Cheap flights from Bangkok to Siem Reap, Cambodia

BKK — SAI
2 Sep — 9 Sep1
1 adult

Cheap flight deals from Bangkok to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) 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 28 August 2025.

Popular in

December

Cheapest in

October

Average price

฿5,808
Highest demand for flights based on searches. 6% potential increase in price (฿12,861 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (฿1,903 potential savings vs. average return price).
Average for round-trip flights in August 2025

Best time to book a flight from Bangkok to Siem Reap

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

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Siem Reap. Price data was last updated on 22 August 2025.

To ensure you get the cheapest price possible for a flight from Bangkok to Siem Reap, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Find hourly flight availability from Bangkok 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 28 August 2025.

It’s typically best to fly out from Bangkok to Siem Reap at midday. Doing so could potentially save you 52% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from Bangkok to Siem Reap. Price data was last updated on 24 August 2025.

Travellers seeking maximum savings on their Bangkok to Siem Reap flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday 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 28 August 2025.
Check out reviews from past customers who have flown with Bangkok Airways and Thai AirAsia from Bangkok to Siem Reap to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.9

Comfort

7.8

Food

7.2

Overall

8.0

Crew

8.5

Entertainment

6.2

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.

Boarding

7.9

Comfort

7.8

Food

7.2

Overall

8.0

Crew

8.5

Entertainment

6.2

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.

Boarding

7.9

Comfort

7.8

Food

7.2

Overall

8.0

Crew

8.5

Entertainment

6.2

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 Bangkok 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?

    For a flight from Bangkok to Siem Reap, you will be flying into Siem Reap–Angkor Intl. Siem Reap–Angkor Intl (SAI) is just 39.7 km from the centre vof the city. Siem Reap–Angkor Intl is the only Siem Reap airport and it handles 33 inbound flights from Bangkok per day. 2 airlines have flights to Siem Reap–Angkor Intl from Bangkok on a regular basis.

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

    Cheapflights users have booked flights from Bangkok to Siem Reap return from ฿3,890. Another airline that can offer you cheap pricing is Bangkok Airways. Thai AirAsia is priced at 32% lower than the current average price of a flight leaving 3 months from now.

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

    Before booking your flight to Siem Reap from Bangkok, have a look at the most reliable airlines to get you to your destination on time: Finnair (94%), เอทิฮัดแอร์เวย์ (94%), แควนตัสแอร์เวย์( 91%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bangkok 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 2 airlines flying from Bangkok to Siem Reap

Discover the top 2 airlines that operate flights from Bangkok 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 17,341 searches. Data last updated 28 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest฿3,890Average฿5,660FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Bangkok AirwaysCheapest฿6,395Average฿10,501FlexibilityNo 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 Bangkok to Siem Reap?

Cheapflights makes it easy to find Bangkok to Siem Reap flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Bangkok to Siem Reap for you. Better yet — we are completely free to use.

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Siem Reap from Bangkok today and book when prices fit your budget.

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