| Business | Phone |
| Allegheny Airlines Inc Bwi Airport, Linthicum Hts 21090 | (410) 691-1119 |
| Continental Airlines Bwi Airport, Linthicum Hts 21090 | (410) 865-5600 |
| Northwest Airlines Inc Baltimore Washington Intl Airp, Linthicum Hts 21090 | (410) 859-2737 |
| United Air Lines Inc 9 N Cargo Dr # 9, Linthicum Hts 21090 | (410) 859-2637 |