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HLN to OKI: distance & flight time
Helena (Helena Regional Airport) → Oki Island (Oki Airport)
5,432 mi
8,742 km · 4,720 nm
11h 7m
estimated nonstop flight time
+15h
time difference · heading northwest
See live HLN→OKI fares Phone-only fares on this route — call free
Flight time details
5,432 miles nonstop takes roughly 11h 7m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- OKI — Oki Airport · Oki Island, Japan
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 OKI
- YGJ · Miho Yonago Airport48 mi away
- IZO · Izumo Airport58 mi away
- TTJ · Tottori Airport65 mi away
- TJH · Tajima Airport94 mi away
Frequently asked questions
How far is HLN from OKI?
The flight distance from Helena (HLN) to Oki Island (OKI) is 5,432 miles (8,742 km, 4,720 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to OKI?
A nonstop flight takes about 11h 7m 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 Helena and Oki Island?
Oki Island is 15 hours ahead of Helena.
What is the cheapest way to fly from HLN to OKI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–OKI that never appear on search engines, with no booking fees.