AIRLINES

New Delay Sought in Denver Airport Opening: United Airlines has asked that the opening of Denver International Airport, scheduled for May 15, be delayed again because its trouble-plagued baggage system will not be fully operational. The Chicago-based carrier, one of the new airport’s main tenants, made the request in a letter to Mike Musgrave, Denver’s public works manager. United’s contract with the city requires that the baggage system operate on all three of the airport’s concourses, and be able to move oversized luggage, such as golf bags and bicycles. The city has twice delayed the opening of the airport.