A trip to Indonesia has turned into an uncertain wait for thousands of passengers after volcanic ash from Mount Anak Krakatau forced authorities to keep Jakarta’s main airport closed on Monday, September 7, 2026. Soekarno-Hatta International Airport (CGK), one of Indonesia’s busiest aviation hubs, remains shut as officials monitor ash in the airspace and assess whether conditions are safe enough for flights to resume.
The disruption has spread beyond Jakarta, with several other airports also affected and thousands of flights cancelled, delayed or diverted. The latest official information indicates that the closure is a safety measure rather than a permanent shutdown. Authorities are monitoring the movement of volcanic ash and will decide when operations can safely restart.
Soekarno-Hatta International Airport (CGK) Open or Closed Today (September 7)?
Soekarno-Hatta International Airport (CGK) is CLOSED on Monday, September 7, 2026, because of volcanic ash from Mount Anak Krakatau.
Airport authorities extended the temporary closure into Monday as ash continued to affect the airspace around Jakarta. The latest aviation information from Lion Air also confirms that CGK remained closed and that affected flights were cancelled through 6 p.m. local time (WIB).
Reuters reported that Soekarno-Hatta was expected to remain closed until later Monday to allow authorities to assess conditions, clear affected areas and prepare for the possible resumption of flights.
Passengers should therefore not travel to the airport assuming their flight will operate. They should first check their airline’s latest flight status.
Soekarno-Hatta International Airport (CGK): Why Is It Closed Today?
The airport closure follows the eruption of Mount Anak Krakatau, an active volcano located in Indonesia’s Sunda Strait.
The volcano erupted over the weekend, sending lava and volcanic ash into the atmosphere. Ash later spread across parts of western Indonesia, including areas around Jakarta and nearby provinces.
Volcanic ash creates a serious aviation hazard because aircraft engines can ingest the abrasive particles. Ash can also affect visibility and damage aircraft components. Indonesian aviation authorities therefore suspended operations as a precaution.
Indonesia’s meteorological agency BMKG said on September 7 that volcanic ash from Anak Krakatau was directly affecting aviation operations and had led to the temporary closure of eight airports across Java and Sumatra.
AirNav Indonesia described the closures as a mitigation measure designed to protect flight safety while authorities track the ash cloud.
Soekarno-Hatta International Airport (CGK): Which Flights Are Cancelled?
The eruption has caused widespread disruption rather than affecting only a handful of flights.
More than 2,300 flights had been disrupted across the affected airports by Monday, with more than 270,000 passengers impacted, according to reports citing Indonesian authorities. Reuters later reported an even higher cumulative impact as the disruption continued.
Soekarno-Hatta has suffered a particularly large share of the disruption because it is Jakarta’s principal international gateway.
Airlines have cancelled or changed flights operating to and from CGK. Lion Group said several flights through Soekarno-Hatta and Halim Perdanakusuma were cancelled until 6 p.m. WIB on Monday because both airports remained closed.
Passengers should check directly with their airline because individual flight schedules can change as the airport closure is reviewed.
Soekarno-Hatta International Airport (CGK): When Will the Airport Reopen?
There is no confirmed permanent reopening time yet.
The latest update extended the closure to 6 p.m. local time on Monday, September 7, but that does not automatically mean every flight will resume at 6 p.m.
Authorities must first determine whether volcanic ash has cleared sufficiently and whether aviation conditions are safe.
The Indonesian Transportation Ministry has stressed that airports will reopen only when flight safety can be established.
That means the reopening could depend on:
- The movement and concentration of volcanic ash
- Further activity from Mount Anak Krakatau
- Airspace safety
- Airport runway conditions
- Airline preparations
- New aviation safety notices
Passengers should wait for an official airport or airline confirmation before heading to CGK.
Soekarno-Hatta International Airport (CGK): Which Airports Are Affected?
The disruption has spread across several airports in Java and Sumatra.
BMKG reported that volcanic ash had affected the operations of eight airports on Monday morning.
Affected airports include:
| Airport | Status/Impact |
|---|---|
| Soekarno-Hatta International Airport (CGK) | Closed |
| Halim Perdanakusuma Airport (HLP) | Closed |
| Radin Inten II Airport | Affected/Closed |
| Husein Sastranegara Airport | Affected/Closed |
| Budiarto Airport | Affected/Closed |
| Pondok Cabe Airport | Affected/Closed |
| Taufik Kiemas Airport | Affected/Closed |
| Atung Bungsu Airport | Resumed operations Monday morning |
The Indonesian Transportation Ministry listed the affected airports as part of the wider response to the volcanic ash threat.
