Originally Posted by
TTmex
Worst for me is any flight that goes out late at night and forward across timezones. The classic red-eye. With tailwind it gets worse. I remember QR from LHR to DOH having a flight time of barely 5 hours, so 3.5 hours sleep about the max possible having left at 9.30pm. Other stinker is MEX to JFK on AA when you leave at midnight and arrive 6am after only 4 hours in the air in a recliner. As for bad BA flights, not got much reference as only long haul I do is the Mex route and rest is European SH.
AA has some even more brutal red eyes. LAS-ORD leaves at 11:55 PM and arrives three hours and 27 minutes later in ORD at 5:22 AM.
For BA, I would vote the narrowbody flights to/from Northern Africa.