I used to ride to the local commercial airport and lock the bike there. But after 9/11 they tightened security and decided that bikes were a possible bomb hazard. No matter how I tried to explain that there was no way a bike could hold nearly as much explosive as any of the cars parked nearby, they wouldn't buy it. In fact, they installed a blast curtain between the parking area and the terminals.

In the end, I made a deal with the head of security whereby I could arrange to leave my bike in his office while I was gone, and that worked until he transferred to another location. Now, it's still a no bikes policy, though I could probably lock it someplace 100 yards away and not be bothered.

So, I suggest you ask, before riding up for a flight and having to decide between missing it and losing the bike.