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SPF to BWI: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Baltimore (Baltimore/Washington International Thurgood Marshall Airport)
1,436 mi
2,311 km · 1,248 nm
3h 35m
estimated nonstop flight time
+2h
time difference · heading east
See live SPF→BWI fares Phone-only fares on this route — call free
Flight time details
1,436 miles nonstop takes roughly 3h 35m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-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
- BWI — Baltimore/Washington International Thurgood Marshall Airport · Baltimore, 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 BWI
- DCA · Ronald Reagan Washington National Airport30 mi away
- IAD · Washington Dulles International Airport45 mi away
- FME · Tipton Airport8 mi away
- ANP · Lee Airport17 mi away
Frequently asked questions
How far is SPF from BWI?
The flight distance from Spearfish-South Dakota (SPF) to Baltimore (BWI) is 1,436 miles (2,311 km, 1,248 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to BWI?
A nonstop flight takes about 3h 35m 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 Baltimore?
Baltimore is 2 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to BWI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–BWI that never appear on search engines, with no booking fees.