why did indigo cancel flights

IndiGo has been cancelling a large number of flights mainly because of a mix of new pilot work‑hours rules, crew shortages, winter fog, and internal planning issues, rather than a single one‑off problem.

What’s going on?

• India’s aviation regulator tightened Flight Duty Time Limitation (FDTL) rules to reduce pilot fatigue, increasing mandatory rest and limiting night landings.

• IndiGo misjudged how these rules would hit its dense schedule, leading to a serious pilot‑availability crunch and an internal rostering crisis.

• At the same time, heavy winter fog in north India has repeatedly disrupted operations, forcing additional cancellations and delays.

Main reasons flights were cancelled

• Stricter pilot rest rules :
  • Weekly rest hours increased and night‑time duty limits became tighter.
  • Pilots can now do fewer night landings per week, cutting scheduling flexibility.

• Pilot shortage / rostering meltdown :
  • IndiGo’s crew‑to‑aircraft ratio was not robust enough for the new rules, so it suddenly did not have enough rested pilots to operate its full timetable.

* The regulator has publicly pointed to “mismanagement and planning gaps” at the airline.

• Weather and seasonal fog :
  • Dense fog at major hubs like Delhi and other northern airports in the winter “fog window” (roughly mid‑December to early February) has caused visibility issues and cascading delays.

* On some days over a hundred IndiGo flights were cancelled with fog and “operational reasons” cited together.

• Operational and technical factors :
  • The airline has also referred to “operational constraints” and minor technical issues as contributing factors among the thousands of recent cancellations.

Recent timeline and impact

• Early December 2025:
  • New, stricter pilot duty‑time norms kick in fully, and IndiGo cancels thousands of flights in a short span, including around 1,600 in a single day according to some reports.

* On‑time performance plunges well below that of rival Indian airlines.

• Late December 2025:
  • IndiGo cancels at least 118 flights on one day, officially blaming severe fog plus operational issues at major airports.

• Late December 2025–early January 2026:
  • Cancellations and delays continue; some routes see reduced frequency or temporary suspension, with weather or “operational reasons” given depending on the day and airport.

What IndiGo and regulators say

• IndiGo has:
  • Acknowledged planning mistakes around the new FDTL rules and asked regulators for temporary exemptions on some limits (like weekly night landings).

* Announced it would proactively cut back its schedule to match available crew, warning passengers about continued disruptions into early 2026.

• The regulator has:
  • Confirmed that the cancellations stem from a combination of new rest rules, IndiGo’s planning gaps, and some technical/operational issues.

* Temporarily relaxed certain constraints (for example, allowing more night landings again) to help stabilize operations, while still prioritizing safety.

If your IndiGo flight is affected

• Check your flight status frequently on the airline’s app or website, especially during the winter fog period. Notifications can be last‑minute.

• Use IndiGo’s rebooking/refund options (often branded as “Plan B”) to move to another flight or claim a refund if your flight is cancelled.

• Build extra buffer time if you’re connecting via fog‑prone airports like Delhi between December and February.

TL;DR: IndiGo cancelled flights because tighter pilot rest rules collided with weak internal planning and limited crew reserves, and that crisis was made worse by winter fog and assorted operational/technical issues.

Information gathered from public forums or data available on the internet and portrayed here.