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ISA to DEC: distance & flight time
Mount Isa (Mount Isa Airport) → Decatur (Decatur Airport)
9,307 mi
14,979 km · 8,088 nm
18h 43m
estimated nonstop flight time
-15h
time difference · heading northeast
See live ISA→DEC fares Phone-only fares on this route — call free
Flight time details
9,307 miles nonstop takes roughly 18h 43m 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
- ISA — Mount Isa Airport · Mount Isa, Australia
- DEC — Decatur Airport · Decatur, 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 ISA
- CNJ · Cloncurry Airport66 mi away
- JCK · Julia Creek Airport144 mi away
Frequently asked questions
How far is ISA from DEC?
The flight distance from Mount Isa (ISA) to Decatur (DEC) is 9,307 miles (14,979 km, 8,088 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISA to DEC?
A nonstop flight takes about 18h 43m 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 Mount Isa and Decatur?
Decatur is 15 hours behind Mount Isa.
What is the cheapest way to fly from ISA to DEC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISA–DEC that never appear on search engines, with no booking fees.