Nonstop flight route between Chicago, Illinois, United States and Helena, Montana, United States:
Departure Airport:
(41°58'42"N by 87°54'16"W)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from ORD to HLN:
1,227.62 miles (1,975.65 km)
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- About this route
- ORD Airport Information
- HLN Airport Information
- Facts about ORD
- Facts about HLN
- Map of Nearest Airports to ORD
- List of Nearest Airports to ORD
- Map of Furthest Airports from ORD
- List of Furthest Airports from ORD
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
About this route:
A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 1,228 miles (or 1,976 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 Chicago O'Hare International Airport and Helena Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ORD / KORD |
| Airport Name: | Chicago O'Hare International Airport |
| Location: | Chicago, Illinois, United States |
| GPS Coordinates: | 41°58'42"N by 87°54'16"W |
| Area Served: | Chicago, Illinois, United States |
| Operator/Owner: | City of Chicago |
| Airport Type: | Public |
| Elevation: | 668 feet (204 meters) |
| # of Runways: | 8 |
| View all routes: | Routes from ORD |
| More Information: | ORD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HLN / KHLN |
| Airport Names: |
|
| 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 |
Facts about Chicago O'Hare International Airport (ORD):
- A$80 million renovation of Concourse G in Terminal 3 designed by Teng & Associates, Inc.
- The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
- Growth was slow at first.
- The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
- United Airlines is the largest airline at O'Hare, carrying over 45% of all passengers passing through the airport.
- Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare International 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.
- Chicago O'Hare International Airport (ORD) has 8 runways.
- All fixed-wing scheduled airline service in Chicago moved from Midway to O'Hare by July 1962.
- 1,057 fatalities have occurred as a result of accidents en route to or from O'Hare.
Facts about Helena Regional Airport (HLN):
- Helena Regional Airport (HLN) has 3 runways.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- 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 is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9.37 miles (15.08 km) N | Chicago Executive Airport (PWK) | Chicago/Prospect Heights/Wheeling, Illinois, United States |     |
| 2 | 15.43 miles (24.84 km) SSE | Chicago Midway International Airport (MDW) | Chicago, Illinois, United States | |
| 3 | 18.34 miles (29.52 km) WSW | DuPage Airport (DPA) | West Chicago, Illinois, United States | |
| 4 | 27.49 miles (44.24 km) SSW | Lewis University Airport (LOT) | Chicago / Romeoville, Illinois, United States | |
| 5 | 30.71 miles (49.42 km) N | Waukegan National Airport (UGN) | Chicago / Waukegan, Illinois, United States | |
| 6 | 32.66 miles (52.55 km) WSW | Chicago/Aurora Municipal Airport (AUZ) | Aurora, Illinois, United States | |
| 7 | 34.77 miles (55.95 km) SSW | Joliet Regional Airport (JOT) | Joliet, Illinois, United States | |
| 8 | 35.62 miles (57.32 km) SE | Gary/Chicago International Airport (GYY) | Gary, Indiana (near Chicago), United States | |
| 9 | 42.64 miles (68.63 km) N | Kenosha Regional Airport (ENW) | Kenosha, Wisconsin, United States | |
| 10 | 54.22 miles (87.26 km) N | John H. Batten Airport (RAC) | Racine, Wisconsin, United States | |
| 11 | 58.80 miles (94.62 km) SE | Porter County Regional Airport (VPZ) | Valparaiso, Indiana, United States | |
| 12 | 58.93 miles (94.84 km) ESE | Michigan City Municipal Airport (MGC) | Michigan City, Indiana, United States | |
| 13 | 62.76 miles (100.99 km) S | Greater Kankakee Airport (IKK) | Kankakee, Illinois, United States | |
| 14 | 62.95 miles (101.31 km) WNW | Chicago Rockford International Airport (RFD) | Rockford, Illinois, United States | |
| 15 | 66.51 miles (107.04 km) ESE | La Porte Municipal Airport (LPO) | La Porte, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,071.27 miles (17,817.44 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,047.86 miles (17,779.76 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,031.37 miles (17,753.23 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,023.12 miles (17,739.96 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,977.81 miles (17,667.03 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,969.87 miles (17,654.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,964.92 miles (17,646.28 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,954.62 miles (17,629.71 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,936.61 miles (17,600.72 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,930.34 miles (17,590.63 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,878.99 miles (17,508.00 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,846.89 miles (17,456.33 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,837.23 miles (17,440.79 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,827.50 miles (17,425.13 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,786.85 miles (17,359.71 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 51.31 miles (82.58 km) SSW | Bert Mooney Airport (BTM) | Butte, Montana, United States | |
| 2 | 67.05 miles (107.90 km) NNE | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 3 | 69.72 miles (112.21 km) SE | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 4 | 72.47 miles (116.63 km) NNE | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 5 | 96.56 miles (155.40 km) SE | Mission Field (LVM) | Livingston, Montana, United States | |
| 6 | 97.30 miles (156.59 km) SSW | Dillon Airport (DLN) | Dillon, Montana, United States | |
| 7 | 102.03 miles (164.20 km) WNW | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| 8 | 122.80 miles (197.63 km) ENE | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 9 | 133.72 miles (215.20 km) N | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 10 | 137.25 miles (220.89 km) SW | Lemhi County Airport (SMN) | Salmon, Idaho, United States | |
| 11 | 138.97 miles (223.65 km) SSE | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 12 | 139.51 miles (224.52 km) N | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 13 | 158.54 miles (255.14 km) NW | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| 14 | 163.70 miles (263.45 km) E | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 15 | 169.14 miles (272.20 km) NE | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,563.08 miles (16,999.59 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,552.15 miles (16,981.99 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,548.64 miles (16,976.36 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,536.59 miles (16,956.96 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,525.82 miles (16,939.62 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,452.26 miles (16,821.24 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,363.52 miles (16,678.43 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,340.10 miles (16,640.74 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,252.07 miles (16,499.06 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,247.66 miles (16,491.97 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,235.05 miles (16,471.68 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,200.52 miles (16,416.11 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,189.58 miles (16,398.51 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,174.40 miles (16,374.07 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,162.80 miles (16,355.40 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |