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Cheap flights from Siem Reap, Cambodia to Southeast Asia from £80

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — BKK
24 Apr — 1 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Siem Reap to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Siem Reap to Southeast Asia
Explore the most affordable flight options available from Siem Reap to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2026.

Tue 19/511:55
SAI
-
KOS
Nonstop1h 10m
Cambodia Angkor Air
Wed 27/513:35
KOS
-
SAI
Nonstop0h 55m
Cambodia Angkor Air
Deal found 25/3£157
Sat 28/323:50
SAI
-
BKK
Nonstop1h 20m
Emirates
Sat 4/420:10
BKK
-
SAI
Nonstop1h 20m
Emirates
Deal found 22/3£163
Tue 5/522:35
SAI
-
SGN
Nonstop1h 20m
Cambodia Angkor Air
Tue 12/520:25
SGN
-
SAI
Nonstop1h 30m
Cambodia Angkor Air
Deal found 22/3£166
Wed 8/719:30
SAI
-
BKK
Nonstop1h 15m
Bangkok Airways
Thu 16/717:35
BKK
-
SAI
Nonstop1h 10m
Bangkok Airways
Deal found 25/3£178
Fri 8/521:45
SAI
-
SGN
Nonstop1h 20m
Cambodia Angkor Air
Fri 15/507:20
SGN
-
SAI
Nonstop1h 25m
Cambodia Angkor Air
Deal found 24/3£178
Thu 26/314:50
SAI
-
KOS
Nonstop1h 10m
Cambodia Angkor Air
Wed 1/413:35
KOS
-
SAI
Nonstop0h 55m
Cambodia Angkor Air
Deal found 24/3£180
Thu 26/314:50
SAI
-
KOS
Nonstop1h 10m
Cambodia Angkor Air
Sun 29/311:15
KOS
-
SAI
Nonstop1h 05m
Cambodia Angkor Air
Deal found 24/3£186
Sat 28/309:20
SAI
-
BKK
1 stop7h 00m
Cambodia Angkor Air
Sat 4/413:05
BKK
-
SAI
1 stop4h 45m
Cambodia Angkor Air
Deal found 22/3£187
Sat 28/311:30
SAI
-
KOS
Nonstop1h 10m
Cambodia Angkor Air
Mon 30/313:35
KOS
-
SAI
Nonstop0h 55m
Cambodia Angkor Air
Deal found 24/3£194
Sat 28/314:50
SAI
-
BKK
1 stop23h 05m
Cambodia Angkor Air
Wed 1/418:00
BKK
-
SAI
1 stop20h 20m
Cambodia Angkor Air
Deal found 22/3£198
Sat 28/311:30
SAI
-
KOS
Nonstop1h 10m
Cambodia Angkor Air
Sun 29/311:15
KOS
-
SAI
Nonstop1h 05m
Cambodia Angkor Air
Deal found 24/3£201
Fri 3/411:55
SAI
-
KOS
Nonstop1h 10m
Cambodia Angkor Air
Mon 6/413:35
KOS
-
SAI
Nonstop0h 55m
Cambodia Angkor Air
Deal found 25/3£209

Find flight deals from Siem Reap to Southeast Asia

Keep the following information in mind while searching for Siem Reap to Southeast Asia flight deals. Data was last updated 25 March 2026.

Round-trip from

£157

One-way from

£80

Popular in

August

Cheapest in

May

Average price

£143
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 19/5-27/5
  • Nonstop
  • 2h 05m total
  • Siem Reap to Southeast Asia
Search Deals
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 10/9
  • Nonstop
  • 1h 10m total
  • Siem Reap to Southeast Asia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 25 March 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

