Cheap flights from Siem Reap to Bangkok from $181

If you are unable to visit Bangkok Suvarnabhumi Airport during the month of September, then departing from Siem Reap during the month March is also very affordable. Most momondo users find prices during this month for around $284.

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 $321 when searching weeks before you fly. 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 $243 on momondo.

You could potentially save up to 15% on your flight if you consider stops on a Siem Reap to Bangkok Suvarnabhumi Airport flight.

As of August 2026, prices for Siem Reap to Bangkok Suvarnabhumi Airport flights are approximately 34% more expensive when compared to flights at the same time last year.

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 87 minutes.

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

Tuesday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

34 flights are operational daily from Siem Reap to Bangkok Suvarnabhumi Airport as of August 2026. The most popular departure time for this route is 19:00, with 39% of flights per day taking off in the evening.

The number of flights available between Siem Reap and Bangkok Suvarnabhumi Airport is 244 per week as of August 2026. The most frequent departure day is Tue, with 15% of weekly flights leaving on this day.