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Cheap flights from Siem Reap to Southeast Asia from £56

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Siem Reap to Southeast Asia departing on 3/3. 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
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Cambodia Angkor Air Logo
16:00 - 17:10
SAI
-
KOS
1h 10mdirect
Cambodia Angkor Air Logo
17:40 - 18:50
KOS
-
SAI
1h 10mdirect
£91Cambodia Angkor Air
Thu, 19 Mar - Thu, 26 Mar
Cambodia Angkor Air Logo
16:00 - 17:10
SAI
-
KOS
1h 10mdirect
Cambodia Angkor Air Logo
17:40 - 18:50
KOS
-
SAI
1h 10mdirect
£99Cambodia Angkor Air
Tue, 3 Mar - Thu, 5 Mar
Cambodia Angkor Air Logo
14:50 - 16:00
SAI
-
KOS
1h 10mdirect
Cambodia Angkor Air Logo
17:40 - 18:50
KOS
-
SAI
1h 10mdirect
£130Cambodia Angkor Air
Thu, 12 Feb - Sun, 15 Feb
Cambodia Angkor Air Logo
16:00 - 17:10
SAI
-
KOS
1h 10mdirect
Cambodia Angkor Air Logo
13:10 - 14:10
KOS
-
SAI
1h 00mdirect
£135Cambodia Angkor Air
Thu, 12 Feb - Sat, 14 Feb
Vietnam Airlines Logo
21:30 - 22:45
SAI
-
SGN
1h 15mdirect
Vietnam Airlines Logo
19:30 - 20:30
SGN
-
SAI
1h 00mdirect
£137Vietnam Airlines
Mon, 2 Mar - Sat, 7 Mar
Vietnam Airlines Logo
21:30 - 22:45
SAI
-
SGN
1h 15mdirect
Vietnam Airlines Logo
19:30 - 20:30
SGN
-
SAI
1h 00mdirect
£148Vietnam Airlines
Wed, 4 Mar - Sat, 7 Mar
Bangkok Airways Logo
12:55 - 14:25
SAI
-
BKK
1h 30mdirect
Bangkok Airways Logo
17:25 - 18:45
BKK
-
SAI
1h 20mdirect
£150Bangkok Airways
Wed, 8 Jul - Thu, 16 Jul
Bangkok Airways Logo
09:40 - 11:00
SAI
-
BKK
1h 20mdirect
Bangkok Airways Logo
07:40 - 09:00
BKK
-
SAI
1h 20mdirect
£151Bangkok Airways
Sun, 26 Apr - Wed, 29 Apr
VietJet Air Logo
19:05 - 08:00
SAI
-
SGN
36h 55m
2 stops
VietJet Air Logo
22:40 - 18:05
SGN
-
SAI
19h 25m
2 stops
£205VietJet Air
Sun, 22 Mar - Tue, 24 Mar
VietJet Air Logo
19:05 - 08:00
SAI
-
SGN
36h 55m
2 stops
VietJet Air Logo
21:45 - 18:05
SGN
-
SAI
20h 20m
1 stop
£210VietJet Air
Sun, 22 Mar - Tue, 24 Mar

Bangkok Airways flights from Siem Reap to Southeast Asia

Our best Bangkok Airways deals on Siem Reap to Southeast Asia flight tickets
Bangkok Airways
8 Jul
SAI12:55Siem Reap–Angkor Intl
1h 30m
BKK14:25Bangkok Suvarnabhumi
16 Jul
BKK17:25Bangkok Suvarnabhumi
1h 20m
SAI18:45Siem Reap–Angkor Intl
£150
Bangkok Airways
26 Apr
SAI09:40Siem Reap–Angkor Intl
1h 20m
BKK11:00Bangkok Suvarnabhumi
29 Apr
BKK07:40Bangkok Suvarnabhumi
1h 20m
SAI09:00Siem Reap–Angkor Intl
£151
Bangkok Airways
11 Apr
SAI19:25Siem Reap–Angkor Intl
1h 30m
BKK20:55Bangkok Suvarnabhumi
10 May
BKK17:25Bangkok Suvarnabhumi
1h 20m
SAI18:45Siem Reap–Angkor Intl
£183

Vietnam Airlines flights from Siem Reap to Southeast Asia

Our best Vietnam Airlines deals on Siem Reap to Southeast Asia flight tickets
Vietnam Airlines
2 Mar
SAI21:30Siem Reap–Angkor Intl
1h 15m
SGN22:45Ho Chi Minh City
7 Mar
SGN19:30Ho Chi Minh City
1h 00m
SAI20:30Siem Reap–Angkor Intl
£137
Vietnam Airlines
6 Feb
SAI21:30Siem Reap–Angkor Intl
1h 15m
SGN22:45Ho Chi Minh City
13 Feb
SGN19:30Ho Chi Minh City
1h 00m
SAI20:30Siem Reap–Angkor Intl
£148
Vietnam Airlines
20 Feb
SAI21:30Siem Reap–Angkor Intl
1h 15m
SGN22:45Ho Chi Minh City
23 Feb
SGN19:30Ho Chi Minh City
1h 00m
SAI20:30Siem Reap–Angkor Intl
£148

momondo Fare Finder

 
Customise your flight search to find flights from Siem Reap to Southeast Asia 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 279,928 searches. Data last updated 2 February 2026.
Use the filters below to find and compare flights from Siem Reap to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Siem ReapKrong Preah Sihanouk

