Anak Krakatau airports reopen: Jakarta flight recovery guide

Jakarta's Soekarno-Hatta Airport and the other airports affected by Anak Krakatau's volcanic ash are open again. Indonesia's Transport Ministry said operations were running normally through September 9, 2026. That network-wide update does not guarantee that every delayed, diverted or rebooked flight is back on schedule.

Anak Krakatau erupted again at 00:47 WIB on September 9 and remains at Alert Level III. The same ministry update said there was no ash information affecting flight operations at the time of publication, but monitoring continues.

The short answer: the affected airports are open. Check the operating airline before leaving for the terminal because an individual flight can still be delayed, cancelled or reassigned during recovery. Keep plans flexible while the volcano remains active.

Photo: Pemprov Lampung via Wikimedia Commons. The file is marked public domain in Indonesia. It shows the September 5 eruption from surrounding waters.

Status reviewed against official updates published through September 9, 2026. Airport and flight conditions can change after publication. Use the operating airline for your booking, the Indonesian Transport Ministry for airport status, and BMKG or MAGMA Indonesia for ash and volcano information.

Anak Krakatau airport status at a glance

BMKG reported negative ash paper tests at eight airports before their September 8 reopening. Its morning bulletin still tracked ash up to 7,000 feet moving south-southwest. Those two facts can coexist: a local airport test can be clear while authorities continue to monitor ash elsewhere.

Are Jakarta flights back to normal?

The Transport Ministry described flight operations as normal after the affected airports reopened. At Soekarno-Hatta, 436 departures and 439 arrivals operated on September 8. The September 9 schedule listed 722 domestic and 244 international flights, with an estimated 131,495 passengers.

For a passenger, "the airport is open" and "my flight is operating as booked" are different statements. Nearly 3,000 flights were halted during the closure. Aircraft and crews had to be repositioned, passengers had to be rebooked, and 178 aircraft at Soekarno-Hatta required airworthiness checks after exposure to ash.

Check the flight number again even if the route usually operates several times a day. A later service may run while an earlier one remains cancelled because its aircraft or crew is elsewhere.

What to verify before traveling to a Jakarta airport

Use this order so that an old airport notice does not override a newer booking update:

1. Open the operating airline's app or website and search the flight number.
2. Check the airport's departures board for the same flight and date.
3. Confirm the departure airport, terminal and new check-in deadline.
4. If an agent changed the itinerary, ask whether every connecting sector and checked bag is protected on the same booking.
5. Save the updated ticket, booking reference and airline message offline.
6. Leave extra time for queues, baggage handling and terminal changes.

An online travel agency may display the original itinerary after the airline has changed it. When the two disagree, contact the operating airline or ticket issuer before starting a long trip to the airport.

Can volcanic ash close the airports again?

Yes. A reopening means the conditions met the required operating checks at that time. It is not a promise that the airspace will stay clear.

The September 9 eruption is why a fresh check matters. The volcano remains at Level III, and the authorities continue to monitor eruptions, ash movement, airport tests and aviation notices. The ministry reported no current ash effect on flight operations in its September 9 update, but a later eruption or wind shift could change that assessment.

Do not make a decision from a screenshot without its publication time. Look for the latest notice and then verify the individual flight.

Are alternative-airport buses still operating?

Free ground transport and alternative airports were emergency measures during the closure. Now that the affected airports have reopened, do not treat an old bus destination list as a current timetable.

Use a transfer only when the airline or airport help desk confirms the departure point, destination and the flight it is meant to serve. Self-routing to another airport can break a protected itinerary and leave you responsible for a missed flight.

Is Bali airport affected by Anak Krakatau?

Bali's I Gusti Ngurah Rai Airport did not close during the Jakarta disruption. Flights connecting Bali with Jakarta were still cancelled or adjusted because the other end of the route was unavailable.

One open airport does not keep a connection intact when another airport, aircraft or crew is unavailable.

Check each sector separately:

• Bali to Jakarta or Halim
• Jakarta or Halim to the final destination
• a replacement connection through Singapore, Surabaya, Yogyakarta or another hub
• baggage transfer when tickets were bought separately

Travelers on separate tickets carry more risk because the second airline may not protect a missed connection. Do not assume that a route shown on a forum is available to your airline or fare.

Refund and rebooking options after the closure

The available remedy depends on the airline, fare, ticket issuer and whether the airline cancelled the flight. Do not cancel voluntarily until you understand what that does to the booking.

AirAsia's September 8 advisory offered eligible passengers on listed affected flights three choices: a full refund to the original payment method, credit valid for 730 days, or one free date change on the same route within 30 days, subject to seat availability. It also offered rerouting between selected Indonesian destinations within 30 days. Those terms apply to the bookings covered by that advisory, not to every airline or itinerary.

