฿5,842 Find Cheap Flights from Sri Lanka to Bangkok – 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 to Bangkok departing on 23/10. 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.
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Cheap Flights from Sri Lanka to Bangkok

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sri Lanka to Bangkok 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 Sri Lanka to Bangkok

Sun 4 Oct - Tue 13 Oct
Thai AirAsia Logo
23:15 - 04:20
CMB
-
DMK
3h 35mdirect
Thai AirAsia Logo
20:25 - 22:15
DMK
-
CMB
3h 20mdirect
฿10,610Thai AirAsia
Mon 5 Oct - Tue 13 Oct
Thai AirAsia Logo
23:15 - 04:20
CMB
-
DMK
3h 35mdirect
Thai AirAsia Logo
20:25 - 22:15
DMK
-
CMB
3h 20mdirect
฿10,610Thai AirAsia
Sun 4 Oct - Mon 12 Oct
Thai AirAsia Logo
23:15 - 04:20
CMB
-
DMK
3h 35mdirect
Thai AirAsia Logo
20:25 - 22:15
DMK
-
CMB
3h 20mdirect
฿10,610Thai AirAsia
Tue 27 Oct - Sun 8 Nov
Thai AirAsia Logo
23:10 - 04:05
CMB
-
DMK
3h 25mdirect
Thai AirAsia Logo
20:10 - 22:00
DMK
-
CMB
3h 20mdirect
฿10,610Thai AirAsia
Wed 28 Oct - Mon 9 Nov
Thai AirAsia Logo
23:10 - 04:05
CMB
-
DMK
3h 25mdirect
Thai AirAsia Logo
20:10 - 22:00
DMK
-
CMB
3h 20mdirect
฿10,610Thai AirAsia
Thu 1 Oct - Sat 10 Oct
Thai AirAsia Logo
23:15 - 04:20
CMB
-
DMK
3h 35mdirect
Thai AirAsia Logo
20:25 - 22:15
DMK
-
CMB
3h 20mdirect
฿10,678Thai AirAsia
Fri 4 Sep - Wed 23 Sep
Thai AirAsia Logo
23:15 - 04:20
CMB
-
DMK
3h 35mdirect
Thai AirAsia Logo
20:25 - 22:15
DMK
-
CMB
3h 20mdirect
฿10,711Thai AirAsia
Sat 3 Oct - Sat 10 Oct
Thai AirAsia Logo
23:15 - 04:20
CMB
-
DMK
3h 35mdirect
Thai AirAsia Logo
20:25 - 22:15
DMK
-
CMB
3h 20mdirect
฿10,745Thai AirAsia
Wed 2 Sep - Wed 9 Sep
Vietnam Airlines Logo
00:35 - 18:30
CMB
-
BKK
16h 25m
1 stop
Vietnam Airlines Logo
11:20 - 23:35
BKK
-
CMB
13h 45m
1 stop
฿11,450Vietnam Airlines
Fri 13 Nov - Thu 19 Nov
Vietnam Airlines Logo
01:55 - 13:10
CMB
-
BKK
9h 45m
1 stop
Vietnam Airlines Logo
21:15 - 00:55
BKK
-
CMB
29h 10m
1 stop
฿11,584Vietnam Airlines
Booking Insights

KAYAK's insights & trends for flights to Bangkok

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

What is the cheapest day to fly to Bangkok?

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

Based on KAYAK data, the cheapest day to fly to Bangkok is Sunday where round-trip tickets can be as cheap as ฿8,550. On the other hand, the most expensive day to fly is Friday, where round-trip prices are ฿12,787 on average.

What is the cheapest month to fly to Bangkok?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Bangkok, 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 to Bangkok is March, where tickets cost ฿8,562 on average for return flights. On the other hand, the most expensive months are June and July, where the average cost of tickets from Sri Lanka is ฿13,431 and ฿12,155 respectively. For one-way flights, the best month to travel is January with an average price of ฿5,574.

What is the cheapest time of day to fly to Bangkok?

The average price for all round-trip flights to Bangkok depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Bangkok is generally at night, when round-trip flights cost ฿9,595 on average. The most expensive time of day to fly to Bangkok is generally in the morning, which is peak travel time and where the average cost of a ticket is ฿14,724.

What is a good deal for flights to Bangkok?

