This page compiles publicly available airspace and route information. It does not constitute operational advice. Passengers should consult their airline; operators should refer to official NOTAMs, EASA SIBs, and FAA advisories for current data.
Flying to Delhi
Indira Gandhi International Airport (DEL / VIDP) · Last reviewed: April 2026
Airport Overview
Indira Gandhi International Airport (IATA: DEL, ICAO: VIDP) is India's primary international gateway and one of the busiest airports in Asia, according to AAI (Airports Authority of India) and IATA published data. Located approximately 16 km southwest of central Delhi, the airport operates within the Delhi FIR (VIDF).
According to AAI statistics, DEL handled over 72 million passengers in 2025, making it South Asia's largest airport by traffic volume. The airport operates three runways (09/27, 10/28, and 11/29) in a near-parallel configuration. Terminal 3 handles the majority of international flights. Air India, IndiGo, and Vistara maintain significant operations at DEL. Published expansion plans document a fourth runway and additional terminal capacity under development.
DEL's geographic position in northern India places it near the convergence of the Delhi and Lahore FIRs. The proximity of Pakistani airspace (OPLR Lahore FIR) to the west and northwest is a factor in routing for flights arriving from Europe and the Middle East, particularly given documented restrictions on certain carriers' use of Pakistani airspace.
Common Routes & FIRs Crossed
Delhi's position in northern India creates distinct routing patterns depending on direction of origin. According to Eurocontrol and published airline data:
From Europe (northern corridor): The most direct routing crosses Turkish (LTAA), Iranian (OIIX), and Pakistani (OPLR Lahore) FIRs before entering VIDF from the northwest. According to published NOTAM data, Pakistani airspace restrictions have periodically affected this corridor, requiring some operators to reroute via more southerly paths through the Gulf and the Mumbai FIR (VABF) before turning north to Delhi.
From Europe (southern corridor): When the northern corridor is restricted, flights route via Gulf FIRs (OMAE, OOMM) and approach Delhi from the southwest through VABF. According to Eurocontrol data, this routing adds approximately 60-120 minutes of flight time compared to the direct northern path.
From East and Southeast Asia: Flights enter VIDF from the east, crossing Kolkata FIR (VECF) or directly from Myanmar/Thai airspace. These routings are generally unaffected by the western corridor restrictions.
According to IATA route analysis, the Pakistan airspace situation has been the most significant routing factor for Europe-Delhi flights. Operators evaluate the status of OPLR (Lahore) and OPKR (Karachi) FIRs on an ongoing basis, and routing decisions vary by carrier and bilateral overflight agreements.
Airspace Conditions
The VIDF FIR is not subject to EASA or FAA airspace restrictions, according to published advisory databases. AAI maintains comprehensive radar and communication infrastructure across the Delhi FIR. According to ICAO assessments, India's northern airspace operates with modern ATC systems including ADS-B surveillance.
The Delhi FIR's western boundary adjoins Pakistani airspace. According to published NOTAM databases and ICAO documentation, the status of cross-border air corridors between India and Pakistan has varied over time in response to bilateral relations. This affects the availability of the most direct routing for flights arriving from or departing toward Europe and the Middle East.
According to ICAO and published incident databases, the Delhi terminal area has experienced documented complexity due to high traffic volumes on parallel runways and dense airspace around the national capital. DGCA (Directorate General of Civil Aviation) has implemented enhanced separation procedures and published safety recommendations following documented incidents including TCAS alerts during parallel approaches, as covered in ICAO regional safety reports.
Seasonal fog affects DEL operations during winter months (December-February). According to AAI published data, low-visibility procedures (CAT IIIB ILS) are available on primary runways, but fog-related delays and diversions are documented annually during peak winter weeks.
What to Check Before Booking
Current status of Pakistan FIRs (OPLR, OPKR) for flights from Europe and the Middle East
Airline routing information for your specific origin to understand flight time and corridor used
Winter fog season timing (December-February) and airline policies for fog-related delays at DEL
NOTAMs for the VIDF FIR and en-route FIRs along expected routing
Travel insurance coverage for delay-related expenses during winter operations
Related
FlySafe compiles publicly available airspace, route, and airport data for informational purposes only. This page does not constitute flight safety advice, risk assessment, or an operational recommendation.
Airline operators must consult official NOTAMs, EASA SIBs, FAA advisories, and their own risk assessment processes. Passengers should contact their airline for current service status. Data sources include ICAO, EASA, FAA, Eurocontrol, and published airline schedules.