Gulfstream · Forthcoming

Gulfstream G400

Gulfstream's next entry to the large cabin — in flight test, with the new generation's DNA intact.

Forward planning — the new-generation Gulfstream sized for Singapore-class missions.

The G400 will open Gulfstream's new-generation family from below: the G500's cross-section and ten panoramic windows on 4,200-nautical-mile missions, behind Pratt & Whitney PW812GA engines and the Symmetry deck. Three test aircraft are flying, and the type set a Washington–Farnborough city-pair record on sustainable fuel during its European debut in June 2026.

Certification is pending without a public date — Gulfstream's own figures remain preliminary — so this page is a register of interest rather than a booking: the future large-cabin entry point, watched closely by our acquisitions desk.

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The cabin

Inside the Gulfstream G400

Height6 ft 2 in / 1.88 m

Width7 ft 7 in / 2.31 m

Length36 ft 4 in / 11.1 m

Baggage1,441 cu ft cabin volume

9 typical · up to 12 Seat Table Galley / lavFwd ←Concept arrangement per Gulfstream materials — up to two and a half living areas: club four, dining or conference grouping, and a divan half-zone. Interior imagery reflects the manufacturer's mock-up until completions begin.

First flight August 2024 — three test aircraft flying

DC–Farnborough city-pair record on SAF, June 2026

G500 cross-section; 3,255 ft cabin altitude

Certification pending — register interest

The Gulfstream G400 - manufacturer visualisation

The G400 cabin, photographed on Gulfstream's mock-up

What it’s for

Flown best for

The next entry point

New-generation Gulfstream for the missions most fleets actually fly.

The acquisitions watch

Delivery positions tracked for principals planning ahead.

Today's bridge

Current-generation alternatives proposed while the ink dries.

Range & popular routes

Where it takes you

Departing

Drawing the world…

8 of 20 listed cities non-stop from Sydney — the ring is the Gulfstream G400’s certified 4,200 nm range, drawn as a true great circle. Winds, payload and routing affect real-world reach; we confirm every sector before we quote it.

0 nmMaximum range

Bar length shows each sector’s distance against the full 4,200 nm range.

Not yet in service — figures are Gulfstream's preliminary numbers, quoted as such.

Specifications

The detail

PassengersUp to 12sleeps 5 · preliminary

Range4,200 nmM0.85 · preliminary

SpeedMach 0.90 MMOpreliminary

Ceiling51,000 ft

StatusIn flight testfirst flight Aug 2024

Engines2 × P&W PW812GA

Good to know

Frequently asked

When will the G400 enter service?

Gulfstream has not published a date — the programme first flew in August 2024 and is deep in flight test, with certification pending. We track it for clients planning next-generation fleets, and quote only what the manufacturer has committed to.

What will the G400 offer?

Preliminary figures: 4,200 nautical miles at Mach 0.85, the G500's cabin cross-section with ten panoramic windows, a 3,255-foot cabin altitude, and up to twelve passengers sleeping five — the new generation's air and light, right-sized.

What flies that mission today?

The G280 within the marque, or the Challenger and Praetor classes across the market — all bookable now. We bridge the wait candidly, and register acquisition interest for those planning beyond it.

Charter

Charter the Gulfstream G400

Tell us your route and dates, and we’ll confirm availability and an all-in price — for this aircraft or the ideal alternative for your journey.

Request a charter

Or call +61 1800 538 729 — most enquiries answered within the hour.

01
Tell us the journey
Route, dates, passengers and any preferences — in a single message or call.
02
We return options
Tailored aircraft and a clear, all-in price — usually within the hour.
03
Fly privately
Arrive minutes before departure; we handle every detail, end to end.

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