Premium vessel, peak
9–12 months ahead
Large boats and dive-equipped liveaboards in July, August or the Christmas window. The tightest market there is.
What Is Actually Free
Availability is the real constraint on a Komodo charter, not budget. A deposit is what turns an enquiry into a held boat.
A deposit of 20 to 50 percent against a signed agreement takes the boat off the market. Until that clears, nothing is held, however warm the conversation was.
- Peak dates on premium vessels go nine to twelve months ahead.
- Balance falls due 30 to 90 days before departure, most often 60 to 90.
- Larger boats have fewer slots, so they fill first regardless of price.
- 20–50%
- Deposit to hold the dates
- 30–90 d
- Before departure, balance due
- 9–12 mo
- Lead time for peak dates
- 120 d
- Where refunds usually still exist
How far ahead, by what you want
Vessel size and season together decide the window. Neither alone does.
Mid-range, shoulder
4–6 months ahead
A phinisi for four to eight guests in April, May, September or October. Comfortable margin.
Short trip, shoulder
1–3 months ahead
A 3-day, 2-night charter outside peak can often still be placed. Choice narrows, availability does not vanish.
Last minute
10–20% possible discount
Cancellations surface inside 60 days, when balances fall due. Flexible dates and no fixed vessel required.
Why some boats vanish and others do not
Scarcity in this market is structural, not seasonal.
Large vessels
Boats for eight to sixteen guests have fewer slots in the year and serve every group booking. They go first.
Dive-equipped boats
Compressors, tanks and a dive deck narrow the fleet sharply. Prime dive dates fill fastest of all.
Christmas and New Year
Held further out than the July peak, often with a minimum charter length attached.
Repeat guests
The best crews are rebooked by people who sailed with them last year, before the date reaches the market.
Shorter charters
A 3-day trip slots into gaps a 7-day one cannot. Short and flexible beats long and fixed at late notice.
The 60-day window
Balances fall due here, which is when cancellations appear. The only reliable source of late availability.
What it actually buys
Twenty to fifty percent, paid against a signed charter agreement, takes the vessel off the market for your dates. The operator forgoes other bookings from that moment, which is why the deposit is usually non-refundable or only partly refundable. Thirty to fifty percent is the most common band; fifty tends to appear on peak dates and long charters.
Ask in writing whether the deposit is refundable before you send it. It is the single question people skip and later regret.
Refunds are tiered, and they tighten fast
Beyond about 120 days most operators will refund the deposit less an administrative fee, or convert it to a credit. Between 60 and 120 days a partial refund of the total is typical. Inside 60 days the full fee is normally forfeit, because the boat and crew have been held for you and cannot be resold. Travel insurance that explicitly names charter cancellation is worth more here than on any hotel booking.
Availability, answered
How far ahead should I book?
Nine to twelve months for a premium vessel on peak dates, four to six for a mid-range phinisi in the shoulder months, and one to three for a short charter outside peak.
What deposit is required?
Twenty to fifty percent, with thirty to fifty most common. It is paid against a signed agreement and is usually non-refundable or only partly refundable.
When is the balance due?
Thirty to ninety days before departure, most often sixty to ninety. Larger charters tend to sit at the longer end.
Can I get a refund if I cancel?
Beyond 120 days, usually the deposit less a fee or as a credit. Between 60 and 120 days, a partial refund. Inside 60 days, normally nothing.
Are there last-minute discounts?
Sometimes, of roughly 10 to 20 percent, when a cancellation leaves a slot unsold close to departure. It requires flexible dates and no attachment to a particular boat.
Ask what is free
Dates and party size are enough for a real answer. Nothing is held until a deposit clears, so asking costs nothing.