Jakarta flights resume after Anak Krakatau ash chaos

Flights to and from Jakarta resumed on Tuesday after ash from Indonesia’s Anak Krakatau volcano forced a two-day shutdown of the capital’s main airports, disrupting nearly 3,000 flights and affecting an estimated 341,000 travellers across the country.

Jakarta’s airports reopen after two-day shutdown

Jakarta’s Soekarno-Hatta International Airport restarted operations early Tuesday local time following a blanket closure triggered by ash from Anak Krakatau’s latest eruption. The capital’s secondary Halim Perdanakusuma Airport has also begun to restore services after being shut as ash drifted over the Jakarta region and key air corridors.

Published coverage indicates that the shutdown began in the early hours of Sunday, when Anak Krakatau sent a towering ash plume into the atmosphere and surveillance data showed contamination of airspace above western Java and southern Sumatra. The eruption and its ash cloud led aviation authorities and airport operators to suspend take offs and landings at Jakarta and several regional gateways as a precaution for aircraft safety.

Reports from Jakarta note that the volcano’s continuous eruptive phase, which included lava fountains and powerful booms, eased on Sunday. Even as activity subsided, ash lingering at cruising altitudes continued to disrupt jet routes into Monday, prolonging airport closures and leaving terminals filled with stranded passengers waiting for updates.

By Tuesday, conditions on key flight paths into Jakarta had improved enough for services to restart. Airlines began the process of repositioning aircraft and crew, while airports introduced staggered departure banks in an effort to keep ramp congestion and air traffic delays manageable as operations ramp up.

Nationwide flight disruptions hit 2,961 services

Transportation ministry figures cited in national and international outlets show the scale of the disruption. As of Monday afternoon, volcanic ash from Anak Krakatau had affected 2,961 flights across Indonesia, including 2,339 domestic services and 622 international routes. The shutdowns and diversions left around 341,000 passengers facing cancellations, rebookings or significant delays.

The numbers reflect the impact well beyond Jakarta. Ash advisories and airspace restrictions reached into parts of Sumatra, Java and nearby island provinces, prompting the temporary closure or curtailment of operations at as many as seven airports at the peak of the disruption. Carriers rerouted long haul services around the affected airspace, while some regional flights were diverted to alternative airports with clearer conditions.

Publicly available information from Indonesia’s transport authorities indicates that initial disruption figures rose rapidly over a 48 hour period. Early Sunday assessments counted several hundred cancelled or delayed flights; by late Monday, as closures were extended and ash forecasts expanded, the tally had climbed to nearly 3,000 affected movements and hundreds of thousands of travellers.

Airlines serving Jakarta, including regional low cost and full service operators, announced waves of cancellations and schedule changes over the two day closure. Some carriers advised passengers not to travel to the airport without confirmed rebookings, while others opened flexible change or refund options for tickets touching Jakarta and other impacted cities.

Travellers face long queues and complex rerouting

Scenes from major hubs, including Soekarno-Hatta and Bali’s I Gusti Ngurah Rai International Airport, showed long queues at check in counters and customer service desks as travellers tried to secure seats on later flights or alternative routes. Media reports from Jakarta and Bali describe passengers camping out in terminals, monitoring airline apps and social media feeds for confirmation that their flights would operate.

With Jakarta functionally offline for two days, many domestic travellers attempted to re-route through secondary airports or to switch to rail and road links in western and central Java. However, the broad geographic spread of the ash cloud meant that several smaller airports also imposed restrictions, limiting options for detours. Tourism dependent destinations such as Bali and Lombok experienced knock-on effects as visitors found themselves unable to connect through Jakarta to onward international services.

Coverage from Indonesian news outlets highlights criticism of uneven contingency planning and communication, particularly during the first day of the disruption. Some passengers reported receiving late notifications of cancellations, while others arrived at airports to find departure boards blank and limited information on revised schedules. As the situation evolved, airlines and airports increased the frequency of online updates and pushed more alerts through messaging apps and email.

Travel industry observers note that the Anak Krakatau event has once again underlined how quickly volcanic ash can ripple through Indonesia’s dense domestic air network and its regional connections. The country’s reliance on air links for business and tourism means that even short term closures can strand large numbers of passengers and stress airline and airport resources.

Ongoing monitoring as ash risk persists

Indonesia’s geological agency reports that Anak Krakatau’s major eruptive phase ended on Sunday, although the volcano remains active and under close observation. The latest aviation notices indicate that ash levels along main approach paths to Jakarta have decreased, allowing flights to resume, but monitoring of upper level winds and ash dispersion continues.

Authorities and air navigation providers are using data from satellite imagery, ground based instruments and pilot reports to refine ash advisories for western Java and surrounding regions. Published information from aviation briefings shows that some air routes remain constrained or have altitude restrictions, which could still affect flight times and routings in the coming days even as airports reopen.

Travel advisories from airlines and tourism bodies are encouraging passengers with near term flights to Jakarta and other previously affected cities to check their flight status before heading to the airport, as schedules may be adjusted while backlogs are cleared. Carriers are prioritising stranded travellers and may temporarily operate additional sectors or larger aircraft on key routes to restore connectivity.

While the resumption of flights marks a turning point after two days of severe disruption, travel patterns across Indonesia are expected to remain unsettled in the short term. Further operational changes are considered possible if Anak Krakatau’s activity intensifies again or if ash is carried into busy air corridors by shifting winds.

Impact on tourism and regional connectivity

The timing of the eruption has raised concerns within Indonesia’s tourism sector, coming as the country works to sustain a recovery in visitor arrivals. Jakarta serves as a primary international gateway and a major domestic transfer point to leisure destinations such as Bali, Lombok and Yogyakarta. The grounding of nearly 3,000 flights over two days created missed connections for both inbound tourists and Indonesians returning home.

Analysts cited in regional coverage note that short lived events of this kind typically have limited long term impact on overall visitor numbers, provided that clear information is available on safety conditions and recovery of services. However, the Anak Krakatau disruption has drawn renewed attention to the need for robust crisis communication strategies, particularly in multiple languages, to support international travellers who may be unfamiliar with Indonesia’s volcanic landscape.

In the immediate term, hotel and tour operators in affected cities have been coordinating with travel agents and airlines to assist stranded guests and adjust itineraries. Some properties near major airports offered late check outs or flexible booking changes as departures were postponed. Travel forums and social media channels have featured practical advice from recent travellers on rebooking options and overland alternatives for reaching Jakarta once flights are confirmed.

As operations stabilise, industry stakeholders are expected to review the Anak Krakatau episode alongside earlier disruption events in the region to refine playbooks for future volcanic incidents. For now, the priority for airlines, airports and travellers alike is navigating the restart of Jakarta’s air links and unwinding a logjam that has touched hundreds of thousands of journeys across Indonesia.

ANTARA News: Anak Krakatau ash disrupts 2,961 flights, strands 341,000 passengers

AP News: Flights to and from Indonesia's capital resume after volcanic eruption

CNA: Several Indonesian airports remain shut due to Anak Krakatau ash