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ISN to SKF: distance & flight time
Williston (Sloulin Field International Airport) → San Antonio (Lackland Air Force Base)
1,326 mi
2,134 km · 1,152 nm
3h 21m
estimated nonstop flight time
Same time
time difference · heading south
See live ISN→SKF fares Phone-only fares on this route — call free
Flight time details
1,326 miles nonstop takes roughly 3h 21m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- SKF — Lackland Air Force Base · San Antonio, 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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Near SKF
- SSF · Stinson Municipal Airport7 mi away
- SAT · San Antonio International Airport12 mi away
- RND · Randolph Air Force Base21 mi away
- AUS · Austin Bergstrom International Airport78 mi away
Frequently asked questions
How far is ISN from SKF?
The flight distance from Williston (ISN) to San Antonio (SKF) is 1,326 miles (2,134 km, 1,152 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to SKF?
A nonstop flight takes about 3h 21m 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 cheapest way to fly from ISN to SKF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–SKF that never appear on search engines, with no booking fees.