Cheap flights from Bangkok to Siem Reap from $120 BKK, DMK → SAI

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $146 to $206.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 8-night return fares leaving within 3 days of 1 Mar 2027 to compare.

Every date we hold

561 fares on 57 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $146.

Found recently, and the cheapest we hold

What have prices looked like?

Over 45 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $82 to $105.

At $120, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 5 Jan 2027 to compare.

Every date we hold

47 fares on 7 departure dates

Which month looks cheapest?

February 2027 is the cheapest month — from $83.

Return

Fares 90 to 179 days before departure were typically 15% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 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.

One-way

Not enough history yet: in 45 days of one-way prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.

How much is a return flight from Bangkok to Siem Reap?

The cheapest return found recently is $159 with Air Cambodia, 1 Mar 2027 to 9 Mar 2027, found 2 days ago. The cheapest return we hold, of any age, is $146 with Air Cambodia, 12 Jan 2027 to 23 Jan 2027, found 5 days ago. The cheapest return fare on each of 57 departure dates is usually $174 to $228.

How much is a one-way flight from Bangkok to Siem Reap?

The cheapest one-way found recently is $120 with Air Cambodia, 5 Jan 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $83 with Air Cambodia, 13 Feb 2027, found 3 days ago. The cheapest one-way fare on each of 7 departure dates is usually $83 to $101.

What is the cheapest month to fly from Bangkok to Siem Reap?

January 2027 is the cheapest month for a return, from $146, 12 Jan 2027 to 23 Jan 2027, found 5 days ago. February 2027 is the cheapest month for a one-way, from $83, 13 Feb 2027, found 3 days ago.

Every date in January 2027

Every date in February 2027

How far ahead should I book a flight from Bangkok to Siem Reap?

In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 15% lower than 0 to 6 days before departure.

Is there a direct flight from Bangkok to Siem Reap?

Yes, the cheapest nonstop return found recently is $159 with Air Cambodia, 1 Mar 2027 to 9 Mar 2027, found 2 days ago. The cheapest nonstop one-way found recently is $120 with Air Cambodia, 5 Jan 2027, found 2 days ago.

How long is the flight from Bangkok to Siem Reap?

The cheapest nonstop one-way found recently, with Air Cambodia on 5 Jan 2027, takes 1 h 15 min from Suvarnabhumi Airport (BKK) to Siem Reap International Airport (SAI).

Which airlines have the cheapest flights from Bangkok to Siem Reap?

Between 22 Nov and 12 Sept 2027, Thai AirAsia has the cheapest return on 28 of the 57 departure dates we hold, Air Cambodia on 19 and THAI Airways on 7. Between 29 Dec and 30 Sept 2027, Air Cambodia has the cheapest one-way on 3 of the 7 departure dates we hold, Thai AirAsia on 3 and Bangkok Airways on 1.