Sihanoukville to Hanoi KOS → HAN
Sihanouk International Airport (KOS) → Noi Bai International Airport (HAN)
The cheapest one-way found recently is $231 with Air Cambodia, 5 Dec, found yesterday.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $230 to $237.
Cheapest one-way found recently
$231
5 Dec · Air Cambodia
Sihanouk International Airport (KOS) → Noi Bai International Airport (HAN)
Leaves 10:15 a.m. · 10 h 35 min trip
1 stop
found yesterday
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$231 5 Decfound yesterdayOpen this trip
$227 10 Decfound 6 days agoOpen this trip
What have prices looked like?
Over 23 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $202 to $258.
23 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 4 departure dates from 5 Dec to 10 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 2 other departure dates within 3 days of 5 Dec, and none is cheaper.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 5 Dec | $231 | Air Cambodia | Sihanouk International Airport (KOS) → Noi Bai International Airport (HAN) | 1 stop | found yesterday | Open this trip |
| 6 Dec | $236 | Air Cambodia | Sihanouk International Airport (KOS) → Noi Bai International Airport (HAN) | 1 stop | found yesterday | Open this trip |
| 8 Dec | $241 | Air Cambodia | Sihanouk International Airport (KOS) → Noi Bai International Airport (HAN) | 1 stop | found yesterday | Open this trip |
| 10 Dec | $227 | Cambodia Airways | Sihanouk International Airport (KOS) → Noi Bai International Airport (HAN) | 1 stop | found 6 days ago | Open this trip |
Airlines on the cheapest dates: Air Cambodia, Cambodia Airways.
Premium cabin fares from Sihanoukville to Hanoi
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 5 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Sihanoukville to Hanoi?
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (23 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $218 | $209 | Cheapest seen | 12 |
| 90–179 days | $228 | $202 | +5% | 9 |
| 180+ days | $258 | $258 | +18% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Phu Quoc → Hanoi
68 km from Sihanoukville
$72
23 Dec – 17 Jan 2027 · PQC → HAN · out nonstop, back nonstop
found 5 hours ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Phu Quoc → Hanoi
68 km from Sihanoukville
$34
$197 less than flying from Sihanoukville
22 Feb 2027 · PQC → HAN · nonstop
found yesterday
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest one-way found recently is for 5 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work