It was pretty simple, CycleChic. When I checked in they asked me how many bags I had. I said 2. The bags didn't weigh over 50 lbs. I didn't make a point of saying that it was a bicycle. I have been charged by Horizon Air before, but on my last few times flying with my bicycle, I haven't had to pay anything. Maybe the secret is just having 2 items--1 suitcase and the bicycle container. It's a Serfas and it has wheels and a pull strap. Last summer I was flying back out of St. Louis, and the curbside fellow said--oh with that, you'll have to go in & pay a fee. But even though I went inside I still wasn't asked to pay. Maybe I just was lucky..........