Here is list of airlines with Departures and Arrivals at Singapore Changi Airport Terminal One, their IATA code (flight code), ICAO code(airline code), as well as their their base country and destination cities.

Air China (China) CA/CCA – Beijing-Capital, Chengdu, Xiamen

Air France (France) AF/AFR – Paris-Charles de Gaulle

Air Mauritius (Mauritius) MK/MAU – Kuala Lumpur, Mauritius

Air Niugini (Papua New Guinea) PX/ANG – Port Moresby

Air Seychelles (Seychelles) HM/SEY – Mahe

Air Zimbabwe (Zimbabwe) UM/AZW – Beijing-Capital, Harare

AirAsia (Malaysia) AK/AXM – Kuala Lumpur, Kuching, Kota Kinabalu, Langkawi, Penang

Bangkok Airways (Thailand) PG/BKP – Koh Samui

Biman Bangladesh Airlines (Bangladesh) BG/BBC – Bangkok-Suvarnabhumi, Dhaka

British Airways (UK – United Kingdom) BA/BAW – London-Heathrow, Sydney

Cathay Pacific (Hong Kong) CX/CPA – Bangkok-Suvarnabhumi, Colombo, Hong Kong

China Airlines (Taiwan) CI/CAL – Kaohsiung, Surabaya, Taipei-Taoyuan

China Southern Airlines (China) CZ/CSN – Guangzhou, Shenyang

Emirates Airline (UAE – United Arab Emirates) EK/UAE – Brisbane, Colombo, Dubai, Melbourne

EVA Air (Taiwan) BR/EVA – Taipei-Taoyuan

Garuda Indonesia (Indonesia) GA/GIA – Beijing-Capital, Denpasar/Bali, Ho Chi Minh City, Jakarta-Soekarno-Hatta, Medan, Pekanbaru, Semarang, Shanghai-Pudong, Surabaya, Yogyakarta

Indonesia AirAsia (Indonesia) QZ/AWQ – Bandung, Denpasar/Bali, Jakarta-Soekarno-Hatta, Pekanbaru, Surabaya [begins August 16], Yogyakarta

Japan Airlines (Japan) JL/JAL – Kuala Lumpur, Osaka-Kansai, Tokyo-Narita

Jetstar Airways (Australia) JQ/JST – Cairns, Darwin, Perth, Melbourne

Jetstar Asia Airways (Singapore) 3K/JSA – Bangkok-Suvarnabhumi, Ho Chi Minh City, Hong Kong, Kota Kinabalu, Kuala Lumpur, Kuching, Macau, Manila, Phnom Penh, Penang [begins 1 July], Siem Reap, Taipei-Taoyuan, Yangon

KLM Royal Dutch Airlines (Netherland / Holland) KL/KLM – Amsterdam

Lion Air (Indonesia) JT/LNI – Denpasar/Bali, Ho Chi Minh City, Jakarta-Soekarno-Hatta

Northwest Airlines (USA – United States of America) NW/NWA – Tokyo-Narita

Qantas Airways (Australia) QF/QFA – Adelaide, Brisbane, Frankfurt, London-Heathrow, Melbourne, Mumbai, Perth, Sydney

Saudi Arabian Airlines (Saudi Arabia) SV/SVA – Jakarta-Soekarno-Hatta, Jeddah, Riyadh

SriLankan Airlines (Sri Lanka) UL/ALK – Colombo, Kuala Lumpur

Thai AirAsia (Thailand) FD/AIQ – Bangkok-Suvarnabhumi, Phuket

Thai Airways International (Thailand) TG/THA – Bangkok-Suvarnabhumi

Turkish Airlines (Turkey) TK/THY – Istanbul-Atat?rk

Valuair (Singapore) VF/VLU – Denpasar/Bali, Jakarta-Soekarno-Hatta, Medan, Surabaya

Vietnam Airlines (Vietnam) VN/HVN – Hanoi, Ho Chi Minh City

Xiamen Airlines (China) MF/CXA – Fuzhou, Hangzhou, Tianjin, Xiamen