Back to BWI Onsite Parking Page BWI Cell Phone Lot Audio- Save this mp3 on your mobile phone or iPod for use while at the airport BWI Cell Phone Lot - FREE. Located at the entrance to BWI Express Parking on Terminal Road. One hour waiting area. 50+ spaces available and never too crowded. Beats sitting on the shoulder of Interstate 195. (Don't do that.) No amenities or restrooms so make sure you "go" before you go!