About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Napa County Airport (APC), Napa, California, United States would travel a Great Circle distance of 781 miles (or 1,257 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Helena Regional Airport and Napa County Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

IATA / ICAO Codes: HLN / KHLN
Airport Names:
  1. Helena Regional Airport
  2. Helena Army Airfield
Location: Helena, Montana, United States
GPS Coordinates: 46°36'24"N by 111°58'58"W
Area Served: Helena, Montana
Operator/Owner: Helena Regional Airport Authority
Airport Type: Public
Elevation: 3877 feet (1,182 meters)
# of Runways: 3
View all routes: Routes from HLN
More Information: HLN Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: APC / KAPC
Airport Names:
  1. Napa County Airport
  2. Napa Army Airfield
Location: Napa, California, United States
GPS Coordinates: 38°12'47"N by 122°16'50"W
Operator/Owner: Napa County
Airport Type: Public Public Works
Elevation: 35 feet (11 meters)
# of Runways: 3
View all routes: Routes from APC
More Information: APC Maps & Info

Facts about Helena Regional Airport (HLN):

  • The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
  • Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
  • In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
  • Helena Regional Airport (HLN) has 3 runways.
  • The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
  • The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.

Facts about Napa County Airport (APC):

  • In addition to being known as "Napa County Airport", another name for APC is "Napa Army Airfield".
  • Because of Napa County Airport's relatively low elevation of 35 feet, planes can take off or land at Napa County Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
  • After World War II the property was deeded to Napa County by the War Assets Administration for civil use.
  • The closest airport to Napa County Airport (APC) is Marin County Airport (NOT), which is located only 16 miles (25 kilometers) WSW of APC.
  • Napa County Airport (APC) has 3 runways.
  • The furthest airport from Napa County Airport (APC) is Tôlanaro Airport (FTU), which is located 11,330 miles (18,233 kilometers) away in Tôlanaro, Madagascar.

Map of Nearest Airports to Helena Regional Airport:

List of Nearest Airports to Helena Regional Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
151.31 miles (82.58 km) SSWBert Mooney Airport (BTM)Butte, Montana, United StatesView Bert Mooney Airport on a map Set BTM as origin Airport Set BTM as destination Airport Get more information about Bert Mooney Airport
267.05 miles (107.90 km) NNEGreat Falls International Airport (GTF)Great Falls, Montana, United StatesView Great Falls International Airport on a map Set GTF as origin Airport Set GTF as destination Airport Get more information about Great Falls International Airport
369.72 miles (112.21 km) SEBozeman Yellowstone International Airport (BZN)Bozeman, Montana, United StatesView Bozeman Yellowstone International Airport on a map Set BZN as origin Airport Set BZN as destination Airport Get more information about Bozeman Yellowstone International Airport
472.47 miles (116.63 km) NNEMalmstrom Air Force Base (GFA)Great Falls, Montana, United StatesView Malmstrom Air Force Base on a map Set GFA as origin Airport Set GFA as destination Airport Get more information about Malmstrom Air Force Base
596.56 miles (155.40 km) SEMission Field (LVM)Livingston, Montana, United StatesView Mission Field on a map Set LVM as origin Airport Set LVM as destination Airport Get more information about Mission Field
697.30 miles (156.59 km) SSWDillon Airport (DLN)Dillon, Montana, United StatesView Dillon Airport on a map Set DLN as origin Airport Set DLN as destination Airport Get more information about Dillon Airport
7102.03 miles (164.20 km) WNWMissoula International Airport (MSO)Missoula, Montana, United StatesView Missoula International Airport on a map Set MSO as origin Airport Set MSO as destination Airport Get more information about Missoula International Airport
8122.80 miles (197.63 km) ENELewistown Municipal Airport (LWT)Lewistown, Montana, United StatesView Lewistown Municipal Airport on a map Set LWT as origin Airport Set LWT as destination Airport Get more information about Lewistown Municipal Airport
9133.72 miles (215.20 km) NShelby Airport (SBX)Shelby, Montana, United StatesView Shelby Airport on a map Set SBX as origin Airport Set SBX as destination Airport Get more information about Shelby Airport
10137.25 miles (220.89 km) SWLemhi County Airport (SMN)Salmon, Idaho, United StatesView Lemhi County Airport on a map Set SMN as origin Airport Set SMN as destination Airport Get more information about Lemhi County Airport
11138.97 miles (223.65 km) SSEYellowstone Airport (WYS)West Yellowstone, Montana, United StatesView Yellowstone Airport on a map Set WYS as origin Airport Set WYS as destination Airport Get more information about Yellowstone Airport
12139.51 miles (224.52 km) NCut Bank Municipal AirportCut Bank Army Air Field (CTB)Cut Bank, Montana, United StatesView Cut Bank Municipal AirportCut Bank Army Air Field on a map Set CTB as origin Airport Set CTB as destination Airport Get more information about Cut Bank Municipal AirportCut Bank Army Air Field
13158.54 miles (255.14 km) NWGlacier Park International Airport (FCA)Kalispell, Montana, United StatesView Glacier Park International Airport on a map Set FCA as origin Airport Set FCA as destination Airport Get more information about Glacier Park International Airport
14163.70 miles (263.45 km) ERoundup Airport (RPX)Roundup, Montana, United StatesView Roundup Airport on a map Set RPX as origin Airport Set RPX as destination Airport Get more information about Roundup Airport
15169.14 miles (272.20 km) NEHavre City-County Airport (HVR)Havre, Montana, United StatesView Havre City-County Airport on a map Set HVR as origin Airport Set HVR as destination Airport Get more information about Havre City-County Airport

