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ISA to IAD: distance & flight time
Mount Isa (Mount Isa Airport) → Washington (Washington Dulles International Airport)
9,912 mi
15,952 km · 8,613 nm
19h 54m
estimated nonstop flight time
-14h
time difference · heading northeast
See live ISA→IAD fares Phone-only fares on this route — call free
Flight time details
9,912 miles nonstop takes roughly 19h 54m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- ISA — Mount Isa Airport · Mount Isa, Australia
- IAD — Washington Dulles International Airport · Washington, 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 IAD?
The flight distance from Mount Isa (ISA) to Washington (IAD) is 9,912 miles (15,952 km, 8,613 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISA to IAD?
A nonstop flight takes about 19h 54m 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 Washington?
Washington is 14 hours behind Mount Isa.
What is the cheapest way to fly from ISA to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISA–IAD that never appear on search engines, with no booking fees.