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Air travel in and out of Indonesia’s capital faced fresh disruption on Sunday morning after an ash cloud from the erupting Anak Krakatau volcano prompted the temporary closure of Jakarta’s Soekarno-Hatta International Airport and disrupted 33 flights.
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Airport closure extended as ash reaches Jakarta airspace
Publicly available notices show that Soekarno-Hatta International Airport, the country’s main aviation gateway serving Jakarta, was initially closed to flight operations from around 01:30 to 05:30 local time on Sunday 6 September 2026, after volcanic ash from Anak Krakatau was detected in the vicinity of the airfield. The shutdown was issued through a Notice to Airmen (NOTAM) following positive ash findings in on-site paper tests at the airport.([flac.or.id](https://flac.or.id/erupsi-anak-krakatau-bandara-soekarno-hatta?utm_source=openai))
Subsequent monitoring indicated that ash contamination in the terminal airspace remained a concern, and reports from Indonesian media state that the airport closure window was then extended to 09:30 local time. Coverage notes that the decision followed additional surface tests around dawn that again indicated the presence of volcanic particles at or near ground level.([metrotvnews.com](https://www.metrotvnews.com/read/NOlC9Bl9-penutupan-sementara-bandara-soetta-diperpanjang-imbas-erupsi-anak-krakatau?utm_source=openai))
Information compiled by local outlets and aviation-focused organisations indicates that the ash plume has spread across parts of Banten, Jakarta and West Java, leading airspace managers to reroute or suspend operations in affected sectors above the Sunda Strait and the capital region. Satellite analysis referenced by Indonesia’s meteorological agency BMKG points to at least two main ash clusters drifting over western Java and surrounding waters.([flac.or.id](https://flac.or.id/abu-erupsi-anak-krakatau-jakarta?utm_source=openai))
The closure at Soekarno-Hatta comes after several days of heightened activity at Anak Krakatau, located in the Sunda Strait between Java and Sumatra. Earlier updates on Saturday still described operations at Jakarta’s main airport as normal, but the evolution of the eruption and overnight ash dispersion into early Sunday forced a more cautious posture for flight safety.([finance.detik.com](https://finance.detik.com/berita-ekonomi-bisnis/d-8649806/gunung-anak-krakatau-erupsi-kemenhub-pastikan-belum-ganggu-penerbangan?utm_source=openai))
Thirty-three flights disrupted, with long-haul routes among those hit
Monitoring data compiled up to late Saturday evening and reported by multiple Indonesian news services show that 33 scheduled flights at Soekarno-Hatta were directly affected by the ash-related shutdown. Of those, 16 international flights were cancelled, seven international services were delayed, and five were rescheduled to alternate departure times.([rm.id](https://rm.id/amp/baca-berita/nasional/324883/bandara-soetta-ditutup-hingga-0930-wib-33-penerbangan-terdampak-abu-vulkanik?utm_source=openai))
The disruption list includes long-haul and regional connections linking Jakarta with Singapore, Hong Kong, Sydney, Seoul Incheon, Doha, Amsterdam and Kuala Lumpur, according to publicly available summaries of the operational impact. These changes primarily affected overnight and early-morning departures and arrivals, typically some of the busiest waves for international traffic at the airport.([flac.or.id](https://flac.or.id/erupsi-anak-krakatau-bandara-soekarno-hatta?utm_source=openai))
Domestic traffic also saw several adjustments. Local coverage notes at least four cancellations and one diversion on routes connecting Jakarta with popular Indonesian destinations including Denpasar, Surabaya and Lampung, as airlines re-evaluated whether flight paths could safely avoid the ash columns and contaminated air corridors.([flac.or.id](https://flac.or.id/erupsi-anak-krakatau-bandara-soekarno-hatta?utm_source=openai))
At the terminal, passengers faced a mix of outright cancellations, last minute schedule changes and rebookings. Some international carriers and regional low cost airlines publicly released travel advisories and flexible ticketing policies for trips to and from Jakarta over 5 and 6 September, anticipating ongoing volatility as the ash cloud’s trajectory shifts.([cathaypacific.com](https://www.cathaypacific.com/cx/ja_JP/latest-news/flight-disruptions/flexible-ticket-conditions-for-volcanic-eruption-at-mountain-anak-krakatau-in-indonesia.html?cxsource=nc&utm_source=openai))
Airlines activate contingency plans and flexible ticketing
Several airlines serving Jakarta have activated contingency measures in response to the Anak Krakatau eruption. A number of international and regional carriers have published special ticketing guidelines for Jakarta routes, allowing affected passengers to change travel dates without standard rebooking fees for journeys scheduled on 5 and 6 September 2026, subject to seat availability and fare differences.([cathaypacific.com](https://www.cathaypacific.com/cx/ja_JP/latest-news/flight-disruptions/flexible-ticket-conditions-for-volcanic-eruption-at-mountain-anak-krakatau-in-indonesia.html?cxsource=nc&utm_source=openai))
Regional carrier AirAsia has confirmed through a public advisory that “a number” of flights to and from Jakarta were either cancelled or rescheduled as a result of extensive ash clouds forecast to affect airspace across parts of Indonesia. The airline indicates that its operations team is adjusting flight paths where feasible, while also cancelling services that would intersect high risk areas identified in volcanic ash advisories.([ebs.publicnow.com](https://ebs.publicnow.com/view/C9973492753FD11D1DB1B7EF8065CA4416D5B7E5?utm_source=openai))
