Nonstop flight route between Rockland, Maine, United States and Lifuka, Ha'apai, Tonga:
Departure Airport:
(44°3'36"N by 69°5'57"W)
Arrival Airport:
(19°46'36"S by 174°20'27"W)
Distance from RKD to HPA:
7,904.14 miles (12,720.45 km)
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Jump to:
- About this route
- RKD Airport Information
- HPA Airport Information
- Facts about RKD
- Facts about HPA
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
- Map of Nearest Airports to HPA
- List of Nearest Airports to HPA
- Map of Furthest Airports from HPA
- List of Furthest Airports from HPA
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Lifuka Island Airport (HPA), Lifuka, Ha'apai, Tonga would travel a Great Circle distance of 7,904 miles (or 12,720 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 Knox County Regional Airport and Lifuka Island 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 Knox County Regional Airport and Lifuka Island Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | RKD / KRKD |
| Airport Name: | Knox County Regional Airport |
| Location: | Rockland, Maine, United States |
| GPS Coordinates: | 44°3'36"N by 69°5'57"W |
| Area Served: | Rockland, Maine |
| Operator/Owner: | Knox County |
| Airport Type: | Public |
| Elevation: | 56 feet (17 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RKD |
| More Information: | RKD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HPA / NFTL |
| Airport Names: |
|
| Location: | Lifuka, Ha'apai, Tonga |
| GPS Coordinates: | 19°46'36"S by 174°20'27"W |
| Operator/Owner: | Ministry of Civil Aviation |
| Airport Type: | Public |
| Elevation: | 31 feet (9 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HPA |
| More Information: | HPA Maps & Info |
Facts about Knox County Regional Airport (RKD):
- The airport was built during World War II and became locally known as the "Ash Point Naval Air Station" while officially operating as Rockland Naval Auxiliary Air Facility from April 15, 1943 until February 1, 1946.
- Knox County Regional Airport (RKD) has 2 runways.
- The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County Regional 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 closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
Facts about Lifuka Island Airport (HPA):
- Because of Lifuka Island Airport's relatively low elevation of 31 feet, planes can take off or land at Lifuka Island 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 closest airport to Lifuka Island Airport (HPA) is Fuaʻamotu International Airport (TBU), which is located 114 miles (183 kilometers) SSW of HPA.
- Lifuka Island Airport (HPA) currently has only 1 runway.
- The furthest airport from Lifuka Island Airport (HPA) is In Guezzam Airport (INF), which is nearly antipodal to Lifuka Island Airport (meaning Lifuka Island Airport is almost on the exact opposite side of the Earth from In Guezzam Airport), and is located 12,421 miles (19,989 kilometers) away in In Guezzam, Algeria.
- In addition to being known as "Lifuka Island Airport", another name for HPA is "Salote Pilolevu Airport".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 31.23 miles (50.26 km) WSW | Wiscasset Airport (ISS) | Wiscasset, Maine, United States |     |
| 2 | 38.99 miles (62.74 km) WNW | Augusta State Airport (AUG) | Augusta, Maine, United States | |
| 3 | 43.32 miles (69.71 km) WSW | Naval Air Station Brunswick (NHZ) | Brunswick, Maine, United States | |
| 4 | 43.38 miles (69.82 km) NW | Waterville Robert Lafleur Airport (WVL) | Waterville, Maine, United States | |
| 5 | 45.35 miles (72.99 km) NE | Hancock County-Bar Harbor Airport (BHB) | Bar Harbor, Maine, United States | |
| 6 | 53.33 miles (85.83 km) NNE | Bangor International Airport (BGR) | Bangor, Maine, United States | |
| 7 | 58.82 miles (94.66 km) W | Auburn/Lewiston Municipal Airport (LEW) | Auburn/Lewiston, Maine, United States | |
| 8 | 59.05 miles (95.03 km) NW | Central Maine Airport of Norridgewock (OWK) | Norridgewock, Maine, United States | |
| 9 | 65.12 miles (104.80 km) NNE | Old Town Municipal Airport (OLD) | Old Town, Maine, United States | |
| 10 | 66.73 miles (107.38 km) WSW | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 11 | 91.96 miles (148.00 km) W | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 12 | 92.58 miles (148.99 km) WSW | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States | |
