DALLAS -- United Airlines probably will not sign a final agreement to use the Denver International Airport until next year, a delay that is expected to increase pressure to keep the project on target.

Denver and the Chicago-based carrier had originally agreed to negotiate a final lease agreement by Nov. 30, but a city official said a final pact will probably have to wait until rival Continental Airlines decides its future role at the $3.1 billion airport.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.