Cheap flights from Southeast Asia to Siem Reap from $74

If you don’t want to visit Siem Reap in July, then you should wait until August to fly from Southeast Asia, when ticket prices are also cheap, with an average price of $199.

The cheapest day to depart from Southeast Asia to Siem Reap is on a Tuesday. Travelers who choose to depart for Siem Reap on a Tuesday will often find tickets for as low as $212. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $287. These prices are subject to change though, so be sure to set up a Price Alert for flights to Siem Reap.

At noon is the cheapest time of day to fly from Southeast Asia to Siem Reap when you can find flight prices for as low as $202. Flying to Siem Reap at noon is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Siem Reap, so prices are often more expensive at around $239 per ticket.

Fly from Phuket City to Siem Reap–Angkor Intl for the best Southeast Asia - Siem Reap–Angkor Intl flight prices

You are more likely to see cheaper flights to Siem Reap from Southeast Asia when booking weeks ahead of your departure date. In general, you can expect to find flights to Siem Reap for around $220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Siem Reap from Southeast Asia for as low as $201 on momondo.

There are 3 cabin classes available to choose from on Southeast Asia to Siem Reap flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

AirAsia Cambodia, Thai AirAsia, and Vietnam Airlines are the most popular carriers operating from Southeast Asia to Siem Reap–Angkor Intl

Thai AirAsia, Cambodia Angkor Air and Bangkok Airways are the top three most popular airlines that fly to Siem Reap from Southeast Asia according to our data. Thai AirAsia is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Siem Reap. Keep in mind that there are 7 different airlines that fly to Siem Reap on a routine basis, so you have a few additional options to choose from.

50 flights are operational daily from Southeast Asia to Siem Reap as of August 2026. The most popular departure time for this route is 5:00PM, with 56% of flights per day taking off at noon.

356 flights are operational weekly from Southeast Asia to Siem Reap as of August 2026. The most popular departure day for this route is Fri, with 18% of flights per week taking off on this day.