Popular airlines from Portland to Siem Reap
Nok AirNok Air
Thai AirAsiaThai AirAsia
Thai Airways InternationalThai Airways International
Thai AirAsia XThai AirAsia X
Hong Kong AirlinesHong Kong Airlines
AirAsiaAirAsia
ScootScoot
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 40% on select hotels after you book a flight*
Nearby Cities
Top Routes to Siem Reap
Expedia's Latest Trends
Hotels
Holiday Inn Bangkok Sukhumvit by IHGLong Beach Cha-Am HotelKantary House Hotel & Serviced ApartmentsHotels near Angkor WatP.D. Beach ResortVillas PatongPan Kled Villa Eco Hill ResortSpa Hotels in Don MuangVilla Chi SamuiHotel Route - Inn KawaguchikoHotels near King Mongkut's University of Technology North Bangkok - Prachinburi CampusHotels in TokyoHotels near Pub Street
Flights
*Available to Expedia members.