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SPF to BOS: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Boston (General Edward Lawrence Logan International Airport)
1,640 mi
2,640 km · 1,425 nm
3h 41m
estimated nonstop flight time
+2h
time difference · heading east
See live SPF→BOS fares Phone-only fares on this route — call free
Flight time details
1,640 miles nonstop takes roughly 3h 41m 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
- BOS — General Edward Lawrence Logan International Airport · Boston, 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 BOS
- OWD · Norwood Memorial Airport15 mi away
- BED · Laurence G Hanscom Field16 mi away
- BVY · Beverly Municipal Airport16 mi away
- LWM · Lawrence Municipal Airport25 mi away
Frequently asked questions
How far is SPF from BOS?
The flight distance from Spearfish-South Dakota (SPF) to Boston (BOS) is 1,640 miles (2,640 km, 1,425 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to BOS?
A nonstop flight takes about 3h 41m 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 SPF to BOS?
Nonstop service on SPF–BOS 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 3h 41m nonstop estimate.
What is the time difference between Spearfish-South Dakota and Boston?
Boston is 2 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to BOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–BOS that never appear on search engines, with no booking fees.
Why are some SPF to BOS fares phone-only?
Consolidator contracts let us sell certain SPF–BOS 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.