From KBOI's three-runway towered field to S76's 15,000 ft non-towered runway, Idaho rewards careful runway and terrain planning.
The brief
Idaho flying changes character fast. KBOI (BOISE AIR TRML/GOWEN FLD) is the clear full-service anchor, with three runways, a 10,000 ft longest runway, ILS capability and three FBOs. Leave Boise and the system becomes much more rural. The state has 129 public-use airports, but only six are towered. The eastern and southern routes offer long, practical runways at towered airports. KPIH (POCATELLO RGNL) has a 9,059 ft runway at 4,452 ft. KIDA (IDAHO FALLS RGNL) has a 9,002 ft runway at 4,744 ft. KTWF (JOSLIN FLD/MAGIC VALLEY RGNL) adds an 8,704 ft runway at 4,153 ft. These fields are useful for IFR work, fuel planning and diversions across higher terrain. North Idaho is a different kind of flying. KCOE (COEUR D'ALENE) is non-towered but has an ILS, a 7,400 ft runway and an FBO. KSZT (SANDPOINT) also combines non-towered operations with ILS capability. S76 (BROOKS) lists the state's longest runway at 15,000 ft. Mountain weather, valley winds, winter icing and summer density altitude are not side notes here. They shape the plan.
Best of Idaho
Superlatives selected from the Idaho top airports list, with the why.
KBOI (BOISE AIR TRML/GOWEN FLD) has three runways, a 10,000 ft longest runway, ILS capability and three FBOs. It is the strongest Idaho choice for IFR arrivals, business aviation and services.
S76 (BROOKS) is non-towered yet lists Idaho's longest runway at 15,000 ft. The Coeur d'Alene area location makes it unusual for pilots comparing runway length against towered fields.
KSUN (FRIEDMAN MEML) sits at 5,320 ft near Hailey with a 7,550 ft runway. It is towered and serviceable, but terrain, winds and density altitude deserve real preflight attention.
KCOE (COEUR D'ALENE) combines a 7,400 ft runway, ILS capability, 2,320 ft elevation and an on-field FBO. It is a practical North Idaho base without a control tower.
KDIJ (DRIGGS/REED MEML) is the highest field among the top Idaho airports at 6,257 ft. The 7,301 ft runway helps, but summer performance planning matters on every departure.
KLWS (LEWISTON/NEZ PERCE COUNTY) is towered, has ILS capability, a 6,511 ft runway and an elevation of 1,442 ft. It is one of the more forgiving Idaho stops when mountain fields are marginal.
Where pilots fly
What to know
Idaho is mostly non-towered flying. The aggregate data lists 129 public-use airports, with only six towered fields. Those include KBOI, KPIH, KIDA, KTWF, KLWS and KSUN. Seven airports have ILS capability, so IFR alternates can be spaced far apart depending on route. Expect frequent CTAF work, self-announcing traffic and terrain-driven routing between services.
Field elevation changes quickly across Idaho. KLWS sits at 1,442 ft, while KDIJ is at 6,257 ft and the highest public-use field is 4D2 at 8,262 ft. A runway that looks generous on paper may not deliver sea-level performance. Calculate takeoff distance, climb rate and service ceiling margins before committing to mountain departures.
North Idaho offers strong non-towered options such as KCOE, KSZT, S76 and D28. KCOE and KSZT both list ILS capability, which is useful when ceilings lower around the lakes and valleys. S76 lists the state's longest runway at 15,000 ft. D28 lists 10,000 ft. Verify current conditions, surface status and local procedures before treating runway length as the only planning factor.
Southern and eastern Idaho include several long-runway towered airports. KPIH has 9,059 ft, KIDA has 9,002 ft and KTWF has 8,704 ft. These are useful IFR, training and diversion fields across higher terrain. KAOC adds a non-towered option near Arco with a 6,610 ft runway at 5,335 ft, which still demands density altitude planning.
