Cheap flights from Hanoi to Sihanoukville

One-way fares from $193 · HAN → KOS · prices found by travellers in the last 48 hours

Compare all dates Sihanoukville → Hanoi
Cheapest fare
$193

AirAsia · Thu, Mar 4

Cheapest month
March

from $193

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 20m

1,180 km

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Cheapest month to fly from Hanoi to Sihanoukville

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $208
  2. December 2026 $220
  3. January 2027 $210
  4. February 2027 $241
  5. March 2027 Cheapest $193

Cheapest dates in March 2027

The lowest fares we've seen for each day, cheapest first.

AirAsia
Depart21:00 Thu, Mar 4HAN → KOS 5h 10m · 1 stop
$193one way, per person
View deal
AirAsia
Depart21:00 Sun, Mar 7HAN → KOS 5h 10m · 1 stop
$193one way, per person
View deal
AirAsia
Depart21:00 Thu, Mar 18HAN → KOS 5h 10m · 1 stop
$194one way, per person
View deal
AirAsia
Depart08:55 Mon, Mar 8HAN → KOS 5h 15m · 1 stop
$213one way, per person
View deal
AirAsia
Depart08:55 Tue, Mar 9HAN → KOS 5h 15m · 1 stop
$213one way, per person
View deal
AirAsia
Depart21:00 Wed, Mar 17HAN → KOS 5h 10m · 1 stop
$220one way, per person
View deal
Vietjet
Depart22:25 Fri, Mar 12HAN → KOS 3h 20m · 1 stop
$221one way, per person
View deal
Vietjet
Depart22:25 Sun, Mar 14HAN → KOS 3h 20m · 1 stop
$221one way, per person
View deal
See every date in March 2027 →

Plan the rest of your trip to Sihanoukville

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in SihanoukvilleCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in SihanoukvilleTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in SihanoukvillePre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in SihanoukvilleCompare rental cars from major brands on EconomyBookings Compare cars →

Stay connected

eSIM for CambodiaMobile data from the moment you land, by Airalo Get eSIM →

About flights from Hanoi to Sihanoukville

Hanoi (HAN) and Sihanoukville (KOS) are about 1,180 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 20m. Over the next few months, one-way fares start from $193, and March 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Hanoi to Sihanoukville?

The cheapest one-way fare we've seen recently is $193 with AirAsia, departing Thursday, March 4, 2027. Over the coming months, the lowest fare in each month ranges from $193 to $241.

What is the cheapest month to fly from Hanoi to Sihanoukville?

March 2027 currently has the lowest fares, from $193 one way.

Are there direct flights from Hanoi to Sihanoukville?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Hanoi to Sihanoukville?

The quickest journey we've seen takes about 3h 20m. Hanoi and Sihanoukville are around 1,180 km apart.

Which airlines fly from Hanoi to Sihanoukville?

Recent fares on this route were with Batik Air Malaysia, Vietjet, AirAsia and Vietnam Airlines.

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