Weather disruption forces Delhi flight diversions
Heavy rain and thunderstorms disrupted operations at Delhi’s Indira Gandhi International Airport on Monday, forcing at least 15 arriving flights to divert and causing hundreds of delays and more than two dozen cancellations as unstable weather swept across the capital.
Twelve of the diverted aircraft were sent to Jaipur, two to Chandigarh and one to Lucknow after conditions around Delhi deteriorated. International services were among the affected flights, while several aircraft approaching the airport were forced to abandon landings or alter their arrival plans as thunderstorms reduced the operational window available to pilots and air traffic controllers.
The disruption spread rapidly through the airport’s tightly packed schedule. More than 280 flights were delayed during the day and at least 20 were cancelled, with later data putting cancellations at 26. Delhi airport normally handles more than 1,300 aircraft movements daily, making weather-related interruptions capable of producing cascading delays well beyond the capital as aircraft and crews fall out of their planned rotations.
Airlines warned passengers that departures and arrivals could continue to be affected and advised travellers to verify flight status before leaving for the airport. IndiGo said schedules had been disrupted by the weather, while Air India cautioned that services operating to and from Delhi could be affected. SpiceJet also issued passenger guidance as rainfall complicated both airport operations and journeys to the terminals.
Thunderstorms, lightning and gusty winds of around 30 to 40 kmph accompanied the rain across parts of Delhi. Weather authorities issued a red alert for heavy rainfall for parts of the city during the intense spell, increasing the likelihood of temporary restrictions on flight movements when visibility, wind direction or runway conditions moved outside safe operating limits.
Rainfall varied sharply across the capital. Chhatarpur recorded 28 mm between 8.30 am and 11.30 am, while Lodi Road received 24.6 mm. Pitampura recorded 18.5 mm during the same period, with considerably lower totals at the Ridge, Mayur Vihar, Safdarjung and Ayanagar, reflecting the localised intensity typical of monsoon thunderstorms.
The aviation disruption came alongside widespread problems on Delhi’s roads. Waterlogging was reported at several locations, while traffic slowed on important routes connecting residential and commercial districts with the airport. Gurgaon and other parts of the National Capital Region were also affected, adding another layer of uncertainty for passengers attempting to reach terminals for scheduled departures.
Weather diversions are used when pilots and air traffic controllers determine that conditions at the intended airport may prevent a safe landing within operational or fuel limits. Aircraft may be placed in holding patterns while crews wait for conditions to improve, but prolonged thunderstorms can force flights towards designated alternate airports. Jaipur is frequently used as an alternative for Delhi-bound services because of its proximity and airport infrastructure.
Heavy rain alone does not necessarily halt modern airline operations, but thunderstorms present more complex hazards. Strong winds, lightning, rapidly changing visibility and wind shear can affect approaches and departures, while standing water can alter braking performance on runways. Airport capacity can therefore decline even when individual flights remain technically capable of operating, creating queues that ripple through arrival and departure schedules.
Monday’s disruptions underline Delhi airport’s exposure to seasonal weather at a time when passenger and aircraft volumes leave limited room for recovering schedules after prolonged interruptions. Flight delays can continue even after conditions improve because aircraft diverted elsewhere must refuel and reposition, crews can approach regulatory duty limits, and subsequent departures may be waiting for aircraft that have not yet arrived.
Twelve of the diverted aircraft were sent to Jaipur, two to Chandigarh and one to Lucknow after conditions around Delhi deteriorated. International services were among the affected flights, while several aircraft approaching the airport were forced to abandon landings or alter their arrival plans as thunderstorms reduced the operational window available to pilots and air traffic controllers.
The disruption spread rapidly through the airport’s tightly packed schedule. More than 280 flights were delayed during the day and at least 20 were cancelled, with later data putting cancellations at 26. Delhi airport normally handles more than 1,300 aircraft movements daily, making weather-related interruptions capable of producing cascading delays well beyond the capital as aircraft and crews fall out of their planned rotations.
Airlines warned passengers that departures and arrivals could continue to be affected and advised travellers to verify flight status before leaving for the airport. IndiGo said schedules had been disrupted by the weather, while Air India cautioned that services operating to and from Delhi could be affected. SpiceJet also issued passenger guidance as rainfall complicated both airport operations and journeys to the terminals.
Thunderstorms, lightning and gusty winds of around 30 to 40 kmph accompanied the rain across parts of Delhi. Weather authorities issued a red alert for heavy rainfall for parts of the city during the intense spell, increasing the likelihood of temporary restrictions on flight movements when visibility, wind direction or runway conditions moved outside safe operating limits.
Rainfall varied sharply across the capital. Chhatarpur recorded 28 mm between 8.30 am and 11.30 am, while Lodi Road received 24.6 mm. Pitampura recorded 18.5 mm during the same period, with considerably lower totals at the Ridge, Mayur Vihar, Safdarjung and Ayanagar, reflecting the localised intensity typical of monsoon thunderstorms.
The aviation disruption came alongside widespread problems on Delhi’s roads. Waterlogging was reported at several locations, while traffic slowed on important routes connecting residential and commercial districts with the airport. Gurgaon and other parts of the National Capital Region were also affected, adding another layer of uncertainty for passengers attempting to reach terminals for scheduled departures.
Weather diversions are used when pilots and air traffic controllers determine that conditions at the intended airport may prevent a safe landing within operational or fuel limits. Aircraft may be placed in holding patterns while crews wait for conditions to improve, but prolonged thunderstorms can force flights towards designated alternate airports. Jaipur is frequently used as an alternative for Delhi-bound services because of its proximity and airport infrastructure.
Heavy rain alone does not necessarily halt modern airline operations, but thunderstorms present more complex hazards. Strong winds, lightning, rapidly changing visibility and wind shear can affect approaches and departures, while standing water can alter braking performance on runways. Airport capacity can therefore decline even when individual flights remain technically capable of operating, creating queues that ripple through arrival and departure schedules.
Monday’s disruptions underline Delhi airport’s exposure to seasonal weather at a time when passenger and aircraft volumes leave limited room for recovering schedules after prolonged interruptions. Flight delays can continue even after conditions improve because aircraft diverted elsewhere must refuel and reposition, crews can approach regulatory duty limits, and subsequent departures may be waiting for aircraft that have not yet arrived.