Boise (BOI) to Helena (HLN)
Flight time
≈ 1h 23m
Bearing
43° NE
Boise (BOI) to Helena (HLN) is 295 miles (474 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOI–HLN
US DOT T-100 · filed dataIn December 2025, SkyWest Airlines was the only carrier flying nonstop BOI–HLN; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 0% full.
Departures
1
December 2025
Seats
76
both directions
Passengers
0
both directions
Load factor
0.0%
passengers ÷ seats
Who flies BOI–HLN?
SkyWest Airlines was the only carrier to fly nonstop BOI–HLN in December 2025 (1 departures).
- OO
SkyWest Airlines
1 departures · 76 seats
Share of departures100.0%0.0%
Load
What plane flies BOI–HLN?
In December 2025, the Embraer E175 flew 100% of BOI–HLN departures.
- Embraer E175
1 departures · 0.0% load
100.0%
How has BOI–HLN traffic changed?
Nonstop BOI–HLN departures held steady at about 1 a month between August 2025 and December 2025.
Monthly nonstop BOI–HLN traffic, trailing 12 months through December 2025. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
1 departures · 0 passengers
0.0%
Load
September 2025
0 departures · 0 passengers
—
Load
October 2025
1 departures · 0 passengers
0.0%
Load
November 2025
1 departures · 0 passengers
0.0%
Load
December 2025
1 departures · 0 passengers
0.0%
Load
Nonstop BOI–HLN traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through December 2025; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Boise (BOI) from Helena (HLN)?
BOI to HLN is 295 miles (474 km / 256 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOI to HLN?
A nonstop covers the 295-mile great-circle distance in roughly 1h 23m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOI–HLN?
In December 2025, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying BOI–HLN?
Distance-based programs credit off the 295-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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