Cheap flights from Sihanoukville to Phnom Penh from $223 KOS → KTI
Sihanouk International Airport (KOS) → Techo International (KTI)
The cheapest return found recently is $551 with Air Cambodia, 1 Mar 2027 – 10 Mar 2027, found 4 days ago. The cheapest one-way found recently is $223 with Air Cambodia, 15 Jan 2027, found yesterday.
- Cheapest one-way found recently
- $223, found yesterday
- Cheapest return found recently
- $551, 1 Mar 2027 to 10 Mar 2027
- Cheapest month to fly
- November 2026, one-way fares from $213 found in the last 7 days
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$551
1 Mar 2027 – 10 Mar 2027 · Air Cambodia
Sihanouk International Airport (KOS) → Techo International (KTI)
Leaves 10:15 a.m. · Return leaves 8:10 p.m. · 16 h 35 min of travel, both ways together
out 1 stop, back 1 stop
found 4 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$551 1 Mar 2027 – 10 Mar 2027found 4 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 14 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $457 to $551.
At $551, the cheapest return found recently is at the high end of that range.
14 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 return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 9-night return fares leaving within 3 days of 1 Mar 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Mar 2027 – 10 Mar 2027 | $551 | Air Cambodia | Sihanouk International Airport (KOS) → Techo International (KTI) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
Airlines on the cheapest dates: Air Cambodia.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $221 to $224.
Cheapest one-way found recently
$223
15 Jan 2027 · Air Cambodia
Sihanouk International Airport (KOS) → Techo International (KTI)
Leaves 10:15 a.m. · 5 h 35 min trip
1 stop
found yesterday
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$223 15 Jan 2027found yesterdayOpen this trip
$213 28 Novfound 5 days agoOpen this trip
What have prices looked like?
Over 47 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $136 to $279.
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 28 Nov to 24 Mar 2027, 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 1 other departure date within 3 days of 15 Jan 2027, and it is not cheaper.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 28 Nov | $213 | Air Cambodia | Sihanouk International Airport (KOS) → Techo International (KTI) | 1 stop | found 5 days ago | Open this trip |
| 14 Jan 2027 | $223 | Air Cambodia | Sihanouk International Airport (KOS) → Techo International (KTI) | 1 stop | found yesterday | Open this trip |
| 15 Jan 2027 | $223 | Air Cambodia | Sihanouk International Airport (KOS) → Techo International (KTI) | 1 stop | found yesterday | Open this trip |
| 24 Mar 2027 | $226 | Air Cambodia | Sihanouk International Airport (KOS) → Techo International (KTI) | stops unknown | found 6 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $213.
Airlines on the cheapest dates: Air Cambodia.
Premium cabin fares from Sihanoukville to Phnom Penh
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 1 Mar 2027 – 10 Mar 2027 in another cabin: Premium economy · Business · First
Today's prices for 15 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Sihanoukville to Phnom Penh?
Return
Not enough history yet: in 14 days of return prices, 24 Sept to 12 Nov, fewer than 3 booking ranges had prices on 7 days or more.
One-way
The cheapest fares were 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 12 Nov (47 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 |
|---|---|---|---|---|
| 0–6 days | $152 | $136 | Cheapest seen | 16 |
| 7–13 days | $198 | $136 | +30% | 25 |
| 30–59 days | $210 | $196 | +38% | 14 |
| 60–89 days | $224 | $223 | +47% | 12 |
| 90–179 days | $225 | $217 | +48% | 18 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Phu Quoc → Phnom Penh
68 km from Sihanoukville
$254
$297 less than flying from Sihanoukville
30 Jan 2027 – 5 Feb 2027 · PQC → KTI · out nonstop, back nonstop
found today
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 1 Mar 2027 – 10 Mar 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Sihanoukville to Phnom Penh?
The cheapest return found recently is $551 with Air Cambodia, 1 Mar 2027 to 10 Mar 2027, found 4 days ago.
How much is a one-way flight from Sihanoukville to Phnom Penh?
The cheapest one-way found recently is $223 with Air Cambodia, 15 Jan 2027, found yesterday. The cheapest one-way we hold, of any age, is $213 with Air Cambodia, 28 Nov, found 5 days ago. The cheapest one-way fare on each of 4 departure dates is usually $221 to $224.
What is the cheapest month to fly from Sihanoukville to Phnom Penh?
November 2026 is the cheapest month for a one-way, from $213, 28 Nov, found 5 days ago.
How far ahead should I book a flight from Sihanoukville to Phnom Penh?
In 47 days of prices between 24 Sept and 12 Nov, one-way fares were cheapest 0 to 6 days before departure.
How long is the flight from Sihanoukville to Phnom Penh?
The cheapest one-way found recently, with Air Cambodia on 15 Jan 2027, takes 5 h 35 min with 1 stop.
Which airlines have the cheapest flights from Sihanoukville to Phnom Penh?
Between 28 Nov and 24 Mar 2027, Air Cambodia has the cheapest one-way on all 4 departure dates we hold.
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