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UNN to SPF: distance & flight time
Ranong (Ranong Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
8,436 mi
13,576 km · 7,330 nm
17h
estimated nonstop flight time
-13h
time difference · heading north
See live UNN→SPF fares Phone-only fares on this route — call free
Flight time details
8,436 miles nonstop takes roughly 17h gate to gate, flying north. 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
- UNN — Ranong Airport · Ranong, Thailand
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, 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 UNN
- KAW · Kawthoung Airport19 mi away
- URT · Surat Thani Airport58 mi away
- CJM · Chumphon Airport83 mi away
- VBP · Bokpyinn Airport95 mi away
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
Frequently asked questions
How far is UNN from SPF?
The flight distance from Ranong (UNN) to Spearfish-South Dakota (SPF) is 8,436 miles (13,576 km, 7,330 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UNN to SPF?
A nonstop flight takes about 17h 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 Ranong and Spearfish-South Dakota?
Spearfish-South Dakota is 13 hours behind Ranong.
What is the cheapest way to fly from UNN to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UNN–SPF that never appear on search engines, with no booking fees.