If you put it in your checked bags it got blasted for sure. I always carry film on the plane and have never had an issue.
From Baggage X-ray Scanning Effects on Film by Kodak:
X-ray equipment used to inspect carry-on baggage uses a very low level of x-radiation that will not cause noticeable damage to most films. However, baggage that is checked (loaded on the planes as cargo) often goes through equipment with higher energy X rays.
If you check that link you can also see examples of what X-ray damage looks like.