Nonstop flight route between Greenville, Illinois, United States and Portland, Oregon, United States:
Departure Airport:

Arrival Airport:

Distance from GRE to TTD:
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- About this route
- GRE Airport Information
- TTD Airport Information
- Facts about GRE
- Facts about TTD
- Map of Nearest Airports to GRE
- List of Nearest Airports to GRE
- Map of Furthest Airports from GRE
- List of Furthest Airports from GRE
- Map of Nearest Airports to TTD
- List of Nearest Airports to TTD
- Map of Furthest Airports from TTD
- List of Furthest Airports from TTD
About this route:
A direct, nonstop flight between Greenville Airport (GRE), Greenville, Illinois, United States and Portland-Troutdale Airport (TTD), Portland, Oregon, United States would travel a Great Circle distance of 1,739 miles (or 2,799 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 Greenville Airport and Portland-Troutdale Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GRE / KGRE |
Airport Name: | Greenville Airport |
Location: | Greenville, Illinois, United States |
GPS Coordinates: | 38°50'9"N by 89°22'45"W |
Area Served: | Greenville, Illinois |
Operator/Owner: | Greenville Airport Authority |
Airport Type: | Public |
Elevation: | 541 feet (165 meters) |
# of Runways: | 2 |
View all routes: | Routes from GRE |
More Information: | GRE Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | TTD / KTTD |
Airport Name: | Portland-Troutdale Airport |
Location: | Portland, Oregon, United States |
GPS Coordinates: | 45°32'57"N by 122°24'3"W |
Area Served: | Portland, Oregon |
Operator/Owner: | Port of Portland |
Airport Type: | Public |
Elevation: | 39 feet (12 meters) |
# of Runways: | 1 |
View all routes: | Routes from TTD |
More Information: | TTD Maps & Info |
Facts about Greenville Airport (GRE):
- Because of Greenville Airport's relatively low elevation of 541 feet, planes can take off or land at Greenville 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 furthest airport from Greenville Airport (GRE) is Margaret River Airport (MGV), which is located 11,038 miles (17,764 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Greenville Airport (GRE) is Salem–Leckrone Airport (SLO), which is located 26 miles (42 kilometers) ESE of GRE.
- Greenville Airport (GRE) has 2 runways.
Facts about Portland-Troutdale Airport (TTD):
- Portland-Troutdale Airport (TTD) currently has only 1 runway.
- Portland-Troutdale Airport is a public use airport located 10 nautical miles east of the central business district of Portland, in Multnomah County, Oregon, United States.
- The furthest airport from Portland-Troutdale Airport (TTD) is Tôlanaro Airport (FTU), which is located 10,901 miles (17,543 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Portland-Troutdale Airport (TTD) is Portland International Airport (PDX), which is located only 10 miles (16 kilometers) WNW of TTD.
- Because of Portland-Troutdale Airport's relatively low elevation of 39 feet, planes can take off or land at Portland-Troutdale 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.