Sion Airport (LSGS)
Medium airport · Sion, Valais, Switzerland
Airport data
| Name | Sion Airport |
|---|---|
| ICAO | LSGS |
| IATA | SIR |
| Elevation | 1,582 ft (482 m) above mean sea level |
| Coordinates | N 46°13'9" E 7°19'37" 46.21917, 7.32694 |
| Location | Sion, Valais, Switzerland |
| Scheduled service | No |
Runways
| Runway | Length | Width | Surface | Lighted |
|---|---|---|---|---|
| 07/25 | 6,562 ft (2000 m) | 131 ft | ASPH | Yes |
| 07G/25G | 1,837 ft (560 m) | 98 ft | GRS | No |
Sion Airport at a glance
Sion Airport is a medium airport in Sion, Valais, Switzerland, known to airline systems as SIR. The field elevation of 1,582 ft (482 m) is the number every arriving pilot dials against QNH — circuit heights and initial approach altitudes at LSGS are all figured from it. There is no scheduled airline service listed here — typical traffic is general aviation, training and local operations.
Of its 2 runways, the longest — 07/25 — offers 6,562 ft (2000 m) of asph surface, with runway lighting for night operations. Runway numbers give magnetic orientation: runway 07 points roughly 70° magnetic.
For the weather side of planning, the live METAR and TAF page for LSGS shows the current observation decoded line by line — wind on an instrument dial, visibility, cloud layers and the resulting flight rules — refreshed continuously from official sources.
Nearest airports to Sion Airport
Distances are great-circle, measured from the field reference point — planning distances along airways or roads will run longer.
| Airport | Code | Distance |
|---|---|---|
| Aosta Corrado Gex Airport | LIMW | 54 km (29 NM) |
| Payerne Air Base | LSMP | 76 km (41 NM) |
| Bern Airport | LSZB | 78 km (42 NM) |
| Annemasse Airfield | LFLI | 82 km (44 NM) |
| Geneva International Airport | LSGG | 94 km (51 NM) |
Flight-planning notes for Sion Airport
Density altitude is the quiet performance-killer at any field: on a hot day the 1,582 ft field elevation of Sion Airport can translate into a substantially higher density altitude, stretching take-off rolls and flattening climb rates — run the numbers rather than trusting the feel of a standard day. Expect published instrument procedures, controlled airspace and clearance requirements; slots and handling may apply to general aviation traffic.
This entry is one of 13 airports and airfields we list for Switzerland — the country index on the airports hub links the rest. Coordinates above are given in both DMS and decimal degrees so they can go straight into a GPS, a flight planner or a chart plot without conversion.
Where this data comes from
The reference layer behind this page builds on the OurAirports dataset — a public-domain, community-maintained register of the world's airports that many flight planners and apps rely on — with equity records preserved from documented historical listings where the dataset is silent. Figures are carried as published: elevations as surveyed, coordinates as filed, runway dimensions as recorded. Nothing is estimated to fill a gap, and the whole layer regenerates from source on every site build, so corrections upstream arrive here automatically.
Frequently asked questions about Sion Airport
What is the ICAO code of Sion Airport?
The ICAO identifier of Sion Airport is LSGS, and its IATA code is SIR. The ICAO code is the one used in flight plans, METAR reports and aeronautical charts.
How high is Sion Airport above sea level?
Sion Airport sits at an elevation of 1,582 feet (482 metres) above mean sea level. Field elevation is the reference for pattern altitudes and for setting the altimeter on the ground.
Where exactly is Sion Airport located?
The airport lies at 46.2192, 7.3269 — in Sion, Valais, Switzerland, in the northern hemisphere. The closest listed field is Aosta Corrado Gex Airport, about 54 km away.
Does LSGS publish METAR weather reports?
Where the station reports, the current METAR and TAF for LSGS appear on its live weather page on this site, refreshed continuously from the US NWS Aviation Weather Center feed.
How long is the runway at Sion Airport?
Sion Airport has 2 runways. The longest, 07/25, measures 6,562 ft (2000 m) with a ASPH surface.