From media and airline reports: Unscheduled runway maintenance at Luanda Airport through 28 Sept. 2011 is affecting flights on several airlines. In some cases, flights are being shifted to other aircraft, but in others, flights are being cancelled on selected days, or being diverted to other airports.
Affected airlines include South African Airways, Lufthansa, British Airways and AirFrance. Emirates airline has cancelled all flights through 28 September. Check with your carrier for specific details and arrangements