Delhi rains snarl IGI flights; IndiGo, Air India issue alerts

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Persistent heavy rain over Delhi on September 4 and 5 has disrupted flight operations at Indira Gandhi International Airport, prompting airlines including IndiGo and Air India to issue travel advisories as waterlogging and reduced visibility cause delays and diversions.

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Delhi rains snarl IGI flights; IndiGo, Air India issue alerts

Weather chaos hits India’s busiest airport

Intense showers and thunderstorms over Delhi-NCR on Friday and Saturday triggered waterlogging on key stretches around Indira Gandhi International (IGI) Airport and in parts of the airside, affecting aircraft movement and access roads. Published coverage indicates that between 3:30 pm and 4:30 pm on September 4, multiple flights were diverted from Delhi, with several routed to Jaipur, Lucknow and Ahmedabad after conditions deteriorated rapidly.([indiatoday.in](https://www.indiatoday.in/science/story/rain-lashes-delhi-ncr-thunderstorms-darken-skies-imd-issues-red-alert-2987032-2026-09-04?utm_source=openai))

Reports from Indian media describe standing water at sections of the airport and on approach roads, contributing to longer travel times for passengers attempting to reach terminals. The India Meteorological Department (IMD) issued a red alert on Friday for heavy rain, thunderstorms and gusty winds across the capital, with monitoring stations such as Palam and Najafgarh recording significant rainfall during peak travel hours.([economictimes.indiatimes.com](https://economictimes.indiatimes.com/industry/transportation/airlines-/-aviation/delhi-weather-igi-airport-witnesses-waterlogging-indigo-issues-travel-advisory-amid-imds-issues-red-alert/articleshow/133760596.cms?from=mdr&utm_source=openai))

By Saturday morning, showers persisted over the city, leading to fresh congestion at IGI as aircraft awaited departure slots and arriving flights faced sequencing delays. While core runway operations continued, airport bulletins and airline statements pointed to an uneven operating picture, with some flights running close to schedule and others experiencing extended ground holds.

The disruption comes at a time when IGI, India’s busiest gateway, typically handles more than 1,500 flight movements a day in the late summer travel window, leaving limited slack in the system when weather reduces available capacity. Previous episodes of intense monsoon rain have produced similar ripple effects for domestic and international networks using Delhi as a hub.([aai.aero](https://www.aai.aero/sites/default/files/pr_articles_clippings/Press%20Clippings%2008-11-2025.pdf?utm_source=openai))

IndiGo urges flyers to check status and allow extra time

IndiGo, which operates the largest share of domestic capacity through Delhi, issued a travel advisory on Saturday warning that bad weather in the capital could lead to delays in flight operations. The airline used its social media channels to advise customers flying to or from IGI to check real-time status on its website or mobile app before leaving for the airport.([moneycontrol.com](https://www.moneycontrol.com/city/indigo-warns-of-flight-delays-as-heavy-rain-batters-delhi-ncr-imd-issues-orange-alert-article-14023270.html?utm_source=openai))

Publicly available information shows that IndiGo’s advisory emphasized close monitoring of conditions and recommended that travelers build in additional buffer time for their journey to the airport, citing slower road traffic due to waterlogging in several neighborhoods. The guidance aligned with earlier notices the carrier has issued during previous bouts of severe weather over Delhi, when surface congestion compounded airside delays.([news.webindia123.com](https://news.webindia123.com/news/Articles/India/20260905/4494953.html?utm_source=openai))

Coverage from city-focused outlets indicates that water accumulation and traffic bottlenecks developed near the airport precincts, including around key junctions that feed Terminal 3. In these circumstances, even passengers holding on-time departure slots risk missing check-in or boarding cut-offs if they do not account for extended road travel times.([moneycontrol.com](https://www.moneycontrol.com/city/indigo-warns-of-flight-delays-as-heavy-rain-batters-delhi-ncr-imd-issues-orange-alert-article-14023270.html?utm_source=openai))

Industry observers note that IndiGo’s proactive messaging reflects a wider trend among Indian carriers to push digital self-service tools during disruption, directing passengers toward apps and websites to re-check timings, manage bookings or seek alternative connections instead of relying solely on airport counters.

