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SEP to TNN: distance & flight time
Stephenville (Stephenville Clark Regional Airport) → Tainan (Tainan Airport)
7,860 mi
12,649 km · 6,830 nm
15h 53m
estimated nonstop flight time
+13h
time difference · heading northwest
See live SEP→TNN fares Phone-only fares on this route — call free
Flight time details
7,860 miles nonstop takes roughly 15h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- SEP — Stephenville Clark Regional Airport · Stephenville, United States
- TNN — Tainan Airport · Tainan, Taiwan
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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
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
Frequently asked questions
How far is SEP from TNN?
The flight distance from Stephenville (SEP) to Tainan (TNN) is 7,860 miles (12,649 km, 6,830 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEP to TNN?
A nonstop flight takes about 15h 53m 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 Stephenville and Tainan?
Tainan is 13 hours ahead of Stephenville.
What is the cheapest way to fly from SEP to TNN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEP–TNN that never appear on search engines, with no booking fees.