At One Place

What airport is LAX?

LAX is
Los Angeles International Airport
Los Angeles, United States

Why the code is LAX

LA plus a filler X, added when two-letter codes were extended to three in the 1930s.

The airport authority or a contemporaneous record states this directly.

The airport

IATA code
LAX
ICAO code
KLAX
Airport
Los Angeles International Airport
City
Los Angeles, United States
Opened
1930
Code origin
Documented

Airport codes started as the two-letter identifiers of the National Weather Service stations they were attached to. When the system ran out of combinations, a third letter was added, and airports whose two-letter code already worked simply appended an X. That is the whole explanation for LAX, PDX and PHX, and it is why the X means nothing at all.

The other code, KLAX

Every airport has two codes. The three-letter IATA code, LAX, is the one on your boarding pass and your luggage tag, and it is assigned for commercial use. The four-letter ICAO code, KLAX, is the one pilots and controllers use, and it is assigned geographically: the first letter or two identify the region, so every airport in the same part of the world shares a prefix. That is why KLAX looks nothing like LAX.

Common questions

What airport is LAX?
Los Angeles International Airport, in Los Angeles, United States.
Why is Los Angeles's airport called LAX?
LA plus a filler X, added when two-letter codes were extended to three in the 1930s.
What is the difference between LAX and KLAX?
LAX is the IATA code, used commercially — tickets, timetables, luggage tags. KLAX is the ICAO code, used operationally by pilots and air traffic control, and assigned geographically by region.

Related pages

Sources

  1. Official vendor product documentation — At One Place

How these figures are compiled and checked