How did we arrive at the data?
I took publicly available seat counts and other published data showing available data and came up with these estimates. I do not guarantee 100% accuracy, but I think we are fairly close to the true numbers. OAG, Various Source websites, airline sites etc.
Assumptions:
AeroMexico - 46 flights with 99 seats, 13 flights with 96 seats, one flight with 98 seats
Air Canada - 131 flights with 76 seats
Avianca - 22 flights with 96 seats
British Airways – 30 flights with 337 seats
Emirates - 30 flights with 354 seats
Interjet - 51 flights with 150 seats
Japan Airlines - 30 flights with 161 seats
Korean - 22 flights with 277 seats
Lufthansa - 26 flights with 255 seats, four flights with 216 seats
Qantas – 30 flights with 484 seats inbound and 355 seats outbound (lower outbound estimate for blocked seats)
Qatar – 30 flights with 358 seats
Volaris - 13 flights with 179 seats

DFW Airport Data