Over 3,000 Boeing Defense Workers Strike After Rejecting Contract Offer

Missouri — More than 3,200 workers at Boeing’s defense unit launched their first strike in nearly three decades on Monday after rejecting the company’s latest contract offer.

The strike affects employees at Boeing’s St. Louis-area facilities, where workers assemble and maintain F-15 fighter jets and missile systems. The International Association of Machinists and Aerospace Workers (IAM) District 837 confirmed that union members voted down a contract that included a 20% general wage increase, a $5,000 signing bonus, and enhanced retirement benefits.

Boeing stated that, with additional benefits factored in, the pay increase could amount to around 40%, potentially raising the average machinist salary from $75,000 to over $102,000, according to Jefferies.

“IAM District 837 members have spoken loud and clear; they deserve a contract that reflects their skill, dedication, and the critical role they play in our nation’s defense,” said Tom Boelling, IAM District 837’s directing business representative.

Dan Gillian, Boeing’s vice president and senior St. Louis site executive, expressed disappointment over the union’s rejection but said contingency plans are in place to limit operational disruptions.

The strike is part of a wider trend of aviation labor unions pushing for higher wages amid a shortage of skilled workers. Boeing’s defense unit accounted for approximately 30% of the company’s $42 billion in revenue during the first half of 2025.

The labor action follows last year’s larger strike involving 32,000 commercial aircraft machinists, which ended after Boeing approved a contract offering 38% raises over four years.