Indonesia Preparing Alternative Airports for Stranded Passengers
Authorities are also trying to reduce congestion around Jakarta by directing airlines to use alternative airports where possible.
The government has prepared airports in East Java, Central Java and Yogyakarta as alternatives for aircraft originally scheduled to land in Jakarta.
Officials have also arranged transportation support for passengers who need to travel from alternative airports.
The strategy is designed to prevent large crowds from building up at Jakarta’s main airport while operations remain suspended.
What Should Passengers Do If Their Flight Is Cancelled?
Passengers affected by the eruption should first contact their airline before going to the airport.
Travellers can:
- Check their airline’s latest flight status.
- Confirm whether the booking has been cancelled, delayed or diverted.
- Ask the airline about rebooking or refund options.
- Check alternative airports if the airline offers rerouting.
- Keep hotel and transport arrangements flexible.
- Follow official airport and Indonesian aviation updates.
Passengers should also avoid relying solely on older flight information because airport conditions can change quickly when volcanic ash remains in the airspace.
Soekarno-Hatta International Airport (CGK): Helpline Numbers
For airport-related assistance, passengers can use the airport operator’s contact channels.
Soekarno-Hatta/Angkasa Pura contact centre: 138
The official airport information also lists +62 21 550 6823 as a Soekarno-Hatta airport telephone number.
For a cancelled or delayed flight, passengers should also contact the airline directly because airlines handle individual bookings, rebooking and refund arrangements.
Passengers Stranded as Indonesia Flight Chaos Grows
The disruption has created difficult conditions for travellers who had planned to leave Jakarta or continue their holidays elsewhere in Indonesia. The situation has also affected international tourists. In the earlier stage of the disruption, Italian tourist Michel Miegge said his return flight had been cancelled.
“We don’t have any news from the airline. We don’t know if we stay another day in Jakarta or find another flight,” the 32-year-old software engineer told AFP.
“I don’t think it’s possible now. We found a nearby hotel, but we saw that many hotels were fully booked.”
French tourist Carol Odile also faced a cancelled flight while travelling with friends to visit Komodo dragons in Flores.
“We are disappointed, but our group is optimistic. We hope we can go to Flores Island very soon,” the 60-year-old told AFP.
The disruption has left many travellers searching for hotel rooms, alternative flights and different routes to reach their destinations.
Indonesia Volcanic Eruption Today: Is the Situation Improving?
The main eruption activity has eased, but authorities continue to monitor Anak Krakatau because further volcanic activity remains possible.
The Associated Press reported that the main 25-hour eruption had ended, but the volcano continued to show moderate activity, including ash emissions and smaller seismic events.
Officials are therefore treating the airport closures as a precautionary aviation-safety measure.
Indonesia sits on the Pacific Ring of Fire and has more than 120 active volcanoes, making volcanic activity a recurring challenge for aviation and communities across the country.
Soekarno-Hatta Airport Closure: Key Updates
| Question | Latest Status |
|---|---|
| Is Soekarno-Hatta Airport open today? | No, CGK is temporarily closed |
| Date | Monday, September 7, 2026 |
| Reason for closure | Volcanic ash from Mount Anak Krakatau |
| Expected closure extension | Through 6 p.m. WIB, subject to safety conditions |
| Flights affected | Thousands across Indonesia |
| Passengers affected | More than 270,000 reported |
| Other airports affected | Several airports across Java and Sumatra |
| Alternative airports | Airports in Central Java, East Java and Yogyakarta prepared |
| Airport contact centre | 138 |
Soekarno Hatta Airport Volcanic Ash
Soekarno-Hatta International Airport (CGK) is closed today, September 7, 2026, after volcanic ash from Mount Anak Krakatau disrupted aviation around Jakarta. Authorities have extended the closure to 6 p.m. local time, but flights will resume only after officials confirm that operating conditions are safe.
With thousands of flights affected and more than 270,000 passengers impacted, travellers should check directly with their airline before going to the airport. The situation remains fluid, and the reopening time could change depending on volcanic ash conditions and aviation safety assessments.
