Cheap Flights from Osaka to Siem Reap : ✈️ OSA→SAI

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until December 4 with our Black Friday deals. Stay by December 15, 2025.
Unlock Black Friday deals
*Available to Expedia members.