Nonstop flight route between Portland, Maine, United States and San Francisco, California, United States:
Departure Airport:

Arrival Airport:

Distance from PWM to SFO:
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- About this route
- PWM Airport Information
- SFO Airport Information
- Facts about PWM
- Facts about SFO
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
- 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 Portland International Jetport (PWM), Portland, Maine, United States and San Francisco International Airport (SFO), San Francisco, California, United States would travel a Great Circle distance of 2,716 miles (or 4,372 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 Portland International Jetport 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 Portland International Jetport 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: | PWM / KPWM |
Airport Name: | Portland International Jetport |
Location: | Portland, Maine, United States |
GPS Coordinates: | 43°38'45"N by 70°18'33"W |
Area Served: | Portland, Maine |
Airport Type: | Public |
Elevation: | 76 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from PWM |
More Information: | PWM 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 Portland International Jetport (PWM):
- The present airport started to take shape in the 1950s.
- Portland International Jetport (PWM) has 2 runways.
- Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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 airfield was founded in the late 1920s by Dr.
- In 2008 Delta Air Lines resumed mainline service to Portland, a daily flight to Atlanta on a McDonnell Douglas MD-88.
- In 2004 Runway 11/29 was lengthened to 7,200 feet.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- The airport is the busiest in the state.
- The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
- In 1982 PWM got its first nonstop beyond New York, when Delta tried a 727 to Cincinnati for a year or so.
Facts about San Francisco International Airport (SFO):
- In summer 2011, Lufthansa and Air France operated the Airbus A380 at SFO seasonally, the first A380 scheduled service to the airport.
- 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.
- San Francisco International Airport handled 44,477,209 passengers last year.
- San Francisco International Airport (SFO) has 4 runways.
- 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.
- After the war United Airlines used the Pan Am terminal 37°38′05″N 122°23′24″W / 37.6347°N 122.39°W / 37.6347.
- 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.
- Formerly known as the "North Terminal," Terminal 3 has Boarding Area E and Boarding Area F has 26 gates.
- 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.