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Siem Reap

Cheap flights from Suvarnabhumi (BKK) to Siem Reap, Cambodia (SAI)

BKK — SAI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Bangkok Suvarnabhumi to Siem Reap–Angkor Intl are usually found in October or June, booked 78 days in advance, depart on a Tuesday or Friday and return on a Thursday

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 September 11, 2025.

Popular in

December

Cheapest in

October

Average price

$168
Highest demand for flights based on searches. 6% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in September 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 round-trip 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 round-trip flight from Suvarnabhumi to Siem Reap. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Bangkok Suvarnabhumi Airport 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 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 September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Bangkok Suvarnabhumi Airport to Siem Reap at noon. If you’re flexible enough to do this you can expect to save up to 48% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Suvarnabhumi to Siem Reap. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Bangkok Suvarnabhumi Airport to Siem Reap flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons 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 September 11, 2025.
See what other customers who have flown with Bangkok Airways, Thai Airways, and Thai AirAsia from Bangkok Suvarnabhumi Airport to Siem Reap have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very good
113 reviews

Entertainment

6.2

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

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.
Bangkok Airways
8.0
Very good
113 reviews
Bangkok Airways
8.0
Very good
113 reviews

Entertainment

6.2

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

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.
Thai Airways
7.8
Good
350 reviews
Bangkok Airways
8.0
Very good
113 reviews

Entertainment

6.2

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

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.
Thai AirAsia
7.5
Good
216 reviews
Bangkok Airways
8.0
Very good
113 reviews

Entertainment

6.2

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.2

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 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?

    Thai AirAsia, at $140, was found to be the cheapest airline from Bangkok Suvarnabhumi Airport to Siem Reap.Alternate airlines to your destination round-trip include Bangkok Airways and Thai Airways. You may be able to fly from Bangkok Suvarnabhumi Airport to Siem Reap for 20% less than the average price by searching for these airlines.

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

    Before booking your flight to Siem Reap from Bangkok Suvarnabhumi Airport, check out the most reliable airlines to get you to your destination on time: Finnair (93%), Etihad Airways (92%), Qantas Airways( 90%).

  • 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 vacation 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

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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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest$140Average$169FlexibilityNo cancel feeOn-time87%
Bangkok AirwaysCheapest$187Average$262FlexibilityNo cancel feeOn-time74%
Thai AirwaysCheapest$196Average$215FlexibilityNo cancel feeOn-time77%

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