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TDR to ISN: distance & flight time
Theodore (Theodore Airport) → Williston (Sloulin Field International Airport)
8,219 mi
13,227 km · 7,142 nm
16h 35m
estimated nonstop flight time
-15h
time difference · heading northeast
See live TDR→ISN fares Phone-only fares on this route — call free
Flight time details
8,219 miles nonstop takes roughly 16h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- TDR — Theodore Airport · Theodore, Australia
- 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 TDR
- THG · Thangool Airport46 mi away
- XTO · Taroom Airport57 mi away
- GLT · Gladstone Airport105 mi away
- GAH · Gayndah Airport105 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 TDR from ISN?
The flight distance from Theodore (TDR) to Williston (ISN) is 8,219 miles (13,227 km, 7,142 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TDR to ISN?
A nonstop flight takes about 16h 35m 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 Theodore and Williston?
Williston is 15 hours behind Theodore.
What is the cheapest way to fly from TDR to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TDR–ISN that never appear on search engines, with no booking fees.