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Cheap flights from Siem Reap to Bangkok from $79 SAI → BKK, DMK

Siem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

The cheapest return found recently is $165 with Air Cambodia, 13 Feb 2027 – 16 Feb 2027, found 3 days ago. The cheapest one-way found recently is $79 with Air Cambodia, 20 Mar 2027, found 2 days ago.

Cheapest one-way found recently
$79, Air Cambodia, found 2 days ago
Cheapest return found recently
$165, 13 Feb 2027 to 16 Feb 2027
Usual return price
$175 to $253
Cheapest month to fly
February 2027, return fares from $164 found in the last 7 days
Airlines with nonstop flights
Thai AirAsia, Air Cambodia, THAI Airways, Emirates, Cambodia Airways, Bangkok Airways
Shortest nonstop flight found
1 h 10 min

Return

The cheapest return fare on each of 17 departure dates is usually $175 to $253.

Cheapest return found recently

$165

13 Feb 2027 – 16 Feb 2027 · Air Cambodia

Siem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)

Leaves 4:50 p.m. · Return leaves 10:30 a.m. · 2 h 25 min of travel, both ways together

out nonstop, back nonstop

found 3 days ago

See prices for these datesCheck today's price

Cheapest nonstop return

$165

13 Feb 2027 – 16 Feb 2027 · Air Cambodia

Siem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)

Leaves 4:50 p.m. · Return leaves 10:30 a.m. · 2 h 25 min of travel, both ways together

out nonstop, back nonstop

found 3 days ago

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $165 13 Feb 2027 – 16 Feb 2027found 3 days agoSee prices for these dates

Cheapest we hold, of any age $164 23 Feb 2027 – 2 Mar 2027found 4 days agoSee prices for these dates

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $164 to $224.

$165, the cheapest return found recently, sits here in that range of $164 to $224.

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 17 departure dates from 16 Nov to 15 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?

We hold no other 3-night return fares leaving within 3 days of 13 Feb 2027 to compare.

Every date we hold

204 fares on 17 departure dates

16 Nov – 4 Dec: $268, found 8 days ago20 Nov – 27 Nov: $278, found 7 days ago1 Dec – 17 Dec: $255, found 4 days ago2 Dec – 11 Dec: $243, found 3 days ago9 Dec – 17 Dec: $238, found 4 days ago3 Jan 2027 – 4 Jan 2027: $311, found 4 days ago9 Jan 2027 – 10 Jan 2027: $253, found 7 days ago21 Jan 2027 – 4 Feb 2027: $176, found 5 days ago23 Jan 2027 – 8 Feb 2027: $166, found 7 days ago30 Jan 2027 – 10 Feb 2027: $175, found 5 days ago7 Feb 2027 – 10 Feb 2027: $236, found 5 days ago13 Feb 2027 – 16 Feb 2027: $165, found 3 days ago21 Feb 2027 – 6 Mar 2027: $205, found 3 days ago23 Feb 2027 – 2 Mar 2027: $164, found 4 days ago2 Mar 2027 – 15 Mar 2027: $174, found 5 days ago4 Mar 2027 – 15 Mar 2027: $219, found 5 days ago15 Jul 2027 – 12 Aug 2027: $225, found 5 days agoNovDecJanFebMarJul
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
16 Nov – 4 Dec$268Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 8 days agoSee prices for these dates
20 Nov – 27 Nov$278Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out 1 stop, back nonstopfound 7 days agoSee prices for these dates
1 Dec – 17 Dec$255EmiratesSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
2 Dec – 11 Dec$243Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
9 Dec – 17 Dec$238Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
3 Jan 2027 – 4 Jan 2027$311Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
9 Jan 2027 – 10 Jan 2027$253Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
21 Jan 2027 – 4 Feb 2027$176Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
23 Jan 2027 – 8 Feb 2027$166Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
30 Jan 2027 – 10 Feb 2027$175Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
7 Feb 2027 – 10 Feb 2027$236Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
13 Feb 2027 – 16 Feb 2027$165Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
21 Feb 2027 – 6 Mar 2027$205Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
23 Feb 2027 – 2 Mar 2027$164Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
2 Mar 2027 – 15 Mar 2027$174Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
4 Mar 2027 – 15 Mar 2027$219Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
15 Jul 2027 – 12 Aug 2027$225Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates

Which month looks cheapest?

February 2027 is the cheapest month — from $164.

November 2026From $2682 departure dates16 Nov – 4 Dec · found 8 days agoSee prices for these datesEvery date in November 2026
December 2026From $2383 departure dates9 Dec – 17 Dec · found 4 days agoSee prices for these datesEvery date in December 2026
January 2027From $1665 departure dates23 Jan 2027 – 8 Feb 2027 · found 7 days agoSee prices for these datesEvery date in January 2027
February 2027From $164Cheapest seen4 departure dates23 Feb 2027 – 2 Mar 2027 · found 4 days agoSee prices for these datesEvery date in February 2027
March 2027From $1742 departure dates2 Mar 2027 – 15 Mar 2027 · found 5 days agoSee prices for these datesEvery date in March 2027
July 2027From $2251 departure date15 Jul 2027 – 12 Aug 2027 · found 5 days agoSee prices for these dates

One-way

The cheapest one-way fare on each of 61 departure dates is usually $84 to $114.

