Falcon 9 brings a longer flight history. New Glenn offers more payload capacity and a wider fairing. Both are two-stage rockets with reusable first stages designed to land and fly again, and both now compete for the same government and commercial launch contracts. But they came to that competition from very different starting points.
SpaceX’s Falcon 9 has been flying for more than a decade and can relaunch individual boosters within days of landing. Blue Origin’s New Glenn reached orbit for the first time in January 2025, giving the United States a second domestic option for reusable heavy-lift launches.
The US Space Force has deliberately certified both rockets for its most sensitive missions. That way, if one vehicle is grounded or fails, classified and missile-warning satellites still have another path to orbit.
The Comparison at a Glance
| Measure | Falcon 9 | New Glenn |
|---|---|---|
| Builder | SpaceX | Blue Origin |
| First orbital flight | 2010 | January 2025 |
| Height | About 70 meters | About 98 meters (322 feet) |
| Payload fairing diameter | About 5.2 meters | 7 meters |
| Payload to low Earth orbit (expendable) | Roughly 22 metric tons | Roughly 45 metric tons (Blue Origin’s advertised figure) |
| First-stage engines | Nine Merlin (kerosene, liquid oxygen) | Seven BE-4 (liquefied natural gas, liquid oxygen) |
| Booster reuse | Lands and reflies routinely, within days | Designed to land and refly, still proving out the landing sequence |
Flight History Is the Widest Gap
Falcon 9’s biggest advantage over New Glenn has nothing to do with size. It is time in the air. Falcon 9 has flown for well over a decade, and SpaceX now reflies individual boosters within days of a landing rather than months. That cadence made Falcon 9 the most frequently launched rocket in the world. It also drove down the cost of each flight, because the most expensive part of the vehicle, the first stage, gets used many times instead of once.
New Glenn is still building that same track record. Its first orbital flight reached orbit successfully in January 2025 but lost the booster during the landing attempt, a common early stumble for a reusable rocket. Falcon 9 itself needed several tries before SpaceX landed a booster for the first time, so a rough start does not predict New Glenn’s long-term reliability. It does mean that, as of 2026, nobody can yet point to years of New Glenn flight data the way they can for Falcon 9.
New Glenn Lifts More and Carries It Wider
New Glenn beats Falcon 9 on the numbers that matter for a single large payload. Blue Origin advertises roughly 45 metric tons to low Earth orbit in expendable mode, against Falcon 9’s roughly 22 metric tons. New Glenn’s 7-meter payload fairing is also wider than Falcon 9’s 5.2-meter version. A big communications satellite or a space station module can ride inside New Glenn’s fairing without folding its solar arrays or antennas for the trip. A Falcon 9 mission sometimes has to design around that narrower limit instead.
Recovering the first stage costs some of that advertised capacity on both rockets, the tradeoff every reusable booster makes. Holding back propellant for the landing burn means less fuel spent pushing the payload higher. The real number for a given mission depends on whether SpaceX or Blue Origin needs the booster back that flight. Neither company publishes one fixed figure for every mission profile. Both rockets’ own pages point customers to a mission-specific quote instead of a single advertised maximum.
Two Different Engines, Two Different Fuels
Falcon 9’s nine Merlin engines burn refined kerosene with liquid oxygen, the fuel combination SpaceX has flown since its earliest Falcon 1 rocket. New Glenn’s seven BE-4 engines burn liquefied natural gas instead, a choice Blue Origin says leaves less soot on a booster that has to be reused. The BE-4 also powers United Launch Alliance’s Vulcan Centaur, so a single engine line backs two competing rockets built by two different companies.
Neither fuel choice is simply better. Kerosene-fueled engines are a mature, well-understood technology with a long flight record behind them. That history is part of why Falcon 9’s Merlins have proven so reliable across so many launches. Natural gas is newer to orbital rocketry. The BE-4’s real long-term reliability, across many reflights of the same engine, is still being established, the same way Falcon 9’s engines were established a decade ago.
New Glenn’s Booster Landing Remains Unproven
Both rockets land their first stage the same basic way. After the boosters separate, each one reorients and fires some of its engines to slow down. Grid fins steer it through the air, and a landing burn fires just before touchdown. Falcon 9 lands on an ocean droneship or back near its launch pad and does this routinely today, on nearly every mission where the payload allows it. New Glenn lands on a ship named Jacklyn, after Jeff Bezos’s mother, and is earlier in proving the same sequence can be repeated reliably flight after flight.
That gap will likely close with more flights, the same way it did for Falcon 9. Right now, a customer choosing New Glenn is choosing a newer vehicle. It carries a stronger payload number on paper and a shorter track record to check it against.
Who Flies Which Rocket
SpaceX uses Falcon 9 to launch its own Starlink satellites in large batches and to carry crew and cargo to the International Space Station using the Dragon capsule. It also flies commercial and government payloads on a packed annual schedule. New Glenn carries Blue Origin’s own Blue Moon lunar landers, NASA planetary science payloads, and national-security and commercial satellites, including some of Amazon’s Project Kuiper broadband constellation. Amazon deliberately books launches across multiple rockets, New Glenn among them, rather than depending on any single provider’s schedule.
What Would Change This Comparison
A string of successful New Glenn landings, or a jump in its annual flight rate, would close the gap in flight history that currently favors Falcon 9. A confirmed, mission-specific payload figure from Blue Origin, rather than the current advertised maximum, would sharpen the capacity comparison in either direction. Readers who want the individual mechanics behind each rocket can start with the Falcon 9 explainer and the New Glenn explainer. The reusable rockets guide covers the landing and cost math both companies are chasing.