Need help booking?
Unpublished phone-only deals available
ISN to AUS: distance & flight time
Williston (Sloulin Field International Airport) → Austin (Austin Bergstrom International Airport)
1,282 mi
2,063 km · 1,114 nm
3h 15m
estimated nonstop flight time
Same time
time difference · heading south
See live ISN→AUS fares Phone-only fares on this route — call free
Flight time details
1,282 miles nonstop takes roughly 3h 15m 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
- AUS — Austin Bergstrom International Airport · Austin, 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 AUS
- RND · Randolph Air Force Base59 mi away
- GRK · Robert Gray Army Air Field Airport61 mi away
- HLR · Hood Army Air Field65 mi away
- SAT · San Antonio International Airport66 mi away
Frequently asked questions
How far is ISN from AUS?
The flight distance from Williston (ISN) to Austin (AUS) is 1,282 miles (2,063 km, 1,114 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to AUS?
A nonstop flight takes about 3h 15m 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 ISN to AUS?
Nonstop service on ISN–AUS 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 15m nonstop estimate.
What is the cheapest way to fly from ISN to AUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–AUS that never appear on search engines, with no booking fees.
Why are some ISN to AUS fares phone-only?
Consolidator contracts let us sell certain ISN–AUS 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.