Long term parking costs $4 per calendar day and is located directly north of this airport terminal. If a passenger wants to have a parking permit, they have to call 406-442-2821. Passengers can use Pay-on-foot stations. There is short term parking available as well. It is free for up to two hours. Curbside parking is accessible in front of the terminal.
HLN Payment method
However, for payment cash is not appropriate, all debit cards are available, such as American Express, Visa, Discover, or MasterCard.