Cheap flights from Siem Reap to Bangkok from $116

If you aren’t able to travel during the month of June, then book flights to Bangkok from Siem Reap during April instead. Flights to Bangkok in April, while not as cheap as those in June, still average around $86.

On average, the least expensive day to fly to Bangkok from Siem Reap is on a Thursday. momondo users have found tickets for Thursday departures for as low as $226. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Siem Reap to Bangkok on a Friday will generally be more expensive and average around $1,529. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Bangkok is in the afternoon. momondo users have found flights departing from Siem Reap to Bangkok in the afternoon for as low as $212. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $613. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Bangkok from Siem Reap when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $219 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Siem Reap for as low as $164 on momondo.

There are 4 cabin classes available to choose from on Siem Reap to Bangkok flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

Thai AirAsia, Bangkok Airways and Emirates are the top three most popular airlines that fly to Bangkok from Siem Reap according to our data. Thai AirAsia is the first choice among our users, with 82% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 3 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% 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 92 minutes.

Generally, flights departing in the morning 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.

As of June 2026, 24 flights take off from Siem Reap and land in Bangkok each day. The most common flight departure time for this route is 12:00PM, with 37% of daily flights taking off in the afternoon.

The number of flights available between Siem Reap and Bangkok is 168 per week as of June 2026. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.