Map of Furthest Airports from Helena Regional Airport:

List of Furthest Airports from Helena Regional Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,563.08 miles (16,999.59 km) SSir Gaëtan Duval Airport (RRG)Rodrigues Island, MauritiusView Sir Gaëtan Duval Airport on a map Set RRG as origin Airport Set RRG as destination Airport Get more information about Sir Gaëtan Duval Airport
210,552.15 miles (16,981.99 km) SSEPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as origin Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
310,548.64 miles (16,976.36 km) SETôlanaro Airport (FTU)Tôlanaro, MadagascarView Tôlanaro Airport on a map Set FTU as origin Airport Set FTU as destination Airport Get more information about Tôlanaro Airport
410,536.59 miles (16,956.96 km) SSESir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as origin Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
510,525.82 miles (16,939.62 km) SSERoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as origin Airport Set RUN as destination Airport Get more information about Roland Garros Airport
610,452.26 miles (16,821.24 km) SEAmpanihy Airport (AMP)Ampanihy, MadagascarView Ampanihy Airport on a map Set AMP as origin Airport Set AMP as destination Airport Get more information about Ampanihy Airport
710,363.52 miles (16,678.43 km) SEMananjary Airport (MNJ)Mananjary, MadagascarView Mananjary Airport on a map Set MNJ as origin Airport Set MNJ as destination Airport Get more information about Mananjary Airport
810,340.10 miles (16,640.74 km) SEFianarantsoa Airport (WFI)Fianarantsoa, MadagascarView Fianarantsoa Airport on a map Set WFI as origin Airport Set WFI as destination Airport Get more information about Fianarantsoa Airport
910,252.07 miles (16,499.06 km) SEAndavadoaka Airport (DVD)Andavadoaka, Toliara province, Atsimo-Andrefana region, MadagascarView Andavadoaka Airport on a map Set DVD as origin Airport Set DVD as destination Airport Get more information about Andavadoaka Airport
1010,247.66 miles (16,491.97 km) SEManja Airport (MJA)Manja, Menabe, MadagascarView Manja Airport on a map Set MJA as origin Airport Set MJA as destination Airport Get more information about Manja Airport
1110,235.05 miles (16,471.68 km) SEMorombe Airport (MXM)Morombe, MadagascarView Morombe Airport on a map Set MXM as origin Airport Set MXM as destination Airport Get more information about Morombe Airport
1210,200.52 miles (16,416.11 km) SEToamasino Airport (TMM)Toamasina, MadagascarView Toamasino Airport on a map Set TMM as origin Airport Set TMM as destination Airport Get more information about Toamasino Airport
1310,189.58 miles (16,398.51 km) SEIvato International Airport (TNR)Antananarivo, MadagascarView Ivato International Airport on a map Set TNR as origin Airport Set TNR as destination Airport Get more information about Ivato International Airport
1410,174.40 miles (16,374.07 km) SEMiandrivazo Airport (ZVA)Miandrivazo, MadagascarView Miandrivazo Airport on a map Set ZVA as origin Airport Set ZVA as destination Airport Get more information about Miandrivazo Airport
1510,162.80 miles (16,355.40 km) ESEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as origin Airport Set MGH as destination Airport Get more information about Margate Airport

