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SPF to TDX: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Trat (Trat Airport)
8,187 mi
13,176 km · 7,115 nm
16h 31m
estimated nonstop flight time
+13h
time difference · heading northwest
See live SPF→TDX fares Phone-only fares on this route — call free
Flight time details
8,187 miles nonstop takes roughly 16h 31m 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
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, United States
- TDX — Trat Airport · Trat, Thailand
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 SPF
- RCA · Ellsworth Air Force Base41 mi away
- RAP · Rapid City Regional Airport47 mi away
- GCC · Gillette Campbell County Airport87 mi away
- CDR · Chadron Municipal Airport119 mi away
Near TDX
- BBM · Battambang Airport83 mi away
- UTP · U-Tapao International Airport93 mi away
- REP · Siem Reap International Airport128 mi away
- BKK · Suvarnabhumi Airport144 mi away
Frequently asked questions
How far is SPF from TDX?
The flight distance from Spearfish-South Dakota (SPF) to Trat (TDX) is 8,187 miles (13,176 km, 7,115 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to TDX?
A nonstop flight takes about 16h 31m 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 Spearfish-South Dakota and Trat?
Trat is 13 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to TDX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–TDX that never appear on search engines, with no booking fees.