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NST to SPF: distance & flight time
Nakhon Si Thammarat (Nakhon Si Thammarat Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
8,486 mi
13,656 km · 7,374 nm
17h 6m
estimated nonstop flight time
-13h
time difference · heading north
See live NST→SPF fares Phone-only fares on this route — call free
Flight time details
8,486 miles nonstop takes roughly 17h 6m 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
- NST — Nakhon Si Thammarat Airport · Nakhon Si Thammarat, 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 NST
- URT · Surat Thani Airport69 mi away
- USM · Samui Airport70 mi away
- KBV · Krabi Airport72 mi away
- TST · Trang Airport75 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 NST from SPF?
The flight distance from Nakhon Si Thammarat (NST) to Spearfish-South Dakota (SPF) is 8,486 miles (13,656 km, 7,374 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NST to SPF?
A nonstop flight takes about 17h 6m 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 Nakhon Si Thammarat and Spearfish-South Dakota?
Spearfish-South Dakota is 13 hours behind Nakhon Si Thammarat.
What is the cheapest way to fly from NST to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NST–SPF that never appear on search engines, with no booking fees.