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HLN to KOP: distance & flight time
Helena (Helena Regional Airport) → Nakhon Phanom (Nakhon Phanom Airport)
7,462 mi
12,009 km · 6,485 nm
15h 6m
estimated nonstop flight time
+13h
time difference · heading northwest
See live HLN→KOP fares Phone-only fares on this route — call free
Flight time details
7,462 miles nonstop takes roughly 15h 6m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- KOP — Nakhon Phanom Airport · Nakhon Phanom, Thailand
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 KOP
- SNO · Sakon Nakhon Airport37 mi away
- ZVK · Savannakhet Airport58 mi away
- ROI · Roi Et Airport105 mi away
- VII · Vinh Airport115 mi away
Frequently asked questions
How far is HLN from KOP?
The flight distance from Helena (HLN) to Nakhon Phanom (KOP) is 7,462 miles (12,009 km, 6,485 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to KOP?
A nonstop flight takes about 15h 6m 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 Nakhon Phanom?
Nakhon Phanom is 13 hours ahead of Helena.
What is the cheapest way to fly from HLN to KOP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–KOP that never appear on search engines, with no booking fees.