dusdidt

Under the new "better" Delta SkyMiles program, so many SkyTeam Airline Partner coach fares now don't earn SkyMiles. It is terrible and a devaluation of Delta SkyMiles program!! All partners now have many non earning coach fares. One has to be very careful now before purchasing a SkyTeam airline ticket because one can be earning NO miles at all or miles on flights going but not on the return flights depending on the booking codes of each flight segment. The difference between a fare earning SkyMiles and a fare not earning Skymiles can be as little as $100.
Often one doesn't get to see the booking codes of each flight when one is booking online. I find the only certain way now is to use a travel agent to determine what code my flights are booked in and what are the cheapest fare earning miles and those not earning miles. Delta SkyMiles has become too complicated with pitfalls.

Here are just a few samples from the small print in Delta's SkyMile Airline Partner page. Check before you buy a SkyTeam ticket.

Air France: Mileage credit is not applicable for fares booked in A, L, N, O, G, or X class,

KLM: Mileage credit is not applicable for fares booked in D, G, E, V, N or W class.

Aeroflot: Mileage credit is not applicable for fares booked in O, X, L, N, or E class

Korean: Mileage credit is not applicable for fares booked in B, G, N, Q, A, D, U, X, or V class.