Need help booking?
Unpublished phone-only deals available
KLS to SPF: distance & flight time
Kelso (Southwest Washington Regional Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
934 mi
1,502 km · 811 nm
2h 30m
estimated nonstop flight time
+1h
time difference · heading east
See live KLS→SPF fares Phone-only fares on this route — call free
Flight time details
934 miles nonstop takes roughly 2h 30m gate to gate, flying east. 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
- KLS — Southwest Washington Regional Airport · Kelso, United States
- 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 KLS
- PDX · Portland International Airport39 mi away
- CLS · Chehalis Centralia Airport39 mi away
- HIO · Portland Hillsboro Airport40 mi away
- TTD · Portland Troutdale Airport46 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 KLS from SPF?
The flight distance from Kelso (KLS) to Spearfish-South Dakota (SPF) is 934 miles (1,502 km, 811 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to SPF?
A nonstop flight takes about 2h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from KLS to SPF?
Nonstop service on KLS–SPF depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 2h 30m nonstop estimate.
What is the time difference between Kelso and Spearfish-South Dakota?
Spearfish-South Dakota is 1 hour ahead of Kelso.
What is the cheapest way to fly from KLS to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–SPF that never appear on search engines, with no booking fees.
Why are some KLS to SPF fares phone-only?
Consolidator contracts let us sell certain KLS–SPF tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.