Cheap flights from Siem Reap to Bangkok from $122

The month of June is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Siem Reap, with most prices found around $184. The month of September is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Siem Reap averaging around $185.

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Thursday when prices can be found for as low as $226. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Siem Reap because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $833.

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the afternoon. Flights from Siem Reap to Bangkok Suvarnabhumi Airport during this time can be as low as $210. At noon is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $613 per ticket.

Fly from Siem Reap–Angkor Intl to Bangkok Suvarnabhumi for the best Siem Reap–Angkor Intl - Bangkok Suvarnabhumi flight prices

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Siem Reap when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $214 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Siem Reap for as low as $162 on momondo.

You could potentially save up to 11% on your flight if you consider stops on a Siem Reap to Bangkok Suvarnabhumi Airport flight.

As of May 2026, prices for Siem Reap to Bangkok Suvarnabhumi Airport flights are approximately 14% more expensive when compared to flights at the same time last year.

Bangkok Airways is the most popular carrier operating from Siem Reap–Angkor Intl to Bangkok Suvarnabhumi

Thai AirAsia, Bangkok Airways and Emirates are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Siem Reap according to our data. Thai AirAsia is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 3 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 8% of flights between Siem Reap and Bangkok have experienced a delay on any given week. The average delay length over the past 12 months has been 94 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Bangkok Airways have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

30 flights are operational daily from Siem Reap to Bangkok Suvarnabhumi Airport as of May 2026. The most popular departure time for this route is 7:00PM, with 40% of flights per day taking off in the evening.

212 flights are operational weekly from Siem Reap to Bangkok Suvarnabhumi Airport as of May 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.