Old Nov 8, 19, 1:48 pm
  #8  
Nuhusky
 
Join Date: Nov 2017
Programs: AA EXP, Marriott Bonvoy titanium
Posts: 404
Originally Posted by MSPeconomist View Post
This is my understanding, although I've never tested it to discover the exact timeline.

We should also point out that paying money (or miles at the rate offered) to upgrade only some of the connecting segments in the same direction normally is treated like a seat purchase and doesn't change the ticket to a higher fare class.
can you expand on this

so say there are four legs in the itinerary and you update only one leg to first. The upgraded leg would not result in a higher fare class and as such not earn mqm bonus over economy?
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