Map of Nearest Airports to Napa County Airport:

List of Nearest Airports to Napa County Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
115.71 miles (25.29 km) WSWMarin County Airport (NOT)Novato, California, United StatesView Marin County Airport on a map Set NOT as destination Airport Set NOT as destination Airport Get more information about Marin County Airport
219.47 miles (31.34 km) ETravis Air Force Base Fairfield-Suisun Army Airfield (SUU)Fairfield, California, United StatesView Travis Air Force Base Fairfield-Suisun Army Airfield on a map Set SUU as destination Airport Set SUU as destination Airport Get more information about Travis Air Force Base Fairfield-Suisun Army Airfield
319.66 miles (31.64 km) SEBuchanan FieldConcord Army Air Base (CCR)Concord, California, United StatesView Buchanan FieldConcord Army Air Base on a map Set CCR as destination Airport Set CCR as destination Airport Get more information about Buchanan FieldConcord Army Air Base
420.70 miles (33.32 km) ENENut Tree Airport (VCB)Vacaville, California, United StatesView Nut Tree Airport on a map Set VCB as destination Airport Set VCB as destination Airport Get more information about Nut Tree Airport
534.14 miles (54.94 km) SOakland International Airport (OAK)Oakland (near San Francisco), California, United StatesView Oakland International Airport on a map Set OAK as destination Airport Set OAK as destination Airport Get more information about Oakland International Airport
635.33 miles (56.86 km) NWCharles M. Schulz–Sonoma County Airport (STS)Santa Rosa, California, United StatesView Charles M. Schulz–Sonoma County Airport on a map Set STS as destination Airport Set STS as destination Airport Get more information about Charles M. Schulz–Sonoma County Airport
739.27 miles (63.19 km) SSEHayward Executive Airport (HWD)Hayward, California, United StatesView Hayward Executive Airport on a map Set HWD as destination Airport Set HWD as destination Airport Get more information about Hayward Executive Airport
841.38 miles (66.60 km) SSan Francisco International Airport (SFO)San Francisco, California, United StatesView San Francisco International Airport on a map Set SFO as destination Airport Set SFO as destination Airport Get more information about San Francisco International Airport
943.80 miles (70.50 km) SELivermore Municipal Airport (LVK)Livermore, California, United StatesView Livermore Municipal Airport on a map Set LVK as destination Airport Set LVK as destination Airport Get more information about Livermore Municipal Airport
1047.40 miles (76.29 km) ENESacramento Executive Airport (SAC)Sacramento, California, United StatesView Sacramento Executive Airport on a map Set SAC as destination Airport Set SAC as destination Airport Get more information about Sacramento Executive Airport
1149.83 miles (80.19 km) SSWHalf Moon Bay AirportHalf Moon Bay Flight Strip (HAF)Half Moon Bay, California, United StatesView Half Moon Bay AirportHalf Moon Bay Flight Strip on a map Set HAF as destination Airport Set HAF as destination Airport Get more information about Half Moon Bay AirportHalf Moon Bay Flight Strip
1250.04 miles (80.53 km) NESacramento International Airport (SMF)Sacramento, California, United StatesView Sacramento International Airport on a map Set SMF as destination Airport Set SMF as destination Airport Get more information about Sacramento International Airport
1352.74 miles (84.88 km) SPalo Alto Airport of Santa Clara County (PAO)Palo Alto, California, United StatesView Palo Alto Airport of Santa Clara County on a map Set PAO as destination Airport Set PAO as destination Airport Get more information about Palo Alto Airport of Santa Clara County
1456.59 miles (91.07 km) SSEMoffett Federal Airfield (NUQ)Mountain View, California, United StatesView Moffett Federal Airfield on a map Set NUQ as destination Airport Set NUQ as destination Airport Get more information about Moffett Federal Airfield
1557.05 miles (91.82 km) ENESacramento Airport McClellan Airfield (MCC)Sacramento, California, United StatesView Sacramento Airport McClellan Airfield on a map Set MCC as destination Airport Set MCC as destination Airport Get more information about Sacramento Airport McClellan Airfield

