Nonstop flight route between Portland, Maine, United States and Stewart, British Columbia, Canada:
Departure Airport:

Arrival Airport:

Distance from PWM to ZST:
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- About this route
- PWM Airport Information
- ZST Airport Information
- Facts about PWM
- Facts about ZST
- 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 ZST
- List of Nearest Airports to ZST
- Map of Furthest Airports from ZST
- List of Furthest Airports from ZST
About this route:
A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Stewart Aerodrome (ZST), Stewart, British Columbia, Canada would travel a Great Circle distance of 2,699 miles (or 4,344 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 Stewart Aerodrome, 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 Stewart Aerodrome. 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: | ZST / CZST |
Airport Name: | Stewart Aerodrome |
Location: | Stewart, British Columbia, Canada |
GPS Coordinates: | 55°55'58"N by 129°58'58"W |
Operator/Owner: | District of Stewart |
Airport Type: | Public |
Elevation: | 24 feet (7 meters) |
# of Runways: | 1 |
View all routes: | Routes from ZST |
More Information: | ZST Maps & Info |
Facts about Portland International Jetport (PWM):
- Portland International Jetport (PWM) has 2 runways.
- Peoplexpress Airlines arrived in 1983, the first jet competitor to Northeast/Delta at PWM.
- Jet flights began in 1968, and for the first time Portland got a nonstop beyond Boston when Northeast DC-9s flew to La Guardia.
- Portland International Jetport is a public airport two miles west of downtown Portland, in Cumberland County, Maine.
- 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.
- In 1995 a terminal building improvement project was undertaken to add two-second-level boarding gates, as well as additional space for ticketing, operations, departure lounge, concessions, and an international customs facility.
- 1986 also brought US Airways, who began flights to Philadelphia and Pittsburgh.
- 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.
- 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.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
Facts about Stewart Aerodrome (ZST):
- The closest airport to Stewart Aerodrome (ZST) is Hyder Seaplane Base (WHD), which is located only 2 miles (4 kilometers) SSW of ZST.
- Because of Stewart Aerodrome's relatively low elevation of 24 feet, planes can take off or land at Stewart Aerodrome 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 Stewart Aerodrome (ZST) is Port Alfred Airport (AFD), which is located 10,538 miles (16,959 kilometers) away in Port Alfred, South Africa.
- Stewart Aerodrome (ZST) currently has only 1 runway.