Xining Caojiabao International Airport
Haidong (Huzhu Tu Autonomous County), China — flight times and distances to airports around the world, computed from published coordinates.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Both airports' coordinates come from OurAirports, a public-domain dataset — nothing is scraped from another flight site.
- Distance is a great-circle (haversine) figure on a mean earth radius of 6,371.0088 km, so it is the shortest path over the surface, not a road distance.
- Airborne time is that distance divided by 805 km/h, a representative jet cruise speed.
- A flat 25 minutes is added for pushback, taxi, climb, descent and taxi-in, which is why no hop is ever half an hour gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled, and every route page shows the same distance at four cruise speeds so you can see what that assumption is worth.
gate-to-gate hours = 0.42 + distance km / 805
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Flight times from XNN to the nearest major hubs
Great-circle distance and estimated flight time to the closest large international airports — the realistic connecting points from Haidong (Huzhu Tu Autonomous County).
| Hub | Code | Distance | Flight time |
|---|---|---|---|
| Xi'an, China | XIY | 651 km | 1h 14m |
| Chengdu (Shuangliu), China | CTU | 687 km | 1h 16m |
| Chongqing, China | CKG | 871 km | 1h 30m |
| Kunming, China | KMG | 1,272 km | 2h 00m |
| Wuhan (Huangpi), China | WUH | 1,294 km | 2h 02m |
| Beijing, China | PKX | 1,300 km | 2h 02m |
| Beijing, China | PEK | 1,328 km | 2h 04m |
| Nanjing, China | NKG | 1,635 km | 2h 27m |
| Hanoi (Soc Son), Vietnam | HAN | 1,741 km | 2h 35m |
| Dhaka, Bangladesh | DAC | 1,797 km | 2h 39m |
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Questions about XNN
What is the airport code for Haidong (Huzhu Tu Autonomous County)?
Xining Caojiabao International Airport uses the IATA code XNN and the ICAO code ZLXN. IATA codes are the three-letter ones on your boarding pass; ICAO codes are four letters and used by air traffic control.
Where is Xining Caojiabao International Airport?
It sits at 36.5278° N, 102.0402° E, serving Haidong (Huzhu Tu Autonomous County) in China, at an elevation of 7,119 feet.
Data from OurAirports (public domain) · Wikipedia. Flight times are great-circle estimates for planning only — always check the airline's published schedule.
