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SPF to IRB: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Iraan (Iraan Municipal Airport)
944 mi
1,518 km · 820 nm
2h 31m
estimated nonstop flight time
+1h
time difference · heading south
See live SPF→IRB fares Phone-only fares on this route — call free
Flight time details
944 miles nonstop takes roughly 2h 31m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-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
- IRB — Iraan Municipal Airport · Iraan, 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 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 IRB
- OZA · Ozona Municipal Airport43 mi away
- FST · Fort Stockton Pecos County Airport61 mi away
- MAF · Midland International Airport74 mi away
- SJT · San Angelo Regional Mathis Field88 mi away
Frequently asked questions
How far is SPF from IRB?
The flight distance from Spearfish-South Dakota (SPF) to Iraan (IRB) is 944 miles (1,518 km, 820 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to IRB?
A nonstop flight takes about 2h 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 Iraan?
Iraan is 1 hour ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to IRB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–IRB that never appear on search engines, with no booking fees.