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Cheap flights from Hong Kong to Siem Reap from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to Siem Reap departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Hong Kong to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Vietnam Airlines Logo
6:45 pm - 8:45 am
HKG
-
SAI
15h 00m
1 stop
Vietnam Airlines Logo
9:35 am - 5:25 pm
SAI
-
HKG
6h 50m
1 stop
$299Vietnam Airlines
Sun, Sep 6 - Sun, Sep 13
Vietnam Airlines Logo
6:45 pm - 8:45 am
HKG
-
SAI
15h 00m
1 stop
Vietnam Airlines Logo
6:05 pm - 1:30 pm
SAI
-
HKG
18h 25m
1 stop
$323Vietnam Airlines
Sat, Oct 3 - Wed, Oct 7
Vietnam Airlines Logo
6:45 pm - 8:45 am
HKG
-
SAI
15h 00m
1 stop
Vietnam Airlines Logo
6:05 pm - 1:30 pm
SAI
-
HKG
18h 25m
1 stop
$325Vietnam Airlines
Sat, Oct 3 - Wed, Oct 7
Vietnam Airlines Logo
6:45 pm - 1:15 pm
HKG
-
SAI
19h 30m
1 stop
Vietnam Airlines Logo
5:20 pm - 1:30 pm
SAI
-
HKG
19h 10m
2 stops
$330Vietnam Airlines
Sat, Oct 3 - Wed, Oct 7
Vietnam Airlines Logo
6:45 pm - 1:15 pm
HKG
-
SAI
19h 30m
1 stop
Vietnam Airlines Logo
5:20 pm - 1:30 pm
SAI
-
HKG
19h 10m
2 stops
$332Vietnam Airlines
Sat, Oct 3 - Wed, Oct 7
Vietnam Airlines Logo
6:45 pm - 5:10 pm
HKG
-
SAI
23h 25m
2 stops
Vietnam Airlines Logo
9:35 am - 5:25 pm
SAI
-
HKG
6h 50m
1 stop
$382Vietnam Airlines
Sun, Sep 6 - Sun, Sep 13
Multiple Airlines Logo
8:45 pm - 9:15 am
HKG
-
SAI
13h 30m
2 stops
Multiple Airlines Logo
7:05 pm - 2:50 pm
SAI
-
HKG
18h 45m
2 stops
$437Multiple Airlines
Sun, Sep 6 - Sun, Sep 13
Vietnam Airlines Logo
6:40 pm - 4:55 pm
HKG
-
SAI
47h 15m
2 stops
Vietnam Airlines Logo
5:05 pm - 1:30 pm
SAI
-
HKG
19h 25m
2 stops
$446Vietnam Airlines
Tue, Nov 24 - Fri, Nov 27
Vietnam Airlines Logo
2:30 pm - 4:10 pm
HKG
-
SAI
26h 40m
2 stops
Vietnam Airlines Logo
8:30 pm - 5:25 pm
SAI
-
HKG
43h 55m
2 stops
$455Vietnam Airlines
Tue, Oct 27 - Tue, Nov 3
Vietnam Airlines Logo
6:45 pm - 5:10 pm
HKG
-
SAI
23h 25m
2 stops
Vietnam Airlines Logo
5:20 pm - 1:30 pm
SAI
-
HKG
19h 10m
2 stops
$504Vietnam Airlines
Sat, Oct 3 - Wed, Oct 7

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Vietnam Airlines flights from Hong Kong to Siem Reap

Our best Vietnam Airlines deals on Hong Kong to Siem Reap flight tickets
Vietnam Airlines
Sep 6
HKG6:45 pmHong Kong Intl
15h 00m
1 stop
SAI8:45 amSiem Reap–Angkor Intl
Sep 13
SAI9:35 amSiem Reap–Angkor Intl
6h 50m
1 stop
HKG5:25 pmHong Kong Intl
$299
Vietnam Airlines
Aug 1
HKG6:45 pmHong Kong Intl
15h 00m
1 stop
SAI8:45 amSiem Reap–Angkor Intl
Aug 8
SAI6:30 pmSiem Reap–Angkor Intl
21h 55m
1 stop
HKG5:25 pmHong Kong Intl
$302
Vietnam Airlines
Oct 3
HKG6:45 pmHong Kong Intl
15h 00m
1 stop
SAI8:45 amSiem Reap–Angkor Intl
Oct 7
SAI6:05 pmSiem Reap–Angkor Intl
18h 25m
1 stop
HKG1:30 pmHong Kong Intl
$323

momondo Fare Finder

 
Customize your flight search to find flights from Hong Kong to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 25, 2026.
Use the filters below to find and compare flights from Hong Kong to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 9/6

