Hanoi to Siem Reap flights
Siem Reap lies 878 km (545 mi) south of Hanoi, in the same time zone. What the numbers say about getting there, and where to book.
A nonstop flight would take about 1 h 53 min gate to gate, based on the distance and typical cruise speed with taxi and climb allowed for; connecting itineraries add the layover on top.
| Hanoi | Siem Reap | |
|---|---|---|
| Country | Vietnam | Cambodia |
| Population | 8.1 million | 139,458 |
| Elevation | 10 m (33 ft) | 18 m (59 ft) |
| Time now | UTC+7 (Asia/Bangkok) | UTC+7 (Asia/Phnom_Penh) |
| Nearest large airport | HAN, 22 km out | SAI, 39 km out |
What changes when you arrive in Siem Reap
Crossing from Vietnam into Cambodia: money changes from the Dong to the Riels (KHR); sockets are BS 1363, Euro, NEMA 1-15; the dialling code becomes +855; the emergency number is http://www.wikidata.org/entity/Q11185210 / http://www.wikidata.org/entity/Q2807090.
Airports at each end
Leaving Hanoi
Hanoi is served by 2 airports with scheduled flights within 100 km. The closest large one is Noi Bai International Airport (HAN), 22 km (14 mi) from the centre, whose 12,466-ft runway is long enough for long-haul wide-body aircraft. The alternatives are Cat Bi International Airport (HPH, 95 km).
Arriving in Siem Reap
Siem Reap is served by 2 airports with scheduled flights within 100 km. The closest large one is Siem Reap-Angkor International Airport (SAI), 39 km (24 mi) from the centre, whose 11,827-ft runway is long enough for long-haul wide-body aircraft. The alternatives are Battambang Airport (BBM, 75 km).
| Airport | Code | From centre | Longest runway | Elevation |
|---|---|---|---|---|
| Siem Reap-Angkor International Airport | SAI | 39 km (24 mi) | 11,827 ft | 191 ft |
| Battambang Airport (regional) | BBM | 75 km (47 mi) | 5,250 ft | 59 ft |
Book a flight to Siem Reap
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Staying in Siem Reap
Live rooms and prices for Siem Reap are in the search below.
Book a hotel in Siem Reap
Live rooms and prices from our booking partner, booked and paid for here. Free cancellation is marked where it applies.
Common questions
How far is Siem Reap from Hanoi?
878 km (545 mi) in a straight line, south of Hanoi.
How long does it take to get from Hanoi to Siem Reap by air?
About 1 h 53 min, estimated from distance and typical speeds for a nonstop flight. Timetables and traffic decide the real figure.
Is there a time difference between Hanoi and Siem Reap?
No, both are on the same offset at the moment.
Which airports are used for Hanoi to Siem Reap flights?
Typically Noi Bai International Airport (HAN) to Siem Reap-Angkor International Airport (SAI); Siem Reap also has BBM.
What currency do I need in Siem Reap?
The Riels (KHR).
Where these facts come from
- GeoNames (CC BY 4.0): population, elevation, time zone, postal codes
- Wikidata (CC0): area, sister cities, visitor numbers, heritage listings, stations and ports
- OurAirports (public domain): airports, runways
- Natural Earth (public domain): map outlines
Data compiled 14 September 2026. Hotel and hostel figures are from our booking partner’s catalogue on that date. Journey times on this page are estimates from distance, not timetables; check the operator before you rely on one.