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

Arrival Airport:

Distance from SDM to PWM:
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- About this route
- SDM Airport Information
- PWM Airport Information
- Facts about SDM
- Facts about PWM
- Map of Nearest Airports to SDM
- List of Nearest Airports to SDM
- Map of Furthest Airports from SDM
- List of Furthest Airports from SDM
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
About this route:
A direct, nonstop flight between Brown Field Municipal Airport (SDM), San Diego, California, United States and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 2,613 miles (or 4,205 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 Brown Field Municipal Airport and Portland International Jetport, 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 Brown Field Municipal Airport and Portland International Jetport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SDM / KSDM |
Airport Name: | Brown Field Municipal Airport |
Location: | San Diego, California, United States |
GPS Coordinates: | 32°34'19"N by 116°58'49"W |
Area Served: | San Diego, California |
Operator/Owner: | City of San Diego |
Airport Type: | Public |
Elevation: | 526 feet (160 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDM |
More Information: | SDM Maps & Info |
Arrival 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 |
Facts about Brown Field Municipal Airport (SDM):
- Because of Brown Field Municipal Airport's relatively low elevation of 526 feet, planes can take off or land at Brown Field Municipal 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 Brown Field Municipal Airport (SDM) is Tijuana International Airport (TIJ), which is located only 2 miles (4 kilometers) SSE of SDM.
- Brown Field Municipal Airport (SDM) has 2 runways.
- In 1951 the Navy reopened Brown Field due to increased military activity from the Korean War.
- On March 16, 1991, seven members of Reba McEntire's band and her road manager were among 10 people who died in the crash of a plane that departed from Brown Field.
- The furthest airport from Brown Field Municipal Airport (SDM) is Sir Gaëtan Duval Airport (RRG), which is located 11,551 miles (18,590 kilometers) away in Rodrigues Island, Mauritius.
- Tijuana Airport, an airline airport, is just over 1 nmi to the south across the Mexico-United States border, with a similar length and a slightly different runway orientation.
Facts about Portland International Jetport (PWM):
- In 2008 Delta Air Lines resumed mainline service to Portland, a daily flight to Atlanta on a McDonnell Douglas MD-88.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- 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.
- That year regional Air New England began service in Portland, competing with Northeast Airlines intrastate and between Portland and Boston.
- 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.
- Peoplexpress Airlines arrived in 1983, the first jet competitor to Northeast/Delta at PWM.
- 1987 saw the arrival of Continental Airlines, when the airline bought PEOPLExpress and took over their routes.
- In June 1983 United Airlines arrived in Portland, planning to be the only airline to serve 50 states.
- Portland International Jetport (PWM) has 2 runways.