Istanbul Airport (IST) tracks 8 destinations, all of them international and all but one carrying a verified historical direct-service record: Islamabad, Karachi, Lahore, Delhi, Mumbai, Kathmandu and Dhaka all show verified service, largely on Turkish Airlines. Only Colombo has no record in this dataset.
A 7-of-8 verified rate is the highest in this comparison set, and it reflects Turkish Airlines' historical role as a genuine bridge between Istanbul and South Asia rather than a coincidence of the sample: the airline appears on every one of the seven verified routes, alone on five of them and alongside a local flag carrier, Air India, on Delhi and Mumbai. The lone gap, Colombo at 6,294 km, is exactly the kind of route where an agent should default to checking live GDS availability rather than assuming the absence of a 2014-vintage historical record means no current service exists.
All 8 of Istanbul's tracked connections are international, split 5 medium-haul, 4.6 to 5.7 hours, all to Pakistan and India, and 3 long-haul, 6.2 to 7.4 hours, to Nepal, Bangladesh and Sri Lanka. Seven of the eight carry verified service.
| Destination | Country | Distance | Flight Time | Haul | Verified Service |
|---|---|---|---|---|---|
Islamabad ISB |
Pakistan | 3,942 km / 2,450 mi | ≈ 4.6h | Medium-haul | ✓ 1 carrier |
Karachi KHI |
Pakistan | 3,971 km / 2,467 mi | ≈ 4.7h | Medium-haul | ✓ 1 carrier |
Lahore LHE |
Pakistan | 4,176 km / 2,595 mi | ≈ 4.9h | Medium-haul | ✓ 1 carrier |
Delhi DEL |
India | 4,565 km / 2,837 mi | ≈ 5.4h | Medium-haul | ✓ 2 carriers |
Mumbai BOM |
India | 4,834 km / 3,004 mi | ≈ 5.7h | Medium-haul | ✓ 2 carriers |
Kathmandu KTM |
Nepal | 5,305 km / 3,297 mi | ≈ 6.2h | Long-haul | ✓ 1 carrier |
Dhaka DAC |
Bangladesh | 5,962 km / 3,705 mi | ≈ 7.0h | Long-haul | ✓ 1 carrier |
Colombo CMB |
Sri Lanka | 6,294 km / 3,911 mi | ≈ 7.4h | Long-haul | — no record |
Seven of Istanbul's eight tracked connections carry a verified historical operating record, almost all on Turkish Airlines — only the Colombo route, the longest in this set at 6,294 km, has no verified record here.
OpenFlights' historical route dataset records 2 carriers operating this city pair, flying Airbus A330. It's the best-served pair in Istanbul's whole tracked network — still confirm current-day operation and schedule in your GDS before quoting, since this dataset reflects historical service, not a live timetable.
AI Air India LimitedTK Turkish Airlines2 carriers on record, flying Airbus A330, Boeing 777-300ER. Fewer options than Istanbul's top pair, but still a genuine verified connection rather than a theoretical one.
AI Air India LimitedTK Turkish Airlines1 carrier on record, flying Boeing 737-800. Fewer options than Istanbul's top pair, but still a genuine verified connection rather than a theoretical one.
TK Turkish Airlines1 carrier on record, flying Boeing 737-800. Fewer options than Istanbul's top pair, but still a genuine verified connection rather than a theoretical one.
TK Turkish AirlinesIST is a straightforward origin code to work with across GDS platforms since most of its tracked routes are single-carrier: an Amadeus, Sabre, Galileo or Apollo availability check for any of these eight destinations should show Turkish Airlines on seven of them, with Delhi and Mumbai adding Air India as a second option.
Amadeus: AN15JULISTxxx Sabre: A15JUNISTxxx Galileo: A/15JUNISTxxx
Replace xxx with the destination's own 3-letter IATA code from the tables above — the availability-check syntax itself doesn't change by destination, only the city pair does.
Very, relative to the other cities tracked here: 7 of Istanbul's 8 tracked connections carry a verified historical direct-service record, the highest ratio in this comparison set.
Turkish Airlines, which shows a verified historical record on 7 of the 8 destinations tracked from Istanbul, including sole-carrier status on Islamabad, Karachi, Lahore, Kathmandu and Dhaka.
Not in this dataset. Colombo is the only one of Istanbul's 8 tracked destinations without a verified historical operating record, despite being a plausible Turkish Airlines long-haul market — confirm current routing in your GDS.
No — all 8 of Istanbul's tracked destinations are international, split between Pakistan and India on the medium-haul side and Nepal, Bangladesh and Sri Lanka on the long-haul side.
Islamabad, at 3,942 km and about 4.6 hours — also one of the seven routes with a verified Turkish Airlines operating record.
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