£304 Cheap flights to Siem Reap

When planning your flight to Siem Reap, it is important to be aware that some months are not as ideal as others. Specifically, the months of May, June, or July could carry a higher chance of rain, as Siem Reap sees up to 5.1 inches (130 mm) or more. There are still things to do in Siem Reap even when it's raining, but be aware that rain is highly probable in the area. Cambodia Landmine Museum is a great museum to visit near Siem Reap and is especially great when the weather outside is less than desirable.

The best time to book a flight to Siem Reap from United Kingdom is 67 days out, which is when prices tend to be around £824. In the past 72 hours, momondo users found flights from United Kingdom to Siem Reap for as low as £639.

Prices for flights to Siem Reap–Angkor Intl Airport are refreshed on a daily basis.

As of January 2026, there are 12 operators available to choose from for flights to Siem Reap–Angkor Intl Airport.

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Siem Reap–Angkor Intl Airport.

The necessary travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.