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HLN to SDJ: distance & flight time
Helena (Helena Regional Airport) → Sendai (Sendai Airport)
5,054 mi
8,134 km · 4,392 nm
10h 23m
estimated nonstop flight time
+15h
time difference · heading northwest
See live HLN→SDJ fares Phone-only fares on this route — call free
Flight time details
5,054 miles nonstop takes roughly 10h 23m 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
- SDJ — Sendai Airport · Sendai, 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 SDJ
- GAJ · Yamagata Airport35 mi away
- FKS · Fukushima Airport68 mi away
- SYO · Shonai Airport77 mi away
- HNA · Hanamaki Airport90 mi away
Frequently asked questions
How far is HLN from SDJ?
The flight distance from Helena (HLN) to Sendai (SDJ) is 5,054 miles (8,134 km, 4,392 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to SDJ?
A nonstop flight takes about 10h 23m 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 Sendai?
Sendai is 15 hours ahead of Helena.
What is the cheapest way to fly from HLN to SDJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–SDJ that never appear on search engines, with no booking fees.