Often called a "revenue-based model," travelers are now rewarded according to their spending and not how many miles they've traveled.
The incentive seems to be more geared towards the "elite" spenders. Additional miles are being awarded for those frequent customers who spend, spend, and spend more in various places besides their airline ticket.
How flyers benefit will be determined by the "type of traveler" they are. Those who travel American, Delta, and United normally get "5 frequent flyer miles for every dollar spent" according to Medium.com.. These miles earned are based from the amount of fares purchased for their flights, but several other components play a role, too.
I’ve never flown Transavia before, so to say I was timid in booking this flight from Amsterdam’s Schipol to Nice’s Cote d’ Azur, is an understatement. I’m a oneworld Emerald member thanks to my American Airlines Executive Platinum status, so I tend to book on oneworld carriers when convenient — in this case for Europe, that primarily falls to British Airways, Iberia and Finnair, neither of which had any sort of schedule that remotely sounded appealing, all of which required layovers in London, Madrid and Helsinki, respectively. Transavia, a low-cost subsidiary of Air France/KLM, operates a hub in Amsterdam with flights across Europe.