Originally Posted by
irishguy28
Absolutely not!
You appear to have missed the fact that 1 level segment will convert to 7 XP....which is a far better rate than the 1,000 level miles -> 5XP conversion. 1 Level segment - however it's earned, even if it's a dirt-cheap short flight - is worth more than 1,000 level miles, which are far more expensive to acquire than that single level segment.
That assumes he'll get those 100K level miles by flying 24/7 on cheap flights and also has the segments. It will convert either level miles (1000 -> 5 XP) or segments (1 -> 7 XP) to XP, whichever is greater, but if he doesn't have the segments (because he's more likely flying in premium cabin), he'll convert by level miles, so a dirt-cheap flight before April is a waste, because he'll still convert the level miles.