Delhi rain snarls IGI Airport, airlines warn of delays

Persistent rain and a sudden squall over Delhi have disrupted operations at Indira Gandhi International Airport, triggering diversions, widespread delays and fresh travel advisories from major airlines for passengers flying in and out of the capital.

Heavy showers, squall and waterlogging test IGI operations

Friday’s weather over Delhi escalated quickly as heavy rain and thunderstorms swept across the city, with a squall bringing winds of up to around 76 kmph over the airport precincts. Publicly available flight-tracking data and media reports indicate that between mid-afternoon and early evening on September 4, a cluster of arrivals into Indira Gandhi International Airport (IGIA) could not land as scheduled and were rerouted to alternative airports.

Coverage from multiple outlets shows that at least nine flights were diverted within roughly one hour, with aircraft sent to Jaipur, Lucknow and Ahmedabad as visibility dropped and surface conditions deteriorated. In some tallies, the number of diversions has been placed at 11 when including additional affected services later in the afternoon.

Beyond the diversions, delays mounted rapidly. Estimates compiled from flight-tracking platforms and reported by Indian media suggest that more than 400 flights experienced disruptions through the course of the day, with knock-on effects spilling into the evening wave of departures and arrivals.

The intense downpour also created problems on the ground. Visuals shared by local outlets and social media users showed significant waterlogging on approach roads and forecourt areas outside the terminals, with passengers and airport staff navigating ankle-deep water near Terminal 3. Traffic congestion around the airport compounded the difficulties for travellers trying to reach their flights on time.

IndiGo and Air India issue advisories as delays mount

As the weather system intensified, major carriers activated their standard disruption protocols and used social media channels to caution travellers. IndiGo, India’s largest airline by market share, highlighted that adverse weather over Delhi was impacting flight schedules and urged passengers to monitor real-time updates before leaving for the airport.

The airline’s advisory, circulated on X and amplified across news reports, emphasised that travellers should check their flight status on the carrier’s website or app and allow extra time for journeys to and from IGI Airport because heavy rain was slowing road traffic in the city. The communication framed the disruption as weather-related, while noting that operations were being adjusted as conditions evolved.

Air India issued a parallel travel advisory, stating that flight operations to and from Delhi might be affected due to adverse weather conditions. Public posts from the airline directed customers to verify the latest status of their flights through official channels before heading to the terminal, a measure aimed at reducing crowding and avoiding last-minute surprises at check-in counters.

Other carriers operating substantial domestic networks, including Akasa Air and Air India Express, were also referenced in media coverage as having experienced affected flights and as encouraging passengers to remain updated through airline communication channels. The advisories collectively signalled that the disruption was not limited to a single operator but was system-wide across the hub.

IMD warnings and evolving forecast for Delhi flyers

The India Meteorological Department (IMD) had already been flagging a period of unstable weather over Delhi-NCR, and the intensity of Friday’s showers prompted a red alert for heavy rainfall in parts of the region. According to published forecasts, the city was expected to see continued thunderstorms and intermittent rain into the night, with the possibility of further spells on Saturday.

Updated bulletins later indicated that while light to moderate rain could persist, the heaviest phase of the system might ease beyond September 6, with no continued heavy-rain warning for that period. Even so, the combination of saturated ground, residual clouds and lingering showers means short-notice disruptions can still occur, especially during peak traffic hours at the airport.

The IMD has also advised that intense rain can quickly lead to waterlogging in low-lying areas and underpasses, a pattern that played out on the access roads serving IGIA. For air travellers, this raises a two-fold risk: conditions that can affect aircraft operations and separate but equally disruptive road delays en route to the terminal.

For the current spell, publicly available information suggests that airlines and airport operators are monitoring both the meteorological outlook and real-time visibility and wind data closely, adjusting runway configurations and flow rates as conditions permit in order to clear accumulated delays.

What travellers using Delhi’s IGI should expect in the short term

For passengers with flights booked into or out of Delhi over the coming day or two, the primary message from airline advisories and airport updates is to stay flexible and informed. Carriers are recommending that travellers check their flight status frequently, particularly in the hours before departure, and sign up for app or SMS alerts where available.

Given the reports of traffic snarls and partial flooding on access roads during the heaviest rainfall, allowing additional travel time to reach IGI Airport remains prudent, especially for early morning and late afternoon departures when showers and congestion can easily overlap.

Media coverage indicates that most affected flights have been subject to delays and occasional rerouting rather than outright cancellation, with airlines generally attempting to operate services once weather and runway conditions stabilise. Even so, passengers connecting through Delhi on tight schedules may face missed connections or rebooking scenarios as the system recovers from the backlog.

Travel planners note that travellers who are able to complete web check-in, travel with carry-on luggage where feasible and keep digital copies of their itineraries accessible on their phones are typically better positioned to navigate irregular operations at a busy hub like IGIA.

Recurring monsoon challenges put spotlight on infrastructure

The latest disruption has renewed scrutiny of how India’s busiest airport copes with intense monsoon bursts. In recent years, short but heavy downpours have on several occasions resulted in water accumulation in terminal forecourts and surrounding roadways, with images of flooded access points periodically circulating online.

Airport authorities have previously highlighted drainage and water-retention upgrades in response to past incidents. However, the scenes reported on September 4, with passengers wading through pooled water outside Terminal 3, have prompted fresh questions in local coverage about whether the existing systems can consistently handle sudden, high-volume rainfall typical of the changing monsoon pattern.

Industry observers point out that even small bottlenecks in apron drainage, taxiway usability or terminal access can ripple quickly across a high-density operation like IGI, where more than a thousand flight movements are scheduled on a typical day. Episodes of heavy rain, strong crosswinds or reduced visibility can force temporary runway pauses or lengthened separation between arrivals and departures, sharply reducing capacity.

While systemic monsoon-related disruption is not unique to Delhi, the combination of rapid urban runoff, high passenger volumes and the airport’s role as a central hub in India’s aviation network means that weather events such as Friday’s downpour are likely to continue drawing attention from travellers and planners alike.

Heavy rain disrupts Delhi airport operations; nine flights diverted, over 400 delayed

Delhi rains ground flights at IGIA as thunderstorms sweep capital

IMD red alert in Delhi for heavy rain; severe waterlogging at IGI Airport

Heavy rain causes waterlogging at Delhi airport; flights diverted, hundreds delayed