Capital Transit is Juneau's public transit moving people about, including to the airport with some exceptions, that being early morning flights, weekends, evenings nor holidays. For that, you'll need someone with a car or taxi. No service to the ferry. For the service it does provide, it's a bargain.
If riding this with any frequency, buying tokens would save money. If using this weekdays, get a monthly pass. Students may also buy a monthly pass. Seniors 65+ gets a free ride after registering at City Hall for an exemption ID card.
Capital transit is on the transit app available for Android and iOS iPhones. read more