# Distance from Chicago (ORD) to Tainan City (TNN)

> 12,238 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,238 km / 7,604 mi / 6,608 nm
- **Estimated flight time**: 15h
- **Heading**: 332° (north northwest)
- **Return heading**: 22° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Taiwan
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 23:29 in Chicago, it's 12:29 in Tainan City)
- **Elevation difference**: 617 ft (TNN is lower than ORD)

## Airports

### [Chicago O'Hare International Airport (ORD)](https://www.flightduration.online/airport/ord-chicago-chicago-ohare-international-airport/1ef266df-3115-6742-b012-06bb2780ed98)

- City: Chicago, United States
- ICAO: KORD
- Timezone: America/Chicago
- Coordinates: 41.980000, -87.910000
- Elevation: 680 ft

### [Tainan Airport (TNN)](https://www.flightduration.online/airport/tnn-tainan-city-tainan-airport/1ef266df-8aef-6c86-a5dd-06bb2780ed98)

- City: Tainan City, Taiwan
- ICAO: RCNN
- Timezone: Asia/Taipei
- Coordinates: 22.950000, 120.210000
- Elevation: 63 ft

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 23:29 in Chicago, it's 12:29 in Tainan City.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Chicago O'Hare International Airport (ORD)](https://www.flightduration.online/airport/ord-chicago-chicago-ohare-international-airport/1ef266df-3115-6742-b012-06bb2780ed98)
- [Tainan Airport (TNN)](https://www.flightduration.online/airport/tnn-tainan-city-tainan-airport/1ef266df-8aef-6c86-a5dd-06bb2780ed98)
- [Flight duration calculator](/#calculator)