Striking Boeing workers are set to vote on a new offer from the aviation giant, which includes a 38% pay rise over the next four years.
The International Association of Machinists and Aerospace Workers (IAM) union, which represents more than 30,000 striking workers, has endorsed the offer and says it will hold a ballot of its members on Monday.
The walkout started on 13 September, leading to a dramatic slowdown in production and deepening a crisis at the firm.
The union had previously called for a 40% pay increase and workers have rejected two previous offers, including the last offer of a 35% rise.
As well as the proposed pay rise, the latest offer includes a $12,000 bonus (£9,304) for the workers if a deal is reached, up from $7,000.
“It is time for our members to lock in these gains and confidently declare victory,” an IAM social media post said.
“We believe asking members to stay on strike longer wouldn’t be right as we have achieved so much success.”
Boeing said the offer would see average annual pay rise to $119,309 over the next four years.
“We encourage all of our employees to learn more about the improved offer and vote on Monday, November 4,” Boeing said in a statement.The new offer also includes changes to workers’ retirement plans.