Head to head

Ariane 64 vs Atlas V 401

Two vehicles in the same payload class. Every figure below comes from the same two sources for both rockets, and a row appears only when both publish the input.

Payload to low Earth orbit

Relative

Ariane 64: 21,900 kg

Atlas V 401: 9,050 kg

Side by side

7 comparable figures

The highlighted value wins the row. Rows where neither direction is better, like length or stage count, highlight nothing.

Metric	Ariane 64	Atlas V 401
Flights flown	3	41
Success rate	100%	100%
Payload to LEO (kg)	21,900	9,050
Payload to GTO (kg)	11,700	4,950
Length (m)	63	58.3
Diameter (m)	5.4	3.8
Stages	2	2

Ariane 64

Flight record

100% success rate3 of 3 flown

Maiden flight 2026-06-17. Still flying.

Atlas V 401

Flight record

100% success rate41 of 41 flown

2002peak 2014 · 7 flights2022

Maiden flight 2002-08-21. Retired.

Ariane 64 is built by ArianeGroup of France (company profile on Space Index).Atlas V 401 is built by United Launch Alliance of the United States (company profile on Space Index).

Full specifications and the complete launch history for each: Ariane 64 · Atlas V 401.

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.