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ACH to SIN: distance & flight time
Altenrhein (St Gallen Altenrhein Airport) → Singapore (Singapore Changi Airport)
6,356 mi
10,230 km · 5,524 nm
12h 56m
estimated nonstop flight time
+6h
time difference · heading east
See live ACH→SIN fares Phone-only fares on this route — call free
Flight time details
6,356 miles nonstop takes roughly 12h 56m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- ACH — St Gallen Altenrhein Airport · Altenrhein, Switzerland
- SIN — Singapore Changi Airport · Singapore, Singapore
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 SIN
- QPG · Paya Lebar Air Base6 mi away
- XSP · Seletar Airport10 mi away
- BTH · Hang Nadim International Airport18 mi away
- TGA · Tengah Air Base20 mi away
Frequently asked questions
How far is ACH from SIN?
The flight distance from Altenrhein (ACH) to Singapore (SIN) is 6,356 miles (10,230 km, 5,524 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ACH to SIN?
A nonstop flight takes about 12h 56m 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 Singapore?
Singapore is 6 hours ahead of Altenrhein.
What is the cheapest way to fly from ACH to SIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ACH–SIN that never appear on search engines, with no booking fees.