Komodo to Alor Liveaboard: The Crossing East

Most divers meet Komodo and Alor on separate trips, with a flight to Labuan Bajo for the first and a much longer journey through Kupang for the second. The sea between them is roughly 500 kilometres of volcanic coast, quiet bays and straits that very few dive boats use. A one-way liveaboard sails it in nine to eleven nights, diving Komodo's currents at the start, the north coast of Flores in the middle and Alor's walls and muck at the end. We run the crossing on Neptune One and King Neptune in August 2027 and August 2028, and this guide covers how it works, what it costs and who it is for.

If you already know scuba diving in Komodo, the crossing is the most natural next step east. It keeps the park's best-known sites in the first few days, then trades the crowds of Labuan Bajo for a coastline where a dive boat is still an event. If you have never been to either, it is a long trip to start with, but it shows you two of Indonesia's most distinct dive regions in one go, with a transition between them that you would never see from a plane.

Everything below comes from our published schedule and fares. Where we describe the route, read it as the usual shape of the trip: the captain and cruise director choose the exact sites day by day from tides, wind and what they find, and on an expedition route that matters more than on a park loop.

What is a Komodo to Alor liveaboard?

A Komodo to Alor liveaboard is a one-way dive cruise that boards in Labuan Bajo, dives Komodo National Park, then sails east along Flores to finish among Alor's islands.

• Nine to eleven nights on board
• Komodo drifts and manta sites
• Quiet north Flores reefs
• Alor walls and muck

It sits between a Komodo round trip and a full Banda Sea expedition: longer and more varied than the first, closer to home and calmer than the second.

You will find it as:

• Nine-night August crossings on Neptune One
• Eleven-night August crossings on King Neptune
• A route that opens in Komodo National Park

In short: it is the way east from Komodo, with dives the whole way.

Komodo to Alor crossing vs a dedicated Alor trip: what is the difference?

Both get you to Alor's reefs. They suit different divers, and most of the difference is in how many Alor dives you end up with.

The crossing

You board in Labuan Bajo and finish in Alor nine or eleven nights later. The first days are in Komodo, the middle of the trip follows the north coast of Flores, and the final days are in Alor. You see three regions, with the boat moving most nights.

A dedicated Alor trip

You fly to Alor through Kupang and spend the whole trip there, at the walls of the Pantar Strait and the muck sites of Kalabahi Bay. Neptune One runs two six-night Alor Expedition trips from Kalabahi in September 2028, for example. You get more Alor dives and none of the others.

Key distinction:

• The crossing trades some Alor time for Komodo, north Flores and a trip with no flight at the start.
• The dedicated trip trades that variety for more days at Alor's best sites.

There is a practical difference too. Getting to Alor means three flights for most international travellers, with Kupang in the middle. A crossing replaces the inbound half of that with a flight to Labuan Bajo, which is one of the easier airports in eastern Indonesia to reach. You still fly home from Alor, so the saving is half the journey rather than all of it.

The route from Komodo to Alor

The order of the regions is set by the map, west to east. The sites inside each are not. Treat what follows as the typical plan for an August crossing, not a fixed timetable.

Komodo National Park

The trip starts in Labuan Bajo and spends its first days in the park. In August that usually means the northern and central sites, where the water is warmer and clearer: pinnacles and drifts such as Castle Rock, Crystal Rock and Batu Bolong, and the manta cleaning stations of the centre. There is usually a morning ashore for the Komodo dragons, with a ranger. If you want the colder southern sites as well, our guide to north and south Komodo diving explains why they need a longer park trip than a crossing can give them.

The north coast of Flores

Leaving the park, the boat turns east along the north coast of Flores, the sheltered side of the island in the dry season. This is the least-dived stretch of the trip. Riung and its Seventeen Islands marine park, roughly a quarter of the way to Alor, have shallow reefs and a mangrove island with a large fruit bat colony, and further east the bays around Maumere give macro diving on sand and coral slopes. The diving here is gentler than Komodo, with less current, and it suits the middle of the trip well. Exactly which bays the boat uses depends on wind and on the plan for the final days, so think of this section as the part of the route with the most room to change.

The passage east

Between Flores and Alor the boat passes the volcanic islands of the Solor and Alor archipelagos, Adonara, Lembata and Pantar among them. Much of this distance is covered at night. On a clear morning the volcanoes, several of them active, make for some of the most striking scenery of the whole trip, and dolphins are often seen in the straits.

Alor and the Pantar Strait

The last days are in Alor. Two kinds of diving sit close together here. In the Pantar Strait, around the small islands of Pura and Ternate (not the Ternate of North Maluku), the walls drop steeply into blue water and the current can run hard; Kal's Dream, a pinnacle named after the writer and photographer Kal Muller, is dived only around slack tide and can hold reef sharks, dogtooth tuna and dense schools of fish. Clown Valley at Pura is a slope covered in host anemones. A short sail away, Kalabahi Bay is a long, sheltered inlet with black-sand muck sites such as Mucky Mosque, where frogfish, ghost pipefish, mimic and wonderpus octopus and, on a lucky dive, rhinopias turn up.

