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TNN to SUS: distance & flight time
Tainan (Tainan Airport) → Null (Spirit of St Louis Airport)
7,734 mi
12,447 km · 6,721 nm
15h 38m
estimated nonstop flight time
-13h
time difference · heading northeast
See live TNN→SUS fares Phone-only fares on this route — call free
Flight time details
7,734 miles nonstop takes roughly 15h 38m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- TNN — Tainan Airport · Tainan, Taiwan
- SUS — Spirit of St Louis Airport · Null, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near TNN
- PIF · Pingtung North Airport25 mi away
- KHH · Kaohsiung International Airport27 mi away
- CYI · Chiayi Airport37 mi away
- WOT · Wang-an Airport53 mi away
Near SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is TNN from SUS?
The flight distance from Tainan (TNN) to Null (SUS) is 7,734 miles (12,447 km, 6,721 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TNN to SUS?
A nonstop flight takes about 15h 38m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Tainan and Null?
Null is 13 hours behind Tainan.
What is the cheapest way to fly from TNN to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TNN–SUS that never appear on search engines, with no booking fees.