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SPF to IAS: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Iasi (Iaşi Airport)
5,449 mi
8,769 km · 4,735 nm
11h 9m
estimated nonstop flight time
+9h
time difference · heading northeast
See live SPF→IAS fares Phone-only fares on this route — call free
Flight time details
5,449 miles nonstop takes roughly 11h 9m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-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
- IAS — Iaşi Airport · Iasi, Romania
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 IAS
- BZY · Bălți International Airport46 mi away
- BCM · Bacău Airport56 mi away
- KIV · Chişinău International Airport64 mi away
- SCV · Suceava Stefan cel Mare Airport69 mi away
Frequently asked questions
How far is SPF from IAS?
The flight distance from Spearfish-South Dakota (SPF) to Iasi (IAS) is 5,449 miles (8,769 km, 4,735 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to IAS?
A nonstop flight takes about 11h 9m 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 Iasi?
Iasi is 9 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to IAS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–IAS that never appear on search engines, with no booking fees.