Ask your airline or ticket issuer:

1. Is the flight cancelled by the airline, or merely available for a voluntary change?
2. Can I be rerouted to the final destination without an extra fare?
3. Are all unused sectors and taxes included in the refund?
4. Will checked baggage transfer on the revised route?
5. What happens to a connection on a separate ticket?
6. Are meals, transport or accommodation provided?
7. What written evidence will my insurer require?

Keep cancellation notices, chat transcripts and receipts. A public advisory can support the conversation, but it does not prove that a particular hotel or replacement ticket will be reimbursed.

Is it safe to visit Anak Krakatau?

Anak Krakatau is in the Sunda Strait. Jakarta and Bali are outside the three-kilometre exclusion zone around the crater.

The volcano remains at Alert Level III, and the official three-kilometre exclusion zone around the active crater still applies. Do not take a sightseeing boat into that zone. Follow local port, disaster agency and tour-operator restrictions rather than assuming a trip is permitted because it is still listed online.

BMKG said it detected no sea-level anomaly in its September 8 update. That was a timestamped observation, not a permanent all-clear. Indonesia travel advice also asks visitors to monitor local warnings and take extra care around active volcanoes.

Should you change an Indonesia trip next week?

An active volcano creates uncertainty, but it does not make every Indonesia itinerary unusable. Keep the trip when the airline confirms the route and your connection has enough margin. Avoid a tight, separate-ticket transfer through Jakarta, and use flexible accommodation for the first night if a late arrival would cause a problem.

Consider changing the route when the airline offers a waiver and the trip depends on several closely timed flights through the affected area. Contact the airline before cancelling. Rechecking 48 hours before departure, again on the travel day, and before leaving for the airport is more useful than making a final decision from a week-old headline.

Flight recovery apps and offline backups

Our offline maps guide explains what navigation apps retain without a connection. The mobile boarding pass guide covers screenshots, wallet passes and barcodes that may still need a live refresh.

Mobile data during flight recovery

A working data connection helps with airline notices, revised tickets, hotel messages and maps when terminal Wi-Fi is busy. The public Roaming eSIM catalog returned 32 Indonesia plan results on September 9. Allowance, validity, start timing and other terms differ, so read the selected plan card before buying.

For a compatible unlocked phone, a Roaming eSIM can be installed before departure and kept alongside the usual SIM. Roaming eSIM support is available 24 hours a day for setup and connection help. That is useful when a disrupted route changes after normal business hours.

A data plan cannot prevent volcanic ash, reopen an airport, move a rebooked flight or guarantee coverage during congestion. It is a communication backup, not an aviation solution.

Use the Indonesia Roaming eSIM page for current country plans. A regional option only makes sense when all countries on the revised route appear on the plan card. Before travel, check when to install a Roaming eSIM, confirm the phone with the eSIM compatibility guide, and estimate usage with the travel data calculator.

Anak Krakatau flight questions

Is Soekarno-Hatta Airport open now?

Yes. Indonesia's Transport Ministry said Soekarno-Hatta was open and operating normally through September 9. Check your exact flight because recovery changes can remain after an airport reopens.

Are all Jakarta flights operating normally?

Not necessarily. The airport is open, but an individual flight can still be delayed, cancelled or reassigned while airlines reposition aircraft, crews and passengers.

Did Anak Krakatau erupt again after the airports reopened?

Yes. The Transport Ministry reported another eruption at 00:47 WIB on September 9. It said there was no ash information affecting flight operations at the time of its update.

Could Jakarta airport close again?

It could if ash or another aviation hazard affects operations. Anak Krakatau remains at Level III, so check current ministry, airport and airline notices rather than relying on the reopening date alone.

Is Bali airport open?

Yes, Bali airport remained open during this disruption. Jakarta-linked flights were affected, so an open Bali airport does not confirm that every Bali itinerary will operate.

What if my airline and airport show different statuses?

Contact the operating airline and search the flight number. The airport status describes the facility, while the airline controls the aircraft, crew and booking.

What happens to a connection through Singapore?

When every sector is on one booking, ask the operating airline whether the revised connection and baggage transfer remain protected. Separate tickets may not be protected.

Can I get a refund for a cancelled flight?

Possibly, but the exact option depends on the airline and booking. AirAsia published specific choices for eligible affected flights. Other travelers should use their own airline or ticket issuer's current disruption terms.

Should I cancel an Indonesia trip next month?

The current reopening does not justify a blanket cancellation, and the active volcano prevents a guarantee. Use flexible bookings, avoid fragile connections and reassess with current official information nearer departure.

Can tourists visit Anak Krakatau now?

Do not enter the official three-kilometre exclusion zone. Check current local restrictions before booking any boat trip because the volcano remains at Alert Level III.

What to do now

If you are flying within 24 hours, verify the flight number, departure airport and terminal now, then repeat the check before leaving. Save the revised itinerary and key contacts offline. For a later trip, keep the booking flexible and return to this page or the linked official sources for a newer status update.

This page will continue to own updates about Anak Krakatau flight disruption, airport reopening and recovery. Material changes will be added here rather than split across competing pages.