- Mount Lewotobi Laki-laki sits on Flores island, about 800km east of Bali, not on Bali itself.
- As of 24 July 2026, Indonesia’s PVMBG keeps it at Alert Level III (Siaga), with small ash bursts but no reported mass Denpasar cancellations in recent weeks.
- Past ash episodes have grounded 24 to 90 Denpasar flights in a single day: November 2024, June 2025, and July 2025.
- Disruption comes from drifting ash on shifting winds, not proximity – airlines cancel as an engine-safety precaution.
- Always check your specific flight with your airline directly before heading to the airport.
Why a volcano on Flores disrupts flights on Bali
Mount Lewotobi Laki-laki sits on Flores island in East Nusa Tenggara, roughly 800km east of Bali. The two islands aren’t close, and an eruption doesn’t put Bali’s beaches or hotels in any danger.
The problem is what happens above the ground. When the volcano erupts, prevailing winds can carry its ash plume west across the flight corridors that serve Denpasar’s Ngurah Rai airport, even on a day when Bali’s own skies look clear.
Airlines don’t take chances with volcanic ash. Fine glass and rock particles can melt inside a jet engine’s hot core, then re-solidify on internal parts and damage them, so carriers cancel or reroute the moment ash is forecast anywhere near a flight path.
That’s a standard, zero-tolerance aviation safety rule everywhere in the world, not a sign that Bali is unsafe to visit. You can read more on how ash affects aircraft from SKYbrary’s aviation safety explainer.
The pattern: three major disruption episodes since late 2023
Mount Lewotobi Laki-laki has been intermittently active since late 2023.
At least three episodes have caused real, large-scale disruption at Denpasar, each with dozens to 90 flights cancelled in a single day. Smaller flare-ups have also cancelled fewer flights at a time, including 16 international flights in March 2025.
Notice the shape of that pattern. Each major episode has come with days, not weeks, of real disruption, followed by a return to normal Denpasar operations once the ash cleared.
There’s no dependable early-warning window for travelers. An eruption and the resulting flight cancellations can both happen within the same afternoon.
What’s the status right now, as of 24 July 2026?
Mount Lewotobi Laki-laki remains at Alert Level III (Siaga), the second-highest of Indonesia’s four volcano alert levels. Indonesia’s geological agency (PVMBG) has kept it there since raising it on 12 May 2026 after a rise in seismicity.
The volcano is still erupting on most days, but at a much smaller scale than the 2024–2025 episodes. Ash columns through July 2026 have generally ranged from around 500 to 1,600 metres above the summit, including a 1,600-metre eruption on the morning of 24 July.
PVMBG’s standing recommendation is a 5km exclusion zone around the crater for residents and hikers on Flores. That zone doesn’t reach Bali, and it has no bearing on your hotel or beach plans.
Denpasar’s Ngurah Rai airport has not reported the kind of mass cancellations seen in the three episodes above so far in July 2026. That can change quickly if activity picks up, which is exactly why it’s worth checking status close to your travel date rather than relying on this article alone.
This ladder measures how likely an eruption is and the danger to people on the ground near the volcano.
Whether ash actually reaches Bali’s flight paths depends on which way the wind is blowing on the day, so a Level III volcano can coincide with anything from no disruption at all to cancelled flights.
How to protect your Bali trip
You can’t predict the volcano, but you can reduce the disruption it causes to your plans.
- Check your specific flight directly with your airline in the 24 hours before departure, not just general news headlines.
- Turn on airline app notifications so you hear about a cancellation the moment it’s issued, not at the airport.
- Book a flexible fare or travel insurance that explicitly covers natural-disaster or volcanic-eruption disruption, and read the fine print before you buy.
- Build in a buffer day either side of your trip if your dates are fixed, especially around a connecting flight home.
- Compare flexible-cancellation hotel rates so a delayed arrival or early departure doesn’t cost you a night you can’t get back.
Search current fares on flights to Bali and compare places to stay on Bali hotels before you lock in non-refundable plans.
Frequently Asked Questions
Is Mount Lewotobi erupting right now, and will it affect my Bali flight?
Mount Lewotobi Laki-laki is still erupting most days as of 24 July 2026, but at a small scale, with ash columns generally ranging from 500 to 1,600 metres, including a 1,600-metre eruption on the morning of 24 July. There’s no mass disruption to Denpasar flights reported in recent weeks, though that can change if activity intensifies.
Why does a volcano on Flores affect flights to Bali?
Mount Lewotobi is about 800km from Bali, but its ash plume can drift on prevailing winds into the flight corridors serving Denpasar’s airport. Airlines cancel or reroute as a precaution against engine damage, regardless of how far the volcano itself is from Bali’s coastline.
How often has this happened before?
Mount Lewotobi has caused three major Bali flight-disruption episodes since late 2023: November 2024, June 2025, and July 2025, each cancelling dozens to 90 Denpasar flights in a single day. Smaller flare-ups, such as a 16-flight cancellation in March 2025, have also occurred. Operations have returned to normal within days each time.
How do I check if my specific flight is affected?
Check your booking directly on your airline’s app or website in the day before departure, since that’s the fastest place a cancellation appears. Airport-wide status pages and news coverage can lag behind an individual flight’s real status by hours.
What are my options if my flight is cancelled or delayed by volcanic ash?
Airlines typically offer a free rebooking, a refund, or rerouting when they cancel for volcanic ash, since it’s outside your control. Ask your airline about all three options rather than assuming only one is on the table, and keep any hotel or tour bookings flexible until you know your new schedule.
Is it safe to travel to Bali right now?
Yes, Bali itself remains open and welcoming visitors as of 24 July 2026, with no ground-level danger from a volcano some 800km away on another island. The risk to plan around is flight disruption, not personal safety on the island.
Sources
- ANTARA News — Bandara Bali: 90 penerbangan batal dalam sehari dampak erupsi (13 Nov 2024)
- CNN — Mount Lewotobi Laki Laki volcano erupts, killing at least 10 people (3 Nov 2024)
- ANTARA News — Bandara Bali catat 87 penerbangan sehari batal imbas erupsi Lewotobi (18 Jun 2025)
- CNN — Indonesia volcano spews ash more than 6 miles into sky, dozens of Bali flights cancelled (18 Jun 2025)
- Jakarta Globe — Flights Canceled at Bali Airport After Mount Lewotobi Eruption Disrupts Travel (7 Jul 2025)
- ANTARA News Jawa Timur — Erupsi Gunung Lewotobi masih berlangsung, lontarkan abu 1,4 km (7 Jul 2026)
- Okezone News — Gunung Lewotobi Laki-Laki meletus pagi ini, luncurkan abu vulkanik 1.600 meter (20 Jul 2026)
- Okezone News — Gunung Lewotobi Laki-Laki kembali erupsi, muntahkan abu vulkanik hingga 1.600 meter (24 Jul 2026)
- Kompas Regional — Status Gunung Lewotobi Laki-laki naik ke level Siaga, warga diminta jauhi radius 5 km (12 May 2026)
- ANTARA News — Bandara Ngurah Rai: Total 16 penerbangan batal akibat erupsi (21 Mar 2025)
- NASA Earth Observatory — Towering Plume From Mount Lewotobi Laki-Laki (8 Jul 2025)
- SKYbrary Aviation Safety — Volcanic Ash
Disclaimer: We’ve worked hard to make sure the information in this article is as accurate and up to date as possible at the time of publishing. Travel details such as prices, schedules, visa rules, and entry requirements can change at short notice, so it remains your responsibility to verify the current details with official sources before you book or travel. Wego accepts no liability for any loss or inconvenience arising from the use of this content.
