Two Gulfstream / IAI midsize jets from the same stable, compared where it counts. The Gulfstream G100 (Astra SPX) carries 6–7 passengers with 2,900 nm of range; the Gulfstream G150 carries 8 with 3,000 nm. Cabin dimensions land at 5'7" × 4'9" versus 5'9" × 5'9", and runway numbers read 5,250 ft against 5,000 ft. Both sit in the same pricing class: an estimated €2,900–€3,900 per flight hour.
GULFSTREAM / IAI
The Gulfstream G100 (originally IAI Astra SPX) is a 2,900 nm midsize jet with a cruise speed comparable to larger super-midsize aircraft. Sharp-looking T-tail design and a long charter career.
FULL GULFSTREAM G100 (ASTRA SPX) PAGE →GULFSTREAM / IAI
The Gulfstream G150 brought wide-body comfort to the midsize segment — 3,000 nm range, a cabin wider than the Citation XLS and Hawker 900XP, and Gulfstream's renowned finish quality.
FULL GULFSTREAM G150 PAGE →SPECIFICATIONS
| METRIC | Gulfstream G100 (Astra SPX) | Gulfstream G150 |
|---|---|---|
| Passengers | 6–7 | 8 |
| Range | 2,900 nm | 3,000 nm |
| Cruise speed | Mach 0.82 | Mach 0.85 |
| Cabin height | 5'7" | 5'9" |
| Cabin width | 4'9" | 5'9" |
| Baggage | 55 cu ft | 80 cu ft |
| Runway | 5,250 ft | 5,000 ft |
CHARTER PRICING
| Geneva → Marrakech | Estimate on request |
| Dallas → Los Angeles | Estimate on request |
| Miami → Cabo San Lucas | Estimate on request |
| Geneva → Athens | Estimate on request |
One-way estimates from our pricing engine (standard season), estimated, confirmed quote within 1–2 hours.
EXPERT VERDICT
the Gulfstream G150 answers with range / non-stop reach, cabin comfort, group capacity, airport access and speed & block time. Both sit in the midsize jet class, so charter pricing is broadly aligned — let the use case (range, group size, airport pair) drive the final call.
Range / non-stop reach
Gulfstream G150
3,000 nm of range — the better choice for transcontinental and intercontinental missions.
Cabin comfort
Gulfstream G150
Taller and/or wider cabin (5'9" × 5'9") — better for long flights and stand-up movement.
Group capacity
Gulfstream G150
Seats up to 8 — the right pick when the manifest grows.
Airport access
Gulfstream G150
Shorter 5,000 ft balanced-field requirement — opens up restricted alpine, island and city-adjacent airfields.
Speed & block time
Gulfstream G150
Cruise of Mach 0.85 — shaves meaningful minutes off every long leg.
Verdict based on published manufacturer specifications, charter market data and Limitless Sky brokerage experience.
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Tell us your route — our desk returns estimated prices on both aircraft straight away and confirmed options within 1–2 hours, so you can compare like-for-like on your exact mission.
CHOOSE WITH CONFIDENCE
A tailored summary for the Gulfstream G100 (Astra SPX) and Gulfstream G150: the deciding reasons in this matchup, plus the buyer archetypes each aircraft serves best.
GULFSTREAM / IAI
BEST FOR
Stand-up cross-Europe travel
Flat-floor cabin for 3–4 hour legs with full bar and lavatory.
8-seat board offsites
Comfortable double-club layout for executive teams.
US transcontinental
Non-stop east-coast to west-coast missions with full payload.
Sport & ski groups
Cabin volume for extended-stay baggage without payload sacrifice.
GULFSTREAM / IAI
BEST FOR
Larger party charters
Up to 8 seats vs 7 on the Gulfstream G100 (Astra SPX) — the natural pick when the manifest grows last-minute.
Stand-up cross-Europe travel
Flat-floor cabin for 3–4 hour legs with full bar and lavatory.
8-seat board offsites
Comfortable double-club layout for executive teams.
US transcontinental
Non-stop east-coast to west-coast missions with full payload.
