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Istanbul Airport vs Indira Gandhi International Airport
Detailed comparison of IST and DEL on FlightLogic scores and passenger experience.
Verdict
Istanbul Airport (IST) scores higher overall at 8.5/10 versus Indira Gandhi International Airport (DEL) at 7.8/10.
Istanbul Airport (IST) scores 8.5/10 (Excellent)
on FlightLogic's airport index — combining on-time performance (8.3),
passenger experience (8.4), and facilities (8.8).
Lounge quality rates 9.0/10. See full airport guide →
In short
Istanbul Airport (IST) is Turkish Airlines' mega-hub, rated 8.5/10 on FlightLogic. The 2019 single-terminal design handles 76M+ passengers with one of the world's largest business lounges. Ideal for Europe-Asia-Africa connections on Turkish Airlines. Allow 90+ minutes for connections.
FlightLogic Score8.5Excellent
On-time8.3Departure reliability
Experience8.4Staff, queues, cleanliness
Facilities8.8Food, shops, seating
Lounges9.0Lounge quality
Rating basisEditorialFlightLogic methodology
Score breakdown
Modelled on industry airport indices — on-time data, facilities ratings, and editorial experience signals combined into a single FlightLogic score.
On-Time Performance
8.3
Passenger Experience
8.4
Facilities & Comfort
8.8
Lounge score9.0/10
Highlights
Single mega-terminal opened 2019 — one of the world's largest airport buildings under one roof
Turkish Airlines Business Lounge: 60,000+ sqm with cinema, golf simulator, museum, and extensive dining
130+ country connections via Turkish Airlines — one of the world's most connected hubs by country count
Istanbul scores 8.5/10 on FlightLogic with strong facilities (8.8/10) — lounge score 9.0/10
Overview
Massive new hub designed for Turkish Airlines with impressive lounges and growing route network.
Turkish Airlines lounge and terminal
The Turkish Airlines Business Lounge at IST spans over 60,000 square metres — one of the largest in the world — with multiple dining areas, a cinema, golf simulator, museum section, and prayer rooms. Business class and Star Alliance Gold passengers on Turkish Airlines access it free.
The single-terminal design means all connections are airside without inter-terminal transfers, but the terminal is vast — allow generous connection times of 90+ minutes for international-to-international connections.
Istanbul as a connection hub
Turkish Airlines flies to more countries than any other airline, making IST ideal for reaching secondary cities in Africa, Central Asia, and the Balkans that lack direct flights from Western Europe.
Compare IST against DOH (Qatar) and DXB (Emirates) for similar Europe-Asia routings — Turkish often wins on fare price; Gulf carriers win on premium product consistency.
Indira Gandhi International Airport (DEL) scores 7.8/10 (Very Good)
on FlightLogic's airport index — combining on-time performance (7.5),
passenger experience (7.7), and facilities (8.2).
Lounge quality rates 8.0/10. See full airport guide →
In short
Delhi DEL scores 7.8/10 — India's #1 airport and UK–North India hub. T3 international. Metro to city ~20 min. See /guides/uk-india-flights-guide-2026 and /guides/delhi-airport-lounge-guide-2026.
FlightLogic Score7.8Very Good
On-time7.5Departure reliability
Experience7.7Staff, queues, cleanliness
Facilities8.2Food, shops, seating
Lounges8.0Lounge quality
Rating basisEditorialFlightLogic methodology
Score breakdown
Modelled on industry airport indices — on-time data, facilities ratings, and editorial experience signals combined into a single FlightLogic score.
On-Time Performance
7.5
Passenger Experience
7.7
Facilities & Comfort
8.2
Lounge score8.0/10
Highlights
Primary UK–North India gateway — direct BA, Air India, Virgin Atlantic from Heathrow
T3 international hub — Plaza Premium, Air India Maharaja, and Star Alliance lounges
Metro Airport Express to New Delhi ~20 min — fastest city link
UK–India VFR traffic peaks Dec–Jan and Jun–Aug — book early
Overview
India's busiest airport and primary UK–India gateway — Air India, BA, Virgin Atlantic direct plus one-stop via Gulf hubs on Emirates, Qatar, and Etihad.
UK routing options
Direct: BA, Air India, Virgin Atlantic from LHR (11–12 hrs). One-stop: Emirates (DXB), Qatar (DOH), Etihad (AUH) often price lower in business class.
Compare DEL vs Mumbai (/airports/mumbai) for your destination state — DEL for North India, BOM for West/South.
FAQ
Which is better, Istanbul Airport or Indira Gandhi International Airport?
Istanbul Airport (IST) scores higher overall at 8.5/10 versus Indira Gandhi International Airport (DEL) at 7.8/10.
Which has better lounges, IST or DEL?
Istanbul Airport (IST) scores higher for lounges at 9.0/10, versus Indira Gandhi International Airport at 8.0/10.
Which airport is more on-time, IST or DEL?
Istanbul Airport (IST) has stronger on-time performance at 8.3/10 versus Indira Gandhi International Airport (DEL) at 7.5/10.
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