BKK - SAI

£84 Find Cheap Flights from Bangkok to Siem Reap – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bangkok to Siem Reap departing on 4/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£166
Typical prices: £145-£184
Emirates
Tue 24/11Thu 26/11
BKK - SAI • Direct
Cheapest one-way flight
£84
Typical prices: £69-£93
Thai Airways
Wed 4/11
BKK - SAI • Direct
Top airlines
Cheapest • from £166 (return)
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Bangkok Airways and Emirates. Average duration is 1h 20m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 4% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Siem Reap!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Bangkok to Siem Reap (BKK-SAI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Bangkok to Siem Reap that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bangkok to Siem Reap

Tue, 24 Nov - Thu, 26 Nov
Emirates Logo
19:50 - 21:10
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£166Emirates
Tue, 8 Sep - Thu, 10 Sep
Emirates Logo
20:10 - 21:30
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Sat, 14 Nov - Sat, 21 Nov
Emirates Logo
19:50 - 21:10
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Thu, 12 Nov - Tue, 1 Dec
Emirates Logo
19:50 - 21:10
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Thu, 12 Nov - Thu, 26 Nov
Emirates Logo
19:50 - 21:10
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Tue, 11 Aug - Thu, 13 Aug
Emirates Logo
20:10 - 21:30
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Tue, 8 Sep - Sat, 26 Sep
Emirates Logo
20:10 - 21:30
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Tue, 8 Sep - Tue, 29 Sep
Emirates Logo
20:10 - 21:30
BKK
-
SAI
1h 20mdirect
Emirates Logo
23:50 - 01:10
SAI
-
BKK
1h 20mdirect
£167Emirates
Wed, 16 Sep - Fri, 18 Sep
Bangkok Airways Logo
10:55 - 12:15
BKK
-
SAI
1h 20mdirect
Bangkok Airways Logo
09:40 - 11:00
SAI
-
BKK
1h 20mdirect
£170Bangkok Airways
Sun, 6 Sep - Sat, 12 Sep
Bangkok Airways Logo
07:40 - 09:00
BKK
-
SAI
1h 20mdirect
Bangkok Airways Logo
19:35 - 21:10
SAI
-
BKK
1h 35mdirect
£171Bangkok Airways
Booking Insights

KAYAK’s insights & trends for Bangkok to Siem Reap flights

Get data-powered insights and trends into flights from Bangkok to Siem Reap to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Bangkok Suvarnabhumi Airport to Siem Reap?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Bangkok Suvarnabhumi Airport to Siem Reap departing in November.

Flight prices are typical for this route right now.

Flights to Siem Reap from Bangkok Suvarnabhumi Airport usually cost between £152 and £182 in November.
The lowest price found in the past 5 days was £166 on Emirates (24 Nov–26 Nov).

What’s the cheapest day of the week to fly from Bangkok to Siem Reap?

The average price of all round-trip flights from Bangkok Suvarnabhumi Airport to Siem Reap clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Siem Reap on a Thursday and more expensive on a Saturday. On your return trip to Bangkok, you should consider flying back on a Saturday, and avoid Tuesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Siem Reap, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bangkok Suvarnabhumi Airport to Siem Reap is September, where tickets cost £148 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is £187 and £170 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Siem Reap, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Bangkok Suvarnabhumi Airport to Siem Reap, you should book around 2 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Bangkok to Siem Reap

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on Thai Airways

One of the web's original travel bloggers, Robert launched his first site, Leave Your Daily Hell, in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Chris Dong

Chris Dong

Expert on Bangkok Airways

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programmes – all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Good to know - Cheap tickets from Bangkok to Siem Reap

Low season

May

Cheapest flight

£84
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Bangkok to Siem Reap

When to book flights from Bangkok to Siem Reap

Are your dates flexible? Find out the best times to travel from Bangkok to Siem Reap based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Bangkok to Siem Reap flights

  • What is the cheapest flight from Bangkok Suvarnabhumi Airport to Siem Reap?

    In the last 5 days, the lowest price for a flight from Bangkok Suvarnabhumi Airport to Siem Reap was £84 for a one-way ticket and £166 for a return.

  • Which airports will I be using when flying from Bangkok to Siem Reap?

    When flying out of Bangkok you will be using Bangkok Suvarnabhumi. You will be landing at Siem Reap, also known as Siem Reap–Angkor Intl.

  • Which aircraft models fly most regularly from Bangkok to Siem Reap?

    We unfortunately don’t have that data for this specific route.

  • On which days can I fly direct from Bangkok to Siem Reap?

    There are direct flights from Bangkok to Siem Reap on a daily basis.

  • Which is the best airline for flights from Bangkok to Siem Reap, Bangkok Airways or Thai AirAsia?

    The two airlines most popular with KAYAK users for flights from Bangkok to Siem Reap are Bangkok Airways and Thai AirAsia. With an average price for the route of £188 and an overall rating of 8.1, Bangkok Airways is the most popular choice. Thai AirAsia is also a great choice for the route, with an average price of £153 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Bangkok to Siem Reap?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bangkok to Siem Reap.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bangkok to Siem Reap?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Siem Reap from Bangkok is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bangkok to Siem Reap?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Siem Reap with an airline and back to Bangkok with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok to Siem Reap?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Siem Reap from Bangkok up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Bangkok Suvarnabhumi Airport to Siem Reap

  • Looking for a cheap flight from Siem Reap to Bangkok? 25% of our users found flights on this route for £80 or less one-way.