Alor's water is the detail most divers underestimate. The surface can feel like 27 or 28 degrees while a thermocline at 15 to 25 metres drops several degrees colder, and in the upwelling months some sites read 20 degrees or less. Our Alor liveaboard guide goes deeper into the sites and the conditions.

How a Komodo to Alor crossing works

A crossing runs on the usual liveaboard day of dives and meals, with more and longer night sails than a park loop.

1. Boarding in Labuan Bajo

You are collected from Komodo airport or your hotel as part of the group transfer included in the fare. The first afternoon goes to cabins, the safety briefing and kit set-up, and often a gentle check dive close to town.

2. Komodo first

The park days come first, while you are fresh. They are the hardest diving of the first half of the trip, with tide-driven current, negative entries and reef hooks on some sites. The guides judge everyone's comfort on the early dives and group divers accordingly.

3. Sailing east at night

Most of the distance along Flores and through the straits is covered after dinner. On two or three nights the engine runs for many hours. Lower-deck cabins move less in a swell; upper-deck cabins have the windows.

4. Up to four dives a day

The fare includes up to four guided dives a day with tanks, weights and a guide. Long sailing days take some of those away, so nobody should count on four dives on every day. The total for a crossing sits well below what nine times four would suggest.

5. Finishing in Alor

The last dives fall on the penultimate day, leaving the 18 to 24 hours before flying that dive medicine guidance recommends after several days of repeat diving. You disembark in Alor on the final morning; the exact port is confirmed with your booking.

A worked example: Neptune One, 17 to 26 August 2027

Here is a real departure. Neptune One boards in Labuan Bajo on 17 August 2027 and arrives in Alor on 26 August: ten days and nine nights. The plan runs from Komodo National Park along the north coast of Flores to the Pantar Strait and Kalabahi Bay. The fare is USD 3,750 per person in a lower-deck Deluxe Suite and USD 4,350 in an upper-deck Deluxe Sea View cabin with a private balcony; the Deluxe Sea View cabins without a balcony were already sold out when we checked in November 2026. The fare includes every meal, soft drinks, up to four guided dives a day and the group transfers. Komodo park fees and any local fees along the route, a fuel surcharge where it applies, nitrox, rental gear and crew tips are extra, and we confirm the fees for your departure when you book. Two days after arrival, on 28 August, the same boat leaves Alor for Wakatobi, so the crossing can be the first half of a much longer trip.

Why the crossing runs in August

August is the heart of the dry season across Nusa Tenggara. The southeast trade winds are steady, rain is rare, and the north coast of Flores sits in the lee of the island, which is exactly the side the route follows. That shelter is what makes the passage comfortable. In the wet months, roughly December to March, the northwest monsoon turns the same coast into a lee shore, and most boats stay away.

The timing also fits the boats' wider year. Both of our crossings leave Labuan Bajo at the end of the Komodo high season and deliver the boat to Alor in time for the routes that follow it east and north, to Wakatobi and the Banda Sea, in late August and September. That is also why there are only one or two of them each year. The exception is King Neptune's 6 June 2028 departure, which sails the route the other way, from Kalabahi back to Labuan Bajo. It is shorter, at nine nights, and finishes in Komodo rather than starting there.

Water temperature changes along the way, and it is the one thing worth packing for carefully. The figures below are typical August ranges from the published conditions for each region; any given week can differ.

The practical answer is a 5 mm full suit with a hood for the Alor days, and a vest if you feel the cold. A 3 mm suit is comfortable on the Flores reefs, but a cold thermocline at 20 metres on the last morning in the Pantar Strait is not the moment to discover you packed light.

Komodo to Alor liveaboard departures and prices

Here is every crossing between Komodo and Alor on our schedule, with the published fares per person in November 2026. On King Neptune the lowest fare belongs to the Sea View Single Cabin, built for one person, so we show the shared fare for two people as well.

Per night, Neptune One works out at about USD 417 in its entry cabin, which matches its Bali to Komodo crossing and sits below its own seven-night Komodo trips. King Neptune costs about USD 592 a night on the 2027 departure and about USD 700 on the 2028 one, for a shared main-deck cabin. That 2028 rise, roughly 18 per cent on the same route, is a fair reason to book the 2027 date if both work for you.

The gap between the boats has real causes. King Neptune is the larger and newer boat, 46 metres long and launched in 2026, with ten cabins for 20 guests, a crew of 22 and nitrox refills included in the fare. Neptune One is a 39-metre phinisi with eight cabins for 16 guests, and nitrox is extra. King Neptune's crossings are also two nights longer, which buys more time at both ends. Both boats include up to four guided dives a day, meals, soft drinks and the group transfers.

