Cheap flights from Bangkok Suvarnabhumi Airport to Siem Reap from C$ 140

The cheapest month to fly to Siem Reap from Bangkok Suvarnabhumi Airport is in June. Flight prices, which tend to average around C$ 222, are often lower during this time because this is during the off-season. If you are unable to visit Siem Reap during the month of June, then departing from Bangkok Suvarnabhumi Airport during the month May is also very affordable. Most momondo users find prices during this month for around C$ 244.

According to our data, the cheapest time of day to fly to Siem Reap is in the afternoon. momondo users have found flights departing from Bangkok Suvarnabhumi Airport to Siem Reap in the afternoon for as low as C$ 267. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of C$ 284.

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

You are more likely to see cheaper flights to Siem Reap from Bangkok Suvarnabhumi Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Siem Reap for around C$ 268 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Siem Reap from Bangkok Suvarnabhumi Airport for as low as C$ 256 on momondo.

There are 2 cabin classes available to choose from on Bangkok Suvarnabhumi to Siem Reap–Angkor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Bangkok Suvarnabhumi Airport to Siem Reap.

Historically, on average around 10% 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 86 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon 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 has had the least delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

38 flights are operational daily from Bangkok Suvarnabhumi Airport to Siem Reap as of March 2026. The most popular departure time for this route is 5:00p.m., with 56% of flights per day taking off at noon.

As of March 2026, 270 flights take off from Bangkok Suvarnabhumi Airport and land in Siem Reap each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.