Cheapest one-way found recently

$79

20 Mar 2027 · Air Cambodia

Siem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)

Leaves 4:50 p.m. · 1 h 10 min trip

nonstop

found 2 days ago

Open this tripCheck today's price

Cheapest nonstop one-way

$79

20 Mar 2027 · Air Cambodia

Siem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)

Leaves 4:50 p.m. · 1 h 10 min trip

nonstop

found 2 days ago

Open this tripCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $79 20 Mar 2027found 2 days agoOpen this trip

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $79 to $104.

At $79, the cheapest one-way found recently is at the low end of that range.

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 61 departure dates from 14 Nov to 18 Oct 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 3 other departure dates within 3 days of 20 Mar 2027, and none is cheaper.

Every date we hold

156 fares on 61 departure dates

14 Nov: $138, found 3 days ago15 Nov: $124, found 6 days ago23 Nov: $140, found 3 days ago24 Nov: $122, found 3 days ago25 Nov: $114, found 5 days ago26 Nov: $111, found 5 days ago27 Nov: $112, found 2 days ago28 Nov: $110, found 6 days ago29 Nov: $146, found 7 days ago30 Nov: $105, found 6 days ago4 Dec: $113, found 3 days ago8 Dec: $113, found 3 days ago12 Dec: $113, found 2 days ago13 Dec: $113, found 2 days ago14 Dec: $113, found 5 days ago16 Dec: $114, found 3 days ago26 Dec: $84, found 4 days ago29 Dec: $123, found 4 days ago31 Dec: $79, found 2 days ago1 Jan 2027: $181, found 7 days ago2 Jan 2027: $124, found 2 days ago4 Jan 2027: $86, found 2 days ago5 Jan 2027: $84, found 6 days ago9 Jan 2027: $124, found 6 days ago11 Jan 2027: $111, found 4 days ago13 Jan 2027: $103, found 5 days ago18 Jan 2027: $94, found 3 days ago23 Jan 2027: $83, found 2 days ago30 Jan 2027: $83, found 2 days ago1 Feb 2027: $84, found 3 days ago2 Feb 2027: $84, found 4 days ago3 Feb 2027: $104, found 3 days ago5 Feb 2027: $104, found 3 days ago8 Feb 2027: $79, found 3 days ago9 Feb 2027: $118, found 3 days ago11 Feb 2027: $84, found 5 days ago13 Feb 2027: $84, found 4 days ago15 Feb 2027: $84, found 4 days ago16 Feb 2027: $84, found 3 days ago20 Feb 2027: $83, found 2 days ago25 Feb 2027: $83, found 2 days ago27 Feb 2027: $84, found 3 days ago1 Mar 2027: $87, found 2 days ago4 Mar 2027: $83, found 2 days ago7 Mar 2027: $141, found 2 days ago10 Mar 2027: $105, found 4 days ago11 Mar 2027: $126, found 5 days ago13 Mar 2027: $84, found 3 days ago14 Mar 2027: $108, found 6 days ago15 Mar 2027: $98, found 3 days ago19 Mar 2027: $105, found 2 days ago20 Mar 2027: $79, found 2 days ago21 Mar 2027: $119, found 2 days ago23 Mar 2027: $79, found 2 days ago6 May 2027: $109, found 6 days ago7 Jun 2027: $105, found 5 days ago11 Jun 2027: $104, found 2 days ago15 Jul 2027: $118, found 5 days ago17 Jul 2027: $107, found 6 days ago24 Aug 2027: $104, found 7 days ago18 Oct 2027: $120, found 7 days agoNovDecJanFebMarOct
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
14 Nov$138Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
15 Nov$124Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
23 Nov$140Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
24 Nov$122Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
25 Nov$114Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
26 Nov$111Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
27 Nov$112Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
28 Nov$110Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
29 Nov$146Cambodia AirwaysSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)1 stopfound 7 days agoOpen this trip
30 Nov$105Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
4 Dec$113Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
8 Dec$113Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
12 Dec$113Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
13 Dec$113Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
14 Dec$113Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
16 Dec$114Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
26 Dec$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
29 Dec$123Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
31 Dec$79Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
1 Jan 2027$181Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 7 days agoOpen this trip
2 Jan 2027$124Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
4 Jan 2027$86Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
5 Jan 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 6 days agoOpen this trip
9 Jan 2027$124Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 6 days agoOpen this trip
11 Jan 2027$111Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 4 days agoOpen this trip
13 Jan 2027$103Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
18 Jan 2027$94Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
23 Jan 2027$83Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
30 Jan 2027$83Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
1 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
2 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
3 Feb 2027$104Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
5 Feb 2027$104Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
8 Feb 2027$79Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
9 Feb 2027$118Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
11 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 5 days agoOpen this trip
13 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
15 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
16 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
20 Feb 2027$83Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
25 Feb 2027$83Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
27 Feb 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
1 Mar 2027$87Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
4 Mar 2027$83Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
7 Mar 2027$141Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
10 Mar 2027$105Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 4 days agoOpen this trip
11 Mar 2027$126Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
13 Mar 2027$84Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
14 Mar 2027$108Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
15 Mar 2027$98Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
19 Mar 2027$105Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
20 Mar 2027$79Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
21 Mar 2027$119THAI AirwaysSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
23 Mar 2027$79Air CambodiaSiem Reap International Airport (SAI) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
6 May 2027$109Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
7 Jun 2027$105Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
11 Jun 2027$104Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
15 Jul 2027$118Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 5 days agoOpen this trip
17 Jul 2027$107Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
24 Aug 2027$104Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 7 days agoOpen this trip
18 Oct 2027$120Thai AirAsiaSiem Reap International Airport (SAI) → Don Mueang International Airport (DMK)nonstopfound 7 days agoOpen this trip

