HLN
Helena Regional Airport

Helena Regional Airport (IATA: HLN, ICAO: KHLN) is a medium airport in Helena, Montana, United States. It opened in Apr 1940. It has 4 runways; the longest is 9,000 ft (2,743 m). In 2025 it handled 205 thousand passengers.
Timeline
1 event · 1940–1940APR 1940
OpenedHelena Regional Airport opens.
From Wikidata · FAAEvery airfield, 1903–2026
Runways & airfield
Schematic · N · © OpenStreetMap · FAA diagram PDF09/27102° / 282° · LIT
LENGTH9,000 ft2,743 mWIDTH150 ft46 mSURFACEAsphalt
05/23066° / 246° · LIT · SLOPE 1.2%
LENGTH4,644 ft1,416 mWIDTH75 ft23 mSURFACEAsphalt
17/35179° / 359° · LIT · SLOPE 1.7%
LENGTH2,989 ft911 mWIDTH75 ft23 mSURFACEAsphalt
10/28103° / 283°
LENGTH1,584 ft483 mWIDTH75 ft23 mSURFACEGrass
Passengers per year
2014–2025194K
211K
207K
208K
231K
237K
95K
142K
164K
177K
202K
205K
141516171819202122232425
Routes
6 destinations · 1 countryMost destinationsAlpine Air Express 3Delta Connection 1Alaska Airlines 1United Express 1
Straight lines are great circles; rings mark true distance from HLN. Blue: cargo. From the Wikipedia article “Helena Regional Airport” (revision of 12 Sep 2026), CC BY-SA 4.0.
Records & rankings
Ranked among 48,011 open airports · world · region · countryScale: share of airports ranked below, best on the right · ties shown as = and a band · passengers are each airport’s latest year on record
Radio frequencies
8 channelsA/DAPP/DEP119.500
ATISATIS120.400
CTAFCTAF118.300
GNDGND121.900
OPSARNG OPS40.650
RDOGREAT FALLS RDO122.550
TWRTWR118.300
UNICUNICOM122.950