President Airlines: With flights connecting Phnom Penh to Siem Reap, Bangkok, Battambang, Taipei and Rattanakiri. Contact information and schedule.
Royal Khmer Airlines: A budget airline that travels around many parts of Asia, with its headquarters in Cambodia.
Siem Reap Airways International: Cambodian airline with flights connecting Bangkok, Siem Reap, Phnom Penh, Ho Chi Minh, Luang Prabang and Danang. Timetable, Discovery Airpass and contacts.