Anecdotes
S76 (BROOKS) near Coeur d'Alene lists Idaho's longest runway at 15,000 ft. It is also non-towered, which makes it stand out against the state's towered airline and regional fields.
4D2 (HOODOO MEADOWS) is the highest public-use airport in Idaho at 8,262 ft. That elevation puts density altitude and climb performance at the center of any go or no-go decision.
KBOI (BOISE AIR TRML/GOWEN FLD) has the most runways of any Idaho airport in the provided data, with three. It also lists ILS capability and three FBOs.
Service
Ranked by services count, fuel availability, hours and host airport.
Weather
Idaho weather is dominated by terrain, elevation and season. Winter brings icing risk, low ceilings and obscured ridgelines. Summer creates high density altitude at fields such as KSUN, KDIJ and KAOC. Wildfire smoke can reduce visibility across valleys. Winds can accelerate through passes and along terrain, producing turbulence or downdrafts near ridges. Always compare the airport forecast with winds aloft and terrain clearance along the route.
Training
Idaho training works best when you mix environments. Use KBOI for towered procedures, larger-airport sequencing and ILS work. KPIH, KIDA and KTWF add long-runway towered options at higher elevations. KCOE and KSZT are useful non-towered ILS airports. That combination builds radio discipline, IFR proficiency and performance awareness.
Fuel prices
Live from FBO postings · refreshed hourly
FAQ
KBOI (BOISE AIR TRML/GOWEN FLD) is the primary Idaho airport in this dataset. It is towered, has ILS capability, three runways, a 10,000 ft longest runway and three FBOs. For a cross-country pilot, that means the best combination of runway capacity, services and IFR infrastructure in the state. It is also the field most likely to feel like a busy terminal environment compared with Idaho's many non-towered airports.
Good training choices depend on the lesson. KBOI gives students tower work, larger-airport procedures and ILS approaches. KPIH (POCATELLO RGNL), KIDA (IDAHO FALLS RGNL) and KTWF (JOSLIN FLD/MAGIC VALLEY RGNL) are also towered ILS airports with long runways. KCOE (COEUR D'ALENE) is useful for non-towered IFR practice because it has an ILS, a 7,400 ft runway and an FBO.
Yes. Idaho has high terrain, high field elevations and many backcountry-style operating environments. KSUN (FRIEDMAN MEML) is at 5,320 ft, KDIJ (DRIGGS/REED MEML) is at 6,257 ft and KAOC (ARCO-BUTTE COUNTY) is at 5,335 ft. The highest public-use field in the state is 4D2 (HOODOO MEADOWS) at 8,262 ft. Density altitude, climb performance and winds aloft are central planning items.
Fuel planning is important because Idaho has 129 public-use airports but only 48 FBOs in the aggregate data. Top airports with FBOs include KBOI, KPIH, KIDA, KTWF, KLWS, KSUN, KCOE, KSZT, KDIJ and KAOC. Named fuel providers in the data include Jackson Jet Center and Western Aircraft at KBOI, Aero Mark at KIDA, Hillcrest Aircraft Company at KLWS and StanCraft Jet Center at KCOE.
For paved-airport fly-ins, North Idaho has several useful choices. KCOE (COEUR D'ALENE) is non-towered with an ILS, 7,400 ft runway and FBO. KSZT (SANDPOINT) is also non-towered with an ILS, a 5,501 ft runway and an FBO. D28 (TANGLEFOOT) near Cavanaugh Bay lists a 10,000 ft runway at 2,438 ft. Check the Chart Supplement for current surface notes, services and local procedures.
Expect strong seasonal contrasts. Winter can bring low ceilings, icing potential and obscured terrain. Summer brings density altitude at fields such as KDIJ, KSUN and KAOC. Smoke can reduce visibility during wildfire season. Wind matters near valleys, ridges and passes. Idaho also has only six towered airports in the aggregate data, so pilots should be comfortable with CTAF discipline at non-towered fields.
