# Sankt Gallen Altenrhein Airport (ACH / LSZR) **Sankt Gallen Altenrhein Airport** (IATA: ACH, ICAO: LSZR) is a medium airport in St. Gallen, Switzerland. It opened in 1927. It has 2 runways; the longest is 1,455 m (4,774 ft). In 2025 it handled 69 thousand passengers. Web page: https://dromopedia.com/airports/lszr ## At a glance - IATA / ICAO: ACH / LSZR - Type: Medium airport - Serves: St. Gallen, Switzerland - Opened: 1927 - Elevation: 398 m / 1,306 ft - Coordinates: 47.4850, 9.5608 - Runways: 2 - Longest runway: 1,455 m / 4,774 ft - Passengers: 68,978 (2025) - Time zone: UTC+1/+2 · Europe/Zurich - Website: https://www.peoples.ch/airport-st-gallen-altenrhein - Wikipedia: https://en.wikipedia.org/wiki/St._Gallen%E2%80%93Altenrhein_Airport (24 languages) - Wikidata: https://www.wikidata.org/wiki/Q689836 - Weather station: LSZR - Ident: LSZR ## Timeline - 1927: Sankt Gallen Altenrhein Airport opens. - 24 Jan 1994: 1994 Lake Constance Cessna 425 crash. 3 killed. ## Runways | Ident | Length | Width | Surface | True headings | Lighted | | --- | --- | --- | --- | --- | --- | | 10/28 | 1,455 m / 4,774 ft | 30 m / 98 ft | Asphalt | 099° / 279° | yes | | 10L/28R | 810 m / 2,657 ft | 20 m / 65 ft | Grass | 099° / 279° | | ## Passengers per year | Year | Passengers | Source | | --- | --- | --- | | 2014 | 84,098 | Eurostat | | 2015 | 91,902 | Eurostat | | 2016 | 98,827 | Eurostat | | 2017 | 109,624 | Eurostat | | 2018 | 113,295 | Eurostat | | 2019 | 107,485 | Eurostat | | 2020 | 22,414 | Eurostat | | 2021 | 32,168 | Eurostat | | 2022 | 56,457 | Eurostat | | 2023 | 67,159 | Eurostat | | 2024 | 69,430 | Eurostat | | 2025 | 68,978 | Eurostat | ## Routes 12 destinations in 5 countries. From the airport's Wikipedia article. ### Year-round (1) - [VIE](https://dromopedia.com/airports/loww.md) Vienna International Airport · Austria · 528 km / 328 mi · People's ### Seasonal (9) - [PUY](https://dromopedia.com/airports/ldpl.md) Pula Airport · Croatia · 442 km / 275 mi · People's - [OLB](https://dromopedia.com/airports/lieo.md) Olbia Costa Smeralda Airport · Italy · 732 km / 455 mi · People's - [NAP](https://dromopedia.com/airports/lirn.md) Naples International Airport · Italy · 825 km / 513 mi · People's - [CAG](https://dromopedia.com/airports/liee.md) Cagliari Elmas Airport · Italy · 916 km / 569 mi · People's - [MAH](https://dromopedia.com/airports/lemh.md) Menorca Airport · Spain · 950 km / 590 mi · People's - [PMI](https://dromopedia.com/airports/lepa.md) Palma de Mallorca Airport · Spain · 1,039 km / 646 mi · People's - [IBZ](https://dromopedia.com/airports/leib.md) Ibiza Airport · Spain · 1,164 km / 723 mi · People's - [PVK](https://dromopedia.com/airports/lgpz.md) Aktion National Airport · Greece · 1,313 km / 816 mi · People's - [EFL](https://dromopedia.com/airports/lgkf.md) Kefallinia Airport · Greece · 1,369 km / 851 mi · People's ### Seasonal charter (2) - [ZAD](https://dromopedia.com/airports/ldzd.md) Zadar Airport · Croatia · 586 km / 364 mi · People's - [SUF](https://dromopedia.com/airports/lica.md) Lamezia Terme Sant'Eufemia International Airport · Italy · 1,096 km / 681 mi · People's ## Airlines The figure is how many destinations each airline flies from ACH, as the routes above have them. Hubs from Wikidata. ### Hub airlines (2) - PE [People's](https://dromopedia.com/airlines/peoples) · 12 - FSE [Alpine Flight Service](https://dromopedia.com/airlines/alpine-flight-service) ## Rankings Ranked among 48,075 open airports; = marks a shared place. | Measure | Value | World | Region | Country | | --- | --- | --- | --- | --- | | Passengers | 69K (2025) | #1,950 of 3,974 | #417 in Europe | #3 in CH | | Longest runway | 1,455 m / 4,774 ft | =7,508 of 29,858 | #1,004 in Europe | #15 in CH | | Elevation | 398 m / 1,306 ft | =13,782 of 43,403 | =1,057 in Europe | #55 in CH | | Age | Opened 1927 | =280 of 15,079 | =204 in Europe | =6 in CH | | Runways | 2 | =715 of 29,978 | =135 in Europe | =5 in CH | ## Radio frequencies | Type | Description | MHz | | --- | --- | --- | | ACC | ZURICH RADAR | 133.900 | | ARR | ZURICH ARR | 119.925 | | ATIS | ATIS | 123.775 | | GND | GND | 121.800 | | TWR | TWR | 118.650 | | FIS | Zurich Information (en,ge) | 124.700 | ## Nearby airports - [FDH](https://dromopedia.com/airports/edny.md) Bodensee Airport Friedrichshafen · 21 km / 13 mi - [EDTM](https://dromopedia.com/airports/edtm.md) Mengen-Hohentengen Airfield · 65 km / 40 mi - [LSMD](https://dromopedia.com/airports/lsmd.md) Dübendorf Air Base · 69 km / 43 mi - [FMM](https://dromopedia.com/airports/edja.md) Memmingen Allgau Airport · 75 km / 47 mi - [ZRH](https://dromopedia.com/airports/lszh.md) Zürich Airport · 76 km / 47 mi - [ETHL](https://dromopedia.com/airports/ethl.md) Laupheim Air Base · 86 km / 53 mi ## Sources - [Eurostat](https://ec.europa.eu/eurostat/databrowser/view/avia_paoa/default/table): Source: Eurostat (avia_paoa) (Eurostat reuse policy (CC BY 4.0)) - [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government)) - [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain) - [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0) - [Wikipedia: “St. Gallen–Altenrhein Airport”](https://en.wikipedia.org/w/index.php?title=St._Gallen–Altenrhein_Airport&oldid=1363122509), revision of 8 Jul 2026 (CC BY-SA 4.0) - [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0) - Every figure with its source: https://dromopedia.com/airports/lszr/data