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St Gallen Altenrhein Airport (ACH) had nonstop service to 1 destination on 1 airline in our June 15, 2026 departure snapshot. The busiest route was to Vienna (VIE), and the largest operator here was Altenrhein Luftfahrt. 1 of those routes were international.
Route data as of June 15, 2026, based on a 5-day departures sample. Routes may have changed since this snapshot.
This schedule snapshot includes nonstop flights from ACH to 1 destination, including 1 international route. The snapshot shows about 1.4 flights per day across those routes. The busiest options start with Vienna (VIE).
All airports near Zurich (5 compared) →
1 international route in this schedule set
Austria 1
1-2/day
Embraer E-Jet
Ranked by destinations served, then daily frequency.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
St Gallen Altenrhein Airport (ACH / LSZR) is located in Altenrhein, Switzerland.
The IATA code is ACH. The ICAO code is LSZR.
The busiest scheduled route from ACH in our June 15, 2026 departure data was ACH to VIE (Vienna), with 1-2/day.
Altenrhein Luftfahrt was the largest operator in our ACH schedule data, serving 1 destination with 1-2/day.
This schedule snapshot includes 1 international route and 0 domestic routes from ACH.
1 airlines operated at ACH in our June 15, 2026 snapshot. Top carriers include Altenrhein Luftfahrt.
This schedule snapshot includes direct flights from ACH to 1 destinations including Vienna.
View live arrivals and departures at ACH on FlightRadar24.
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