Amazon Leo books six more Ariane 64s: the Arianespace agreement grows from 18 to 24 missions through 2031

Amazon Leo has booked six more Ariane 64 launches, and the agreement between Amazon's constellation and Arianespace grows from 18 to 24 missions. The announcement was made on 9 September 2026 at the International Space Summit in Paris, and it was released simultaneously by the European launch operator and by Amazon itself. The new flights will begin in 2029 and run until 2031, from Europe's Spaceport in Kourou, French Guiana.

The original contract, from 2022, committed 18 launches of the heavy configuration of Ariane 6 to deploy Amazon's internet constellation. The extension does not change the vehicle: the six additional missions are also Ariane 64. Neither release gives the value of the extension, nor details the payloads that will fly between 2029 and 2031, nor how many satellites will ride on each flight.

What both do offer is the tally of what has already been done. In 2026, Arianespace has placed 100 Amazon Leo satellites in orbit across three Ariane 6 missions in under five months. The third, VA269 or LE-03 depending on whose nomenclature is used, lifted off on 17 June 2026 with 36 satellites, Amazon Leo's largest load to that date, and debuted the new-generation P160C boosters, which according to Amazon add up to two metric tonnes of payload capacity.

Europe isn't just a region we are going to serve. Europe's launch infrastructure is part of the operational architecture of the Amazon Leo constellation.

So said Chris Weber, vice president of Amazon Leo business and product, who added that Amazon committed early to Arianespace "because we believed in what Arianespace was building, and they've executed mission after mission". For David Cavaillolès, chief executive of Arianespace, the six launches "demonstrate Amazon Leo's confidence in the performance and reliability of Ariane 6", and long-term commitments from customers like this one "support the ramp-up of Ariane 6 and strengthen our business model", while "ensuring Europe has the capabilities it needs to deploy its critical space infrastructure".

Amazon's release provides the context of the programme as a whole, which is not specific to this contract: 14 missions completed since April 2025, nearly 400 satellites in orbit, more than 100 launches secured across several different vehicles, and initial service expected to begin this year. Of the full agreement with Arianespace, Amazon estimates a contribution of €2.8 billion to the European Union's GDP, an average of 3,270 jobs a year supported through 2029 and a supply chain of more than 600 companies in thirteen European countries. Those are figures for the whole, not for the six new missions.

The Ariane 64 entry in this encyclopaedia records three launches up to 17 June 2026, the date of the latest Amazon Leo mission the releases cite. The 64 is not a different rocket from Ariane 6 but its heavy configuration: the same 63 m, 5.4 m-diameter central body, with two liquid hydrogen and liquid oxygen stages (a Vulcain 2.1 below and a restartable Vinci above), to which four solid boosters are strapped instead of the two of Ariane 62. It is the variant a constellation like this one needs, and the one Arianespace now sells with the lengthened P160C boosters. That a commercial customer should expand its order book by a third, and stretch it to 2031, is the argument Cavaillolès puts on the table for the ramp-up: Ariane 6 has to be able to serve commercial and institutional missions at once, and for that it needs, in his words, customers who commit for the long term. With 24 missions under contract through 2031, Amazon Leo is the example both releases hold up of that commitment.

Main release: "Amazon Leo and Arianespace strengthen partnership with six additional Ariane 64 launches", Arianespace, 9 September 2026. https://newsroom.arianespace.com/amazon-leo-and-arianespace-strengthen-partnership-with-six-additional-ariane-64-launches/

Amazon Leo release on the same agreement, Amazon, September 2026. https://www.aboutamazon.com/news/amazon-leo/amazon-leo-arianespace-new-launches

Launcher context: the Ariane 64 entry on Above Ten Thousand.