Prefer to fly direct from Bangkok to Siem Reap?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Bangkok Suvarnabhumi to Siem Reap–Angkor Intl.
Find which airlines fly direct from Bangkok Suvarnabhumi Airport to Siem Reap–Angkor Intl Airport, which days they fly and book direct flights.

Direct departures

Bangkok Suvarnabhumi to Siem Reap–Angkor Intl

Monday

Bangkok Airways

Bangkok Airways

Tuesday

Bangkok Airways,Emirates

Bangkok Airways,Emirates

Wednesday

Bangkok Airways

Bangkok Airways

Thursday

Bangkok Airways,Emirates

Bangkok Airways,Emirates

Friday

Bangkok Airways

Bangkok Airways

Saturday

Bangkok Airways,Emirates

Bangkok Airways,Emirates

Sunday

Bangkok Airways

Bangkok Airways

See more direct flights

Direct returns

Siem Reap–Angkor Intl to Bangkok Suvarnabhumi

Monday

Bangkok Airways

Bangkok Airways

Tuesday

Bangkok Airways,Emirates

Bangkok Airways,Emirates

Wednesday

Bangkok Airways

Bangkok Airways

Thursday

Bangkok Airways,Emirates

Bangkok Airways,Emirates

Friday

Bangkok Airways

Bangkok Airways

Saturday

Bangkok Airways,Emirates

Bangkok Airways,Emirates

Sunday

Bangkok Airways

Bangkok Airways

See more direct flights

Reviews of the top airlines flying from Bangkok to Siem Reap

 
See real verified KAYAK customer reviews for airlines flying from Bangkok to Siem Reap. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bangkok to Siem Reap? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Bangkok AirwaysOverall score based on 133 reviews
7.9Comfort
8.1Boarding
6.3Entertainment
7.3Food
8.6Crew
Airline reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

10.0 Excellentpuravi, Jan 2026
KBV - BKK
Read more Bangkok Airways reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

We flew business class this time. The food in their economy class is much better in general. Also only coffee, tea and orange juice is free. Beer can be bought only. Same as economy, so their business class service is poor.

Nice flight, stress-free but why bother serving a meal on a 55 minute flight. From what I saw there was a lot of waste because travellers weren't interesting in eating on this short trip. Get rid of the meal and cut the price.

Generally good. I didn't have any food on the flight so I can't make a judgement. It smelled good.

Efficient, comfortable and clean-very good flight with friendly staff and crew

On a 45 mins flight to Koh Samui from Bangkok we were served delicious shrimp pad thai and hot tea. The flight crew did an awesome job serving a full flight.

Seats are tight and leg room so small. We had deep impressions under kneecap from the seat in front. A sign that Bangkok Airways is fully aware how small it is built is the cutout in the table. Very uncomfortable for people in size 1.80 m or more.

This is my 2nd flight with this airline. Service is very good. I was surprised they served a meal on such a short flight. The airplane landed so smooth that most people were unaware the plane had just landed. About half of the people on board applauded.

The staff were helpful and very pleasant. The food is tasty and there’s plenty of water provided. Flights are well air conditioned.

Bangkok Air has been hit with the challenge of flying during COVID like everyone else. Still, they are early to get started again and offer normal services when possible. It is nice to have a lounge for all passengers vs. going to gate and sitting to stare out at planes.

The flight left on time and landed early. The attendants were polite and friendly. Thank you

Efficient and fast check in, courteous staff at counter and on board. On time departure and arrival. AIR ASIA is my favorite international thailand carrier for reasonable cost and excellent customer service!

Delayed us three times, changed gates twice, and then tried to charge for food on the plane.

Very good, it would be good if payment for drinks could be accepted by card too.

Ontime, no frills, the cabin is clean, the ticket price is lower than the full-service airlines.

Paid for a meal we didn't receive. They admitted they had forgetten ours. No compensation or rectification offered. We requested if they would just give us a glass of wine instead and we would call it even. Crew advised they could not do this and to go to Air Asia counter on arrival and request a refund. Our flight didn't arrive until 2am so this was not a viable option. The crews solution was if we wanted a wine we should purchase one. I was unhappy with that suggestion considering they had already ripped us off with our meal.

The boarding process was very poor - refueling on so rear ladder blocked. I think while boarding both ladders should be accessible so that passengers are comfortable instead of crowding through front ladder

Very few crew meant that we had to wait almost 2 hours just the get a drink!

Thai Air Asia no longer has customer support that you can call and talk to. All support is done by chat bot or self help websites. This can be a major issue if you have a problem and it bit us so we can’t recommend nor will we book with them again unless as a last resort.

Landing to Hanoi in time Seat not reclining -Cabin design very dull

Everything you need to know for your flight from Bangkok to Siem Reap

Information on your arrival and departure airports