Nonstop flight route between Marathon, Florida, United States and Impfondo, Republic of the Congo:
Departure Airport:
(24°43'33"N by 81°3'5"W)
Arrival Airport:
(1°35'21"N by 18°2'42"E)
Distance from MTH to ION:
6,742.26 miles (10,850.59 km)
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Jump to:
- About this route
- MTH Airport Information
- ION Airport Information
- Facts about MTH
- Facts about ION
- Map of Nearest Airports to MTH
- List of Nearest Airports to MTH
- Map of Furthest Airports from MTH
- List of Furthest Airports from MTH
- Map of Nearest Airports to ION
- List of Nearest Airports to ION
- Map of Furthest Airports from ION
- List of Furthest Airports from ION
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Impfondo Airport (ION), Impfondo, Republic of the Congo would travel a Great Circle distance of 6,742 miles (or 10,851 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 large distance between Florida Keys Marathon Airport and Impfondo Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Florida Keys Marathon Airport and Impfondo Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | MTH / KMTH |
| Airport Name: | Florida Keys Marathon Airport |
| Location: | Marathon, Florida, United States |
| GPS Coordinates: | 24°43'33"N by 81°3'5"W |
| Operator/Owner: | Monroe County |
| Airport Type: | Public |
| Elevation: | 7 feet (2 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from MTH |
| More Information: | MTH Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | ION / FCOI |
| Airport Name: | Impfondo Airport |
| Location: | Impfondo, Republic of the Congo |
| GPS Coordinates: | 1°35'21"N by 18°2'42"E |
| Area Served: | Impfondo, Republic of the Congo |
| Elevation: | 1099 feet (335 meters) |
| View all routes: | Routes from ION |
| More Information: | ION Maps & Info |
Facts about Florida Keys Marathon Airport (MTH):
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- On October 4, 2008, Continental Airlines announced it would begin commercial service to Marathon Airport via a Cape Air codeshare to Southwest Florida International Airport in Fort Myers, with TSA security clearance to occur once on the ground in Fort Myers, if connecting to another flight.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- Marathon Airport was originally constructed by the United States Navy in the early 1940s as Outlying Field Marathon, an auxiliary airfield to Naval Air Station Key West.
- The furthest airport from Florida Keys Marathon Airport (MTH) is Cocos (Keeling) Island Airport (CCK), which is located 11,560 miles (18,603 kilometers) away in Cocos Islands, Australia.
- Because of Florida Keys Marathon Airport's relatively low elevation of 7 feet, planes can take off or land at Florida Keys Marathon 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.
Facts about Impfondo Airport (ION):
- The closest airport to Impfondo Airport (ION) is Bétou Airport (BTB), which is located 106 miles (170 kilometers) NNE of ION.
- The furthest airport from Impfondo Airport (ION) is Cassidy International Airport (CXI), which is nearly antipodal to Impfondo Airport (meaning Impfondo Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,034 miles (19,367 kilometers) away in Christmas Island, Kiribati.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.36 miles (66.56 km) WSW | NAS Key West (NQX) | Boca Chica Key, Florida, United States |     |
| 2 | 45.99 miles (74.02 km) WSW | Key West International Airport (EYW) | Key West, Florida, United States | |
| 3 | 63.47 miles (102.14 km) NE | Ocean Reef Club Airport (OCA) | Key Largo, Florida, United States | |
| 4 | 67.22 miles (108.19 km) NE | Homestead Air Reserve Base (HST) | Homestead, Florida, United States | |
| 5 | 74.51 miles (119.91 km) NNE | Kendall-Tamiami Executive Airport (TMB) | Miami, Florida, United States | |
| 6 | 79.05 miles (127.22 km) N | Dade-Collier Training and Transition Airport (TNT) | Miami, Florida, United States | |
| 7 | 87.73 miles (141.19 km) NNE | Miami International Airport (MIA) | Miami, Florida, United States | |
| 8 | 91.20 miles (146.77 km) NE | Miami Seaplane Base (MPB) | Watson Island, Miami-Dade County, Florida, United States | |
| 9 | 94.84 miles (152.62 km) NNE | Opa-locka Executive Airport (OPF) | Miami, Florida, United States | |
| 10 | 95.86 miles (154.28 km) NNW | Marco Island Airport (MRK) | Marco Island, Florida, United States | |
| 11 | 101.59 miles (163.50 km) NNE | North Perry Airport (HWO) | Hollywood, Florida, United States | |
| 12 | 108.42 miles (174.48 km) NNW | Naples Municipal Airport (APF) | Naples, Florida, United States | |
