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EFD to ISN: distance & flight time
Houston (Ellington Airport) → Williston (Sloulin Field International Airport)
1,360 mi
2,188 km · 1,182 nm
3h 25m
estimated nonstop flight time
Same time
time difference · heading north
See live EFD→ISN fares Phone-only fares on this route — call free
Flight time details
1,360 miles nonstop takes roughly 3h 25m gate to gate, flying north. 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
- EFD — Ellington Airport · Houston, United States
- ISN — Sloulin Field International Airport · Williston, 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 EFD
- IAH · George Bush Intercontinental Houston Airport28 mi away
- HOU · William P Hobby Airport8 mi away
- AAP · Andrau Airpark27 mi away
- GLS · Scholes International At Galveston Airport30 mi away
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
Frequently asked questions
How far is EFD from ISN?
The flight distance from Houston (EFD) to Williston (ISN) is 1,360 miles (2,188 km, 1,182 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from EFD to ISN?
A nonstop flight takes about 3h 25m 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 EFD to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on EFD–ISN that never appear on search engines, with no booking fees.