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Siem Reap

Cheap flights from Bangkok to Siem Reap, Cambodia (SAI)

BKK — SAI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Bangkok to Siem Reap–Angkor Intl are usually found in June or March, booked 8 days in advance, depart on a Friday or Tuesday and return on a Thursday

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 September 17, 2025.

Popular in

December

Cheapest in

June

Average price

$177
Highest demand for flights based on searches. 5% potential increase in price ($11 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 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 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 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 round-trip flight from Bangkok to Siem Reap. Price data was last updated on September 12, 2025.

The price you pay for your flight from Bangkok to Siem Reap may vary depending on when you book. For the best chance of a lower fare, look to book 8 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 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 September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Bangkok to Siem Reap at noon. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Bangkok to Siem Reap. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Bangkok 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 17, 2025.
Read reviews from past customers who have flown Bangkok Airways, Thai Airways, and Thai AirAsia from Bangkok 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
113 reviews

Comfort

7.9

Boarding

8.0

Food

7.2

Crew

8.5

Entertainment

6.2

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
113 reviews
Bangkok Airways
8.0
Very good
113 reviews

Comfort

7.9

Boarding

8.0

Food

7.2

Crew

8.5

Entertainment

6.2

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
350 reviews
Bangkok Airways
8.0
Very good
113 reviews

Comfort

7.9

Boarding

8.0

Food

7.2

Crew

8.5

Entertainment

6.2

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
113 reviews

Comfort

7.9

Boarding

8.0

Food

7.2

Crew

8.5

Entertainment

6.2

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 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?

    Most people fly into Siem Reap–Angkor Intl (SAI) if they book a flight to Siem Reap from Bangkok. On average, Siem Reap–Angkor Intl has 33 inbound flights from Bangkok per day from 3 airlines. Siem Reap–Angkor Intl is conveniently located just 24.7 mi from Siem Reap’s city center.

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

    Currently priced at $140, Thai AirAsia will fly you from Bangkok to Siem Reap and back. In addition to Thai AirAsia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Bangkok Airways and Thai Airways - these airlines can fly you to your destination from $187 and $196, respectively. Thai AirAsia is priced at 21% 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, 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 Bangkok to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Bangkok to Siem Reap flights, Cheapflights offers vacation 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

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Top 3 airlines flying from Bangkok to Siem Reap

Discover the top 3 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest$140Average$167FlexibilityNo cancel feeOn-time87%
Bangkok AirwaysCheapest$187Average$260FlexibilityNo cancel feeOn-time74%
Thai AirwaysCheapest$196Average$214FlexibilityNo cancel feeOn-time77%

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