Nonstop flight route between Asmara, Eritrea and San Francisco, California, United States:
Departure Airport:
(15°17'30"N by 38°54'38"E)
Arrival Airport:
(37°37'8"N by 122°22'30"W)
Distance from ASM to SFO:
8,584.17 miles (13,814.84 km)
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Jump to:
- About this route
- ASM Airport Information
- SFO Airport Information
- Facts about ASM
- Facts about SFO
- Map of Nearest Airports to ASM
- List of Nearest Airports to ASM
- Map of Furthest Airports from ASM
- List of Furthest Airports from ASM
- Map of Nearest Airports to SFO
- List of Nearest Airports to SFO
- Map of Furthest Airports from SFO
- List of Furthest Airports from SFO
About this route:
A direct, nonstop flight between Asmara International Airport (ASM), Asmara, Eritrea and San Francisco International Airport (SFO), San Francisco, California, United States would travel a Great Circle distance of 8,584 miles (or 13,815 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 Asmara International Airport and San Francisco 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 Asmara International Airport and San Francisco 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: | ASM / HHAS |
| Airport Name: | Asmara International Airport |
| Location: | Asmara, Eritrea |
| GPS Coordinates: | 15°17'30"N by 38°54'38"E |
| Area Served: | Asmara |
| Airport Type: | Military/Public |
| Elevation: | 7661 feet (2,335 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ASM |
| More Information: | ASM Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SFO / KSFO |
| Airport Name: | San Francisco International Airport |
| Location: | San Francisco, California, United States |
| GPS Coordinates: | 37°37'8"N by 122°22'30"W |
| Area Served: | San Francisco |
| Operator/Owner: | City & County of San Francisco |
| Airport Type: | Public |
| Elevation: | 13 feet (4 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from SFO |
| More Information: | SFO Maps & Info |
Facts about Asmara International Airport (ASM):
- Because of Asmara International Airport's high elevation of 7,661 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ASM. Combined with a high temperature, this could make ASM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Asmara International Airport has capacity restrictions due to its small terminal, short runway and 1.5-mile altitude.
- On 7 July 1935, an agreement was signed with Imperial Airways to connect Asmara to Khartoum.
- Asmara International Airport (ASM) has 2 runways.
- The furthest airport from Asmara International Airport (ASM) is Fangatau Airport (FGU), which is nearly antipodal to Asmara International Airport (meaning Asmara International Airport is almost on the exact opposite side of the Earth from Fangatau Airport), and is located 12,398 miles (19,952 kilometers) away in Fangatau, French Polynesia.
- The closest airport to Asmara International Airport (ASM) is Massawa International Airport (MSW), which is located 41 miles (66 kilometers) NE of ASM.
Facts about San Francisco International Airport (SFO):
- For lack of space, the terminal was built on top of the airport's main access road at enormous expense, completing the continuous ring of terminals.
- Because of San Francisco International Airport's relatively low elevation of 13 feet, planes can take off or land at San Francisco 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.
- SFO is the largest airport in the Bay Area and the second busiest in California, after Los Angeles International Airport.
- The airport opened on May 7, 1927, on 150 acres of cow pasture.
- San Francisco International Airport handled 44,477,209 passengers last year.
- The furthest airport from San Francisco International Airport (SFO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,290 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to San Francisco International Airport (SFO) is Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), which is located only 10 miles (16 kilometers) SW of SFO.
- SFO experiences delays in overcast weather when only two of the airport's four runways can be used at a time because the centerlines of the parallel runways are only 750 feet apart.
- San Francisco International Airport (SFO) has 4 runways.
- SFO was one of the first airports to implement a Fly Quiet Program which grades individual air carriers on their performance on noise abatement procedures while flying in and out of SFO.
