Singapore to Siem Reap SIN → SAI
Changi International Airport (SIN) → Siem Reap International Airport (SAI)
The cheapest return found recently is $320 with Vietnam Airlines, 17 Nov – 22 Nov, found yesterday.
Return
The cheapest return fare on each of 7 departure dates is usually $305 to $367.
Cheapest return found recently
$320
17 Nov – 22 Nov · Vietnam Airlines
Changi International Airport (SIN) → Siem Reap International Airport (SAI)
Leaves 8:45 p.m. · Return leaves 10:25 p.m. · 38 h 40 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
$369
17 Dec – 24 Dec · Singapore Airlines
Changi International Airport (SIN) → Siem Reap International Airport (SAI)
Leaves 2:40 p.m. · Return leaves 4:50 p.m. · 4 h 50 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Found recently, and the cheapest we hold
$320 17 Nov – 22 Novfound yesterdaySee prices for these dates
$283 18 Jan 2027 – 30 Jan 2027found 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 $206 to $278.
At $320, 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 7 departure dates from 17 Nov to 7 Feb 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 5-night return fares leaving within 3 days of 17 Nov to compare.
Every date we hold
18 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 17 Nov – 22 Nov | $320 | Vietnam Airlines | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 17 Dec – 24 Dec | $369 | Singapore Airlines | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 30 Dec – 4 Jan 2027 | $364 | Vietnam Airlines | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 18 Jan 2027 – 30 Jan 2027 | $283 | Vietjet | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 4 Feb 2027 – 7 Feb 2027 | $329 | Singapore Airlines | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 5 Feb 2027 – 8 Feb 2027 | $410 | Emirates | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 7 Feb 2027 – 10 Feb 2027 | $289 | Singapore Airlines | Changi International Airport (SIN) → Siem Reap International Airport (SAI) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $283.
Airlines on the cheapest dates: Singapore Airlines, Vietnam Airlines, Vietjet, Emirates.
Premium cabin fares from Singapore 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 17 Nov – 22 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Singapore to Siem Reap?
Return
Fares 90 to 179 days before departure were typically 12% lower than 14 to 29 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 |
|---|---|---|---|---|
| 14–29 days | $296 | $206 | +13% | 9 |
| 30–59 days | $291 | $206 | +12% | 11 |
| 60–89 days | $316 | $236 | +21% | 22 |
| 90–179 days | $261 | $236 | Cheapest seen | 25 |
| 180+ days | $311 | $311 | +19% | 8 |
Live price for these dates
The cheapest return found recently is for 17 Nov – 22 Nov. 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