450 and 134 GIV-SP are on the US Part 135 charter list today. Both charter at heavy jet rates; availability on your dates decides the price.
Where these numbers come from
- Aviation Safety Network: Gulfstream IV family (GLF4) occurrences
- AIN: EASA approves 100 ft decision height for EVS-equipped Gulfstreams (Aug 2008): EVS II standard on new G450s, optional on the G350
- GlobalAir: Gulfstream G550 specifications (Oct 2026): Rolls-Royce BR710, MTOW 91,000 lb, range 6,750 nm, cabin 43 ft 11 in, 1,669 cu ft, takeoff 5,910 ft, ceiling 51,000 ft
- Guardian Jet: Gulfstream G450 brochure, performance, market, operating costs (Oct 2026): 19 for sale, asks $8,495,000 to $19,495,000, model years 2005 to 2014
- Aviation Week: Gulfstream G450, good value in a large cabin (Oct 2020): 4,200 nm at Mach 0.80 with 8 passengers, 3,300 nm at Mach 0.85, 12 in longer nose from the G550, PlaneView with HUD and EVS standard, forward and aft lavatories standard, about 200 nm more range than the GIV and GIV-SP
- Civil Aviation Authority of New Zealand: Gulfstream G-IV type acceptance report (May 2010): FAA Type Certificate A12EA; the GIV-X is available as the G350 and the G450
- CRAFT: Gulfstream G450 ownership and operating costs (Oct 2026): $13,218 per flight hour at 200 hours a year, annual total $2,643,567
- Jetcraft: Gulfstream G450 overview, 2005 to present (Mar 2017): cabin volume 1,525 cu ft
- Solairus Aviation: OXC based Gulfstream G450 charter sheet (May 2024): 12 passengers, sleeps 4, aft galley, Ku-band Wi-Fi
- Wikipedia: Gulfstream IV, G450 section: FAA approval 12 August 2004, last G450 delivered 19 January 2018, 365 built
- Guardian Jet: 2012 Gulfstream G450 N702TR S/N 4259 specifications (Apr 2023): 14 passengers, four-place divan opposite two club seats aft
- CRAFT: Gulfstream G450 specifications (Oct 2026): range 4,350 nm from the October 2015 brochure, Mach 0.80, 8 passengers, 3 crew, NBAA IFR reserves; maximum operating Mach 0.88
- Guardian Jet: 2016 Gulfstream G450 N904TS S/N 4347 specifications (Dec 2023): 16 passengers, two four-place divans aft
- Berard Aviation via AvPay: Gulfstream G450 N200CK S/N 4304 for sale (Sep 2026): 13 passengers plus jump seat, three-place berthable divan
- Guardian Jet: 2010 Gulfstream G450 N48PL S/N 4181 specifications (Sep 2019): in-flight accessible baggage bay
- AircraftExchange: 2010 Gulfstream G450 N908CC S/N 4195 listing (2026): 14 passengers, aft galley, forward and aft lavatories, Gogo Avance L5
- Guardian Jet: 2010 Gulfstream G450 N804AG S/N 4199 specifications (Sep 2022): 12 passengers, aft galley, one aft lavatory, cockpit jump seat
- Aviation Safety Network: Gulfstream G450 N667HS, Salzburg, 11 April 2017 (UUS Austria report BMVIT-85.245)
- EASA: Type Certificate Data Sheet EASA.IM.A.070, Issue 13 (Aug 2026): GIV-X also known as the G450 (ASC 005) and the G350 (ASC 004), FAA certification 12 August 2004, EASA 19 November 2004
- GlobalAir: Gulfstream G450 specifications (Oct 2026): internal baggage 169 cu ft
- Aviation Safety Network: Gulfstream G450 HZ-A23, Jeddah, 13 July 2022, runway excursion, written off
- Aviation Week: Gulfstream ends G450 as it launches G500 (Nov 2016): last G450 to be delivered in early 2018
- Business Jet Traveler: Gulfstream G450 (2026): price new $43M, production 2005 to 2016
- AIN: Sequence of miscues leads to G450 nose gear collapse (Apr 2018), on the Austrian investigation report
- Guardian Jet: 1998 Gulfstream GIV-SP N156WJ S/N 1347 specifications (Aug 2026): 14 passengers, three cabin areas, aft galley, aft lavatory
- CRAFT: Gulfstream GIV-SP ownership and operating costs (Oct 2026): $13,330 per flight hour at 200 hours a year, annual total $2,666,017
- Jetcraft: Gulfstream GIV-SP overview, 1992 to 2002 (Jan 2019): cabin volume 1,658 cu ft
- Solairus Aviation: AFW based Gulfstream GIV-SP charter sheet (Jul 2020): seats 14, sleeps 6, forward galley, forward and aft lavatories, aft stateroom with hard door, baggage 169 cu ft
- Hagerty Jet Group via AircraftDealer: 2002 Gulfstream GIV-SP N119AF S/N 1489 specifications (Aug 2025): 13 passengers, aft galley, forward crew lavatory and aft lavatory, SwiftBroadband
- CRAFT: Gulfstream GIV-SP specifications (Oct 2026): cabin width 7 ft 4 in
- Jet Evolution via AviationTrader (Controller listing 257793937): 2002 Gulfstream GIV-SP N816SP S/N 1452 (2026): up to 12 passengers, aft galley, one aft lavatory, Gogo Avance L5, baggage accessible in flight
- Jetcraft: 2000 Gulfstream GIV-SP S/N 1398 specifications (Jun 2026): 13 passengers, two-place club opposite a three-place divan, aft galley, aft lavatory, jump seat
- Guardian Jet: 2001 Gulfstream GIV-SP N502PC S/N 1435 specifications (Aug 2023): large baggage compartment, accessible in flight from the aft lavatory
- Guardian Jet: 2001 Gulfstream GIV-SP N877A S/N 1461 specifications (Dec 2025): 13 passengers, aft galley with microwave, convection oven and ice drawer, ATG 4000
- Aviation Safety Network: Gulfstream G-IV N121JM, S/N 1399, built 2000, Bedford, 31 May 2014
- GlobalAir: Gulfstream IV-SP specifications (Nov 2026): internal baggage 169 cu ft
- Aviation Safety Network: Gulfstream G-IVSP HI1050, S/N 1482, Santo Domingo, 15 December 2021 (CIAA preliminary report, Jan 2022)
- NTSB: Gulfstream G-IV N121JM, Bedford, Massachusetts, 31 May 2014, report AAR-15-03
- BEA: Accident on 13 July 2012 at Le Castellet aerodrome, Gulfstream G-IV N823GA, final report (Oct 2015)
- Business Jet Traveler: Gulfstream G IV SP (2026): 30 on the market, asking prices $2.3M to $6.5M, average ask $4.4M
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