United Launch Alliance Set for Early Tuesday Morning Rocket Launch from Cape Canaveral
By Space Coast Daily // December 15, 2025
ABOVE VIDEO: The fourth launch of the United Launch Alliance (ULA) Atlas V 551 rocket carrying the next batch of production satellites for Amazon Leo (formerly Project Kuiper), Leo 4, is planned for Dec. 15, 2025, pending range approval. The launch window opens at 3:49 a.m. EST.
BREVARD COUNTY • CAPE CANAVERAL, FLORIDA – The launch of a United Launch Alliance Atlas V carrying the Amazon Leo 4 mission is now planned for Tuesday, Dec. 16, at 3:28 a.m. EST at the opening of a 29-minute window.
Teams are actively monitoring the weather and the forecasted winds during our original launch window present only a five percent chance of acceptability. The forecast for Dec. 16 provides a 95 percent chance of acceptable weather for launch.
This is ULA’s Amazon Leo 4 mission, continuing a new chapter in the commercial launch industry as Amazon partners with ULA to deploy a majority of its advanced satellite constellation using eight Atlas V and 38 Vulcan rockets in accordance with the world’s largest commercial launch agreement.
