Gulfstream G100/Astra SPX: how 51 jets are really flown
The busiest 5% made more than 14 flights a month and the quietest 5% fewer than 3: over five times as many, on the same type.
The hardest-worked 5% log ≈472 h a year or more; the easiest-used, ≈46 h or less. The middle aircraft sits at ≈107 h.
For the easiest-used 5%, a short runway is rare: 12% of departures or fewer. At the harder end, 79% or more leave from one.
One in twenty flies short hops on 69% or more of its legs; at the easier end it is 16% or less.
Fatigue
What each landing and pressurization cycle costs the structure: landings per hour and short hops.
The middle G100 flies 1.5 hours for every landing. One in twenty lands every 0.9 hours or sooner, the most cycles for its time.
Middle half 1.1–1.9 : 1Harder end: 5% at 0.9 : 1 or lessEasier end: 5% at 2.8 : 1 or more
Middle half 30–54%Harder end: 5% at 69% or moreEasier end: 5% at 16% or less
Middle half 269–628 nmLowest 5%: 203 nm or lessHighest 5%: 1,037 nm or more
Context, not graded: the tint marks the harder and easier end of the fleet.
Spread of trip lengths
All 51 G100sThe data behind it
Every measure for the 51 North American G100s, 1 Aug 2025 – 31 Jul 2026.| Measure | Fleet median | Middle half |
|---|---|---|
| Hours per landing Each aircraft’s average flight hours per landing | 1.5 : 1 | 1.1–1.9 : 1 |
| Short hops Share of legs under 300 nm | 38% | 30–54% |
| Leg length Median leg | 400 nm | 269–628 nm |
Corrosion
What the air around it does overnight: salt, damp and freeze–thaw.
Too few of these aircraft spend their nights where we can place them to compare salt air, damp hours or freeze–thaw: only 26 of the 51 North American G100s were placed on enough nights in the twelve months, and a comparison needs at least 30.
Context, not graded: the tint marks the harder and easier end of the fleet.
The data behind it
| Measure | Fleet median | Middle half |
|---|
Engines and brakes
What departures ask of engines, brakes and tires: heat and height, and runway length.
The middle G100 leaves from a short runway on 37% of its departures. One in twenty does on 79% or more.
Middle half 24–55%Harder end: 5% at 79% or moreEasier end: 5% at 12% or less
Middle half 0–5%Harder end: 5% at 14% or moreEasier end: 5% at -0%
Middle half 1,139–1,956 ftHarder end: 5% at 2,482 ft or moreEasier end: 5% at 435 ft or less
Context, not graded: the tint marks the harder and easier end of the fleet.
Runway margin at departure
2,882 departuresThe data behind it
Every measure for the 51 North American G100s, 1 Aug 2025 – 31 Jul 2026.| Measure | Fleet median | Middle half |
|---|---|---|
| Short runways Departures where the longest runway was under 1.25× the takeoff distance | 37% | 24–55% |
| Hot, high takeoffs Departures at 5,000 ft density altitude or more | 2% | 0–5% |
| Density altitude Typical density altitude at takeoff | 1,647 ft | 1,139–1,956 ft |
Utilization
How steadily the fleet is used: flights, flying days and estimated hours.
The middle G100 made 5 flights a month. The busiest 5% made 14 or more, the quietest 3 or fewer.
Middle half 3.9–9.5Harder end: 5% at 14.8 or moreEasier end: 5% at 3.0 or less
Middle half 2.9–4.8Harder end: 5% at 9.2 or moreEasier end: 5% at 2.4 or less
Middle half 69–143 hHarder end: 5% at ≈472 h or moreEasier end: 5% at ≈46 h or less
Context, not graded: the tint marks the harder and easier end of the fleet.
Month by month
12 monthsMedian flights per aircraft that flew that month · darker bar is the busiest month, September 2025
The data behind it
Every measure for the 36 of the 51 North American G100s with at least 40% of their flights tracked, 1 Aug 2025 – 31 Jul 2026.| Measure | Fleet median | Middle half |
|---|---|---|
| Flights a month In the months it flew | 5.5 | 3.9–9.5 |
| Days flown a month Days with at least one flight | 3.8 | 2.9–4.8 |
| Estimated hours a year From time in the air | ≈107 h | 69–143 h |
Buying, selling or financing a G100?
See where your G100 sits in the fleet.
Enter a tail number to place it against these 51 aircraft. TailCheck grades it on Fatigue, Corrosion, Engines and brakes, and Utilization, with every percentile shown.
Where G100s are based and fly
John C.
Munro Hamilton is home to more G100s than any other field, 5 of the 37 with a home base. Dekalb-Peachtree–Savannah is the busiest route: 63 flights by 2 different aircraft.
Where G100s are based
| Field | Share | Aircraft |
|---|---|---|
| John C. Munro Hamilton | 5 | |
| Dekalb-Peachtree | 3 | |
| Fort Worth Meacham | 2 | |
| Jacksonville | 2 | |
| St. Petersburg-Clearwater | 2 | |
| Savannah | 2 |
Busiest G100 routes
| Between | Flights |
|---|---|
| Dekalb-Peachtree ⇄ Savannah | 63 flights |
| Kitchener/Waterloo ⇄ Toronto Pearson | 53 |
| Dane ⇄ Dekalb-Peachtree | 40 |
| John C. Munro Hamilton ⇄ Toronto Pearson | 37 |
| Lawrenceville, Gwinnett -Briscoe ⇄ Marietta, Cobb -McCollum | 31 |
| Fort Worth Meacham ⇄ Gregg | 30 |
Longest G100 flights
| Between | Distance · time |
|---|---|
| Anchorage → Montreal-Pierre Elliott Trudeau | 2,713 nm · 5 h 54 min |
| Anchorage → Kingston/Norman Rogers | 2,689 nm · 6 h 49 min |
| Anchorage → John C. Munro Hamilton | 2,642 nm · 7 h 13 min |
| Hickam → Scottsdale | 2,538 nm · 4 h 58 min |
| Halifax Stanfield → London Biggin Hill | 2,496 nm · 5 h 11 min |
Busiest G100s this year
The busiest G100 made 24 flights a month, four times the middle aircraft.
