All flights to/from VIDP/Delhi Airport now need to get slots approved, and for international flights, you can only apply for these up to a maximum of 5 days in advance.
They’re calling these slots “Delhi Arrival Clearance Numbers” (DACN) for arrivals, and “Delhi Departure Clearance Numbers” (DDCN) for departures, and you can apply for them by emailing flight.data@gmrgroup.in and copying-in dial.aocc@gmrgroup.in.
Make sure you put your slot number in Item 18 of your FPL. If you miss your slot time by more than 30 minutes, expect to have to re-apply for a completely new slot.
Also, watch out for long stays – the maximum ground time for everything except scheduled flights is now 3 days, unless you go into a hangar.
Full details of these new rules can be found here.
More on the topic:
- More: Airport Spy: Real World Reports from Crews
- More: New NAT Doc 007: North Atlantic Changes from March 2026
- More: Guided Visuals: What They Are and Why They’re So Useful
- More: Singapore Ops Update: Two New Rules to Know Before You Go
- More: EU-LISA: The BizAv Guide
More reading:
- Latest: Airport Spy: Real World Reports from Crews
- Latest: New NAT Doc 007: North Atlantic Changes from March 2026
- Latest: Guided Visuals: What They Are and Why They’re So Useful
- Safe Airspace: Risk Database
- Weekly Ops Bulletin: Subscribe
- Membership plans: Why join OPSGROUP?









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