Cheapest return flight
Fastest return journey

Siem ReapKrong Preah Sihanouk

SAI - KOS

SAIKOS

Siem Reap–Angkor Intl

Tue 19/5

11:55-13:05

Nonstop1h 10m

Krong Preah Sihanouk Sihanoukville

Wed 27/5

13:35-14:30

Nonstop0h 55m

£157

Siem ReapBangkok

SAI - BKK

SAIBKK

Siem Reap–Angkor Intl

Wed 8/7

19:30-20:45

Nonstop1h 15m

Bangkok Suvarnabhumi

Thu 16/7

17:35-18:45

Nonstop1h 10m

£163

Siem ReapBangkok

SAI - BKK

SAIBKK

Siem Reap–Angkor Intl

Fri 10/4

09:40-10:55

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 19/4

07:35-09:05

Nonstop1h 30m

£245

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Tue 5/5

22:35-23:55

Nonstop1h 20m

Ho Chi Minh City

Tue 12/5

09:15-09:15

2 stops24h 00m

£246

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Sun 5/4

19:10-20:25

Nonstop1h 15m

Ho Chi Minh City

Sat 11/4

17:15-18:20

Nonstop1h 05m

£273

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Fri 8/5

19:05-18:30

2 stops23h 25m

Ho Chi Minh City

Fri 15/5

19:20-18:05

2 stops22h 45m

£328

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Fri 1/5

19:05-12:15

2 stops17h 10m

Ho Chi Minh City

Fri 8/5

05:00-18:05

2 stops13h 05m

£347

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Wed 15/4

19:05-22:00

2 stops26h 55m

Ho Chi Minh City

Sat 18/4

15:10-18:05

2 stops26h 55m

£348

Siem ReapHo Chi Minh City

SAI - SGN

SAISGN

Siem Reap–Angkor Intl

Sun 5/4

19:10-20:25

Nonstop1h 15m

Ho Chi Minh City

Wed 8/4

06:30-16:25

3 stops9h 55m

£355

Siem ReapBangkok

SAI - BKK

SAIBKK

Siem Reap–Angkor Intl

Thu 16/4

19:10-20:05

1 stop24h 55m

Bangkok Suvarnabhumi

Sun 19/4

22:15-16:25

2 stops18h 10m

£385

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Siem Reap to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Siem Reap with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Siem Reap to Southeast Asia

What is the cheapest month to book a flight from Siem Reap to Southeast Asia?

Currently, June is the cheapest month in which you can book a flight from Siem Reap to Southeast Asia (average of £87). Flying from Siem Reap to Southeast Asia in January is currently the most expensive (average of £135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAI to YJX?

Find hourly flight availability from Siem Reap to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2026.

It’s optimal to fly from Siem Reap to Southeast Asia in the morning. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Siem Reap to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Siem Reap to Southeast Asia?

    Located just 24.7 mi from the city center, Siem Reap–Angkor Intl (SAI) is the airport most travelers will use when flying to Southeast Asia from Siem Reap.

  • How long is the flight from Siem Reap to Southeast Asia?

    Airlines like Cambodia Angkor Air, Bangkok Airways, and Vietnam Airlines fly from Siem Reap to Southeast Asia in about 1h 10m. The time it takes to get you to your destination is usually consistent. There are 197 mi between Siem Reap and Southeast Asia. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Siem Reap to Southeast Asia one-way?

    For one-way options, check prices for Cambodia Angkor Air. According to our data, you can fly for as low as £35. Users have also found prices from £45 and £60 on AirAsia Cambodia and VietJet Air, respectively.

  • What are the most popular routes from Siem Reap to Southeast Asia?

    Most travelers choose Siem Reap–Angkor Intl - Phnom Penh Pochentong, Siem Reap–Angkor Intl - Krong Preah Sihanouk Sihanoukville or Siem Reap–Angkor Intl - Bangkok Suvarnabhumi when deciding on the best route from Siem Reap to Southeast Asia.

  • What are the most reliable airlines from Siem Reap to Southeast Asia?

    Before booking your flight to Southeast Asia from Siem Reap, check out the most reliable airlines to get you to your destination on time: Garuda Indonesia (95%), Austrian Airlines (94%), SWISS( 93%).

  • What are the cheapest flights from Siem Reap to Southeast Asia?

    On average you can expect to pay £144 for a flight from Siem Reap to Southeast Asia. The cheapest flight overall is £87 while the most popular route, (Siem Reap–Angkor Intl - Phnom Penh Pochentong) is currently priced at £63.

  • Can I find deals for flights from Siem Reap to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Siem Reap to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Siem Reap to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Siem Reap to Southeast Asia.

  • Can I find deals for business class flights from Siem Reap to Southeast Asia?

    Yes. Cheapflights offers flight deals from Siem Reap to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Siem Reap to Southeast Asia?

    Currently, June is the cheapest month in which you can book a flight from Siem Reap to Southeast Asia (average of £87). Flying from Siem Reap to Southeast Asia in January is currently the most expensive (average of £135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Siem Reap to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Siem Reap to Phnom Penh flights
Siem Reap to Krong Preah Sihanouk flights
Siem Reap to Suvarnabhumi flights
Siem Reap to Ho Chi Minh City flights

Top airline flying from Siem Reap to Southeast Asia

Discover the top airline that operate flights from Siem Reap to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest£110Average£173FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Siem Reap to Southeast Asia?

Deals for Siem Reap to Southeast Asia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Siem Reap to Southeast Asia?

Cheapflights simply makes it quick and affordable to book flights from Siem Reap to Southeast Asia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Siem Reap to Southeast Asia with no change fees?

Yes, we can. To see specific flights from Siem Reap to Southeast Asia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Siem Reap to Southeast Asia become cheaper?

Not ready to book yet? You can track prices for flights from Siem Reap to Southeast Asia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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