Nonstop flight route between Piarco (near Port of Spain), Trinidad and Tobago and Tacoma, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from POS to GRF:
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- About this route
- POS Airport Information
- GRF Airport Information
- Facts about POS
- Facts about GRF
- Map of Nearest Airports to POS
- List of Nearest Airports to POS
- Map of Furthest Airports from POS
- List of Furthest Airports from POS
- Map of Nearest Airports to GRF
- List of Nearest Airports to GRF
- Map of Furthest Airports from GRF
- List of Furthest Airports from GRF
About this route:
A direct, nonstop flight between Piarco International Airport (POS), Piarco (near Port of Spain), Trinidad and Tobago and Gray Army Airfield (GRF), Tacoma, Washington, United States would travel a Great Circle distance of 4,341 miles (or 6,986 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 Piarco International Airport and Gray Army Airfield, 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 Piarco International Airport and Gray Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | POS / TTPP |
Airport Names: |
|
Location: | Piarco (near Port of Spain), Trinidad and Tobago |
GPS Coordinates: | 10°35'43"N by 61°20'13"W |
Area Served: | Port of Spain |
Operator/Owner: | City of Port of Spain |
Airport Type: | Public |
Elevation: | 58 feet (18 meters) |
# of Runways: | 1 |
View all routes: | Routes from POS |
More Information: | POS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | GRF / KGRF |
Airport Names: |
|
Location: | Tacoma, Washington, United States |
GPS Coordinates: | 47°4'45"N by 122°34'50"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 300 feet (91 meters) |
# of Runways: | 1 |
View all routes: | Routes from GRF |
More Information: | GRF Maps & Info |
Facts about Piarco International Airport (POS):
- Because of Piarco International Airport's relatively low elevation of 58 feet, planes can take off or land at Piarco International 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 Piarco International Airport (POS) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Piarco International Airport (meaning Piarco International Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,308 miles (19,808 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
- In 2006 the Airports Authority of Trinidad And Tobago commissioned a study for land use planning and urban development planning.
- The closest airport to Piarco International Airport (POS) is A.N.R. Robinson International Airport (TAB), which is located 51 miles (83 kilometers) NE of POS.
- The new North Terminal consists of 35,964 m2 of building with 14-second-level aircraft gates for international flights and 2 ground level domestic gates.
- Piarco International Airport (POS) currently has only 1 runway.
- In addition to being known as "Piarco International Airport", another name for POS is "78970[1][2]".
- Piarco Airport opened on 8 January 1931, to serve Venezuela's Compagnie Generale Aeropostale.
Facts about Gray Army Airfield (GRF):
- The closest airport to Gray Army Airfield (GRF) is McChord Field/McChord AFB (TCM), which is located only 6 miles (10 kilometers) NE of GRF.
- Used to support Fort Lewis, Army helicopters assisted with medical evacuations at Mount Rainier National Park on numerous occasions in the 1970s.
- After the Korean War, the 2d Aviation Company, of the 2d Infantry Division, which had been the first helicopter unit in Korea, returned to Fort Lewis with observation/spotter aircraft L-19 Bird Dogs, and L-20 Beavers, as well as H-23 Raven helicopters.
- In addition to being known as "Gray Army Airfield", another name for GRF is "(Joint Base Lewis-McChord)".
- Gray Army Airfield (GRF) currently has only 1 runway.
- During the Korean War, GAAF continued in the role as a training and division support field.
- The furthest airport from Gray Army Airfield (GRF) is Tôlanaro Airport (FTU), which is located 10,809 miles (17,395 kilometers) away in Tôlanaro, Madagascar.
- The Fort Lewis airfield housed observation planes.
- Because of Gray Army Airfield's relatively low elevation of 300 feet, planes can take off or land at Gray Army Airfield 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.