Which month looks cheapest?

March 2027 is the cheapest month — from $79.

November 2026From $10510 departure dates30 Nov · found 6 days agoOpen this tripEvery date in November 2026
December 2026From $799 departure dates31 Dec · found 2 days agoOpen this tripEvery date in December 2026
January 2027From $8310 departure dates23 Jan 2027 · found 2 days agoOpen this tripEvery date in January 2027
February 2027From $7913 departure dates8 Feb 2027 · found 3 days agoOpen this tripEvery date in February 2027
March 2027From $79Cheapest seen12 departure dates20 Mar 2027 · found 2 days agoOpen this tripEvery date in March 2027
May 2027From $1091 departure date6 May 2027 · found 6 days agoOpen this trip
June 2027From $1042 departure dates11 Jun 2027 · found 2 days agoOpen this trip
July 2027From $1072 departure dates17 Jul 2027 · found 6 days agoOpen this trip
August 2027From $1041 departure date24 Aug 2027 · found 7 days agoOpen this trip
October 2027From $1201 departure date18 Oct 2027 · found 7 days agoOpen this trip

Premium cabin fares from Siem Reap to Bangkok

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.

How far ahead were prices cheapest for Siem Reap to Bangkok?

Return

Fares 180 or more days before departure were typically 18% 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.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$230$219+22%15
7–13 days$232$209+23%29
14–29 days$234$209+25%35
30–59 days$215$201+14%37
60–89 days$240$166+28%40
90–179 days$201$164+7%48
180+ days$188$188Cheapest seen12

One-way

Fares 90 to 179 days before departure were typically 9% lower than 0 to 6 days before departure.

From the cheapest one-way 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.

See these ranges as a table
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$109$101+10%30
7–13 days$110$99+11%40
14–29 days$107$99+8%49
30–59 days$107$84+8%49
60–89 days$104$79+5%49
90–179 days$99$79Cheapest seen49
180+ days$106$102+7%44

Could a nearby airport be cheaper?

A different airport at either end can change the fare — sometimes a lot.

One-way

Siem Reap → Pattaya

101 km from Bangkok

$257

$178 more than flying to Bangkok

13 Jan 2027 · SAI → UTP · stops unknown

found 5 days ago

Check today's price

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 13 Feb 2027 – 16 Feb 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 Siem Reap to Bangkok?

The cheapest return found recently is $165 with Air Cambodia, 13 Feb 2027 to 16 Feb 2027, found 3 days ago. The cheapest return we hold, of any age, is $164 with Air Cambodia, 23 Feb 2027 to 2 Mar 2027, found 4 days ago. The cheapest return fare on each of 17 departure dates is usually $175 to $253.

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

The cheapest one-way found recently is $79 with Air Cambodia, 20 Mar 2027, found 2 days ago. The cheapest one-way fare on each of 61 departure dates is usually $84 to $114.

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

February 2027 is the cheapest month for a return, from $164, 23 Feb 2027 to 2 Mar 2027, found 4 days ago. March 2027 is the cheapest month for a one-way, from $79, 20 Mar 2027, found 2 days ago.

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 180 or more days before departure were typically 18% lower than 0 to 6 days before departure. One-way fares 90 to 179 days before departure were typically 9% lower than 0 to 6 days before departure.

Is there a direct flight from Siem Reap to Bangkok?

Yes, the cheapest nonstop return found recently is $165 with Air Cambodia, 13 Feb 2027 to 16 Feb 2027, found 3 days ago. The cheapest nonstop one-way found recently is $79 with Air Cambodia, 20 Mar 2027, found 2 days ago.

How long is the flight from Siem Reap to Bangkok?

The cheapest nonstop one-way found recently, with Air Cambodia on 20 Mar 2027, takes 1 h 10 min from Siem Reap International Airport (SAI) to Suvarnabhumi Airport (BKK).

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

Between 16 Nov and 15 Jul 2027, Thai AirAsia has the cheapest return on 10 of the 17 departure dates we hold, Air Cambodia on 6 and Emirates on 1. Between 14 Nov and 18 Oct 2027, Thai AirAsia has the cheapest one-way on 32 of the 61 departure dates we hold, Air Cambodia on 27 and Cambodia Airways on 1.

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