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This page can be accessed directly at flightontime.info/LondonAtlanta   Year Airline Avg. Delay 2011 to date British Airways 13.82 mins 2010 Delta Airlines 22.07 mins 2009 Delta Airlines 12.17 mins 2008 British Airways 13.13 mins 2007 Delta Airlines 18.79 mins 2006 British Airways 19.74 mins Choose another Key Route: Operating airports Operating months Average delay (mins) Operated within 15 mins (%) Over 1 hour late (%) Over 3 hours late (%) Total flights analysed Rank Airline LHR LGW LCY STN LTN J F M A M J J A S O N D 1 British Airways 13.82 71.32 2.94 0.55 544 2 Delta Airlines 16.21 73.14 6.50 0.79 1,385   ROUTE AVERAGE 15.53 72.63 5.50 0.73 1,929 Operating airports Operating months Average delay (mins) Operated within 15 mins (%) Over 1 hour late (%) Over 3 hours late (%) Total flights analysed Rank Airline LHR LGW LCY STN LTN J F M A M J J A S O N D 1 Delta Airlines 22.07 64.67 9.38 1.56 1,472 2 British Airways 29.76 58.53 7.80 2.02 692   ROUTE AVERAGE 24.53 62.71 8.87 1.71 2,164   Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 Delta Airlines       12.17 79.54 5.72 0.34 1,486 2 British Airways *       15.19 73.33 5.83 1.25 720   AVERAGE BOTH AIRLINES > > > 13.16 77.52 5.76 0.63 2,206 * - British Airways transferred LGW-ATL flights to LHR during March 2009   Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 British Airways         13.13 77.72 4.04 0.70 718 2 Delta Airlines ^       14.66 74.65 5.54 1.15 2,004   AVERAGE BOTH AIRLINES > > > 14.26 75.46 5.14 1.03 2,722 ^ - Delta Airlines commenced LHR-ATL during March 2008   Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 Delta Airlines         18.79 68.50 7.82 0.75 1,457 2 British Airways         19.62 62.43 6.56 0.84 716   AVERAGE BOTH AIRLINES > > > 19.06 66.50 7.41 0.78 2,173     Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 British Airways         19.74 62.60 6.65 1.11 722 2 Delta Airlines         24.12 57.99 9.84 1.47 1,971   AVERAGE BOTH AIRLINES > > > 22.95 59.23 8.99 1.37 2,693     Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 Delta Airlines         15.81 70.36 6.24 0.63 2,210 2 British Airways         18.48 60.03 4.01 0.55 723   AVERAGE BOTH AIRLINES > > > 16.47 67.81 5.69 0.61 2,933     Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 Delta Airlines         15.45 71.20 4.71 0.72 2,229 2 British Airways         19.34 71.09 4.01 0.97 723   AVERAGE BOTH AIRLINES > > > 16.40 71.17 4.54 0.78 2,952     Operating from London Airports Avg. Delay (mins) OTP Within 15 mins (%) 1 hr+ late (%) 3 hrs+ late (%) Total Flights Analysed Rank Airline LHR LGW LCY STN LTN 1 Delta Airlines         11.54 78.01 4.16 0.22 1,828 2 British Airways         12.11 78.95 4.43 0.42 722   AVERAGE BOTH AIRLINES > > > 11.70 78.27 4.24 0.27 2,550