Teamsters Reach Agreement in Principle With United for 11,000 Mechanics, But Contract Not Final

The International Brotherhood of Teamsters said Tuesday it reached an agreement in principle with United Airlines on a new labor contract covering more than 11,000 mechanics and related employees nationwide, a milestone that the union said includes a $54 million signing bonus and faster progression to top pay. The deal is not final: The union said it still must be turned into a completed tentative agreement, reviewed by members and ratified.

In its July 21 announcement, the Teamsters said its full bargaining committee voted 19-12 to recommend the agreement in principle to members for ratification. The union said the proposed deal includes a $54 million signing bonus upon ratification, $5,000 payments to each member, accelerated progression to top pay from eight years to five, what it described as “industry-leading” wage increases, a two-year extension of the Retiree Bridge Medical Plan, and an expedited grievance and arbitration process. The union did not disclose specific wage percentages, the contract term, implementation dates or full wage tables in its release.

The union’s announcement also contained an unresolved numerical inconsistency. A $54 million bonus pool divided into $5,000 payments equals 10,800 recipients, not “more than 11,000.” The Teamsters did not explain the discrepancy in the release. Public confirmation from United Airlines was also not available in the source material reviewed; no contemporaneous United press release or Securities and Exchange Commission filing confirming those exact terms was identified at the time of reporting.

That distinction matters because airline labor negotiations are governed by the Railway Labor Act, the federal law that covers airlines and railroads and sets the framework for bargaining. Under that process, an agreement in principle is an important breakthrough, especially after what the union said was nearly two years of negotiations, but it does not itself finalize a contract. The next step, according to the Teamsters, is for the United bargaining committee to finalize contract language and share the full details with members, who would then vote on whether to ratify the deal. The union did not provide a ratification timeline.

The mechanics talks are the latest major labor development at United this year. In March 2026, United and the Association of Flight Attendants-CWA announced a tentative agreement for flight attendants, and that group ratified its contract in May. Together, the deals show United bargaining this year with multiple large work groups, including mechanics, a safety-sensitive workforce responsible for maintaining aircraft and supporting daily operations.

Sean M. O’Brien, the Teamsters’ general president, called the breakthrough a broader marker for airline labor. “Our members took on one of the biggest airlines in the world and won,” he said in the union release. “This agreement will raise the bar for every airline worker in America.” For now, though, the proposal remains short of a final contract: The bargaining committee must complete the language, members must review the full agreement, and a ratification vote still must take place. No timeline for those steps was announced.