CHICAGO (AP) _ A tentative agreement was reached Saturday between United Airlines and its pilots, a spokesman for the pilots said. The contract dispute forced the world's largest airline to cancel or delay thousands of flights this summer.

The pilots' spokesman, Herb Hunter would not provide any details of the agreement, which he said is retroactive to April 12.

The agreement still must be approved by the membership of the pilots union. Hunter said the union will discuss the tentative agreement next month.

United's labor problems began this spring when the contract with its 10,000 pilots came up for renewal.

Pilots began refusing to fly overtime, which they are entitled to do, and that caused chaos with United's already-tight schedule. The pilots say the airline has long failed to hire enough pilots to carry out its packed schedule.

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