About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Bob Maxwell Field (Oceanside Municipal Airport) (OCN), Oceanside, California, United States would travel a Great Circle distance of 967 miles (or 1,557 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 Bob Maxwell Field (Oceanside Municipal 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: OCN / KOKB
Airport Names:
  1. Bob Maxwell Field (Oceanside Municipal Airport)
  2. OKB
Location: Oceanside, California, United States
GPS Coordinates: 33°13'5"N by 117°21'5"W
Area Served: Northern San Diego County
Operator/Owner: City of Oceanside, Airport Property Ventures
Airport Type: Public
Elevation: 28 feet (9 meters)
# of Runways: 1
View all routes: Routes from OCN
More Information: OCN Maps & Info

Facts about Helena Regional Airport (HLN):

  • 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 closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.

Facts about Bob Maxwell Field (Oceanside Municipal Airport) (OCN):

  • The furthest airport from Bob Maxwell Field (Oceanside Municipal Airport) (OCN) is Sir Gaëtan Duval Airport (RRG), which is located 11,506 miles (18,517 kilometers) away in Rodrigues Island, Mauritius.
  • The closest airport to Bob Maxwell Field (Oceanside Municipal Airport) (OCN) is McClellan–Palomar Airport (CLD), which is located only 7 miles (12 kilometers) SSE of OCN.
  • Bob Maxwell Field (Oceanside Municipal Airport) (OCN) currently has only 1 runway.
  • Because of Bob Maxwell Field (Oceanside Municipal Airport)'s relatively low elevation of 28 feet, planes can take off or land at Bob Maxwell Field (Oceanside Municipal 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.
  • In addition to being known as "Bob Maxwell Field (Oceanside Municipal Airport)", another name for OCN is "OKB".

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 Bob Maxwell Field (Oceanside Municipal Airport):

List of Nearest Airports to Bob Maxwell Field (Oceanside Municipal Airport):

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
17.45 miles (11.99 km) SSEMcClellan–Palomar Airport (CLD)Carlsbad, California, United StatesView McClellan–Palomar Airport on a map Set CLD as destination Airport Set CLD as destination Airport Get more information about McClellan–Palomar Airport
227.08 miles (43.58 km) SSEMCAS Miramar, (NKX)San Diego, California, United StatesView MCAS Miramar, on a map Set NKX as destination Airport Set NKX as destination Airport Get more information about MCAS Miramar,
330.38 miles (48.90 km) SSEMontgomery Field (MYF)San Diego, California, United StatesView Montgomery Field on a map Set MYF as destination Airport Set MYF as destination Airport Get more information about Montgomery Field
434.76 miles (55.94 km) SSESan Diego International Airport (SAN)San Diego, California, United StatesView San Diego International Airport on a map Set SAN as destination Airport Set SAN as destination Airport Get more information about San Diego International Airport
534.86 miles (56.10 km) SEGillespie Field (SEE)San Diego / El Cajon, California, United StatesView Gillespie Field on a map Set SEE as destination Airport Set SEE as destination Airport Get more information about Gillespie Field
636.71 miles (59.08 km) SSENAS North Island (NZY)San Diego, California, United StatesView NAS North Island on a map Set NZY as destination Airport Set NZY as destination Airport Get more information about NAS North Island
738.48 miles (61.93 km) NWMCAS El Toro (NZJ)Santa Ana, California, United StatesView MCAS El Toro on a map Set NZJ as destination Airport Set NZJ as destination Airport Get more information about MCAS El Toro
840.37 miles (64.96 km) NNEHemet-Ryan AirportRyan Field (HMT)Hemet, California, United StatesView Hemet-Ryan AirportRyan Field on a map Set HMT as destination Airport Set HMT as destination Airport Get more information about Hemet-Ryan AirportRyan Field
943.44 miles (69.92 km) NWJohn Wayne Airport (SNA)Santa Ana, California, United StatesView John Wayne Airport on a map Set SNA as destination Airport Set SNA as destination Airport Get more information about John Wayne Airport
1046.08 miles (74.16 km) NMarch Air Reserve Base (RIV)Riverside, California, United StatesView March Air Reserve Base on a map Set RIV as destination Airport Set RIV as destination Airport Get more information about March Air Reserve Base
1147.33 miles (76.17 km) SSENaval Outlying Landing Field Imperial Beach (NRS)Imperial Beach, California, United StatesView Naval Outlying Landing Field Imperial Beach on a map Set NRS as destination Airport Set NRS as destination Airport Get more information about Naval Outlying Landing Field Imperial Beach
1249.55 miles (79.74 km) SSEBrown Field Municipal Airport (SDM)San Diego, California, United StatesView Brown Field Municipal Airport on a map Set SDM as destination Airport Set SDM as destination Airport Get more information about Brown Field Municipal Airport
1350.99 miles (82.06 km) NRiverside Municipal Airport (RAL)Riverside, California, United StatesView Riverside Municipal Airport on a map Set RAL as destination Airport Set RAL as destination Airport Get more information about Riverside Municipal Airport
1451.76 miles (83.30 km) SSETijuana International Airport (TIJ)Tijuana, Baja California, MexicoView Tijuana International Airport on a map Set TIJ as destination Airport Set TIJ as destination Airport Get more information about Tijuana International Airport
1553.37 miles (85.88 km) NFlabob Airport (RIR)Riverside/Rubidoux, California, United StatesView Flabob Airport on a map Set RIR as destination Airport Set RIR as destination Airport Get more information about Flabob Airport

Map of Furthest Airports from Bob Maxwell Field (Oceanside Municipal Airport):

List of Furthest Airports from Bob Maxwell Field (Oceanside Municipal Airport):

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,505.73 miles (18,516.63 km) SSir 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
211,503.49 miles (18,513.02 km) SSEPierrefonds 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
311,502.06 miles (18,510.73 km) SSESir 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
411,479.32 miles (18,474.13 km) SSERoland 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
511,335.79 miles (18,243.13 km) ESETôlanaro 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
611,230.80 miles (18,074.17 km) SEMananjary 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
711,206.75 miles (18,035.46 km) ESEAmpanihy 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
811,185.97 miles (18,002.02 km) SEFianarantsoa 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
911,108.65 miles (17,877.59 km) SEToamasino 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
1011,068.92 miles (17,813.65 km) SEIvato 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
1111,066.51 miles (17,809.78 km) SESainte Marie Airport (SMS)Île Sainte-Marie, MadagascarView Sainte Marie Airport on a map Set SMS as destination Airport Set SMS as destination Airport Get more information about Sainte Marie Airport
1211,050.83 miles (17,784.53 km) ESEManja 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
1311,028.20 miles (17,748.12 km) ESEAndavadoaka 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
1411,018.47 miles (17,732.46 km) ESEMorombe 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
1511,018.31 miles (17,732.21 km) SEMiandrivazo 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