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STL to AOU: distance & flight time
St. Louis (St Louis Lambert International Airport) → Attopeu (Attopeu Airport)
8,573 mi
13,796 km · 7,449 nm
17h 17m
estimated nonstop flight time
—
time difference · heading north
See live STL→AOU fares Phone-only fares on this route — call free
Flight time details
8,573 miles nonstop takes roughly 17h 17m 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
- STL — St Louis Lambert International Airport · St. Louis, United States
- AOU — Attopeu Airport · Attopeu, Laos
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 AOU
- VNA · Saravane Airport68 mi away
- PKZ · Pakse International Airport73 mi away
- RBE · Ratanakiri Airport76 mi away
- PXU · Pleiku Airport98 mi away
Frequently asked questions
How far is STL from AOU?
The flight distance from St. Louis (STL) to Attopeu (AOU) is 8,573 miles (13,796 km, 7,449 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to AOU?
A nonstop flight takes about 17h 17m 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 STL to AOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–AOU that never appear on search engines, with no booking fees.