Nonstop flight route between Port Heiden, Alaska, United States and Christmas Island, Kiribati:
Departure Airport:
(56°57'33"N by 158°37'59"W)
Arrival Airport:
(1°59'9"N by 157°20'58"W)
Distance from PTH to CXI:
3,798.93 miles (6,113.77 km)
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Jump to:
- About this route
- PTH Airport Information
- CXI Airport Information
- Facts about PTH
- Facts about CXI
- Map of Nearest Airports to PTH
- List of Nearest Airports to PTH
- Map of Furthest Airports from PTH
- List of Furthest Airports from PTH
- Map of Nearest Airports to CXI
- List of Nearest Airports to CXI
- Map of Furthest Airports from CXI
- List of Furthest Airports from CXI
About this route:
A direct, nonstop flight between Port Heiden Airport (PTH), Port Heiden, Alaska, United States and Cassidy International Airport (CXI), Christmas Island, Kiribati would travel a Great Circle distance of 3,799 miles (or 6,114 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 Port Heiden Airport and Cassidy International 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 Port Heiden Airport and Cassidy International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | PTH / PAPH |
| Airport Names: |
|
| Location: | Port Heiden, Alaska, United States |
| GPS Coordinates: | 56°57'33"N by 158°37'59"W |
| Area Served: | Port Heiden, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 95 feet (29 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from PTH |
| More Information: | PTH Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | CXI / PLCH |
| Airport Name: | Cassidy International Airport |
| Location: | Christmas Island, Kiribati |
| GPS Coordinates: | 1°59'9"N by 157°20'58"W |
| Area Served: | Kiritimati |
| Operator/Owner: | Government |
| Airport Type: | Public |
| Elevation: | 5 feet (2 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CXI |
| More Information: | CXI Maps & Info |
Facts about Port Heiden Airport (PTH):
- The closest airport to Port Heiden Airport (PTH) is Chignik Fisheries Airport (KCG), which is located 44 miles (71 kilometers) S of PTH.
- Because of Port Heiden Airport's relatively low elevation of 95 feet, planes can take off or land at Port Heiden 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 "Port Heiden Airport", other names for PTH include "Port Heiden Air Force Station" and "Fort Morrow Army Airfield".
- Beginning in 1958 the airport was used to support Port Heiden Air Force Station, a Cold War United States Air Force Distant Early Warning Line radar station.
- The furthest airport from Port Heiden Airport (PTH) is George Airport (GRJ), which is located 10,850 miles (17,462 kilometers) away in George, South Africa.
- Port Heiden Airport (PTH) has 2 runways.
- As per Federal Aviation Administration records, the airport had 919 passenger boardings in calendar year 2008, 964 enplanements in 2009, and 1,037 in 2010.
Facts about Cassidy International Airport (CXI):
- The airport is at an elevation of 5ft above mean sea level.
- The closest airport to Cassidy International Airport (CXI) is Manihiki Island Airport (MHX), which is located 891 miles (1,433 kilometers) SSW of CXI.
- Because of Cassidy International Airport's relatively low elevation of 5 feet, planes can take off or land at Cassidy 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.
- The furthest airport from Cassidy International Airport (CXI) is Ikela Airport (IKL), which is nearly antipodal to Cassidy International Airport (meaning Cassidy International Airport is almost on the exact opposite side of the Earth from Ikela Airport), and is located 12,367 miles (19,903 kilometers) away in Ikela, Democratic Republic of the Congo.
- Cassidy International Airport is an airport located north of Banana, a settlement on Kiritimati in Kiribati.
- Cassidy International Airport (CXI) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 44.35 miles (71.37 km) S | Chignik Fisheries Airport (KCG) | Chignik, Alaska, United States. |     |
| 2 | 44.93 miles (72.32 km) S | Chignik Lagoon Airport (KCL) | Chignik Lagoon, Alaska, United States | |
| 3 | 46.43 miles (74.72 km) NE | Ugashik Bay Airport (UGB) | Pilot Point, Alaska, United States | |
| 4 | 46.69 miles (75.14 km) S | Chignik Bay Seaplane Base (KBW) | Chignik, Alaska, United States. | |
| 5 | 48.95 miles (78.78 km) S | Chignik Lake Airport (KCQ) | Chignik Lake, Alaska, United States | |
| 6 | 58.43 miles (94.03 km) NE | Pilot Point Airport (PIP) | Pilot Point, Alaska, United States | |
| 7 | 60.49 miles (97.35 km) NE | Ugashik Airport (UGS) | Ugashik, Alaska, United States | |
| 8 | 75.46 miles (121.44 km) SSW | Perryville Airport (KPV) | Perryville, Alaska, United States | |
| 9 | 96.70 miles (155.62 km) NNE | Egegik Airport (EGX) | Egegik, Alaska, United States | |
| 10 | 98.71 miles (158.85 km) SW | Port Moller Airport (PML) | Cold Bay, Alaska, United States | |
