Originally Posted by
RacingJunkie
Correct, by the entire ticket on KLM. Delta recognizes and treats you better on KLM stock than KLM does on Delta stock. It is a nightmare and you can do a search on many KLM threads about getting econ comfort seats for elites, and having your seats moved.
How does the upgrade on the DL domestic segments work out, when flying DL metal on KLM ticket stock?