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TGA to ALN: distance & flight time
Tengah (Tengah Air Base) → Alton/St Louis (St Louis Regional Airport)
9,520 mi
15,321 km · 8,273 nm
19h 8m
estimated nonstop flight time
—
time difference · heading north
See live TGA→ALN fares Phone-only fares on this route — call free
Flight time details
9,520 miles nonstop takes roughly 19h 8m 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
- TGA — Tengah Air Base · Tengah, Singapore
- ALN — St Louis Regional Airport · Alton/St Louis, United States
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 TGA
- SIN · Singapore Changi Airport20 mi away
- XSP · Seletar Airport11 mi away
- QPG · Paya Lebar Air Base14 mi away
- JHB · Senai International Airport18 mi away
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
Frequently asked questions
How far is TGA from ALN?
The flight distance from Tengah (TGA) to Alton/St Louis (ALN) is 9,520 miles (15,321 km, 8,273 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TGA to ALN?
A nonstop flight takes about 19h 8m 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 TGA to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TGA–ALN that never appear on search engines, with no booking fees.