SAI - KOS

SAIKOS

Siem Reap–Angkor Intl

Thu 19/3

16:00-17:10

Nonstop1h 10m

Krong Preah Sihanouk Sihanoukville

Thu 26/3

17:40-18:50

Nonstop1h 10m

£91

Siem ReapKrong Preah Sihanouk

SAI - KOS

SAIKOS

Siem Reap–Angkor Intl

Tue 3/3

16:00-17:10

Nonstop1h 10m

Krong Preah Sihanouk Sihanoukville

Thu 5/3

17:40-18:50

Nonstop1h 10m

£99

Siem ReapKrong Preah Sihanouk

SAI - KOS

SAIKOS

Siem Reap–Angkor Intl

Thu 12/2

14:50-16:00

Nonstop1h 10m

Krong Preah Sihanouk Sihanoukville

Sun 15/2

17:40-18:50

Nonstop1h 10m

£130

Siem ReapKrong Preah Sihanouk

SAI - KOS

SAIKOS

Siem Reap–Angkor Intl

Thu 12/2

16:00-17:10

Nonstop1h 10m

Krong Preah Sihanouk Sihanoukville

Sat 14/2

13:10-14:10

Nonstop1h 00m

£135

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Mon 2/3

21:30-22:45

Nonstop1h 15m

Ho Chi Minh City

Sat 7/3

19:30-20:30

Nonstop1h 00m

£137

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Wed 4/3

21:30-22:45

Nonstop1h 15m

Ho Chi Minh City

Sat 7/3

19:30-20:30

Nonstop1h 00m

£148

Siem ReapBangkok

SAI - BKK

SAIBKK

Siem Reap–Angkor Intl

Wed 8/7

12:55-14:25

Nonstop1h 30m

Bangkok Suvarnabhumi

Thu 16/7

17:25-18:45

Nonstop1h 20m

£150

Siem ReapBangkok

SAI - BKK

SAIBKK

Siem Reap–Angkor Intl

Sun 26/4

09:40-11:00

Nonstop1h 20m

Bangkok Suvarnabhumi

Wed 29/4

07:40-09:00

Nonstop1h 20m

£151

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Sun 22/3

19:05-08:00

2 stops36h 55m

Ho Chi Minh City

Tue 24/3

22:40-18:05

2 stops19h 25m

£205

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Sun 22/3

19:05-08:00

2 stops36h 55m

Ho Chi Minh City

Tue 24/3

21:45-18:05

1 stop20h 20m

£210

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Southeast Asia from

How to get the cheapest flight ticket from Siem Reap to Southeast Asia

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 month to fly to Southeast Asia?

The month of May is, on average, the cheapest month to fly to Southeast Asia from Siem Reap, with most prices found around £117. If you are unable to visit Southeast Asia during the month of May, then departing from Siem Reap during the month March is also very affordable. Most momondo users find prices during this month for around £123.

What is the cheapest day to depart on your flight to Southeast Asia?

Our data shows that Monday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £377. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Tuesday is £942.

What is the cheapest time of day to depart on your flight to Southeast Asia?

In the afternoon is the cheapest time of day to fly from Siem Reap to Southeast Asia when you can find flight prices for as low as £134. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around £624. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Siem Reap–Angkor Intl to Southeast Asia flight route?

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

How far in advance should I book a flight to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from Siem Reap when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around £145 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Siem Reap for as low as £115 on momondo.

What cabin class options are available on Siem Reap–Angkor Intl to Southeast Asia flights?

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

Can stopping save me money on Siem Reap to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Siem Reap to Southeast Asia.

Cheap Siem Reap to Southeast Asia flight deals and tips

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

Fastest flight time

1h 00m

Direct flights

Every day

Airports in Southeast Asia

295 airports
The fastest flight from Siem Reap to Southeast Asia takes 1h 00m
Direct flights go from Siem Reap to Southeast Asia every day.
There are 295 airports in Southeast Asia. From Siem Reap there are direct flights to Bangkok Suvarnabhumi (BKK), Ho Chi Minh City (SGN), Krong Preah Sihanouk Sihanoukville (KOS).
Search flight deals

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

    Prices for flights from Siem Reap–Angkor Intl Airport to Southeast Asia refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Siem Reap–Angkor Intl Airport to Southeast Asia.

  • What documentation or ID do you need to fly to Southeast Asia?

    The travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Siem Reap to Southeast Asia

Compare and see reviews for airlines that fly from Siem Reap to Southeast Asia with momondo
Airline
Rating
Free Cancellation
Price
Thai AirAsiaPriceFrom £107Free CancellationRating
7.5
232 reviews
Search Thai AirAsia flights

Why use momondo?

Why should I use momondo to find a flight deal from Siem Reap to Southeast Asia?

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 Siem Reap to Southeast Asia for you.

Can I find flights from Siem Reap to Southeast Asia with flexible booking policies on momondo?

Yes. All flights to Southeast Asia from Siem Reap on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Siem Reap to Southeast Asia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Siem Reap to Southeast Asia.

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

Yes. momondo can track prices for Siem Reap to Southeast Asia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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