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| Gulfstream G100 vs G150 Operating Cost Per Flight Hour Breakdown 2026 Analysis |
Understanding the real operating cost per flight hour is critical before purchasing a mid-size business jet. Below is a detailed breakdown of variable and fixed costs for the Gulfstream G100 and Gulfstream G150 based on typical U.S. operations in 2026.
Direct Operating Cost Components
- Fuel burn
- Engine reserves
- Parts and maintenance reserves
- Routine inspections
- Consumables
Gulfstream G100 Estimated Cost Per Hour
Fuel
Average fuel burn: ~230 gallons per hour
Jet A average price estimate: $6 per gallon
Fuel cost per hour: ~$1,380
Maintenance & Engine Reserves
Engine reserve: ~$500 per hour
Airframe/parts reserve: ~$400 per hour
Total Direct Operating Cost (G100)
Estimated $2,300–$2,600 per flight hour
Gulfstream G150 Estimated Cost Per Hour
Fuel
Average fuel burn: ~300 gallons per hour
Jet A average price: $6 per gallon
Fuel cost per hour: ~$1,800
Maintenance & Engine Reserves
Engine reserve: ~$650 per hour
Airframe/parts reserve: ~$500 per hour
Total Direct Operating Cost (G150)
Estimated $3,100–$3,500 per flight hour
Annual Fixed Costs
Assuming 300 flight hours per year:
- Crew salaries: $350,000–$500,000
- Insurance: $60,000–$120,000
- Hangar: $80,000–$150,000
- Training & recurrent: $50,000–$80,000
Total Fixed Cost Estimate: $550,000–$850,000 annually
Total Annual Ownership Example
G100 (300 hours/year)
Direct cost (~$2,500 x 300): $750,000
Fixed cost estimate: ~$650,000
Total annual operating budget: ~$1.4 million
G150 (300 hours/year)
Direct cost (~$3,300 x 300): $990,000
Fixed cost estimate: ~$750,000
Total annual operating budget: ~$1.7–1.8 million
Cost Efficiency Perspective
The G100 offers lower acquisition cost and lower hourly burn, making it attractive for cost-conscious operators.
The G150, however, delivers higher cruise speed, better runway performance, and extended range — which may justify the higher operating cost for time-sensitive corporate missions.
Resale & Market Position
While the G100 trades at a lower acquisition price on the used market, the G150 generally maintains stronger long-term demand due to performance upgrades and cabin improvements.
For operators flying fewer than 250 hours annually, the G100 may provide stronger cost efficiency. For operators flying longer missions and demanding higher speed, the G150 often provides better mission value per hour.
Ownership is not just about hourly cost — it is about mission profile alignment.
