Nonstop flight route between Changhai, China and Metlakatla, Annette Island, Alaska, United States:
Departure Airport:
(39°15'59"N by 122°40'0"E)
Arrival Airport:
(55°7'51"N by 131°34'41"W)
Distance from CNI to MTM:
4,593.14 miles (7,391.93 km)
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- About this route
- CNI Airport Information
- MTM Airport Information
- Facts about CNI
- Facts about MTM
- Map of Nearest Airports to CNI
- List of Nearest Airports to CNI
- Map of Furthest Airports from CNI
- List of Furthest Airports from CNI
- Map of Nearest Airports to MTM
- List of Nearest Airports to MTM
- Map of Furthest Airports from MTM
- List of Furthest Airports from MTM
About this route:
A direct, nonstop flight between Changhai Airport (CNI), Changhai, China and Metlakatla Seaplane Base (MTM), Metlakatla, Annette Island, Alaska, United States would travel a Great Circle distance of 4,593 miles (or 7,392 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 Changhai Airport and Metlakatla Seaplane Base, 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 Changhai Airport and Metlakatla Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CNI / ZYCH |
| Airport Names: |
|
| Location: | Changhai, China |
| GPS Coordinates: | 39°15'59"N by 122°40'0"E |
| Airport Type: | Public |
| View all routes: | Routes from CNI |
| More Information: | CNI Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | MTM / PAMM |
| Airport Name: | Metlakatla Seaplane Base |
| Location: | Metlakatla, Annette Island, Alaska, United States |
| GPS Coordinates: | 55°7'51"N by 131°34'41"W |
| Area Served: | Metlakatla, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from MTM |
| More Information: | MTM Maps & Info |
Facts about Changhai Airport (CNI):
- The closest airport to Changhai Airport (CNI) is Dalian Zhoushuizi International Airport (DLC), which is located 64 miles (103 kilometers) WSW of CNI.
- The furthest airport from Changhai Airport (CNI) is Miramar Airport (MJR), which is nearly antipodal to Changhai Airport (meaning Changhai Airport is almost on the exact opposite side of the Earth from Miramar Airport), and is located 12,359 miles (19,890 kilometers) away in Miramar, Buenos Aires, Argentina.
- In addition to being known as "Changhai Airport", other names for CNI include "长海大长山岛机场" and "Zhǎnghǎi Dàzhǎngshāndǎo Jīchǎng".
Facts about Metlakatla Seaplane Base (MTM):
- The furthest airport from Metlakatla Seaplane Base (MTM) is Port Alfred Airport (AFD), which is located 10,621 miles (17,093 kilometers) away in Port Alfred, South Africa.
- Metlakatla Seaplane Base (MTM) has 2 runways.
- Because of Metlakatla Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Metlakatla Seaplane Base 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.
- Metlakatla Seaplane Base is a state owned, public use seaplane base located in Metlakatla, a community on Annette Island in the Prince of Wales-Hyder Census Area of the U.S.
- The closest airport to Metlakatla Seaplane Base (MTM) is Annette Island Airport (ANN), which is located only 6 miles (10 kilometers) S of MTM.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 63.97 miles (102.95 km) WSW | Dalian Zhoushuizi International Airport (DLC) | Dalian, Liaoning, China |     |
| 2 | 127.41 miles (205.04 km) N | Anshan Teng'ao Airport (AOG) | Anshan, Liaoning, China | |
| 3 | 145.63 miles (234.37 km) S | Weihai Dashuibo Airport (WEH) | Weihai, Shandong, China | |
| 4 | 146.72 miles (236.12 km) SSW | Yantai Laishan International Airport (YNT) | Yantai, Shandong, China | |
| 5 | 152.49 miles (245.41 km) NNW | Jinzhou Xiaolingzi Airport (JNZ) | Jinzhou, Liaoning, China | |
| 6 | 160.71 miles (258.64 km) E | Pyongyang Sunan International Airport (FNJ) | Pyongyang, North Korea | |
| 7 | 163.60 miles (263.28 km) WNW | Qinhuangdao Shanhaiguan Airport (SHP) | Qinhuangdao, Hebei, China | |
| 8 | 169.53 miles (272.82 km) NNE | Shenyang Taoxian International Airport (SHE) | Shenyang, China | |
| 9 | 196.01 miles (315.45 km) NW | Chaoyang Airport (CHG) | Chaoyang, Liaoning, China | |
| 10 | 239.34 miles (385.18 km) ESE | Incheon International Airport (ICN) | Incheon (near Seoul), South Korea | |
| 11 | 242.16 miles (389.72 km) SSW | Qingdao Liuting International Airport (TAO) | Qingdao, Shandong, China | |
| 12 | 251.16 miles (404.21 km) W | Tangshan Sannühe Airport (TVS) | Tangshan, Hebei, China | |
| 13 | 252.49 miles (406.35 km) ESE | Gimpo International Airport (GMP) | Seoul, South Korea | |
