I'm planning a trip to Kentucky next week, and I'm flying out of BWI. I've used this airport once or twice, but haven't driven myself there. So, I'm just wondering if anyone has any comments on how easy it is to find the various parking garages/lots. I'm thinking of the Express Parking lot. I'll be coming from north of Baltimore. Also, how bad are the security lines typically? My flight is at 9 am on a weekday, and I'm planning to get to the airport around 7. TIA!