Interline check-in works fine most of the time with most carriers. Of course, computers being computers, there can be glitches from time to time and of course it's frustrating.
The only problems I've had with KLM interline check-in is not being able to check-in from the USA on the return leg. I've no idea why.
In an unrelated issue regarding their (KLM) booking engine, I remember that it took me months, a lot of calls and a great deal of patience to convince them that there was a particular glitch with their system (and not my PC) when trying to book Business Class from MST. 5 months later they finally acknowledged it and fixed it!
Last edited by Avman; 24th July 2008 at 10:11.