Starship vs Falcon 9 Economics: $/kg to LEO, Modelled
Falcon 9 internal launch cost is ~$1,000/kg. Starship at scale is modelled at <$200/kg. Here is the cost stack and what it means for the launch market.
Falcon 9 internal $/kg
~$1,000
Starship modelled $/kg
<$200
External market price/kg
$3,000–6,000
The cost stack
Per launch, Starship costs more than Falcon 9 in absolute terms — roughly $90M for a fully-expended flight versus $25M for a reused Falcon 9 launch. But Starship lifts 100+ tonnes vs Falcon 9's 22 tonnes, and at full reuse (which IFT-15 demonstrated for booster, and IFT-16 will test for ship), per-flight refurbishment cost drops sharply.
Modelled at 50 reuses per booster and 30 per ship — conservative versus published target metrics — Starship cost per kilogram to LEO falls under $200. External market price stays in the $3,000–6,000/kg range, leaving roughly an order of magnitude of arbitrage between internal cost and external price.
Why this matters for SPCX revenue
The mass to orbit unlocked by Starship is what makes AI1, Mars cargo and a 16M+ Starlink subscriber base economically viable. Internal launch cost is the foundational input cost for every other SpaceX business line.
Key takeaways
- Starship at scale could be 5× cheaper per kg than Falcon 9
- External pricing stays high — the arbitrage is the moat
- Internal $/kg is the foundational cost driver for Starlink, AI1 and Mars
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