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This page can be accessed directly at flightontime.info/LondonHouston   Year Airline Avg. Delay 2011 to date British Airways 13.49 mins 2010 British Airways 21.20 mins 2009 British Airways 14.05 mins 2008 British Airways 16.82 mins 2007 British Airways 18.56 mins 2006 British Airways 18.20 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 13.49 74.91 4.15 0.75 1,060 2 Continental Airlines 14.61 77.80 6.24 1.01 1,090   ROUTE AVERAGE 14.06 76.37 5.21 0.88 2,150 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 21.20 61.71 7.88 1.04 1,345 2 Continental Airlines 26.73 62.83 11.51 3.00 1,399   ROUTE AVERAGE 24.02 62.28 9.73 2.04 2,744   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         14.99 72.81 4.60 0.72 1,390 2 Continental Airlines         26.92 63.43 10.26 2.16 1,433   AVERAGE BOTH AIRLINES > > > 21.05 68.05 7.47 1.45 2,823     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 *       16.82 65.77 5.56 0.72 1,528 2 Continental Airlines ^       18.42 72.53 7.56 1.30 1,853   AVERAGE BOTH AIRLINES > > > 17.70 69.48 6.65 1.04 3,381 ^ - Continental Airlines commenced LHR-HOU during March 2008, discontinued LGW-HOU during October 2008 * - British Airways discontinued LGW-HOU 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 British Airways       18.56 69.25 5.85 0.82 2,068 2 Continental Airlines         19.96 65.68 9.03 0.69 1,451   AVERAGE BOTH AIRLINES > > > 19.14 67.77 7.16 0.77 3,519     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       18.20 71.00 5.62 0.88 2,045 2 Continental Airlines         19.24 63.23 6.77 0.69 1,447   AVERAGE BOTH AIRLINES > > > 18.64 67.78 6.10 0.80 3,492     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       13.64 75.93 4.51 0.62 1,928 2 Continental Airlines         18.66 66.97 6.35 0.70 1,432   AVERAGE BOTH AIRLINES > > > 15.78 72.11 5.30 0.65 3,360     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 Continental Airlines         12.07 76.14 3.60 0.21 1,446 2 British Airways       13.67 77.80 4.94 0.51 1,761   AVERAGE BOTH AIRLINES > > > 12.95 77.05 4.33 0.37 3,207     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 Continental Airlines         9.85 81.27 2.42 0.23 1,324 2 British Airways       11.48 79.47 3.72 0.25 1,588   AVERAGE BOTH AIRLINES > > > 10.74 80.29 3.13 0.24 2,912