Other airlines appear to be taking a similar approach, combining airspace rerouting with schedule adjustments. Industry reports underline that volcanic ash can cause severe engine damage and visibility problems for aircraft, prompting operators to maintain wide safety margins when ash is detected in or near designated flight levels. Aviation meteorology centers in the region continue to issue volcanic ash advisories guiding those operational decisions.([ebs.publicnow.com](https://ebs.publicnow.com/view/C9973492753FD11D1DB1B7EF8065CA4416D5B7E5?utm_source=openai))
Passengers booked on Jakarta bound flights over the weekend are being advised through public channels to check the latest status of their services on airline websites or apps before leaving for the airport, as schedules remain subject to further short notice change while Anak Krakatau’s eruptive phase continues.([ebs.publicnow.com](https://ebs.publicnow.com/view/C9973492753FD11D1DB1B7EF8065CA4416D5B7E5?utm_source=openai))
Volcanic ash risk prompts conservative safety posture
Publicly available information from Indonesia’s transport and meteorological agencies shows that the closure decision at Soekarno-Hatta is grounded in precautionary safety principles that guide global aviation responses to volcanic events. Paper tests at the airport and satellite imagery analyses indicated that ash particles had entered both lower and cruising altitudes near Jakarta, increasing the risk of engine ingestion and abrasion to aircraft surfaces.([metrotvnews.com](https://www.metrotvnews.com/read/NOlC9Bl9-penutupan-sementara-bandara-soetta-diperpanjang-imbas-erupsi-anak-krakatau?utm_source=openai))
BMKG’s latest updates describe two main ash clusters, one oriented over the Sunda Strait and another spreading inland over parts of Banten, Jakarta and West Java. Analysts tracking Himawari 9 satellite data note that the ash columns have reached significant vertical heights, with dispersion driven by upper level winds toward the capital region during the early hours of Sunday.([flac.or.id](https://flac.or.id/abu-erupsi-anak-krakatau-jakarta?utm_source=openai))
Indonesia’s aviation regulator has previously signalled that any incursion of volcanic ash into controlled airspace around key hubs would trigger temporary airport closures or airspace restrictions. Global best practice dictates that aircraft avoid visible or forecast ash entirely rather than attempt to transit reduced concentration zones, especially for large hub airports with dense traffic flows.([sumbar.antaranews.com](https://sumbar.antaranews.com/berita/777267/kemenhub-bandara-soetta-ditutup-sementara-imbas-erupsi-anak-krakatau?utm_source=openai))
While the current closure at Soekarno-Hatta is framed as temporary, publicly available statements from relevant agencies indicate that monitoring will continue on a real time basis. Authorities are expected to adjust the duration of restrictions as updated observations from ground instruments, pilot reports and satellite imagery clarify the ash cloud’s movement and density.([metrotvnews.com](https://www.metrotvnews.com/read/NOlC9Bl9-penutupan-sementara-bandara-soetta-diperpanjang-imbas-erupsi-anak-krakatau?utm_source=openai))
What travelers through Jakarta should expect next
For travelers planning to transit Jakarta on Sunday and in the coming days, the main impact is likely to be residual schedule disruption as airlines work through aircraft rotations and crew availability following the morning shutdown. Some carriers may consolidate lightly booked services or retime flights to avoid periods when ash forecasts are less favorable.([ebs.publicnow.com](https://ebs.publicnow.com/view/C9973492753FD11D1DB1B7EF8065CA4416D5B7E5?utm_source=openai))
Published guidance from several airlines encourages ticketed passengers to make use of fee waivers and online self service tools where available, rather than heading directly to the airport during a closure window. Those with tight onward connections, particularly on long haul itineraries to Europe, the Middle East and the Asia Pacific region, may need to plan for extended layovers or re-routing via alternative hubs.([cathaypacific.com](https://www.cathaypacific.com/cx/ja_JP/latest-news/flight-disruptions/flexible-ticket-conditions-for-volcanic-eruption-at-mountain-anak-krakatau-in-indonesia.html?cxsource=nc&utm_source=openai))
Travel industry observers note that Indonesia’s aviation network is experienced in managing volcanic disruptions, with established coordination mechanisms between airlines, air navigation services and meteorological agencies. Even so, the scale of Anak Krakatau’s ash plume and its proximity to the country’s busiest airport create a challenging operational environment that can change rapidly from hour to hour.([flac.or.id](https://flac.or.id/abu-erupsi-anak-krakatau-jakarta?utm_source=openai))
Those currently planning trips through Jakarta are advised, based on the latest publicly accessible advisories, to monitor airline and airport channels closely and to build additional buffer time into their itineraries while Anak Krakatau’s eruptive activity continues to generate ash affecting western Java’s airspace.([flac.or.id](https://flac.or.id/erupsi-anak-krakatau-bandara-soekarno-hatta?utm_source=openai))
Kemenhub: Bandara Soetta ditutup sementara imbas erupsi Anak Krakatau – Antara
Bandara Soetta ditutup hingga 09.30 WIB, 33 penerbangan terdampak abu vulkanik – RM.id
Erupsi Anak Krakatau ganggu 33 penerbangan di Bandara Soekarno-Hatta – FLAC
Special ticketing guidelines for Anak Krakatau volcanic eruption – Cathay Pacific