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KYD to HLN: distance & flight time
Lanyu (Lanyu Airport) → Helena (Helena Regional Airport)
6,639 mi
10,685 km · 5,769 nm
13h 29m
estimated nonstop flight time
-14h
time difference · heading northeast
See live KYD→HLN fares Phone-only fares on this route — call free
Flight time details
6,639 miles nonstop takes roughly 13h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- KYD — Lanyu Airport · Lanyu, Taiwan
- 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 KYD
- GNI · Lyudao Airport45 mi away
- HCN · Hengchun Airport52 mi away
- TTT · Taitung Airport57 mi away
- PIF · Pingtung North Airport82 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 KYD from HLN?
The flight distance from Lanyu (KYD) to Helena (HLN) is 6,639 miles (10,685 km, 5,769 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KYD to HLN?
A nonstop flight takes about 13h 29m 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 Lanyu and Helena?
Helena is 14 hours behind Lanyu.
What is the cheapest way to fly from KYD to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KYD–HLN that never appear on search engines, with no booking fees.