Cheap Flights to Siem Reap | Popular Routes to Siem Reap from HK$818

View HK$818 flight on Mon, 7 Sept 2026Opens in a new window

Popular airlines to Siem Reap

  • Singapore Airlines

  • Vietnam Airlines

  • Bangkok Airways

  • Japan Airlines

  • Vietjet Air

  • Qatar Airways

  • Emirates

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Siem Reap

Prices were available within the past 7 days and start at HK$818 for one-way flights and HK$1,699 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Vietjet Air
Thu, 3 Sept - Wed, 9 Sept
HAN
Hanoi
SAI
Siem Reap
HK$1,699 Return, found 3 days ago
HK$1,699
Return
found 3 days ago
Select Vietjet Air flight, departing Thu, 3 Sept from Hanoi to Siem Reap, returning Wed, 9 Sept, priced at HK$1,699 found 3 days ago
Air Cambodia
Fri, 5 Jun - Tue, 9 Jun
KTI
Phnom Penh
SAI
Siem Reap
HK$2,214 Return, found 3 hours ago
HK$2,214
Return
found 3 hours ago
Select Air Cambodia flight, departing Fri, 5 Jun from Phnom Penh to Siem Reap, returning Tue, 9 Jun, priced at HK$2,214 found 3 hours ago
Hahn Air Systems
Tue, 26 May - Tue, 2 Jun
PQC
Phu Quoc
SAI
Siem Reap
HK$2,571 Return, found 8 hours ago
HK$2,571
Return
found 8 hours ago
Select Hahn Air Systems flight, departing Tue, 26 May from Phu Quoc to Siem Reap, returning Tue, 2 Jun, priced at HK$2,571 found 8 hours ago
Vietnam Airlines
Thu, 6 Aug - Mon, 10 Aug
HKG
Hong Kong SAR
SAI
Siem Reap
HK$2,821 Return, found 2 days ago
HK$2,821
Return
found 2 days ago
Select Vietnam Airlines flight, departing Thu, 6 Aug from Hong Kong SAR to Siem Reap, returning Mon, 10 Aug, priced at HK$2,821 found 2 days ago
Singapore Airlines
Mon, 13 Jul - Sun, 19 Jul
CAN
Guangzhou
SAI
Siem Reap
HK$2,885 Return, found 1 day ago
HK$2,885
Return
found 1 day ago
Select Singapore Airlines flight, departing Mon, 13 Jul from Guangzhou to Siem Reap, returning Sun, 19 Jul, priced at HK$2,885 found 1 day ago
Singapore Airlines
Tue, 14 Jul - Sun, 19 Jul
SZX
Shenzhen
SAI
Siem Reap
HK$3,045 Return, found 1 day ago
HK$3,045
Return
found 1 day ago
Select Singapore Airlines flight, departing Tue, 14 Jul from Shenzhen to Siem Reap, returning Sun, 19 Jul, priced at HK$3,045 found 1 day ago
Vietnam Airlines
Mon, 5 Oct - Sun, 11 Oct
PVG
Shanghai
SAI
Siem Reap
HK$3,311 Return, found 1 day ago
HK$3,311
Return
found 1 day ago
Select Vietnam Airlines flight, departing Mon, 5 Oct from Shanghai to Siem Reap, returning Sun, 11 Oct, priced at HK$3,311 found 1 day ago
AirAsia
Fri, 3 Jul - Fri, 10 Jul
CMB
Colombo
SAI
Siem Reap
HK$4,194 Return, found 22 hours ago
HK$4,194
Return
found 22 hours ago
Select AirAsia flight, departing Fri, 3 Jul from Colombo to Siem Reap, returning Fri, 10 Jul, priced at HK$4,194 found 22 hours ago
Thai AirAsia
Fri, 4 Dec - Sun, 6 Dec
KMG
Kunming
SAI
Siem Reap
HK$4,258 Return, found 1 day ago
HK$4,258
Return
found 1 day ago
Select Thai AirAsia flight, departing Fri, 4 Dec from Kunming to Siem Reap, returning Sun, 6 Dec, priced at HK$4,258 found 1 day ago
EVA Airways
Wed, 27 May - Wed, 3 Jun
MFM
Macau
SAI
Siem Reap
HK$4,766 Return, found 1 day ago
HK$4,766
Return
found 1 day ago
Select EVA Airways flight, departing Wed, 27 May from Macau to Siem Reap, returning Wed, 3 Jun, priced at HK$4,766 found 1 day ago

Trending flights to Siem Reap

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Vietnam Airlines
Thu, 6 Aug - Mon, 10 Aug
HKG
Hong Kong SAR
SAI
Siem Reap
HK$2,821 Return, found 2 days ago
HK$2,821
Return
found 2 days ago
Select Vietnam Airlines flight, departing Thu, 6 Aug from Hong Kong SAR to Siem Reap, returning Mon, 10 Aug, priced at HK$2,821 found 2 days ago

Frequently asked questions

How do I find cheap flights to Siem Reap that have flexible change policies?
We know that plans can change in the blink of an eye, so choosing a flexible ticket with Expedia is always a clever idea. Simply mark the "No change fee" box directly under the "Flexible change policies" filter. Your low-priced, flexible flight to Siem Reap is only a few clicks away.
How can I find cheap tickets to Siem Reap?
Book in advance, consider nearby airports, use points or miles — you're not short of ways! One more is to make use of Expedia's "flexible dates" feature. Search for a Siem Reap flight, then compare the prices for nearby dates. In the last seven days, the best price for a flight to Siem Reap was HK$1,699.
How much is a flight to Siem Reap?
One-way flights leaving Hanoi (HAN) sold for as low as HK$818 in the last seven days. During this period, the price of a return journey to Siem Reap ranged between HK$1,699 and HK$4,766. If you spot a bargain ticket, grab it quickly — these prices don't hang around.
When is the cheapest time to fly to Siem Reap?
Jetting off on a Tuesday, followed by a Monday, is generally the best way to score the cheapest flight. Steer clear of the weekend if you can, because Saturday is typically the most expensive day of the week. Spend the money you saved having a blast in Siem Reap instead!
How much is a plane ticket to Siem Reap?
Flights to Siem Reap varied from HK$1,699 to HK$4,766 in the last seven days. Generally, the earlier you make a reservation, the better the price.
What is the best time to go to Siem Reap?
July, September and October are the most popular months to explore Banteay Srei, one of Siem Reap's most fabulous cities. Summertime here starts June 20. Temperatures range from 24ºC to 32ºC at this time of year, so plan your travels around then if you're into warmer weather.
What months are the cheapest to book a flight to Siem Reap?
A cheap month to score an awesome deal to Siem Reap is February, whereas prices are higher in December. Steer clear of this month if you're watching your pennies.

Book with confidence

About Siem Reap

Expedia offers flights to Siem Reap to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Siem Reap or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Siem Reap
*Available to Expedia members.