SQ Airline Code: Singapore Airlines IATA & ICAO
Singapore Airlines is stored in this dataset as IATA code SQ and ICAO code SIA, based in Singapore. GDS segment lines print the IATA code before the flight number. Live routes, fares and baggage policies are not in this dataset.
Overview
SQ is the IATA airline designator stored for Singapore Airlines. ICAO is SIA. Country of record: Singapore. On a cryptic GDS line the IATA code sits immediately before the flight number, for example SQ 456. Agents should not confuse SQ (two characters, sometimes a digit such as 6E) with SIA (three letters). This code page does not list routes, alliances, baggage rules, or fleet. Those facts are not in the dataset. Other Singapore carriers stored here: TR (Scoot). To decode a full itinerary that markets SQ, paste the PNR into the parser.
How to use this page
- Find SQ at the start of the flight line in the PNR.
- Paste the full itinerary into the PNR parser (or the GDS-specific parser if you know the host).
- Confirm the carrier name resolves to Singapore Airlines.
- Do not add baggage or meal claims that the PNR did not print.
Example
Example segment: 2 SQ 456 H 26OCT 5 WLGAKL HK1 1945 2050 The parser should set marketing carrier SQ (Singapore Airlines) and flight 456. Class H is a fare bucket, not proof of cabin without the booking-class tool.
FAQs
What does SQ mean?
SQ is the IATA airline code stored for Singapore Airlines.
What airline is SQ?
Singapore Airlines, country of record Singapore.
What is the ICAO code for Singapore Airlines?
SIA.
Is SQ the same as SIA?
No. Tickets and GDS segments use SQ. Flight plans use SIA.
Where is Singapore Airlines based?
This dataset lists Singapore. Headquarters address is not stored.
How do I parse a SQ itinerary?
Paste the GDS text into the PNR parser. Lines beginning with SQ plus a flight number become segments.
Does this page show Singapore Airlines schedules?
No. Schedules are not in the dataset.
What baggage does SQ allow?
Only what the pasted PNR prints (for example 2PC). Public policy pages are not stored here.
Are there other airlines from Singapore?
Stored peers: TR (Scoot).
Can SQ include a number?
Some IATA codes include a digit (for example 6E). This catalog stores those codes when present.
How is Singapore Airlines shown in a PNR?
Usually as marketing carrier SQ before the flight number, not the full name.
Where does this information come from?
The product airline table used by the parser. Last template update 17 Aug 2026. Unverified operational claims are omitted.