| 11 | 116.68 miles (187.79 km) WSW | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 12 | 129.57 miles (208.52 km) N | Clarks Point Airport (CLP) | Clarks Point, Alaska, United States | |
| 13 | 134.54 miles (216.52 km) NNE | South Naknek Airport (WSN) | South Naknek, Alaska, United States | |
| 14 | 134.94 miles (217.16 km) SSW | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 15 | 136.14 miles (219.09 km) NNE | Naknek Airport (NNK) | Naknek, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,850.22 miles (17,461.69 km) S | George Airport (GRJ) | George, South Africa | |
| 2 | 10,843.02 miles (17,450.10 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 3 | 10,836.89 miles (17,440.25 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,798.85 miles (17,379.02 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,755.74 miles (17,309.64 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,646.44 miles (17,133.73 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,582.57 miles (17,030.95 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,540.87 miles (16,963.85 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 9 | 10,538.89 miles (16,960.65 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 10 | 10,535.13 miles (16,954.60 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 11 | 10,533.59 miles (16,952.13 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 12 | 10,526.97 miles (16,941.47 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,520.45 miles (16,930.98 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 14 | 10,520.45 miles (16,930.98 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 15 | 10,513.38 miles (16,919.60 km) SSW | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 890.56 miles (1,433.22 km) SSW | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 2 | 1,044.58 miles (1,681.09 km) WSW | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 3 | 1,229.76 miles (1,979.10 km) N | Kona International Airport at Keāhole (KOA) | Kailua / Kona, Hawaii, United States | |
| 4 | 1,235.14 miles (1,987.75 km) N | Hilo International Airport (ITO) | Hilo, Hawaii, United States | |
| 5 | 1,238.50 miles (1,993.17 km) N | Pōhakuloa Training Area (BSF) | Camp Pohakuloa, Hawaii, United States | |
| 6 | 1,249.90 miles (2,011.52 km) N | Waimea-Kohala Airport (MUE) | Kamuela, Hawaii, United States | |
| 7 | 1,266.96 miles (2,038.97 km) N | Upolu Airport (UPP) | Hawi, Hawaii, United States | |
| 8 | 1,299.19 miles (2,090.84 km) N | Lanai Airport (LNY) | Lanai City, Hawaii, United States | |
| 9 | 1,302.72 miles (2,096.52 km) N | Hana Airport (HNM) | Hana, Hawaii, United States | |
| 10 | 1,305.95 miles (2,101.72 km) SSE | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| 11 | 1,308.19 miles (2,105.33 km) N | Kahului Airport (OGG) | Kahului, Hawaii, United States | |
| 12 | 1,311.97 miles (2,111.41 km) N | Kapalua Airport (JHM) | Lahaina, Hawaii, United States | |
| 13 | 1,312.77 miles (2,112.69 km) NW | Johnston Atoll Airport (JON) | Johnston Atoll, U.S. Minor Outlying Islands | |
| 14 | 1,319.03 miles (2,122.77 km) SSE | Maupiti Airport (MAU) | Maupiti, Leeward Islands, French Polynesia | |
| 15 | 1,324.40 miles (2,131.41 km) N | Molokai Airport (MKK) | Kaunakakai, Hawaii, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,367.09 miles (19,902.85 km) SW | Ikela Airport (IKL) | Ikela, Democratic Republic of the Congo | |
| 2 | 12,324.95 miles (19,835.04 km) SSW | Lodja Airport (LJA) | Lodja, Democratic Republic of the Congo | |
| 3 | 12,267.24 miles (19,742.16 km) SE | Boende Airport (BNB) | Boende, Democratic Republic of the Congo | |
| 4 | 12,225.17 miles (19,674.45 km) SSW | Lusambo Airport (LBO) | Lusambo, Democratic Republic of the Congo | |
| 5 | 12,214.69 miles (19,657.59 km) SE | Basongo Airport (BAN) | Basongo, Democratic Republic of the Congo | |
| 6 | 12,207.64 miles (19,646.24 km) SSW | Yangambi Airport (YAN) | Yangambi, Democratic Republic of the Congo | |
| 7 | 12,202.38 miles (19,637.78 km) WSW | Kindu Airport (KND) | Kindu, Democratic Republic of the Congo | |
| 8 | 12,184.71 miles (19,609.34 km) SW | Bangoka International Airport (FKI) | Kisangani, Democratic Republic of the Congo | |
| 9 | 12,182.00 miles (19,604.97 km) E | Basango Mboliasa Airport (KRZ) | Kiri, Democratic Republic of the Congo | |
| 10 | 12,166.09 miles (19,579.37 km) S | Kananga Airport (KGA) | Kananga, Democratic Republic of the Congo | |
| 11 | 12,144.17 miles (19,544.10 km) SSW | Mbuji Mayi Airport (MJM) | Mbuji Mayi, Democratic Republic of the Congo | |
| 12 | 12,140.82 miles (19,538.70 km) SE | Idiofa Airport (IDF) | Idiofa, Democratic Republic of the Congo | |
| 13 | 12,139.66 miles (19,536.84 km) SE | Basankusu Airport (BSU) | Basankusu, Democratic Republic of the Congo | |
| 14 | 12,138.75 miles (19,535.38 km) NNE | Lisala Airport (LIQ) | Lisala, Democratic Republic of the Congo | |
| 15 | 12,135.41 miles (19,530.00 km) E | Inongo Airport (INO) | Inongo, Democratic Republic of the Congo | |