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HLN to AOU: distance & flight time
Helena (Helena Regional Airport) → Attopeu (Attopeu Airport)
7,557 mi
12,162 km · 6,567 nm
15h 17m
estimated nonstop flight time
—
time difference · heading northwest
See live HLN→AOU fares Phone-only fares on this route — call free
Flight time details
7,557 miles nonstop takes roughly 15h 17m gate to gate, flying northwest. 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
- HLN — Helena Regional Airport · Helena, United States
- AOU — Attopeu Airport · Attopeu, Laos
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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Near AOU
- VNA · Saravane Airport68 mi away
- PKZ · Pakse International Airport73 mi away
- RBE · Ratanakiri Airport76 mi away
- PXU · Pleiku Airport98 mi away
Frequently asked questions
How far is HLN from AOU?
The flight distance from Helena (HLN) to Attopeu (AOU) is 7,557 miles (12,162 km, 6,567 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to AOU?
A nonstop flight takes about 15h 17m 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 cheapest way to fly from HLN to AOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–AOU that never appear on search engines, with no booking fees.