Sihanoukville to Siem Reap KOS → SAI
Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI)
The cheapest return found recently is $250 with Air Cambodia, 23 Jan 2027 – 26 Jan 2027, found yesterday. The cheapest one-way found recently is $84 with Air Cambodia, 20 Oct, found today.
Return
The cheapest return fare on each of 4 departure dates is usually $242 to $313.
Cheapest return found recently
$250
23 Jan 2027 – 26 Jan 2027 · Air Cambodia
Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI)
Leaves 11:05 a.m. · Return leaves 9:15 a.m. · 2 h 10 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Cheapest nonstop return
$250
23 Jan 2027 – 26 Jan 2027 · Air Cambodia
Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI)
Leaves 11:05 a.m. · Return leaves 9:15 a.m. · 2 h 10 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Found recently, and the cheapest we hold
$250 23 Jan 2027 – 26 Jan 2027found yesterdaySee prices for these dates
$219 21 Oct – 22 Octfound 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $185 to $234.
At $250, the cheapest return found recently is above that range.
25 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?
Compared with the cheapest return fare on each of 4 departure dates from 21 Oct to 23 Jan 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?
We hold no other 3-night return fares leaving within 3 days of 23 Jan 2027 to compare.
Every date we hold
8 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Oct – 22 Oct | $219 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 15 Nov – 18 Nov | $400 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | out nonstop, back 1 stop | found 5 days ago | See prices for these dates |
| 17 Nov – 19 Nov | $284 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 23 Jan 2027 – 26 Jan 2027 | $250 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | out nonstop, back nonstop | found yesterday | See prices for these dates |
Which month looks cheapest?
October 2026 is the cheapest month — from $219.
Airlines on the cheapest dates: Air Cambodia.
One-way
The cheapest one-way fare on each of 34 departure dates is usually $119 to $122.
Cheapest one-way found recently
$84
20 Oct · Air Cambodia
Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI)
Leaves 11:00 a.m. · 1 h trip
nonstop
found today
Cheapest nonstop one-way
$84
20 Oct · Air Cambodia
Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI)
Leaves 11:00 a.m. · 1 h trip
nonstop
found today
Found recently, and the cheapest we hold
$84 20 Octfound todayOpen this trip
$83 25 Octfound 3 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $43 to $83.
At $84, the cheapest one-way found recently is above that range.
25 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 34 departure dates from 20 Oct to 11 Jul 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 2 other departure dates within 3 days of 20 Oct, and none is cheaper.
Every date we hold
40 fares on 34 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Oct | $84 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found today | Open this trip |
| 21 Oct | $97 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 2 days ago | Open this trip |
| 22 Oct | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 25 Oct | $83 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 3 days ago | Open this trip |
| 3 Nov | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 4 Nov | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 9 Nov | $121 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 6 days ago | Open this trip |
| 13 Nov | $106 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 21 Nov | $121 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 5 days ago | Open this trip |
| 22 Nov | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 23 Nov | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 3 Dec | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 7 Dec | $175 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 5 days ago | Open this trip |
| 23 Dec | $107 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 2 days ago | Open this trip |
| 12 Jan 2027 | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 13 Jan 2027 | $122 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 15 Jan 2027 | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 17 Jan 2027 | $124 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 18 Jan 2027 | $132 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 23 Jan 2027 | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 25 Jan 2027 | $132 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 27 Jan 2027 | $119 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 30 Jan 2027 | $119 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 4 Feb 2027 | $133 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 5 Feb 2027 | $134 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 6 days ago | Open this trip |
| 10 Feb 2027 | $122 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 2 days ago | Open this trip |
| 19 Feb 2027 | $121 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 3 days ago | Open this trip |
| 9 Mar 2027 | $113 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 11 Mar 2027 | $108 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 4 days ago | Open this trip |
| 20 Mar 2027 | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 3 days ago | Open this trip |
| 26 Mar 2027 | $120 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 3 days ago | Open this trip |
| 30 Mar 2027 | $118 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 3 days ago | Open this trip |
| 3 May 2027 | $134 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found yesterday | Open this trip |
| 11 Jul 2027 | $122 | Air Cambodia | Sihanouk International Airport (KOS) → Siem Reap International Airport (SAI) | nonstop | found 3 days ago | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $83.
Airlines on the cheapest dates: Air Cambodia.
Premium cabin fares from Sihanoukville to Siem Reap
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 23 Jan 2027 – 26 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 20 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Sihanoukville to Siem Reap?
Return
Fares 7 to 13 days before departure were typically 8% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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 | $219 | $186 | +8% | 13 |
| 7–13 days | $203 | $185 | Cheapest seen | 12 |
| 14–29 days | $277 | $185 | +37% | 20 |
| 30–59 days | $269 | $232 | +33% | 20 |
| 60–89 days | $245 | $212 | +21% | 19 |
| 90–179 days | $246 | $213 | +22% | 25 |
| 180+ days | $262 | $262 | +29% | 11 |
One-way
Fares 14 to 29 days before departure were typically 15% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 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 | $66 | $55 | +18% | 25 |
| 7–13 days | $61 | $43 | +9% | 25 |
| 14–29 days | $56 | $43 | Cheapest seen | 25 |
| 30–59 days | $115 | $86 | +105% | 25 |
| 60–89 days | $105 | $97 | +88% | 25 |
| 90–179 days | $106 | $97 | +89% | 25 |
| 180+ days | $132 | $118 | +136% | 22 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Phu Quoc → Siem Reap
68 km from Sihanoukville
$179
$71 less than flying from Sihanoukville
18 Dec – 20 Dec · PQC → SAI · out nonstop, back nonstop
found 23 hours ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Phu Quoc → Siem Reap
68 km from Sihanoukville
$80
$4 less than flying from Sihanoukville
24 Jan 2027 · PQC → SAI · 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 return found recently is for 23 Jan 2027 – 26 Jan 2027. 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