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ALN to XSP: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Singapore (Seletar Airport)
9,515 mi
15,313 km · 8,268 nm
19h 7m
estimated nonstop flight time
—
time difference · heading north
See live ALN→XSP fares Phone-only fares on this route — call free
Flight time details
9,515 miles nonstop takes roughly 19h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ALN — St Louis Regional Airport · Alton/St Louis, United States
- XSP — Seletar 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 ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Near XSP
- SIN · Singapore Changi Airport10 mi away
- QPG · Paya Lebar Air Base5 mi away
- TGA · Tengah Air Base11 mi away
- JHB · Senai International Airport21 mi away
Frequently asked questions
How far is ALN from XSP?
The flight distance from Alton/St Louis (ALN) to Singapore (XSP) is 9,515 miles (15,313 km, 8,268 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to XSP?
A nonstop flight takes about 19h 7m 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 cheapest way to fly from ALN to XSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–XSP that never appear on search engines, with no booking fees.