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SPF to YLY: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Langley Township (Langley Airport)
944 mi
1,519 km · 820 nm
2h 31m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SPF→YLY fares Phone-only fares on this route — call free
Flight time details
944 miles nonstop takes roughly 2h 31m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, United States
- YLY — Langley Airport · Langley Township, Canada
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 YLY
- YVR · Vancouver International Airport26 mi away
- YXX · Abbotsford Airport13 mi away
- YDT · Boundary Bay Airport17 mi away
- BLI · Bellingham International Airport22 mi away
Frequently asked questions
How far is SPF from YLY?
The flight distance from Spearfish-South Dakota (SPF) to Langley Township (YLY) is 944 miles (1,519 km, 820 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to YLY?
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 Langley Township?
Langley Township is 1 hour behind Spearfish-South Dakota.
What is the cheapest way to fly from SPF to YLY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–YLY that never appear on search engines, with no booking fees.