Originally Posted by williamvdh

Is is possible to book BKK-DXB-MCT-DXB-BKK and then immediately change it in My Booking to for example BKK-DXB-CAI-DXB-BKK (or any other destination in the same region) for free, providing the A fare is also available on those flights? BKK-MCT A fare is around € 1850, BKK-CAI A fare around € 2600, so I'm wondering if I have to pay this difference of almost € 800 or if it is indeed free.