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LSY to HLN: distance & flight time
Lismore (Lismore Airport) → Helena (Helena Regional Airport)
7,849 mi
12,632 km · 6,820 nm
15h 51m
estimated nonstop flight time
-16h
time difference · heading northeast
See live LSY→HLN fares Phone-only fares on this route — call free
Flight time details
7,849 miles nonstop takes roughly 15h 51m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- LSY — Lismore Airport · Lismore, Australia
- HLN — Helena Regional Airport · Helena, 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 LSY
- BNK · Ballina Byron Gateway Airport18 mi away
- OOL · Gold Coast Airport48 mi away
- GFN · Grafton Airport66 mi away
- ACF · Brisbane Archerfield Airport88 mi away
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
Frequently asked questions
How far is LSY from HLN?
The flight distance from Lismore (LSY) to Helena (HLN) is 7,849 miles (12,632 km, 6,820 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LSY to HLN?
A nonstop flight takes about 15h 51m 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 Lismore and Helena?
Helena is 16 hours behind Lismore.
What is the cheapest way to fly from LSY to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LSY–HLN that never appear on search engines, with no booking fees.