Nonstop flight route between Tacoma, Washington, United States and Sion, Switzerland:
Departure Airport:

Arrival Airport:

Distance from TIW to SIR:
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- About this route
- TIW Airport Information
- SIR Airport Information
- Facts about TIW
- Facts about SIR
- Map of Nearest Airports to TIW
- List of Nearest Airports to TIW
- Map of Furthest Airports from TIW
- List of Furthest Airports from TIW
- Map of Nearest Airports to SIR
- List of Nearest Airports to SIR
- Map of Furthest Airports from SIR
- List of Furthest Airports from SIR
About this route:
A direct, nonstop flight between Tacoma Narrows Airport (TIW), Tacoma, Washington, United States and Sion Airport (SIR), Sion, Switzerland would travel a Great Circle distance of 5,303 miles (or 8,535 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 Tacoma Narrows Airport and Sion Airport, 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 Tacoma Narrows Airport and Sion Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | TIW / KTIW |
Airport Name: | Tacoma Narrows Airport |
Location: | Tacoma, Washington, United States |
GPS Coordinates: | 47°16'5"N by 122°34'41"W |
Area Served: | Tacoma, Washington |
Operator/Owner: | Pierce County Public Works & Utilities |
Airport Type: | Public |
Elevation: | 294 feet (90 meters) |
# of Runways: | 1 |
View all routes: | Routes from TIW |
More Information: | TIW Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SIR / LSGS |
Airport Names: |
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Location: | Sion, Switzerland |
GPS Coordinates: | 46°13'10"N by 7°19'36"E |
Area Served: | Sion, Switzerland |
Elevation: | 1585 feet (483 meters) |
# of Runways: | 2 |
View all routes: | Routes from SIR |
More Information: | SIR Maps & Info |
Facts about Tacoma Narrows Airport (TIW):
- The closest airport to Tacoma Narrows Airport (TIW) is McChord Field/McChord AFB (TCM), which is located only 10 miles (16 kilometers) SSE of TIW.
- Because of Tacoma Narrows Airport's relatively low elevation of 294 feet, planes can take off or land at Tacoma Narrows 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 Tacoma Narrows Airport (TIW) is Tôlanaro Airport (FTU), which is located 10,797 miles (17,376 kilometers) away in Tôlanaro, Madagascar.
- Tacoma Narrows Airport is a county owned, public use airport located 5 mi west of the central business district of Tacoma, a city in Pierce County, Washington, United States.
- Tacoma Narrows Airport (TIW) currently has only 1 runway.
Facts about Sion Airport (SIR):
- In addition to being known as "Sion Airport", other names for SIR include "Aéroport de Sion" and "LSGS /LSMS".
- The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.
- The furthest airport from Sion Airport (SIR) is Chatham Islands (CHT), which is nearly antipodal to Sion Airport (meaning Sion Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,188 miles (19,615 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Sion Airport (SIR) has 2 runways.