Alcatraz runs on a published ferry timetable rather than opening hours in the usual sense. The island is "open" for as long as ferries are sailing, which means the schedule changes noticeably between summer and winter.
How the timetable is structured
- Outbound departures run from morning through the afternoon, plus evening sailings for night tours.
- Return sailings run at regular intervals from the island until a published last boat.
- Frequency is highest in summer and reduced in winter.
- Your ticket fixes only the outbound time. Returns are open.
Typical seasonal patterns
| Season | Outbound frequency | Operating day |
|---|---|---|
| Peak summer | Roughly every 30–45 minutes | Long, with evening night-tour sailings |
| Spring / fall | Roughly every 45–60 minutes | Moderate, some evening sailings |
| Winter | Fewer daytime departures | Shorter; earlier last return |
Choosing a departure time
First sailings of the day
Calmer decks, a quieter cellhouse and the best chance of clear morning light before the fog burns in or rolls back. Best for families and photographers alike.
Midday sailings
The busiest window. Everything is open and running, but the cellhouse is at its most crowded and the queue at the pier is longest.
Late afternoon and night sailings
Lower passenger numbers, sunset over the Bay, and evening-only programs. Availability is tightest — see Alcatraz island tours.
Holidays and closures
Service does not operate on a small number of major holidays, and severe weather can occasionally disrupt sailings. Because tickets are timed and capacity-limited, check the current schedule the day before you travel.
Building your day around the schedule
Work backwards: pick your sailing, subtract 30 minutes for arrival, then add travel time to Pier 33. Add about three hours from your departure for the round trip with a standard island visit — the arithmetic is laid out on Alcatraz tour duration and Alcatraz trip.
Frequently asked questions
What time does the first Alcatraz ferry leave?
The first sailing is typically in the morning, with exact times varying by season. Check the current timetable before booking.
What time is the last ferry back from Alcatraz?
Last returns are considerably later in summer than in winter. Note the posted last-departure time when you arrive on the island.
Is Alcatraz open every day?
Ferries run year-round apart from a few major holidays, with reduced winter frequency and occasional weather disruption.
How often do Alcatraz ferries run?
Roughly every 30–45 minutes in peak season and less frequently in winter, plus separate evening sailings for night tours.