Even the tenth on this list made 9.
Ranked by flights a month · updated monthly
| # | Tail | Base | Flights a month | Estimated hours a year | Record |
|---|---|---|---|---|---|
| 1 | C-FDAX | Kitchener/Waterloo | 24 | 434 h | Check this tail → |
| 2 | N327GA | Dekalb-Peachtree | 15 | 255 h | Check this tail → |
| 3 | C-FRJZ | John C. Munro Hamilton | 15 | 652 h | Check this tail → |
| 4 | N962A | Fort Worth Meacham | 14 | 193 h | Check this tail → |
| 5 | C-GBSW | John C. Munro Hamilton | 14 | 589 h | Check this tail → |
| 6 | N331SK | — | 12 | 165 h | Check this tail → |
| 7 | N331AJ | Savannah | 11 | 107 h | Check this tail → |
| 8 | N230TG | Savannah | 10 | 138 h | Check this tail → |
| 9 | N4SF | Marietta, Cobb -McCollum | 10 | 107 h | Check this tail → |
| 10 | N946HC | Dekalb-Peachtree | 10 | 116 h | Check this tail → |
G100 vs other aircraft of its size
Medians for each North American fleet, same window and method.
| Type | Tracked | Flights a month | Hours a year | Median leg | Hours per landing | Short hops |
|---|---|---|---|---|---|---|
| Gulfstream G100/Astra SPX | 51 | 5.5 | 107 h | 400 nm | 1.5 : 1 | 38% |
| Hawker 800XP/850XP/900XP/750 | 396 | 9.8 | 157 h | 401 nm | 1.4 : 1 | 40% |
| Cessna Citation Latitude | 361 | 35.0 | 582 h | 363 nm | 1.4 : 1 | 43% |
| Cessna Citation Sovereign | 287 | 6.5 | 113 h | 411 nm | 1.4 : 1 | 39% |
| Bombardier Learjet 60 | 173 | 9.8 | 179 h | 444 nm | 1.4 : 1 | 36% |
G100/Astra SPX on paper
Certified figures aren’t shown for the Gulfstream G100/Astra SPX: we haven’t cited a type certificate data sheet for it yet.
G100 questions
How many hours a year does a G100/Astra SPX fly?
The median North American G100/Astra SPX flies about 107 estimated hours a year; the middle half sits between 69 and 143. About 1 in 20 flies more than 472.
How often does a G100/Astra SPX fly?
5 flights a month on 4 flying days at the median. About 1 in 20 makes more than 14 flights a month.
How long is a typical G100/Astra SPX flight?
The median leg is 400 nm. About 1 in 20 aircraft average more than 1,037 nm a leg.
How often do G100/Astra SPX aircraft use short runways?
At the median, 37% of departures are from fields whose longest runway is under 1.25 times the type’s takeoff distance. About 1 in 20 keep it to 12% or less.
Is a high-hours G100/Astra SPX a bad buy?
Not by itself. High hours on long legs are gentler on the structure than the same hours on short hops. Look at hours per landing and short-hop share alongside hours.
Can a G100/Astra SPX fly across the Atlantic?
Yes. In our tracking window, 2 of the 51 North American aircraft flew 5 nonstop crossings between the Americas and Europe or Africa. The busiest were St. John's–Birmingham (2 flights), Halifax Stanfield–Bristol (1 flights), Halifax Stanfield–London Biggin Hill (1 flights).
Where are most G100/Astra SPX aircraft based?
In North America, John C. Munro Hamilton is home to the most, followed by Dekalb-Peachtree and Fort Worth Meacham. A base is the field an aircraft touches on most of its flying days, month after month.
Cite this data
The Aircraft Ledger. “Gulfstream G100/Astra SPX fleet statistics.” Data to 31 July 2026. theaircraftledger.com/aircraft/gulfstream/g100-astra-spx
Embed a chart
<iframe src="https://theaircraftledger.com/embed/fleet/gulfstream-g100-astra-spx/fatigue" title="Fatigue" width="100%" height="1180" style="border:0;max-width:960px" loading="lazy"></iframe>Method: Gulfstream G100/Astra SPX aircraft with most departures in North America and at least 20 tracked flights in the latest twelve full months. Flight measures, bases, routes and rankings use ADS-B tracking 1 Aug 2025 – 31 Jul 2026; corrosion and engines-and-brakes exposure use the same twelve months, or an aircraft’s record since 1 Jan 2025 when it had too few nights or departures in them. Estimated hours from time in the air. Tracking misses some flights, so counts and hours are minimums. ADS-B coverage grew over the window, so we don’t compare one year with the last. Tracking can’t tell one variant from another; the variant split, the busiest table’s variants and the age table use the FAA registry, so they cover US-registered aircraft only. We assume the longest runway at each field, so short-runway figures are conservative. Short-runway figures use the manufacturer’s published takeoff distance where our sources hold one for every variant (the longest, where tracking can’t tell variants apart), and a reference figure otherwise. Corrosion measures cover the aircraft we can place on enough nights, some over the longer window when the twelve months had too few. Charter status is our own list, built from FAA records and public listings of charter aircraft; aircraft flown by a fractional program (NetJets, Flexjet and the like) are counted as fractional, not charter. About our data