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YDT to HLN: distance & flight time
Boundary Bay (Boundary Bay Airport) → Helena (Helena Regional Airport)
539 mi
867 km · 468 nm
1h 38m
estimated nonstop flight time
+1h
time difference · heading east
See live YDT→HLN fares Phone-only fares on this route — call free
Flight time details
539 miles nonstop takes roughly 1h 38m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- YDT — Boundary Bay Airport · Boundary Bay, Canada
- 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 YDT
- YVR · Vancouver International Airport11 mi away
- CXH · Vancouver Harbour Water Aerodrome16 mi away
- YLY · Langley Airport17 mi away
- YBW · Bedwell Harbour Seaplane Base25 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 YDT from HLN?
The flight distance from Boundary Bay (YDT) to Helena (HLN) is 539 miles (867 km, 468 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YDT to HLN?
A nonstop flight takes about 1h 38m 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 Boundary Bay and Helena?
Helena is 1 hour ahead of Boundary Bay.
What is the cheapest way to fly from YDT to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YDT–HLN that never appear on search engines, with no booking fees.