Cheap flights from Siem Reap to Bangkok from C$ 180

In general, September is the cheapest month to fly from Siem Reap to Bangkok Suvarnabhumi Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 264. If you’re not able to fly to Bangkok Suvarnabhumi Airport in September, then March is your next best option. Flight prices from Siem Reap to Bangkok Suvarnabhumi Airport during March average around C$ 282.

Our data shows that the cheapest Siem Reap to Bangkok Suvarnabhumi Airport flights are usually those with departure times in the morning. Our users have found flights to Bangkok Suvarnabhumi Airport in the morning for as low as C$ 237. In the evening is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around C$ 278 per ticket.

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 C$ 318 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 C$ 241 on momondo.

You could potentially save up to 8% on your flight if you consider stops on a Siem Reap to Bangkok Suvarnabhumi Airport flight.

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 has had the least delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

As of August 2026, there are 34 flights per day flying from Siem Reap to Bangkok Suvarnabhumi Airport. The most common time of day flights depart is 7:00p.m., with 38% of flights 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.