Originally Posted by Shawn02139
But for surface sector, it reads:
153N 4. ORIGIN-DESTINATION SURFACE PERMITTED:
154N .
155N . * WITHIN THE COUNTRY OF ORIGIN
156N . * BETWEEN USA AND CANADA
157N . * BETWEEN HKG AND CHINA
158N . * WITHIN AFRICA
159N . * WITHIN SOUTH AMERICA
160N . * BETWEEN BANGLADESH AND BKK/SIN
161N . * BETWEEN MALAYSIA AND SIN
Which seems to rule out SGN-BKK, right?
Sorry, I misread your original question. I failed to realize your starting point is BOM.
Wrongly, I wrote general surface sector treatment.
About Vietnam issue, HKG-SGN is operated by CX, so you can include this flight into your xONEx/xGLOBx fare.
However, HKG-HAN is operated by VN, so you can't.