Is it compulsory to reserve a seat?

You are not required to reserve a seat. If you would like to sit at the front or back of the aircraft, or if you prefer a seat with extra legroom, we do recommend reserving a seat in advance for a fee. If you are travelling with a child under the age of 12, we will make sure that the child is seated next to at least one adult. We cannot guarantee that the whole group will be seated together.

If you do not reserve a seat in advance, you will automatically be assigned one. Would you still prefer to sit somewhere else? Then you can still change your seat during online check-in for a fee, subject to availability.