Nonstop flight route between Tacoma, Washington, United States and Watertown, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from TCM to ATY:
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- About this route
- TCM Airport Information
- ATY Airport Information
- Facts about TCM
- Facts about ATY
- Map of Nearest Airports to TCM
- List of Nearest Airports to TCM
- Map of Furthest Airports from TCM
- List of Furthest Airports from TCM
- Map of Nearest Airports to ATY
- List of Nearest Airports to ATY
- Map of Furthest Airports from ATY
- List of Furthest Airports from ATY
About this route:
A direct, nonstop flight between McChord Field/McChord AFB (TCM), Tacoma, Washington, United States and Watertown Regional Airport (ATY), Watertown, South Dakota, United States would travel a Great Circle distance of 1,219 miles (or 1,962 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 McChord Field/McChord AFB and Watertown Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | TCM / KTCM |
Airport Names: |
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Location: | Tacoma, Washington, United States |
GPS Coordinates: | 47°8'16"N by 122°28'35"W |
Operator/Owner: | U.S. Air Force |
Airport Type: | Military: Air Force Base |
Elevation: | 322 feet (98 meters) |
# of Runways: | 2 |
View all routes: | Routes from TCM |
More Information: | TCM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ATY / KATY |
Airport Names: |
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Location: | Watertown, South Dakota, United States |
GPS Coordinates: | 44°54'50"N by 97°9'16"W |
Area Served: | Watertown, South Dakota |
Operator/Owner: | City of Watertown |
Airport Type: | Public |
Elevation: | 1749 feet (533 meters) |
# of Runways: | 2 |
View all routes: | Routes from ATY |
More Information: | ATY Maps & Info |
Facts about McChord Field/McChord AFB (TCM):
- The base was the location of the first of twenty-eight stations built by ADC as part of the permanent air defense radar network, and was the top-priority site for ADC radars.
- In 1968, McChord AFB was relieved of its assignment to the subsequently renamed Aerospace Defense Command and was reassigned to Military Airlift Command as one of three MAC bases in the western United States operating the C-141 Starlifter.
- The furthest airport from McChord Field/McChord AFB (TCM) is Tôlanaro Airport (FTU), which is located 10,803 miles (17,386 kilometers) away in Tôlanaro, Madagascar.
- McChord Field/McChord AFB (TCM) has 2 runways.
- The ADC radar site was deactivated 1 April 1960 and repositioned to Fort Lawton AFS where the Air Force consolidated its anti-aircraft radars with the United States Army Seattle Defense Area Army Air-Defense Command Post S-90DC for Nike missile operations.
- Because of McChord Field/McChord AFB's relatively low elevation of 322 feet, planes can take off or land at McChord Field/McChord AFB 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 closest airport to McChord Field/McChord AFB (TCM) is Gray Army Airfield (GRF), which is located only 6 miles (10 kilometers) SW of TCM.
- In addition to being known as "McChord Field/McChord AFB", another name for TCM is "Part of Air Mobility Command (AMC)".
- McChord also had large maintenance facilities for Air Technical Service Command during the war, serving served as a P-39 Aircobra modification center April 1944 – May 1945 for lend-lease aircraft being sent to Russia via the Alaska Territory.
Facts about Watertown Regional Airport (ATY):
- The furthest airport from Watertown Regional Airport (ATY) is Margaret River Airport (MGV), which is located 10,571 miles (17,013 kilometers) away in Margaret River, Western Australia, Australia.
- Watertown Regional Airport (ATY) has 2 runways.
- The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
- In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".
- During World War II the airfield was used by the United States Army Air Forces.