Skip to tool
✈ Professional PNR Converter for Travel Agents — 100% Free Travel Agent Blog →
Airport Reference

St. Louis Lambert International Airport (STL)

St. Louis, United States

IATA CodeSTL
ICAO CodeKSTL
CitySt. Louis
CountryUnited States
Time ZoneAmerica/Chicago
Coordinates38.7487, -90.3700
Elevation618 ft / 188 m above sea level
State/RegionMissouri

Booking Through STL Across GDS Systems

The same availability check looks different depending on the GDS in front of you. Here's the pattern for a generic search into STL, using STL as the destination:

Amadeus:  AN15JULLHRSTL
Sabre:    A15JUNLHRSTL
Galileo:  A/15JUNLHRSTL

Swap in the actual origin code and date for a live search — the structure (date, then city pair) stays the same across systems.

Distance & Flight Time from Other Major Hubs

Real, calculated straight-line distances (great-circle) and a rough nonstop flight-time estimate:

HubDistanceEst. Flight Time
LHR (London)6,742 km / 4,190 mi≈ 7.9h nonstop
JFK (New York)1,433 km / 890 mi≈ 1.7h nonstop
DXB (Dubai)12,055 km / 7,491 mi≈ 14.2h nonstop
SIN (Singapore)15,319 km / 9,519 mi≈ 18.0h nonstop
SYD (Sydney)14,581 km / 9,060 mi≈ 17.2h nonstop

Flight time is a rough estimate based on typical long-haul cruise speed — actual routing, wind, and aircraft type will change the real duration.

Connection Notes for STL

New York is the closest of the listed hubs to STL, at roughly 1.7 hours nonstop, while Singapore is the furthest, at roughly 18.0 hours. When an itinerary routes a client through STL as a connection point rather than a final destination, it's worth confirming minimum connection time directly with the airport or airline — this varies by terminal and by whether the connection involves a change of airline alliance.

Frequently Asked Questions

What is the IATA code for St. Louis?

The main IATA airport code for St. Louis is STL — St. Louis Lambert International Airport.

What time zone is St. Louis Lambert International Airport in?

St. Louis Lambert International Airport operates on America/Chicago time.

How does STL appear in a GDS PNR?

In a flight segment line, STL appears as the three-letter origin or destination code, e.g. a route shown as ...STL... in Amadeus, Sabre, Galileo, or Worldspan.

Which major hub is closest to STL?

Of the reference hubs listed on this page, New York is the closest to STL, at an estimated 1.7 hours nonstop flight time.

Convert a PNR Through St. Louis Lambert International Airport

Paste any PNR with a STL segment and get a client-ready itinerary in seconds, with layover times calculated using the correct time zone — free, no signup.

Try the Free Converter →