| 13 | 108.62 miles (174.81 km) NNE | Fort Lauderdale–Hollywood International Airport (FLL) | Fort Lauderdale / Hollywood, Florida, United States | |
| 14 | 111.85 miles (180.00 km) S | Kawama Airport (VRO) | Varadero, Matanzas Province, Cuba | |
| 15 | 115.54 miles (185.94 km) NNE | Fort Lauderdale Executive Airport (FXE) | Fort Lauderdale, Florida, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,559.55 miles (18,603.24 km) S | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 11,520.04 miles (18,539.67 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 3 | 11,513.73 miles (18,529.50 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 4 | 11,466.50 miles (18,453.50 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 5 | 11,462.60 miles (18,447.22 km) W | RAAF Learmonth (LEA) | Exmouth, Western Australia, Australia | |
| 6 | 11,425.68 miles (18,387.81 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 7 | 11,381.92 miles (18,317.38 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 8 | 11,378.58 miles (18,312.00 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 11,356.02 miles (18,275.70 km) W | Barrow Island Airport (BWB) | Barrow Island, Western Australia, Australia | |
| 10 | 11,355.74 miles (18,275.25 km) SSW | Christmas Island Airport (XCH) | Christmas Island, Australia | |
| 11 | 11,342.09 miles (18,253.27 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 12 | 11,311.49 miles (18,204.03 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 13 | 11,290.61 miles (18,170.43 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 11,289.97 miles (18,169.40 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 11,276.84 miles (18,148.28 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 105.69 miles (170.09 km) NNE | Bétou Airport (BTB) | Betou, Republic of the Congo | |
| 2 | 109.57 miles (176.33 km) S | Mbandaka Airport (MDK) | Mbandaka, Democratic Republic of the Congo | |
| 3 | 123.06 miles (198.05 km) ESE | Basankusu Airport (BSU) | Basankusu, Democratic Republic of the Congo | |
| 4 | 196.82 miles (316.75 km) N | Bangui M'Poko International Airport (BGF) | Bangui, Central African Republic | |
| 5 | 203.10 miles (326.85 km) WSW | Makoua Airport (MKJ) | Makoua, Republic of the Congo | |
| 6 | 205.96 miles (331.47 km) SW | Owando Airport (FTX) | Owando, Republic of the Congo | |
| 7 | 220.12 miles (354.26 km) SSE | Basango Mboliasa Airport (KRZ) | Kiri, Democratic Republic of the Congo | |
| 8 | 234.90 miles (378.04 km) ESE | Boende Airport (BNB) | Boende, Democratic Republic of the Congo | |
| 9 | 239.38 miles (385.24 km) NW | Berbérati Airport (BBT) | Berbérati, Central African Republic | |
| 10 | 241.72 miles (389.00 km) E | Lisala Airport (LIQ) | Lisala, Democratic Republic of the Congo | |
| 11 | 243.54 miles (391.95 km) SW | Oyo Ollombo Airport (OLL) | Oyo, Republic of the Congo, Republic of the Congo | |
| 12 | 244.93 miles (394.17 km) S | Inongo Airport (INO) | Inongo, Democratic Republic of the Congo | |
| 13 | 255.67 miles (411.47 km) N | Bossembélé Airport (BEM) | Bossembélé, Central African Republic | |
| 14 | 258.17 miles (415.49 km) SW | Boundji Airport (BOE) | Boundji, Republic of the Congo | |
| 15 | 268.74 miles (432.49 km) WSW | Kelle Airport (KEE) | Kelle, Republic of the Congo | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,034.00 miles (19,366.80 km) NW | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,825.86 miles (19,031.83 km) S | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 3 | 11,758.70 miles (18,923.75 km) E | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 4 | 11,426.23 miles (18,388.69 km) SSE | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 5 | 11,422.43 miles (18,382.58 km) SSE | Tau Airport (TAV) | Tau, American Samoa | |
| 6 | 11,419.50 miles (18,377.85 km) SSE | Ofu Airport (OFU) | Ofu, American Samoa | |
| 7 | 11,375.96 miles (18,307.79 km) SE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 8 | 11,357.64 miles (18,278.31 km) SE | Fagali'i Airport (FGI) | Apia, Samoa | |
| 9 | 11,347.24 miles (18,261.57 km) SE | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 10 | 11,340.97 miles (18,251.48 km) SE | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 11 | 11,336.73 miles (18,244.66 km) SE | Asau Airport (AAU) | Asau, Samoa | |
| 12 | 11,217.19 miles (18,052.27 km) SSW | Maupiti Airport (MAU) | Maupiti, Leeward Islands, French Polynesia | |
| 13 | 11,197.81 miles (18,021.08 km) SSW | Bora Bora Airport (BOB) | Bora Bora, French Polynesia | |
| 14 | 11,171.90 miles (17,979.39 km) SE | Wallis Island (WLS) | Wallis and Futuna Islands | |
| 15 | 11,155.81 miles (17,953.50 km) SW | Huahine – Fare Airport (HUH) | Huahine, Society Islands, French Polynesia | |