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YSB to HLN: distance & flight time

Sudbury (Sudbury Airport) → Helena (Helena Regional Airport)

1,470 mi
2,366 km · 1,278 nm
3h 40m
estimated nonstop flight time
-2h
time difference · heading west
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Flight time details

1,470 miles nonstop takes roughly 3h 40m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.

The two airports

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.

Frequently asked questions

How far is YSB from HLN?

The flight distance from Sudbury (YSB) to Helena (HLN) is 1,470 miles (2,366 km, 1,278 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from YSB to HLN?

A nonstop flight takes about 3h 40m 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 Sudbury and Helena?

Helena is 2 hours behind Sudbury.

What is the cheapest way to fly from YSB to HLN?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSB–HLN that never appear on search engines, with no booking fees.
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