The OnBoard Courier for Indonesia

After it come Denpasar-Bali Island (DPS) with 61 destinations and about 211.1 departures a day, Surabaya (SUB) with 39 destinations and about 129.7 departures a day, Ujung Pandang-Celebes Island (UPG) with 35 destinations and about 105.3 departures a day, Yogyakarta-Java Island (YIA) with 17 destinations and about 47.6 departures a day and Mataram (LOP) with 12 destinations and about 42.3 departures a day. Those are the alternates. When the primary gateway is shut by weather, a strike or a curfew, they are what a courier is rebooked through. Between them the 6 airports in Indonesia that publish departures schedule about 1,003.9 movements a day and reach 253 separate destinations, counting each city once per airport.

Reach matters more than frequency for a hand carry, because a courier flies whatever is leaving. From CGK alone, 970 airports are reachable with exactly one change, on top of the 89 served nonstop. That is a normal spread for a well connected gateway, and it means a routing exists for most requests without waiting for a specific weekly service. It is computed from the scheduled network rather than from a booking engine.

71 per cent of everything scheduled to leave the country stays inside it, across 58 domestic destinations. That matters on a hand carry because it decides whether the last leg can be flown or has to be driven. A consignee outside the gateway city is then a connecting flight, not a four hour drive.

Outside its own borders the country is tied most closely to Malaysia, about 66.5 flights a day, Singapore, about 60.6 flights a day, Australia, about 41.6 flights a day, China, about 27.6 flights a day and Thailand, about 13.3 flights a day. Those are the markets a courier can reach from Indonesia without a long connection, and they are also where a third country leg most often starts: an item that has to go from Indonesia to somewhere with no direct service usually travels through one of them.

69 airlines fly out of Indonesia in this data. Counted by how many of the country's routes each one appears on, the widest networks belong to Batik Air on 72 routes, Lion Air on 68 routes, Garuda Indonesia on 62 routes, Citilink on 59 routes and Super Air Jet on 55 routes. The carrier matters to a hand carry more than it does to freight, because cabin baggage rules, what counts as an acceptable carry on item and whether an extra seat can be bought are set by the airline and not by the airport.

The longest single sector out of CGK in this data runs to Amsterdam, Netherlands (AMS), 11,354 km by great circle. Great circle is not a flown distance and will read short against a real routing, but it is the honest way to state a reach: it says what one aircraft does without stopping, which is exactly the question a courier desk is asking.

Indonesia runs 3h ahead of Dubai. That is why the departure chosen matters more than the flight time: the same sector can land inside the consignee's working day or an hour after it closed, depending on which bank the courier makes. An offset this small is forgiving: almost any morning departure still arrives inside the working day at the other end, and the desk plans around the airport rather than around the clock.

The operating notes file records one entry for DPS, under nyepi closure: The airport closes for 24 hours once a year for Nyepi, the Balinese day of silence, in March or April; the date moves with the Balinese calendar. No flights operate and nothing moves on the island.

Counting what is already published, this site holds 10 city pages, 4 standalone city pages, 6 Atlas entries, 2 airport pages, 5 lane pages and 8 trade and history pages for Indonesia, and every one of them is linked from this page. That is the point of a country index: the material exists, it was written one page at a time, and until now there was no single place that connected it.

Alongside the reference material there is the country desk page and the courier recruitment page for people who already fly this market. The country page sells, the city pages answer, and the lane pages price. They are kept apart because a reader arrives at exactly one of those three questions and merging them would bury the other two.