Asian flag carrier based in Singapore, and is a member of Star Alliance.
| IATA Code | SQ |
|---|---|
| ICAO Code | SIA |
| Callsign | SINGAPORE |
| Operating Status | Active (per OpenFlights airline registry) |
| Country | Singapore |
| Category | Asian flag carrier |
| Airline Alliance | Star Alliance |
When you see a segment line like this in a PNR, the airline code identifies Singapore Airlines:
2 SQ 587 Y 15JUL 2*JFKLHR HK1 800A 2000P
The two-letter code SQ at the start of the segment line is Singapore Airlines's IATA code — every flight segment operated by Singapore Airlines in a GDS PNR (Amadeus, Sabre, Galileo, or Worldspan) begins with this code, followed by the flight number.
Singapore Airlines is a asian flag carrier, based in Singapore, and is a member of Star Alliance. Its ICAO code, SIA, is used for air traffic control and flight planning, while its radio callsign is “SINGAPORE”.
Once a SQ segment is sold, the fare quote and ticketing entry differ by system. The starting point in each is:
Amadeus: FXP Sabre: WPNCB Galileo: FXP
Each of these prices the itinerary using the lowest applicable fare for the SQ segment(s) in the PNR — the exact fare basis and rules still need to be checked against Singapore Airlines's current fare filing, since GDS pricing reflects what's filed, not a fixed rate.
As a Star Alliance member, Singapore Airlines participates in the alliance's interline agreements — member airlines generally honor each other's status tiers for priority boarding and lounge access, and allow interline and codeshare itineraries to be ticketed on a single PNR. In practice, this means a client's itinerary can often mix Singapore Airlines with other Star Alliance carriers on one ticket, which matters when pricing multi-carrier routings or handling irregular operations (delays, misconnections) that involve more than one airline.
Like most airlines, Singapore Airlines's fare classes follow the standard GDS booking-class letter system. See our complete booking class guide for what each letter (F, J, Y, and so on) typically means.
Singapore Airlines's IATA code is SQ. This two-letter code appears at the start of every flight segment operated by Singapore Airlines in a GDS PNR.
Singapore Airlines's ICAO code is SIA. The ICAO code is a separate, usually three-letter identifier used mainly in air traffic control and flight planning, distinct from the IATA code travel agents see in a PNR.
Paste the raw PNR text into PNRGenius and it will automatically detect Singapore Airlines's segments (marked with the SQ code) and build a clean, client-ready itinerary in seconds.
Singapore Airlines is a member of Star Alliance.
Yes — as a Star Alliance member, Singapore Airlines generally allows interline and codeshare itineraries with other Star Alliance carriers to be ticketed together, though the specific fare rules still depend on the fare basis used.
Paste any PNR with a SQ segment and get a client-ready itinerary in seconds — free, no signup.
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