Tainan Airport (TNN)
Airport
TNN is the IATA airport code for Tainan Airport (Taiwan). Its ICAO code is RCNN.
Tainan Airport is a large airport in Tainan, Taiwan with scheduled passenger flights. Its longest runway is 3,050 m long (concrete), at an elevation of 19 m (63 ft).
Tainan Airport is located in Tainan, Taiwan. It serves as a domestic airport, facilitating travel within the region and connecting to key destinations. The airport operates under the IATA code TNN and the ICAO code RCNN.
Major airlines operating at Tainan Airport include Uni Air and Mandarin Airlines, offering flights to destinations such as Taipei and Kaohsiung. The airport features a single terminal with basic amenities to support travelers.
Established in 1978, Tainan Airport plays an important role in the transportation infrastructure of southern Taiwan, supporting both tourism and commerce in the area.
Basic Information
How early to be at TNN
- International flights
- 3 to 3.5 hours before departure
- Domestic flights
- 2 to 2.5 hours before departure
Our estimate for a normal day; the airport publishes no figure of its own.
Check-in usually closes 40 to 60 minutes before departure. Your airline's own time is on its website and your booking, and it always wins.
All details for TNN →An estimate, never a promise. Check your airline before you go. How we work this out
Key facts
Runways
| Runway | Length | Surface | Lights |
|---|---|---|---|
| 18L/36R | 3,050 m (10,007 ft) | concrete | Yes |
| 18R/36L | 3,050 m (10,007 ft) | concrete | Yes |
Airport facts from OurAirports (public domain), checked 16 Oct 2026.
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Lounge access
No business class ticket or lounge membership? Many lounges at Tainan Airport sell day passes, usually for a few hours with food, drinks, Wi-Fi and sometimes showers. Book ahead: walk-in prices are often higher and lounges can turn people away when full.
See lounge passes for TNNPartner link: we may earn a commission, at no extra cost to you.
TNN: questions and answers
What is the airport code of Tainan Airport?
The airport code of Tainan Airport is TNN (IATA) and RCNN (ICAO).
Which city is TNN airport in?
Tainan Airport is in Tainan, Taiwan.
Does Tainan Airport have scheduled passenger flights?
Yes. TNN has scheduled passenger flights; see the airlines that fly here on this page.
Contact
Nearby airports
- Gangshan Air Force Base 20 km
- Pingtung North Airport (PIF) 40 km
- Pingtung South Airport 41 km
- Kaohsiung International Airport (KHH) 44 km
- Chiayi Airport (CYI) 60 km
- Makung Airport (MZG) 91 km
Related
More airport guides in Taiwan
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