| 13 | 108.65 miles (174.86 km) WNW | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 14 | 109.11 miles (175.59 km) NE | Princeton Municipal Airport (PNN) | Princeton, Maine, United States | |
| 15 | 109.78 miles (176.68 km) SW | Portsmouth International Airport at Pease (PSM) | Portsmouth, New Hampshire, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,707.78 miles (18,841.79 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,704.56 miles (18,836.61 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,701.73 miles (18,832.06 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 11,680.66 miles (18,798.16 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,655.50 miles (18,757.66 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,634.75 miles (18,724.26 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,567.46 miles (18,615.98 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,566.96 miles (18,615.17 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 11,555.62 miles (18,596.91 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,511.65 miles (18,526.16 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,459.54 miles (18,442.29 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,374.24 miles (18,305.01 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 11,372.20 miles (18,301.73 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,361.85 miles (18,285.08 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,361.47 miles (18,284.47 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 113.90 miles (183.31 km) SSW | Fuaʻamotu International Airport (TBU) | Nukuʻalofa, Tongatapu, Tonga | |
| 2 | 291.70 miles (469.45 km) E | Niue International Airport (IUE) | Alofi, Niue | |
| 3 | 302.72 miles (487.18 km) NNW | Mata'aho Airport (NFO) | Niuafo'ou, Tonga | |
| 4 | 356.03 miles (572.98 km) WNW | Cicia Airport (ICI) | Cicia, Fiji | |
| 5 | 381.73 miles (614.34 km) WNW | Moala Airport (MFJ) | Moala, Moala Islands, Fiji | |
| 6 | 438.88 miles (706.31 km) NNE | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 7 | 439.09 miles (706.65 km) NNE | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 8 | 441.64 miles (710.75 km) WNW | Koro Airport (KXF) | Koro Island, Fiji | |
| 9 | 444.19 miles (714.85 km) NNE | Fagali'i Airport (FGI) | Apia, Samoa | |
| 10 | 447.91 miles (720.84 km) NNE | Asau Airport (AAU) | Asau, Samoa | |
| 11 | 449.50 miles (723.40 km) NNE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 12 | 450.65 miles (725.24 km) NNW | Aéroport de Futuna - Pointe-Vele Pointe Vele Airport (FUT) | Futuna Island, Wallis and Futuna Islands | |
| 13 | 466.30 miles (750.44 km) NNW | Wallis Island (WLS) | Wallis and Futuna Islands | |
| 14 | 473.44 miles (761.93 km) WNW | Levuka Airfield (LEV) | Bureta, Ovalau Island, Fiji | |
| 15 | 473.72 miles (762.38 km) WNW | Labasa Airport (LBS) | Labasa, Fiji | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,420.74 miles (19,989.19 km) NNW | In Guezzam Airport (INF) | In Guezzam, Algeria | |
| 2 | 12,306.55 miles (19,805.42 km) WNW | Arlit Airport (RLT) | Arlit, Niger | |
| 3 | 12,226.72 miles (19,676.95 km) N | Aguenar – Hadj Bey Akhamok Airport (TMR) | Tamanrasset, Algeria | |
| 4 | 12,189.26 miles (19,616.67 km) NW | Mano Dayak International Airport (AJY) | Agadez, Niger | |
| 5 | 12,111.36 miles (19,491.30 km) ENE | Bordj Mokhtar Airport (BMW) | Bordj Badji Mokhtar, Algeria | |
| 6 | 12,097.71 miles (19,469.33 km) N | Tahoua Airport (THZ) | Tahoua, Niger | |
| 7 | 12,041.40 miles (19,378.71 km) NW | Djanet Tiska Airport (DJG) | Djanet, Algeria | |
| 8 | 11,992.56 miles (19,300.11 km) ENE | Gao International Airport (GAQ) | Gao, Mali | |
| 9 | 11,992.55 miles (19,300.09 km) NNW | Maradi Airport (MFQ) | Maradi, Niger | |
| 10 | 11,968.32 miles (19,261.10 km) NW | Ghat Airport (GHT) | Ghat, Libya | |
| 11 | 11,967.70 miles (19,260.09 km) NNW | Zinder Airport (ZND) | Zinder, Niger | |
| 12 | 11,944.41 miles (19,222.61 km) NNE | Diori Hamani International Airport (NIM) | Niamey, Niger | |
| 13 | 11,930.92 miles (19,200.91 km) NE | Tambao Airport (TMQ) | Tambao, Burkina Faso | |
| 14 | 11,902.37 miles (19,154.96 km) NE | Gorom Gorom Airport (XGG) | Gorom Gorom, Burkina Faso | |
| 15 | 11,888.17 miles (19,132.10 km) NE | Dori Airport (DOR) | Dori, Burkina Faso | |