Outside the fare on either boat: Komodo National Park fees and any local fees along the route, charged at cost and confirmed when you book; a fuel surcharge on some departures; rental gear; alcohol; and crew tips. On Neptune One, add nitrox if you use it.

What to check before you book a Komodo to Alor liveaboard

These are the questions we would ask of any operator on this route, ourselves included. Several only matter on a one-way expedition.

1. Where exactly it ends

"Alor" can mean Kalabahi or another anchorage, and the port decides your flight home. Get it in writing before you book flights. Ours is confirmed with your booking.

2. How the days split between regions

Ask how many days are planned in Komodo, on the Flores coast and in Alor. A crossing that spends six days in Komodo is a different trip from one that spends four in Alor.

3. Full dive days versus sailing days

Nine nights is not nine days of four dives. Ask which days carry long passages, and how many dives a day the plan expects on them.

4. The current and your logbook

Komodo and the Pantar Strait both have strong current. We recommend Advanced Open Water or equivalent and recent drift experience. Say so honestly if you have neither, because it changes how the guides plan your dives.

5. Exposure protection

Ask what water temperatures the crew saw on the same route last season. In Alor the answer is often colder than the brochure average.

6. What the fees cover

Komodo's park fees are well known. Charges further east are less so. Ask for the total per person for the whole route.

7. Your flight out of Alor

Alor's Mali airport has few flights, mostly a turboprop to Kupang, and schedules change. Ask what time the boat arrives, and leave a night in Kupang or Bali before any long-haul connection.

Joining the crossing to the next trip

A crossing that ends in Alor is rarely the end of the boat's journey, and it does not have to be the end of yours. Both boats continue east two days after they arrive. In 2027, Neptune One leaves Alor for Wakatobi on 28 August, two days after its Komodo crossing lands, and King Neptune leaves Alor for the Banda Sea on 12 September, two days after its own. In 2028 the pattern repeats: King Neptune sails from Kalabahi to Wakatobi on 20 August, and Neptune One runs two six-night Alor Expedition trips from Kalabahi in early September, then crosses to the Banda Sea.

Two days in Kalabahi between trips is short but workable, and the town has enough to fill them: the market, the bay and the traditional villages inland, which are known for their ikat weaving and the bronze moko drums that give Alor one of its nicknames. Ask us about this when you book, because a back-to-back booking has to be confirmed on both trips at once, and some cabin types sell out first.

If you want to see where those next trips lead, our Wakatobi liveaboard guide and Banda Sea diving guide cover them. And if you are coming from further west, the June Bali to Komodo liveaboard on Neptune One is the leg before this one; between the two sits the whole of the Komodo high season.

Who this crossing is for, and who it is not for

The two boats split the route between them, and the right one depends mostly on budget. The Neptune One liveaboard runs the nine-night version at the lower price; the King Neptune liveaboard runs the eleven-night version with more space and nitrox included. Either way, the trip suits:

• Divers who have done Komodo and want to see what lies to the east.
• Photographers who want Komodo's big animals and Alor's muck critters on one trip.
• Anyone planning a long season in eastern Indonesia, linking the crossing to Wakatobi or the Banda Sea.
• Divers who like quiet sites and do not mind trading some comfort ashore for remoteness.

It is not right for everyone, and we would rather say so. If this is your first liveaboard and you are not yet comfortable in current, the two strongest-current regions of the trip, Komodo and the Pantar Strait, sit at either end of it, and the middle will not build enough experience to change that. If you feel the cold, Alor's thermoclines will test you. If your partner does not dive, nine or eleven days of dive-led routine with few towns along the way is a long time. And if what you want is the most Komodo for your money, a round trip from Labuan Bajo gives you more of the park than a crossing does.

Getting to Labuan Bajo and home from Alor

The start is easy. Labuan Bajo's Komodo airport has direct flights from Bali, a little over an hour, and from Jakarta, and it is a few minutes from the harbour. Arrive at least a day early. On a one-way trip a missed boarding cannot be made up the next morning, because the boat is gone. Our guide to things to do in Labuan Bajo covers where to stay and how to use a spare day.

The end needs more planning. Alor's Mali airport (ARD) sits about 10 kilometres from Kalabahi and is served mainly by a turboprop to Kupang in West Timor, a flight of around an hour, with limited frequencies that change from season to season. From Kupang there are direct flights to Bali and Jakarta. Plan on a full travel day from Alor to Bali, and leave a night in Kupang or Bali before a long-haul flight rather than trying to connect the same day.

Make sure your insurance covers diving at the depths you plan and medical evacuation from a remote area. Alor and the Flores coast are a long way from a recompression chamber, and that distance is part of what keeps the reefs so quiet. Keep your certification card, logbook and insurance details in your hand luggage, along with any medication you need for the full length of the trip.