Cheap flights from Bangkok to Siem Reap from €99

If you aren’t able to travel during the month of June, then book flights to Siem Reap from Bangkok during May instead. Flights to Siem Reap in May, while not as cheap as those in June, still average around €155.

Our most recent data shows that the best time of day to fly to Siem Reap is in the morning. Flights from Bangkok to Siem Reap during this time can be as low as €168. Flights to Siem Reap are more costly at midday, with an average ticket price of €200. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Siem Reap from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Siem Reap for around €170 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Siem Reap from Bangkok for as low as €162 on momondo.

Historically, on average around 20% of flights between Bangkok and Siem Reap have experienced a delay on any given week. The average delay length over the past 12 months has been 84 minutes.

Generally, flights departing in the morning 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, Thai Airways have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

As of March 2026, 32 flights take off from Bangkok and land in Siem Reap each day. The most common flight departure time for this route is 17:00, with 51% of daily flights taking off at midday.

228 flights are operational weekly from Bangkok to Siem Reap as of March 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.