Airport Tenants Telephone Directory
| Alaska Airlines (Horizon Air) | 800-252-7522/406-438-4075 |
| Avis/Budget Rent a Car | 406-442-4440/ 406-442-6241 |
| Boeing | 312-544-2000/866-473-2016 |
| Costco | 406-495-7042 |
| Delta Air Lines | 800-221-1212/406-495-1100 |
| Dramstad Flying Services | 406-443-0066 |
| Enterprise Car Rental | 406-442-1765 |
| FAA – Airports District Office | 406-449-5271 |
| FAA – Flight Standards District Office | 406-449-5270 |
| Helena Regional Airport Administration | 406-442-2821 OPT: 1 |
| Helena Regional Airport Operations 24/7 Line | 406-439-2821 |
| Hertz Rental Car | 406-449-4167 |
| Montana Aeronautics Division | 406-444-2506 |
| National Car Rental | 406-442-8620/406-442-1765 |
| Piedmont Air | 406-442-8108 |
| Pioneer Aerostructures | 406-442-6938 |
| SkyService (FBO) | 888-759-7591 |
| SkyWest Airlines | 406-495-1100 |
| The Retreat Kitchen & Bar/Tailwind | 406-443-2824 |
| Transportation Security Administration (TSA) | 406-449-5467 |
| United Airlines | 800-864-8331/406-495-1100 |