Cheap flights from Hanoi to Siem Reap
from 76 US$
From 158 USD — compare hundreds of airlines
The cheapest month is usually 2026-09 · 76 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Hanoi to Siem Reap, a about 893 km route (around 1h 37m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Vietnam Airlines operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Hanoi to Siem Reap?
It's usually 2026-09, from 76 USD. Use the price calendar to compare other dates.
How long is the flight from Hanoi to Siem Reap?
A nonstop flight takes about 1h 37m and covers around 893 km. Connecting itineraries take longer.
Are there direct flights from Hanoi to Siem Reap?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Hanoi to Siem Reap?
Vietnam Airlines operate this route, among others. Compare them all in the results.
When should I book Hanoi–Siem Reap flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
Compare your dates in seconds
Hanoi → Siem Reap · Live fares from 100+ sites — free, with no hidden fees.