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HIO to OOM: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Cooma (Cooma Snowy Mountains Airport)
7,863 mi
12,654 km · 6,833 nm
15h 53m
estimated nonstop flight time
+17h
time difference · heading southwest
See live HIO→OOM fares Phone-only fares on this route — call free
Flight time details
7,863 miles nonstop takes roughly 15h 53m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 17-hour time gain when reading arrival times on your ticket.
The two airports
- HIO — Portland Hillsboro Airport · Hillsboro, United States
- OOM — Cooma Snowy Mountains Airport · Cooma, Australia
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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 mi away
Near OOM
- CYG · Corryong Airport61 mi away
- MIM · Merimbula Airport66 mi away
- CBR · Canberra International Airport70 mi away
- MYA · Moruya Airport71 mi away
Frequently asked questions
How far is HIO from OOM?
The flight distance from Hillsboro (HIO) to Cooma (OOM) is 7,863 miles (12,654 km, 6,833 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HIO to OOM?
A nonstop flight takes about 15h 53m 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 Hillsboro and Cooma?
Cooma is 17 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to OOM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–OOM that never appear on search engines, with no booking fees.