Nonstop flight route between Portland, Maine, United States and Sault Ste. Marie, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from PWM to INR:
Share this route:
Jump to:
- About this route
- PWM Airport Information
- INR Airport Information
- Facts about PWM
- Facts about INR
- 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 INR
- List of Nearest Airports to INR
- Map of Furthest Airports from INR
- List of Furthest Airports from INR
About this route:
A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Kincheloe Air Force Base (INR), Sault Ste. Marie, Michigan, United States would travel a Great Circle distance of 715 miles (or 1,150 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 Portland International Jetport and Kincheloe Air Force Base, the route shown on this map most likely still appears to be a straight line.
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: | INR / |
Airport Name: | Kincheloe Air Force Base |
Location: | Sault Ste. Marie, Michigan, United States |
GPS Coordinates: | 46°15'2"N by 84°28'20"W |
View all routes: | Routes from INR |
More Information: | INR Maps & Info |
Facts about Portland International Jetport (PWM):
- Boston-Maine Airways had a monopoly on passenger air travel at Portland, which continued after the airline was renamed Northeast Airlines.
- That same year, regional Ransome Airlines, doing business as Delta Connection, began a route between Portland and Boston.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- 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.
- 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 1982 PWM got its first nonstop beyond New York, when Delta tried a 727 to Cincinnati for a year or so.
- Also in 2010, Air Canada announced that it would be launching a number of new routes out of Toronto, including a flight to Portland.
- The airfield was founded in the late 1920s by Dr.
- In 2004 Runway 11/29 was lengthened to 7,200 feet.
- 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 1972 Northeast Airlines was bought by Delta Air Lines which retained its routes to Bangor, Boston, and New York.
- Portland International Jetport (PWM) has 2 runways.
Facts about Kincheloe Air Force Base (INR):
- In November, 1961, following two years of construction, the 4239th Strategic Wing of the Strategic Air Command arrived with B-52 bombers.
- The closest airport to Kincheloe Air Force Base (INR) is Chippewa County International Airport (CIU), which is located only 0 mile (0 kilometer) N of INR.
- During World War II, the Soo Locks were considered vital to the war efforts.
- On 2 February 1959, Strategic Air Command established the 4239th Strategic Wing at Kincheloe AFB, Michigan as part of SAC's plan to disburse its B-52 Stratofortress heavy bombers over a larger number of bases, thus making it more difficult for the Soviet Union to knock out the entire fleet with a surprise first strike.
- Next, Kincheloe AFB was assigned to the Sault Sainte Marie Air Defense Sector at K.
- The mission of Kinross AAF was to serve as a refueling stop for aircraft headed for Alaska as well as to defend the locks of Sault Ste.
- The furthest airport from Kincheloe Air Force Base (INR) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
- On 1 Oct 1968, the 449th became the host unit assigned to Kincheloe AFB with the inactivations of the 507th Fighter Wing and the activations & Organizations of the 449th Combat Support Group, the 449th Civil Engineering Squadron, 449th Security Police Squadron, 449th Services Squadron, 449th Supply Squadron, and the 449th Transportation Squadron.
- Flying out of Kinross in 1953, pilot Felix Moncla and his plane disappeared while pursuing a UFO over the Soo Locks and Lake Superior.