Nonstop flight route between St. Thomas, Ontario, Canada and Portland, Maine, United States:
Departure Airport:

Arrival Airport:

Distance from YQS to PWM:
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- About this route
- YQS Airport Information
- PWM Airport Information
- Facts about YQS
- Facts about PWM
- Map of Nearest Airports to YQS
- List of Nearest Airports to YQS
- Map of Furthest Airports from YQS
- List of Furthest Airports from YQS
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
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- List of Furthest Airports from PWM
About this route:
A direct, nonstop flight between St. Thomas Municipal Airport (YQS), St. Thomas, Ontario, Canada and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 547 miles (or 880 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 relatively short distance between St. Thomas Municipal Airport and Portland International Jetport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | YQS / CYQS |
Airport Name: | St. Thomas Municipal Airport |
Location: | St. Thomas, Ontario, Canada |
GPS Coordinates: | 42°46'12"N by 81°6'34"W |
Operator/Owner: | Municipality of St. Thomas |
Airport Type: | Public |
Elevation: | 779 feet (237 meters) |
# of Runways: | 3 |
View all routes: | Routes from YQS |
More Information: | YQS 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 St. Thomas Municipal Airport (YQS):
- The closest airport to St. Thomas Municipal Airport (YQS) is London international Airport (YXU), which is located only 18 miles (29 kilometers) N of YQS.
- There is one flight training school operating out of the airport, in addition to numerous agricultural aircraft in the summer.
- Because of St. Thomas Municipal Airport's relatively low elevation of 779 feet, planes can take off or land at St. Thomas 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.
- St. Thomas Municipal Airport (YQS) has 3 runways.
- The furthest airport from St. Thomas Municipal Airport (YQS) is Margaret River Airport (MGV), which is located 11,370 miles (18,298 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Portland International Jetport (PWM):
- Peoplexpress Airlines arrived in 1983, the first jet competitor to Northeast/Delta at PWM.
- That same year, regional Ransome Airlines, doing business as Delta Connection, began a route between Portland and Boston.
- That year regional Air New England began service in Portland, competing with Northeast Airlines intrastate and between Portland and Boston.
- After Independence Air went bankrupt Portland had no low-cost carrier, causing fares to go up, and passenger numbers to decline.
- Portland International Jetport (PWM) has 2 runways.
- The airfield was founded in the late 1920s by Dr.
- In 1981 Air New England ceased operations and pulled out of the Jetport after 11 years.
- 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.
- 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.
- Portland International Jetport is a public airport two miles west of downtown Portland, in Cumberland County, Maine.