LON City Code: London IATA Airports
LON identifies the city of London, United Kingdom, in IATA coding. Airport codes in this dataset for that city: LHR, LGW, STN. A city code is not always the same as an airport code.
Overview
LON is the IATA city code stored for London, United Kingdom (GB). City codes group one or more airports. LON is a metro code covering LHR, LGW, STN. That is different from using a single airport as if it were the city. Airport names stored: LHR London Heathrow Airport; LGW London Gatwick Airport; STN London Stansted Airport. GDS availability and some pricing entries use the city code when the traveller can use any airport in the metro. Ticketed segments still print a specific airport such as JFK rather than NYC. This page does not list every airfield in the metropolitan area, only rows in the catalog. Timezone and ICAO live on each airport page.
How to use this page
- Search LON or London in the city code finder.
- Open each airport page for ICAO and timezone.
- Parse the actual PNR to see which airport was ticketed.
Example
Example: a client says they fly into LON. Ask which airport: LHR, LGW, STN. A PNR segment will show one of those airport codes, not always LON.
FAQs
What is the LON city code?
LON is stored as the IATA city code for London, United Kingdom.
Is LON an airport?
No. LON is the city. Airports in this dataset: LHR, LGW, STN.
Which airports are in London?
Stored airports: LHR, LGW, STN. Others are unavailable in this dataset.
How is LON used in a GDS?
City codes appear in some availability and pricing entries. Ticketed segments use a specific airport code.
Is LON the same as NYC-style metro codes?
Yes, LON groups multiple airports like other metro codes.
What country is LON?
United Kingdom (GB).
Can I convert a PNR that uses this city?
Yes. Paste the itinerary into the PNR parser. The ticketed airport codes on segments are what get parsed.
Are these all airports in the city?
No. Only airports present in this product dataset are listed.
How do I open LON airport pages?
Use the airport links for LHR, LGW, STN.
Where is the timezone?
On each airport page (IANA zone), not on the city code itself.
Do you invent missing city codes?
No. Unknown codes are marked unavailable.
When was this updated?
Content follows the stored city/airport catalog. Template date 17 Aug 2026.