Tainan Airport
Tainan Airport (TNN) currently has nonstop service to 4 destinations on 2 airlines in our latest departure data. The busiest route is to Shang-I (KNH), and the largest operator here is UNI Air with nonstops to 2 destinations. 2 of its routes are international.
Route data as of June 15, 2026, based on a 7-day departures sample.
How TNN is connected
2 international routes in this schedule set
Japan 2 · Taiwan 2
3/day
ATR 42/72 · Airbus A320 family
TNN route guides with flight times
These routes have enough tracked flights or schedule depth for a full guide with duration, distance, airlines, aircraft, and frequency.
2 airlines fly direct from TNN
Ranked by destinations served, then daily frequency.
Direct flights to 4 cities
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
- Search →
KNH · Shang-I1 airline · 3/day · ATR 42/72
View TNN–KNH route guide →- UNI Air · ATR 42/723/day
Quick answers
Where is Tainan Airport?
Tainan Airport (TNN / RCNN) is located in Tainan City, Taiwan.
What is the IATA code for Tainan Airport?
The IATA code is TNN. The ICAO code is RCNN.
What is the busiest route from TNN?
The busiest scheduled route from TNN in our current departure data is TNN to KNH (Shang-I), with 3/day.
Who is the largest operator at TNN?
UNI Air is the largest operator in our TNN schedule data, serving 2 destinations with 6/day.
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