PROS & CONS
GULFSTREAM / IAI
PROS
CONS
GULFSTREAM / IAI
PROS
CONS
REAL-WORLD MISSIONS
Four scenarios our charter desk sees regularly — and which of these two we would actually quote.
SCENARIO 01
Larger cabin seats the full group (8).
SEE FULL AIRCRAFT →SCENARIO 02
Larger cabin seats the full group (8).
SEE FULL AIRCRAFT →SCENARIO 03
Curated example: Teterboro → Miami sits in the Gulfstream G100 (Astra SPX)'s sweet spot.
SEE FULL AIRCRAFT →SCENARIO 04
Larger cabin seats the full group (8).
SEE FULL AIRCRAFT →ROUTE RECOMMENDATIONS
| ROUTE | DISTANCE | RECOMMENDED | WHY |
|---|---|---|---|
| London → Moscow | 1,500 nm | Either | Both aircraft fly this comfortably non-stop — choose on cabin and price. |
| Geneva → Marrakech | 1,250 nm | Either | Both aircraft fly this comfortably non-stop — choose on cabin and price. |
| Teterboro → Aspen | 1,580 nm | Either | Both aircraft fly this comfortably non-stop — choose on cabin and price. |
| Paris → Cairo | 1,800 nm | Either | Both aircraft fly this comfortably non-stop — choose on cabin and price. |
Distances are great-circle approximations; actual fuel planning accounts for winds, weather and reserves.
FAQ
The Gulfstream G100 (Astra SPX) has a published range of 2,900 nm; the Gulfstream G150 is rated at 3,000 nm. The longer-range aircraft opens up more non-stop city pairs without a tech stop.
Cruise speeds are Mach 0.82 for the Gulfstream G100 (Astra SPX) and Mach 0.85 for the Gulfstream G150. The difference in block time grows with trip length; on a Teterboro → Miami trip it is usually minutes rather than hours.
The Gulfstream G100 (Astra SPX) seats 6–7; the Gulfstream G150 seats 8. Charter prices below assume a typical executive layout — high-density configurations are available on request.
From our pricing engine's class rates: the Gulfstream G100 (Astra SPX) at an estimated €2,900–€3,900 per flight hour, and the Gulfstream G150 at an estimated €2,900–€3,900 per flight hour. These are estimates; the confirmed quote within 1–2 hours depends on positioning, season and airport fees.
The Gulfstream G100 (Astra SPX) cabin is 5'7" high and 4'9" wide; the Gulfstream G150 is 5'9" high and 5'9" wide. Baggage: 55 cu ft vs 80 cu ft.
For trips within the Gulfstream G100 (Astra SPX)'s published 2,900 nm, either aircraft can fly non-stop and the choice comes down to cabin (5'7" vs 5'9" cabin height), seats (6–7 vs 8) and price. Beyond that, the Gulfstream G150 (3,000 nm) flies non-stop where the Gulfstream G100 (Astra SPX) may need a fuel stop. Real-world range drops with passengers, bags, winds and winter reserves, so we confirm it per trip.
Both belong to the Midsize Jet category, but range, payload and runway performance differ. See the route-recommendations table on this page for our specific pick per corridor.
Cabin comfort is the everyday difference passengers feel most. Both the Gulfstream G100 (Astra SPX) and Gulfstream G150 sit in the Midsize Jet class, so cabin height, width and layout differ subtly — on flights over 3 hours those details matter more than raw range. Ask us for a side-by-side floorplan.
Both aircraft in this comparison are operated under ARG/US, Wyvern or IS-BAO safety programmes when chartered through Limitless Sky. Safety is driven by operator, crew currency and maintenance regime — not the airframe. We only book operators meeting our verified due-diligence checklist.
The hourly class rate is only one input. Total mission cost includes positioning legs, overnight fees, landing/handling, catering, de-icing and FET where applicable. Our confirmed quote itemises every line so there are no surprises.
MORE COMPARISONS
GULFSTREAM G100 (ASTRA SPX) × GULFSTREAM G150 CLUSTER
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EDITORIAL GUIDES
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POPULAR COMPARISONS
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