| Alaska Airlines (Horizon Air) |
800-252-7522/406-438-4075 |
| Avis/Budget Rent a Car |
406-442-4440/406-465-5426 |
| 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/National Car Rental |
406-422-9727 |
| 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 |
| Piedmont Air |
406-442-8108 |
| Pioneer Aerostructures |
406-442-6938 |
| SkyService (FBO) |
888-759-7591 |
| SkyWest Airlines |
406-495-1100 |
| The Retreat Kitchen & Bar/Tailwinds |
406-443-2824 |
| Transportation Security Administration (TSA) |
406-449-5467/866-289-9673 |
| United Airlines |
800-864-8331/406-495-1100 |
| US Customs |
406-449-5506 |
