Nonstop flight route between Siena, Italy and San Francisco, California, United States:
Departure Airport:
(43°15'23"N by 11°15'18"E)
Arrival Airport:
(37°37'8"N by 122°22'30"W)
Distance from SAY to SFO:
6,138.24 miles (9,878.51 km)
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- About this route
- SAY Airport Information
- SFO Airport Information
- Facts about SAY
- Facts about SFO
- Map of Nearest Airports to SAY
- List of Nearest Airports to SAY
- Map of Furthest Airports from SAY
- List of Furthest Airports from SAY
- 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 Siena-Ampugnano Airport (SAY), Siena, Italy and San Francisco International Airport (SFO), San Francisco, California, United States would travel a Great Circle distance of 6,138 miles (or 9,879 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 Siena-Ampugnano 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 Siena-Ampugnano 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: | SAY / LIQS |
| Airport Names: |
|
| Location: | Siena, Italy |
| GPS Coordinates: | 43°15'23"N by 11°15'18"E |
| Area Served: | Siena, Tuscany, Italy |
| Operator/Owner: | Aeroporto di Siena S.p.A. |
| Airport Type: | Military / Public |
| Elevation: | 634 feet (193 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SAY |
| More Information: | SAY 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 Siena-Ampugnano Airport (SAY):
- Siena-Ampugnano Airport (SAY) currently has only 1 runway.
- Siena-Ampugnano Airport handled 3,745 passengers last year.
- Because of Siena-Ampugnano Airport's relatively low elevation of 634 feet, planes can take off or land at Siena-Ampugnano 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 "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
- The furthest airport from Siena-Ampugnano Airport (SAY) is Chatham Islands (CHT), which is nearly antipodal to Siena-Ampugnano Airport (meaning Siena-Ampugnano Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,049 miles (19,391 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The airport resides at an elevation of 634 feet above mean sea level.
- The site has recently been proposed for a new international airport capable of handling 4 million passengers a year by 2020.
- The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.
Facts about San Francisco International Airport (SFO):
- San Francisco International Airport is an international airport located 13 miles south of downtown San Francisco, California, near Millbrae and San Bruno in unincorporated San Mateo County.
- Domestic flights on JetBlue Airways, Sun Country Airlines, and Hawaiian Airlines also operate from the International Terminal at boarding area A.
- SFO has expanded through the decades.
- SFO was also one of the first U.S.
- 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.
- 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.
- 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.
- A long-planned extension of the Bay Area Rapid Transit system to the airport opened on June 22, 2003, allowing passengers to board BART trains at the international terminal to San Francisco or the East Bay.
- San Francisco International Airport (SFO) has 4 runways.
- San Francisco International Airport handled 44,477,209 passengers last year.
- SFO is the largest airport in the Bay Area and the second busiest in California, after Los Angeles International Airport.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.54 miles (57.20 km) SSW | Grosseto Airport (GRS) | Grosseto, Italy |     |
| 2 | 38.34 miles (61.70 km) N | Florence Airport, Peretola (FLR) | Florence, Italy | |
| 3 | 52.37 miles (84.28 km) NW | Pisa International Airport (PSA) | Pisa, Italy | |
| 4 | 61.71 miles (99.31 km) WSW | Marina di Campo Airport (EBA) | Elba, Italy | |
| 5 | 64.35 miles (103.56 km) E | Perugia San Francesco d'Assisi – Umbria International Airport (PEG) | Perugia, Italy | |
| 6 | 76.59 miles (123.25 km) NNE | Forlì Airport (FRL) | Forlì, Emilia-Romagna, Italy | |
| 7 | 85.83 miles (138.12 km) NE | Federico Fellini International Airport (RMI) | Rimini, Italy | |
| 8 | 88.39 miles (142.25 km) N | Bologna Guglielmo Marconi Airport (BLQ) | Bologna, Italy | |
| 9 | 102.02 miles (164.19 km) WSW | Bastia – Poretta Airport (BIA) | Bastia, Corsica, France | |
| 10 | 108.61 miles (174.79 km) ENE | Falconara Airport (AOI) | Ancona, Italy | |
| 11 | 112.39 miles (180.87 km) SSE | Fiumicino – Leonardo da Vinci International Airport (FCO) | Fiumicino (near Rome), Italy | |
| 12 | 118.22 miles (190.26 km) NNW | Parma Airport (PMF) | Parma, Italy | |
| 13 | 121.67 miles (195.81 km) SE | Ciampino–G. B. Pastine International Airport (CIA) | Rome, Italy | |
| 14 | 134.62 miles (216.65 km) WSW | Calvi - Sainte-Catherine Airport (CLY) | Calvi, Corsica, France | |
| 15 | 137.40 miles (221.13 km) NNW | Piacenza-San Damiano Air Base (QPZ) | Piacenza, Italy | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,048.74 miles (19,390.52 km) E | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,675.99 miles (18,790.63 km) ESE | Gisborne Airport (GIS) | Gisborne, New Zealand | |
| 3 | 11,647.56 miles (18,744.89 km) ESE | Hawke's Bay Airport (NPE) | Napier, New Zealand | |
| 4 | 11,622.05 miles (18,703.83 km) E | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 5 | 11,607.40 miles (18,680.26 km) E | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 6 | 11,600.41 miles (18,669.00 km) ESE | Whakatane Airport (WHK) | Whakatane, New Zealand | |
| 7 | 11,588.43 miles (18,649.72 km) E | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 8 | 11,587.92 miles (18,648.91 km) ESE | Taupo AirportTe Papa Waka Rererangi o Taupō (TUO) | Taupo, New Zealand | |
| 9 | 11,586.98 miles (18,647.39 km) E | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 10 | 11,578.75 miles (18,634.14 km) ESE | Rotorua International Airport (ROT) | Rotorua, New Zealand | |
| 11 | 11,569.59 miles (18,619.41 km) E | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 12 | 11,558.03 miles (18,600.80 km) ESE | Tauranga Airport (TRG) | Tauranga, New Zealand | |
| 13 | 11,543.18 miles (18,576.90 km) E | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 14 | 11,542.29 miles (18,575.47 km) E | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 15 | 11,538.61 miles (18,569.54 km) ESE | Matamata Airport (MTA) | Matamata, New Zealand | |
| 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 | |