Air India highlights potential disruption amid changing forecasts

Flag carrier Air India also issued a passenger advisory in response to the deteriorating conditions over Delhi, cautioning that operations to and from IGI could be affected as the weather system evolved. Regional news reports state that the airline flagged the possibility of delays and urged customers to stay updated on their flight details through official channels.([economictimes.indiatimes.com](https://economictimes.indiatimes.com/industry/transportation/airlines-/-aviation/delhi-weather-igi-airport-witnesses-waterlogging-indigo-issues-travel-advisory-amid-imds-issues-red-alert/articleshow/133760596.cms?utm_source=openai))

The alerts followed a sequence of heavy showers that began on Friday afternoon and extended into Saturday morning, catching some late-evening arrivals and early-morning departures within the same disruption window. According to published coverage, Air India’s messaging was part of a broader pattern that also saw other carriers, including Akasa Air and SpiceJet, draw attention to potential schedule changes as conditions remained unstable.([economictimes.indiatimes.com](https://economictimes.indiatimes.com/industry/transportation/airlines-/-aviation/delhi-weather-igi-airport-witnesses-waterlogging-indigo-issues-travel-advisory-amid-imds-issues-red-alert/articleshow/133760596.cms?utm_source=openai))

For Air India, Delhi is a critical hub for both its narrowbody domestic network and an expanding roster of long-haul services. Any sustained weather-related constraints can complicate aircraft rotations, especially for widebody flights that operate on tight turnaround schedules and connect to onward departures in Europe, North America and East Asia.

Travel analysts point out that when prolonged thunderstorms or low visibility reduce runway acceptance rates, airlines are often forced to prioritize certain sectors, adjust crew rosters and reroute aircraft, outcomes that can lead to rolling delays even after the worst of the weather has cleared.

IMD red alert and waterlogging amplify disruption risks

The IMD red alert for Delhi on Friday signaled a high likelihood of intense rainfall and thunderstorms over short durations, conditions that typically strain urban drainage and impact operations at major infrastructure nodes such as airports. Economic and broadcast media accounts highlight that IGI experienced visible waterlogging after sharp downpours, while other parts of the city, including central business districts and residential corridors, reported similar flooding.([economictimes.indiatimes.com](https://economictimes.indiatimes.com/industry/transportation/airlines-/-aviation/delhi-weather-igi-airport-witnesses-waterlogging-indigo-issues-travel-advisory-amid-imds-issues-red-alert/articleshow/133760596.cms?from=mdr&utm_source=openai))

Reports indicate that as rain bands passed over the airfield, strong gusts and shifting wind directions increased the complexity of managing arrivals and departures. In some instances, aircraft were held in airborne stacks while ground crews worked around pooling water and reduced visibility on aprons and taxiways.([indiatoday.in](https://www.indiatoday.in/science/story/rain-lashes-delhi-ncr-thunderstorms-darken-skies-imd-issues-red-alert-2987032-2026-09-04?utm_source=openai))

India’s capital has faced repeated scrutiny over monsoon resilience, with localized flooding frequently disrupting road and rail transport. Aviation commentators note that even relatively short bursts of intense rainfall can have outsized effects on airport performance when drainage systems are temporarily overwhelmed, particularly during peak travel windows.

The current spell has also arrived against the backdrop of wider seasonal variability, with forecasters closely tracking rainfall totals and their implications for everything from agriculture to urban infrastructure loading. For air travelers, the immediate impact is felt most clearly in longer queues, altered flight timings and the heightened risk of missed connections.

What travelers through Delhi should do now

For passengers booked to travel via IGI over the coming days, publicly available advisories from airlines and the airport point to a clear set of priorities. Travelers are being encouraged to monitor their flight status frequently through official apps or websites, rather than relying solely on the original schedule printed on tickets or email confirmations.([economictimes.indiatimes.com](https://economictimes.indiatimes.com/industry/transportation/airlines-/-aviation/delhi-weather-igi-airport-witnesses-waterlogging-indigo-issues-travel-advisory-amid-imds-issues-red-alert/articleshow/133760596.cms?from=mdr&utm_source=openai))

Given reports of waterlogging and slower surface traffic, passengers are being advised to allow more time than usual to reach the airport, especially during periods of moderate to heavy rain. Leaving earlier can help absorb unexpected congestion on arterial routes and at terminal entry points, reducing the risk of missed check-in or baggage-drop deadlines even if flights are running later than planned.

Travel planners also suggest that those with tight onward connections build in additional buffers, consider travel insurance that covers weather-related disruption, and keep boarding passes, identity documents and any required visas easily accessible in case last-minute gate changes or re-screening are required.

With IMD forecasts pointing to the possibility of further showers over parts of Delhi, airlines and airport operators are likely to continue updating their guidance. Passengers scheduled to transit the capital in the near term may benefit from checking for fresh advisories on the morning of travel and again a few hours before departure.