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Cheap flights from Bangkok Suvarnabhumi Airport to Siem Reap, Cambodia

BKK — SAI
24 Aug — 31 Aug1
1 adult

Cheapflights Tip: The best prices from Bangkok Suvarnabhumi to Siem Reap–Angkor Intl are usually found in September or October, booked 15 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap flight deals from Suvarnabhumi to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Suvarnabhumi (BKK) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2025.

Popular in

December

Cheapest in

September

Average price

£131
Highest demand for flights based on searches. 7% potential increase in price (£7 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Best time to book a flight from Suvarnabhumi to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Suvarnabhumi 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 Bangkok Suvarnabhumi Airport to Siem Reap

How far ahead should I book a flight from Bangkok Suvarnabhumi Airport to Siem Reap?

Use this chart to determine the optimal time to book a return flight from Suvarnabhumi to Siem Reap. Price data was last updated on 8 August 2025.

The price you pay for your flight from Bangkok Suvarnabhumi Airport to Siem Reap may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Find hourly flight availability from Suvarnabhumi to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

One of the essential ways to save on airfare from Bangkok Suvarnabhumi Airport to Siem Reap is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 33% on airfare.

What is the cheapest day to fly from Bangkok Suvarnabhumi Airport to Siem Reap?

Use this chart to determine the cheapest time to fly return from Suvarnabhumi to Siem Reap. Price data was last updated on 17 August 2025.

Travellers seeking maximum savings on their Bangkok Suvarnabhumi Airport to Siem Reap flight should consider departing on Monday at midday when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated 19 August 2025.
Read reviews from past customers who have flown with Bangkok Airways, Thai Airways, andThai AirAsia from Bangkok Suvarnabhumi Airport to Siem Reap. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very Good
111 reviews
Check prices

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

7.9

Overall

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very Good
111 reviews
Bangkok Airways
8.0
Very Good
111 reviews
Check prices

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

7.9

Overall

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Thai Airways
7.8
Good
344 reviews
Bangkok Airways
8.0
Very Good
111 reviews
Check prices

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

7.9

Overall

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Thai AirAsia
7.5
Good
216 reviews
Bangkok Airways
8.0
Very Good
111 reviews
Check prices

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

7.9

Overall

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

Related info for your journey

Find useful and relevant information for your journey from Suvarnabhumi to Siem Reap. 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 into for flights to Siem Reap from Bangkok Suvarnabhumi?

    For a flight from Bangkok Suvarnabhumi to Siem Reap, you will be flying into Siem Reap–Angkor Intl. Siem Reap–Angkor Intl (SAI) is just 24.7 mi from the center of the city. Siem Reap–Angkor Intl is the only Siem Reap airport and it handles 33 inbound flights from Bangkok Suvarnabhumi per day. 3 airlines have flights to Siem Reap–Angkor Intl from Bangkok Suvarnabhumi on a regular basis.

  • What are the cheapest airlines flying from Bangkok Suvarnabhumi Airport to Siem Reap round-trip?

    Cheapflights users have booked flights from Bangkok Suvarnabhumi Airport to Siem Reap round-trip from £100. Other airlines that can offer you cheap pricing are Thai Airways, from £136, and Bangkok Airways, from £136. Thai AirAsia is currently priced 23% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Bangkok Suvarnabhumi Airport to Siem Reap?

    Consider Finnair (94%), Etihad Airways (94%) or Qantas Airways (91%) when booking your flight. These represent the most reliable airlines when flying from Bangkok Suvarnabhumi Airport to Siem Reap.

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

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

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

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

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

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Suvarnabhumi to Siem Reap

Discover the top 3 airlines that operate flights from Suvarnabhumi to Siem Reap. 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest£100Average£122FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai AirwaysCheapest£136Average£157FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Bangkok AirwaysCheapest£136Average£169FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways 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 Suvarnabhumi to Siem Reap?

Cheapflights helps you search for flights from Suvarnabhumi to Siem Reap via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Suvarnabhumi to Siem Reap 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 Suvarnabhumi to Siem Reap with no change fees?

Yes, we can. To see specific flights from Suvarnabhumi to Siem Reap 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 Suvarnabhumi to Siem Reap become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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