6:45 pm-8:45 am

1 stop15h 00m

Siem Reap–Angkor Intl

Sun 9/13

9:35 am-5:25 pm

1 stop6h 50m

$299

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 10/3

6:45 pm-8:45 am

1 stop15h 00m

Siem Reap–Angkor Intl

Wed 10/7

6:05 pm-1:30 pm

1 stop18h 25m

$323

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 10/3

6:45 pm-8:45 am

1 stop15h 00m

Siem Reap–Angkor Intl

Wed 10/7

6:05 pm-1:30 pm

1 stop18h 25m

$325

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 10/3

6:45 pm-1:15 pm

1 stop19h 30m

Siem Reap–Angkor Intl

Wed 10/7

5:20 pm-1:30 pm

2 stops19h 10m

$330

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 10/3

6:45 pm-1:15 pm

1 stop19h 30m

Siem Reap–Angkor Intl

Wed 10/7

5:20 pm-1:30 pm

2 stops19h 10m

$332

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 9/6

6:45 pm-5:10 pm

2 stops23h 25m

Siem Reap–Angkor Intl

Sun 9/13

9:35 am-5:25 pm

1 stop6h 50m

$382

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 9/6

8:45 pm-9:15 am

2 stops13h 30m

Siem Reap–Angkor Intl

Sun 9/13

7:05 pm-2:50 pm

2 stops18h 45m

$437

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 11/24

6:40 pm-4:55 pm

2 stops47h 15m

Siem Reap–Angkor Intl

Fri 11/27

5:05 pm-1:30 pm

2 stops19h 25m

$446

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 10/27

2:30 pm-4:10 pm

2 stops26h 40m

Siem Reap–Angkor Intl

Tue 11/3

8:30 pm-5:25 pm

2 stops43h 55m

$455

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 10/3

6:45 pm-5:10 pm

2 stops23h 25m

Siem Reap–Angkor Intl

Wed 10/7

5:20 pm-1:30 pm

2 stops19h 10m

$504

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Siem Reap from

How to get the cheapest flight ticket from Hong Kong to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Hong Kong Intl to Siem Reap–Angkor Intl?

Vietnam Airlines and Cambodia Airways are the most popular carriers operating from Hong Kong Intl to Siem Reap–Angkor Intl

When to book flights from Hong Kong to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Hong Kong to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hong Kong to Siem Reap (HKG to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hong Kong to Siem Reap

Fastest flight time

13h 00m

Direct flights

None
The fastest flight from Hong Kong to Siem Reap takes 13h 00m
There are no direct flights from Hong Kong to Siem Reap. There are no popular flight routes from Hong Kong to Siem Reap.
Search flight deals

Frequently asked questions about flying from Hong Kong to Siem Reap

  • How far is Hong Kong Intl to Siem Reap–Angkor Intl by plane?

    Siem Reap–Angkor Intl is 917.6 mi away from Hong Kong Intl. By plane, this route typically takes 13h 00m.

  • When did momondo last update prices for flights from Hong Kong Intl Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from Hong Kong Intl Airport to Siem Reap–Angkor Intl Airport were last updated today.

  • How many operators does momondo search for flights from Hong Kong Intl Airport to Siem Reap–Angkor Intl Airport?

  • How old do you have to be to fly from Hong Kong Intl Airport to Siem Reap–Angkor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Hong Kong Intl Airport to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly 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.

  • What is the most popular airline from Hong Kong to Siem Reap?

Best airlines flying from Hong Kong to Siem Reap

Compare and see reviews for airlines that fly from Hong Kong to Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Vietnam AirlinesPriceFrom $306Free CancellationRating
7.7
280 reviews
Search Vietnam Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Hong Kong to Siem Reap?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Hong Kong to Siem Reap for you.

Can I find flights from Hong Kong to Siem Reap with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Siem Reap from Hong Kong with this policy.

How can momondo help me find flights from Hong Kong to Siem Reap?

Once you have performed a search for Hong Kong to Siem Reap flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Hong Kong to Siem Reap right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Siem Reap from Hong Kong. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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