Volcanic ash from Mount Anak Krakatau has disrupted air travel across parts of Java and Sumatra, prompting the temporary closure of several airports, including airports serving Jakarta.
This notice is being continuously updated as new verified information becomes available.
As conditions may change at short notice, EKONID members, partners and other travellers to, from or within Indonesia are advised to confirm the latest flight information directly with their airline and the relevant airport operator.
LATEST UPDATE — 9 September 2026
According to the latest information from AirNav Indonesia, all airports that were temporarily affected by volcanic ash from Mount Anak Krakatau have now resumed operations.
The following airports are now open:
- Soekarno-Hatta International Airport, Tangerang — operations resumed at 00:30 WIB on 8 September
- Halim Perdanakusuma Airport, Jakarta — reopened at 00:40 WIB on 8 September
- Husein Sastranegara Airport, Bandung — reopened at 00:42 WIB on 8 September
- Budiarto Airport, Curug — reopened at 01:25 WIB on 8 September
- Pondok Cabe Airport, South Tangerang — reopened at 01:28 WIB on 8 September
- Atung Bungsu Airport, Pagar Alam, South Sumatra — reopened at 08:12 WIB on 7 September
- Muhammad Taufiq Kiemas Airport, Pesisir Barat, Lampung — reopened at 09:31 WIB on 8 September
- Radin Inten II Airport, Lampung — reopened at 09:45 WIB on 8 September
- Salakanagara Tanjung Lesung Airport, Pandeglang, Banten — reopened at 09:50 WIB on 8 September
Flight Operations
Although all affected airports have now reopened, flight operations may still be experiencing delays and disruptions as airlines work through the backlog caused by the volcanic-ash event.
Passengers are advised to check directly with their airline for the latest flight status before travelling, as individual flights may still be delayed, rescheduled, or cancelled.
Authorities continue to monitor Mount Anak Krakatau and volcanic ash conditions. Further operational restrictions may be introduced if conditions change.
Situation overview
Mount Anak Krakatau, located in the Sunda Strait between Java and Sumatra, entered a period of continuous eruption on the evening of 4 September 2026. According to Indonesia's Geological Agency, the continuous eruption episode lasted approximately 25 hours and ended shortly after midnight on 6 September.
Further Strombolian eruptions have since been recorded, and authorities continue to closely monitor the volcano. As of 7 September, Anak Krakatau remains at Level III (Siaga/Alert), with the Geological Agency assessing that the probability of further eruptions remains high.
Volcanic ash from the eruption has spread across a wide area. The Meteorology, Climatology and Geophysics Agency (BMKG) reported that ash at lower atmospheric levels was spreading across parts of Banten, western and southern West Java, Lampung and Bengkulu, while ash at higher altitudes extended further west over the Indian Ocean.
Volcanic ash can pose a serious safety risk to aircraft. Airport and air navigation authorities have therefore adjusted operational restrictions as the ash cloud develops.
Airport closures remain subject to change
Eight airports were initially affected by temporary closures due to volcanic ash. AirNav Indonesia has stressed that airport status is being adjusted dynamically according to the development of the volcanic ash cloud and aviation safety considerations.
Travellers planning to fly to, from or through affected airports should therefore check directly with their airline before travelling to the airport. Even after an airport reopens, individual flights may remain delayed, cancelled or rescheduled as airline operations resume.
Safety precautions in areas affected by volcanic ash
Authorities have advised communities in areas affected by volcanic ash to remain calm and follow instructions issued by local authorities.
Indonesia's Geological Agency recommends that people exposed to volcanic ash reduce outdoor activities and wear a mask when outside to minimise the risk of respiratory irritation. Residents and visitors are also prohibited from conducting activities within a three-kilometre radius of Anak Krakatau's centre of activity.
People in affected areas are encouraged to continue monitoring information from official authorities, including the Geological Agency/PVMBG, BMKG, BNPB and local disaster management agencies.
AHK Indonesia/EKONID will continue to monitor developments and update this notice as further verified information becomes available.