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HLN to DED: distance & flight time
Helena (Helena Regional Airport) → Dehra Dun (Dehradun Airport)
7,093 mi
11,415 km · 6,164 nm
14h 22m
estimated nonstop flight time
+11.5h
time difference · heading north
See live HLN→DED fares Phone-only fares on this route — call free
Flight time details
7,093 miles nonstop takes roughly 14h 22m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- DED — Dehradun Airport · Dehra Dun, India
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 DED
- IXC · Chandigarh Airport89 mi away
- SLV · Shimla Airport90 mi away
- PGH · Pantnagar Airport111 mi away
- DEL · Indira Gandhi International Airport130 mi away
Frequently asked questions
How far is HLN from DED?
The flight distance from Helena (HLN) to Dehra Dun (DED) is 7,093 miles (11,415 km, 6,164 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to DED?
A nonstop flight takes about 14h 22m 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 Dehra Dun?
Dehra Dun is 11.5 hours ahead of Helena.
What is the cheapest way to fly from HLN to DED?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–DED that never appear on search engines, with no booking fees.