Flying Belgian From Belgium, joined Jun 2001, 2366 posts, RR: 10 Reply 5, posted (10 years 7 months 3 weeks 4 days 21 hours ago) and read 2609 times:
Yes, I am an IATA graduated, and I can tell you that this the truth !!!
A one way is more expensive in the IATA publicated fares. This is technical a bit long to explain actually.
As I worked as Business Travel consultant, I often used the tactics like cross-tickets and fictive return tickets to get better fares. But this only applies to Corporate travel. And this can explain some no-shows on European flights.