Earbuds vs Over-the-ear for long flights?

I am curious what people's opinions are for long flights. Is the space saved in your bag worth the comfort loss?

For context: I have both decent quality earbuds and over the ear headphones. The over the ear are much more comfortable though but take up a substantial amount of space in my 30L bag and I will be gone for a few weeks. I am planning to fly some budget airlines so want to keep my bag as small as possible. Trying to convince myself one way or the other so curious on peoples thoughts.