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SPF to EAS: distance & flight time

Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → San Sebastian (San Sebastian Airport)

4,704 mi
7,571 km · 4,088 nm
9h 41m
estimated nonstop flight time
+8h
time difference · heading northeast
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Flight time details

4,704 miles nonstop takes roughly 9h 41m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.

The two airports

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.

Frequently asked questions

How far is SPF from EAS?

The flight distance from Spearfish-South Dakota (SPF) to San Sebastian (EAS) is 4,704 miles (7,571 km, 4,088 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from SPF to EAS?

A nonstop flight takes about 9h 41m 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 San Sebastian?

San Sebastian is 8 hours ahead of Spearfish-South Dakota.

What is the cheapest way to fly from SPF to EAS?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–EAS that never appear on search engines, with no booking fees.
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