Map of Furthest Airports from Napa County Airport:

List of Furthest Airports from Napa County Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,329.75 miles (18,233.42 km) SETôlanaro Airport (FTU)Tôlanaro, MadagascarView Tôlanaro Airport on a map Set FTU as destination Airport Set FTU as destination Airport Get more information about Tôlanaro Airport
211,261.74 miles (18,123.97 km) SPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as destination Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
311,232.69 miles (18,077.22 km) SRoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as destination Airport Set RUN as destination Airport Get more information about Roland Garros Airport
411,232.16 miles (18,076.37 km) SEAmpanihy Airport (AMP)Ampanihy, MadagascarView Ampanihy Airport on a map Set AMP as destination Airport Set AMP as destination Airport Get more information about Ampanihy Airport
511,208.10 miles (18,037.64 km) SSir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as destination Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
611,135.91 miles (17,921.46 km) SSEMananjary Airport (MNJ)Mananjary, MadagascarView Mananjary Airport on a map Set MNJ as destination Airport Set MNJ as destination Airport Get more information about Mananjary Airport
711,117.58 miles (17,891.96 km) SSWSir Gaëtan Duval Airport (RRG)Rodrigues Island, MauritiusView Sir Gaëtan Duval Airport on a map Set RRG as destination Airport Set RRG as destination Airport Get more information about Sir Gaëtan Duval Airport
811,117.31 miles (17,891.53 km) SSEFianarantsoa Airport (WFI)Fianarantsoa, MadagascarView Fianarantsoa Airport on a map Set WFI as destination Airport Set WFI as destination Airport Get more information about Fianarantsoa Airport
911,032.57 miles (17,755.15 km) SEAndavadoaka Airport (DVD)Andavadoaka, Toliara province, Atsimo-Andrefana region, MadagascarView Andavadoaka Airport on a map Set DVD as destination Airport Set DVD as destination Airport Get more information about Andavadoaka Airport
1011,028.82 miles (17,749.11 km) SEManja Airport (MJA)Manja, Menabe, MadagascarView Manja Airport on a map Set MJA as destination Airport Set MJA as destination Airport Get more information about Manja Airport
1111,015.87 miles (17,728.28 km) SEMorombe Airport (MXM)Morombe, MadagascarView Morombe Airport on a map Set MXM as destination Airport Set MXM as destination Airport Get more information about Morombe Airport
1210,960.63 miles (17,639.39 km) SSEIvato International Airport (TNR)Antananarivo, MadagascarView Ivato International Airport on a map Set TNR as destination Airport Set TNR as destination Airport Get more information about Ivato International Airport
1310,959.76 miles (17,637.98 km) SSEToamasino Airport (TMM)Toamasina, MadagascarView Toamasino Airport on a map Set TMM as destination Airport Set TMM as destination Airport Get more information about Toamasino Airport
1410,953.04 miles (17,627.17 km) SSEMiandrivazo Airport (ZVA)Miandrivazo, MadagascarView Miandrivazo Airport on a map Set ZVA as destination Airport Set ZVA as destination Airport Get more information about Miandrivazo Airport
1510,932.82 miles (17,594.62 km) SEBelo sur Tsiribihina Airport (BMD)Belo sur Tsiribihina, MadagascarView Belo sur Tsiribihina Airport on a map Set BMD as destination Airport Set BMD as destination Airport Get more information about Belo sur Tsiribihina Airport