- Terminal 2, formerly known as the "Central Terminal," opened in 1954 as the main airport terminal.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 40.73 miles (65.55 km) NE | Massawa International Airport (MSW) | Massawa, Eritrea |     |
| 2 | 80.30 miles (129.23 km) S | Axum Emperor Yohannes IV Airport (AXU) | Axum, Ethiopia | |
| 3 | 132.78 miles (213.69 km) SSE | Alula Aba Nega Airport (MQX) | Mekelle, Tigray, Ethiopia | |
| 4 | 169.14 miles (272.20 km) SW | Humera Airport (HUE) | Humera, Ethiopia | |
| 5 | 172.17 miles (277.08 km) W | Kassala Airport (KSL) | Kassala, Sudan | |
| 6 | 203.87 miles (328.10 km) W | Khashm El Girba Airport (GBU) | Khashm El Girba, Sudan | |
| 7 | 215.62 miles (347.01 km) SSW | Gondar Atse Tewodros Airport (GDQ) | Gondar, Ethiopia | |
| 8 | 229.31 miles (369.04 km) S | Lalibela Airport (LLI) | Lalibela, Ethiopia | |
| 9 | 243.05 miles (391.16 km) SSW | Debre Tabor Airport (DBT) | Debre Tabor, Ethiopia | |
| 10 | 273.85 miles (440.71 km) E | Hodeida International Airport (HOD) | Al Hudaydah (Hodeida), Yemen | |
| 11 | 293.42 miles (472.22 km) ESE | Assab International Airport (ASA) | Assab, Eritrea | |
| 12 | 295.78 miles (476.01 km) S | Combolcha Airport (DSE) | Dessie / Kombolcha, Ethiopia | |
| 13 | 306.77 miles (493.70 km) NNW | Port Sudan New International Airport (PZU) | Port Sudan, Sudan | |
| 14 | 315.78 miles (508.20 km) S | Mekane Selam Airport (MKS) | Mekane Selam, Ethiopia | |
| 15 | 320.58 miles (515.92 km) SW | Galegu Airport (DNX) | Dinder, Sudan | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,397.92 miles (19,952.46 km) SSW | Fangatau Airport (FGU) | Fangatau, French Polynesia | |
| 2 | 12,330.77 miles (19,844.39 km) ESE | Raroia Airport (RRR) | Raroia, French Polynesia | |
| 3 | 12,244.29 miles (19,705.22 km) S | Hao Airport (HOI) | Hao, Tuamotu Island, French Polynesia | |
| 4 | 12,244.28 miles (19,705.21 km) ESE | Makemo Airport (MKP) | Makemo, French Polynesia | |
| 5 | 12,128.42 miles (19,518.75 km) E | Fakarava Airport (FAV) | Fakarava, Society Islands, French Polynesia | |
| 6 | 12,121.39 miles (19,507.44 km) SSW | Nukutavake Airport (NUK) | Nukutavake, Tuamotus, French Polynesia | |
| 7 | 12,110.92 miles (19,490.59 km) ESE | Anaa Airport (AAA) | Anaa, Tuamotus, French Polynesia | |
| 8 | 12,098.94 miles (19,471.31 km) E | Manihi Airport (XMH) | Manihi, French Polynesia | |
| 9 | 12,096.78 miles (19,467.84 km) SW | Pukarua Airport (PUK) | Pukarua, Tuamotus, French Polynesia | |
| 10 | 12,086.58 miles (19,451.42 km) E | Ahe Airport (AHE) | Ahe, French Polynesia | |
| 11 | 12,081.64 miles (19,443.47 km) E | Apataki Airport (APK) | Apataki, French Polynesia | |
| 12 | 12,068.13 miles (19,421.73 km) E | Arutua Airport (AXR) | Arutua, Tuamotus, French Polynesia | |
| 13 | 12,030.32 miles (19,360.87 km) SSW | Atuona Airport (AUQ) | Atuona, Marquesas Islands, French Polynesia | |
| 14 | 12,023.51 miles (19,349.91 km) SSW | Tureira Airport (ZTA) | Tureia, Tuamotus, French Polynesia | |
| 15 | 11,927.51 miles (19,195.41 km) E | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10.04 miles (16.17 km) SW | Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) | Half Moon Bay, California, United States | |
| 2 | 11.01 miles (17.72 km) NE | Oakland International Airport (OAK) | Oakland (near San Francisco), California, United States | |
| 3 | 14.13 miles (22.75 km) ENE | Hayward Executive Airport (HWD) | Hayward, California, United States | |
| 4 | 17.94 miles (28.87 km) SE | Palo Alto Airport of Santa Clara County (PAO) | Palo Alto, California, United States | |
| 5 | 22.78 miles (36.66 km) SE | Moffett Federal Airfield (NUQ) | Mountain View, California, United States | |
| 6 | 30.17 miles (48.56 km) SE | Norman Y. Mineta San Jose International Airport (SJC) | San Jose, California, United States | |
| 7 | 30.77 miles (49.52 km) E | Livermore Municipal Airport (LVK) | Livermore, California, United States | |
| 8 | 30.95 miles (49.81 km) NE | Buchanan FieldConcord Army Air Base (CCR) | Concord, California, United States | |
| 9 | 36.30 miles (58.42 km) ESE | Reid-Hillview Airport of Santa Clara County (RHV) | San Jose, California, United States | |
| 10 | 37.58 miles (60.47 km) NNW | Marin County Airport (NOT) | Novato, California, United States | |
| 11 | 41.38 miles (66.60 km) N | Napa County Airport (APC) | Napa, California, United States | |
| 12 | 50.73 miles (81.65 km) NNE | Travis Air Force Base Fairfield-Suisun Army Airfield (SUU) | Fairfield, California, United States | |
| 13 | 57.06 miles (91.83 km) NNE | Nut Tree Airport (VCB) | Vacaville, California, United States | |
| 14 | 57.12 miles (91.93 km) SE | Watsonville Municipal Airport (WVI) | Watsonville, California, United States | |
| 15 | 64.94 miles (104.51 km) ENE | Stockton Metropolitan Airport (SCK) | Stockton, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,365.15 miles (18,290.40 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 11,303.13 miles (18,190.57 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 11,274.07 miles (18,143.82 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 4 | 11,265.49 miles (18,130.00 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 5 | 11,249.16 miles (18,103.72 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 11,174.49 miles (17,983.56 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 11,155.40 miles (17,952.83 km) SSW | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 8 | 11,154.88 miles (17,952.00 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,066.46 miles (17,809.69 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 11,064.08 miles (17,805.87 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 11,050.09 miles (17,783.36 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,999.69 miles (17,702.25 km) SSE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,999.37 miles (17,701.72 km) SSE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,990.13 miles (17,686.86 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,969.17 miles (17,653.12 km) SE | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |