At One Place

What airport is DUB?

DUB is
Dublin Airport
Dublin, Ireland

Why the code is DUB

The first three letters of Dublin.

The airport authority or a contemporaneous record states this directly.

The airport

IATA code
DUB
ICAO code
EIDW
Airport
Dublin Airport
City
Dublin, Ireland
Code origin
Documented

Dublin has US Customs and Border Protection preclearance, so passengers to the United States clear immigration in Ireland and land domestically. Only a handful of airports outside the Americas have this, and Dublin and Shannon were the first in Europe.

The other code, EIDW

Every airport has two codes. The three-letter IATA code, DUB, is the one on your boarding pass and your luggage tag, and it is assigned for commercial use. The four-letter ICAO code, EIDW, 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 EIDW looks nothing like DUB.

Common questions

What airport is DUB?
Dublin Airport, in Dublin, Ireland.
Why is Dublin's airport called DUB?
The first three letters of Dublin.
What is the difference between DUB and EIDW?
DUB is the IATA code, used commercially — tickets, timetables, luggage tags. EIDW is the ICAO code, used operationally by pilots and air traffic control, and assigned geographically by region.

Related pages

Sources

  1. OurAirports — OurAirports (Public domain)

How these figures are compiled and checked