Qatar Airways today (16AUG17) opened reservation for planned Doha – Chiang Mai service, previously scheduled to launch on 16DEC16. The revised launch date is now set on 07DEC17, with Boeing 787-8 aircraft operating 4 times a week.
QR822 DOH2005 – 0600+1CNX 788 x135
Q.... CNX0710 – 1055DOH 788 x246
Source:
Routesonline
Edit: There is a bug. I quoted the return as QR 8 2 3 (space added..), but flyertalk replaces this with dots ...