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ACH to REP: distance & flight time
Altenrhein (St Gallen Altenrhein Airport) → Siem-reap (Siem Reap International Airport)
5,733 mi
9,227 km · 4,982 nm
11h 43m
estimated nonstop flight time
+5h
time difference · heading east
See live ACH→REP fares Phone-only fares on this route — call free
Flight time details
5,733 miles nonstop takes roughly 11h 43m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- ACH — St Gallen Altenrhein Airport · Altenrhein, Switzerland
- REP — Siem Reap International Airport · Siem-reap, Cambodia
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 ACH
- HOH · Hohenems-Dornbirn Airport9 mi away
- FDH · Friedrichshafen Airport13 mi away
- ZRH · Zürich Airport47 mi away
- FMM · Memmingen Allgau Airport47 mi away
Near REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is ACH from REP?
The flight distance from Altenrhein (ACH) to Siem-reap (REP) is 5,733 miles (9,227 km, 4,982 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ACH to REP?
A nonstop flight takes about 11h 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 Altenrhein and Siem-reap?
Siem-reap is 5 hours ahead of Altenrhein.
What is the cheapest way to fly from ACH to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ACH–REP that never appear on search engines, with no booking fees.