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STL to ACH: distance & flight time
St. Louis (St Louis Lambert International Airport) → Altenrhein (St Gallen Altenrhein Airport)
4,716 mi
7,590 km · 4,098 nm
9h 43m
estimated nonstop flight time
+7h
time difference · heading northeast
See live STL→ACH fares Phone-only fares on this route — call free
Flight time details
4,716 miles nonstop takes roughly 9h 43m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- ACH — St Gallen Altenrhein Airport · Altenrhein, Switzerland
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near ACH
- HOH · Hohenems-Dornbirn Airport9 mi away
- FDH · Friedrichshafen Airport13 mi away
- ZRH · Zürich Airport47 mi away
- FMM · Memmingen Allgau Airport47 mi away
Frequently asked questions
How far is STL from ACH?
The flight distance from St. Louis (STL) to Altenrhein (ACH) is 4,716 miles (7,590 km, 4,098 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to ACH?
A nonstop flight takes about 9h 43m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between St. Louis and Altenrhein?
Altenrhein is 7 hours ahead of St. Louis.
What is the cheapest way to fly from STL to ACH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–ACH that never appear on search engines, with no booking fees.