Originally Posted by
Xeno
You should, however, be eligible for PE for DEL-CDG if this is flight is before AF discontinues PE on like flights. At least this would be the case for short flights like WAW-CDG, but I have no direct experience with a flight like DEL-CDG.
OP is booked BOS-CDG-DEL in W. BOS-CDG segment will be upgraded and CDG-DEL not. Even if the DL agent confirms the upgrade, AF system will catch it a few hours later and will revert the changes for the non-eligible flight.
The situation you mentioned is different and only applies to short and medium haul flights in PE.