Scheduled airlines
| Airline | Image | IATA | ICAO | Callsign | Commenced operations |
|---|---|---|---|---|---|
| Jetstar Asia Airways |  | 3K | JSA | JETSTAR ASIA | 2004 |
| Scoot |  | TR | TGW | SCOOTER | 2012 |
| Singapore Airlines |  | SQ | SIA | SINGAPORE | 1972 |
This is a list of airlines which have a current Air Operator Certificate issued by the Civil Aviation Authority of Singapore.
| Airline | Image | IATA | ICAO | Callsign | Commenced operations |
|---|---|---|---|---|---|
| Jetstar Asia Airways | | 3K | JSA | JETSTAR ASIA | 2004 |
| Scoot | | TR | TGW | SCOOTER | 2012 |
| Singapore Airlines | | SQ | SIA | SINGAPORE | 1972 |
| Airline | Image | IATA | ICAO | Callsign | Commenced operations |
|---|---|---|---|---|---|
| Singapore Airlines Cargo |  | SQ | SQC | SINGAPORE | 2001 |
| Full service | |
|---|---|
| Low-cost | |
| Cargo airlines | |
| Defunct | |
An airline alliance is an aviation industry arrangement between two or more airlines agreeing to cooperate on a substantial level. Alliances may provide marketing branding to facilitate travelers making inter-airline codeshare connections within countries. This branding may involve unified aircraft liveries of member aircraft.
Lists of airlines cover existing and defunct airlines. Complete lists are given in alphabetical sequence by the name of the continent from which they operate. Lists are also given by size, by business model and by other characteristics. There are over 5,000 airlines with ICAO codes.