| 14 | 252.49 miles (406.35 km) ESE | Gimpo International Airport (SEL) | Seoul, South Korea | |
| 15 | 260.48 miles (419.20 km) NE | Tonghua Sanyuanpu Airport (TNH) | Tonghua, Jilin, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,359.28 miles (19,890.28 km) SSE | Miramar Airport (MJR) | Miramar, Buenos Aires, Argentina | |
| 2 | 12,343.84 miles (19,865.44 km) S | Astor Piazzolla International Airport (MDQ) | Mar del Plata, Buenos Aires Province, Argentina | |
| 3 | 12,340.35 miles (19,859.82 km) ESE | Necochea Airport (NEC) | Necochea, Buenos Aires, Argentina | |
| 4 | 12,295.50 miles (19,787.64 km) S | Villa Gesell Airport (VLG) | Villa Gesell, Buenos Aires, Argentina | |
| 5 | 12,264.44 miles (19,737.66 km) ESE | Tres Arroyos Airport (OYO) | Tres Arroyos, Buenos Aires Province, Argentina | |
| 6 | 12,262.29 miles (19,734.19 km) SE | Tandil Airport (TDL) | Tandil, Argentina | |
| 7 | 12,209.76 miles (19,649.66 km) SE | Olavarría Airport (OVR) | Olavarría, Argentina | |
| 8 | 12,195.47 miles (19,626.65 km) SSE | Las Flores Airport (ELB) | El Banco, Colombia | |
| 9 | 12,174.45 miles (19,592.84 km) E | Comandante Espora Airport (BHI) | Bahía Blanca, Buenos Aires Province, Argentina | |
| 10 | 12,159.80 miles (19,569.24 km) ESE | Brigadier Hector Eduardo Ruiz Airport (CSZ) | Coronel Suárez, Buenos Aires, Argentina | |
| 11 | 12,138.49 miles (19,534.96 km) S | La Plata Airport (LPG) | La Plata, Buenos Aires, Argentina | |
| 12 | 12,122.66 miles (19,509.49 km) SSE | Ministro Pistarini International Airport (EZE) | Ezeiza (near Buenos Aires), Argentina | |
| 13 | 12,122.55 miles (19,509.30 km) SSW | Carrasco/General Cesáreo L. Berisso International Airport (MVD) | Montevideo, Montevideo, Uruguay | |
| 14 | 12,117.39 miles (19,501.01 km) ESE | Gobernador Edgardo Castello Airport (VDM) | Viedma, Argentina | |
| 15 | 12,107.98 miles (19,485.86 km) SSW | Capitán de Corbeta Carlos A. Curbelo International Airport (PDP) | Maldonado/Punta del Este, Maldonado, Uruguay | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 6.13 miles (9.86 km) S | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 2 | 15.12 miles (24.33 km) NNW | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 3 | 16.28 miles (26.20 km) NNW | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 4 | 48.03 miles (77.30 km) WNW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 5 | 49.61 miles (79.84 km) W | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 6 | 53.80 miles (86.58 km) NW | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 7 | 66.24 miles (106.61 km) WNW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 8 | 66.49 miles (107.00 km) WNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 9 | 66.63 miles (107.23 km) W | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 73.87 miles (118.89 km) SE | Prince Rupert Airport (YPR) | Prince Rupert, British Columbia, Canada | |
| 11 | 75.56 miles (121.61 km) SE | Prince Rupert/Seal Cove Water Airport (ZSW) | Prince Rupert, British Columbia, Canada | |
| 12 | 78.32 miles (126.04 km) NW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 13 | 79.35 miles (127.71 km) SSW | Masset Airport (ZMT) | Masset, British Columbia, Canada | |
| 14 | 81.39 miles (130.99 km) NE | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 15 | 81.45 miles (131.09 km) NW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,621.06 miles (17,092.89 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,614.48 miles (17,082.30 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,611.60 miles (17,077.67 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,543.67 miles (16,968.36 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,539.88 miles (16,962.25 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,516.90 miles (16,925.27 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,477.12 miles (16,861.25 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,463.52 miles (16,839.37 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,440.83 miles (16,802.84 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,438.85 miles (16,799.65 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,423.10 miles (16,774.31 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,421.11 miles (16,771.11 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,410.01 miles (16,753.24 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,398.50 miles (16,734.71 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,396.65 miles (16,731.75 km) SSE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |