Typhoons and Monsoon Storms Cause Over 4,700 Flight Disruptions Across Asia in August 2026

What happened

Operational data showed 4,501 delays and 210 cancellations recorded in a single day around 20 August 2026 at airports including Shanghai, Delhi and Jakarta, as monsoon storms and a succession of named typhoons disrupted flight operations across major Asian aviation hubs through July and August.

Three named typhoons drove much of the disruption. In early July, [AirAsia](/entities/5c0dd3a8a9935c719aa5202a068d0fcc) issued a travel advisory warning that flights to and from selected East Asian destinations could be affected between 10 and 12 July as Typhoon Bavi tracked through the East China Sea. Later in July, Typhoon Noul disrupted operations around the Pearl River Delta: on 26 July, [Singapore Airlines](/entities/8075fbcd0b665960958e9ddaa1b261fc) cancelled flights serving Shenzhen and selected services from Hong Kong, directing passengers to its flight status pages as the storm's wind field shifted. In early August, Typhoon White Dolphin prompted responses from Taiwanese aviation authorities.

Monsoon conditions compounded the disruption across South and Southeast Asia. Indian meteorological briefings for mid to late August described an active southwest monsoon spell affecting eastern, central, northwestern and parts of southern India, with particularly heavy rainfall over Odisha and dense cloud bands stretching from eastern Uttar Pradesh through Bihar to the Bay of Bengal. These conditions reduced runway throughput at airports in Delhi, Kolkata and smaller regional hubs. [Cebu Pacific](/entities/74f1310676095763879b080807d23b9b) implemented temporary network adjustments and route suspensions on international services during the northern summer season, and Sydney Airport's local slot coordinator reported a 4 percent cancellation rate for allocated slots in the northern summer period.

How it unfolded

Industry impact & what to watch

This episode illustrates how seasonal storm systems can layer on top of one another across a region, with successive typhoons and an active monsoon spell straining schedules at hubs that are not directly connected by route but share the same weather system moving through the calendar.

Schedule resilience during this period depends on how airlines sequence rebooking and slot adjustments once a named storm is tracked: advisories go out days ahead of landfall, cancellations follow as wind fields shift, and knock-on delays spread to airports the storm never directly crosses because aircraft and crew rotations are disrupted upstream. Sydney Airport's reported 4 percent cancellation rate for allocated northern-summer slots shows the effect reaching gateways well outside the storm tracks themselves.

Whether disruption levels ease will depend on how the remainder of the southwest monsoon season behaves over South and Southeast Asia and whether further named typhoons form in the East China Sea or Pearl River Delta approaches before the northern summer season ends.