The proposal includes a wage increase of 35% over four years. The potential breakthrough ends a lengthy impasse marked by miscues and finger-pointing.

Boeing has made a new contract offer with a higher wage increase and other incentives in an attempt to end the strike. The union will vote Wednesday.

Boeing and its striking Seattle-area workers have reached a tentative deal to end a more than month-long stoppage, the union said Saturday.

Boeing factory workers held a large rally in Seattle to demand a better wage deal, mounting pressure on new CEO Kelly Ortberg to end a bitter strike that has plunged the planemaker further into financial crisis.

Striking workers at Boeing will vote next week on a new offer that could end a walkout that has lasted more than a month.

Their work stoppage has halted production of the plane maker's best-selling 737 MAX and its 767 and 777 widebodies.

Boeing Co. and the union representing 33,000 striking workers reached a tentative agreement October 19 on a new contract with help from the White House, underscoring the high stakes to end a work stoppage that has crippled one of the largest U.S. exporters.