If you’re looking for cheap airfare to Bangkok, 25% of our users found tickets to Bangkok for the following prices or less: From Colombo Bandaranaike Intl Airport ฿11,921 return.

How far in advance should I book a flight to Bangkok?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Bangkok, 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, you should book around 3 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Which is the cheapest airport to fly into in Bangkok?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Bangkok is Hua Hin Airport (HHQ), with an average flight price of ฿2,188.

Good to know

Cheapest flight

฿5,842
Flight from Colombo to Bangkok Don Mueang Intl

FAQs - booking Bangkok flights

  • Which Bangkok airport is closest to central Bangkok?

    There are 2 major airports in Bangkok. The nearest airport from Bangkok city centre is Bangkok Don Mueang Intl (19 km), followed by Bangkok Suvarnabhumi Airport (25 km).

  • How much is a flight to Bangkok?

    On average, a flight to Bangkok costs ฿13,396. The cheapest price found on KAYAK in the last 2 weeks cost ฿8,950 and departed from Colombo Bandaranaike Intl Airport.

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

    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 to Bangkok.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to Bangkok?

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

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

    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 Bangkok up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Bangkok

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Bangkok flight deals.

Reviews of the top airline flying from Sri Lanka to Bangkok

 
See real verified KAYAK customer reviews for airlines flying to Bangkok. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Sri Lanka to Bangkok. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Bangkok? 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.
7.4
Thai AirAsiaOverall score based on 246 reviews
6.2Food
5.5Entertainment
7.4Boarding
7.9Crew
6.7Comfort
Airline reviews

the rudest staff in the world!!! we had overweight baggage, which is our fault but it is a really stupid rule, and the woman said we could reorganise or pay now, we said we’d reorganise and she started shouting “do it now! hurry up!” even though the flight wasn’t even boarding yet. She told us that if our two cabin bags were below 14 together, then we wouldn’t have to pay 500k dong. We reorganised and our bags were below 14kg. She then said that it was all of our bags together that should be less than 14kg. We were obviously confused by this, because she had just said that it was our two cabin bags and we asked her why she told us to rearrange our bags then. She started shouting at us again saying that we needed to “pay now or throw away”. We said fine, we’ll just pay, and she suddenly started asking for 1.51 million dong. I asked her why it was suddenly over three times the price and she said that it was always that price. I asked to see the other piece of paper she had that had the other price and she slammed her one on top of it and started shouting “pay now or i’ll close the gate” (boarding was already finishing at this point). So, we had no choice but to pay three times the original price, even though we reorganised our cabin bags to be under the necessary weight like she had asked us to. I wouldn’t even be so upset about the money if the staff were at least a little bit nice. She was possibly the rudest, most ignorant woman I have ever met in my life. Besides that, the plane/flight was just a bit worse than ryanair standard. Small seats, delayed by an hour. Typical low budget. At least the ryanair staff don’t try to scam you. Avoid at all costs, it’s not worth the hassle of dealing with such horrible people.

2.0 MediocreAnonymous, Mar 2026
DAD - DMK
Read more Thai AirAsia reviews

the rudest staff in the world!!! we had overweight baggage, which is our fault but it is a really stupid rule, and the woman said we could reorganise or pay now, we said we’d reorganise and she started shouting “do it now! hurry up!” even though the flight wasn’t even boarding yet. She told us that if our two cabin bags were below 14 together, then we wouldn’t have to pay 500k dong. We reorganised and our bags were below 14kg. She then said that it was all of our bags together that should be less than 14kg. We were obviously confused by this, because she had just said that it was our two cabin bags and we asked her why she told us to rearrange our bags then. She started shouting at us again saying that we needed to “pay now or throw away”. We said fine, we’ll just pay, and she suddenly started asking for 1.51 million dong. I asked her why it was suddenly over three times the price and she said that it was always that price. I asked to see the other piece of paper she had that had the other price and she slammed her one on top of it and started shouting “pay now or i’ll close the gate” (boarding was already finishing at this point). So, we had no choice but to pay three times the original price, even though we reorganised our cabin bags to be under the necessary weight like she had asked us to. I wouldn’t even be so upset about the money if the staff were at least a little bit nice. She was possibly the rudest, most ignorant woman I have ever met in my life. Besides that, the plane/flight was just a bit worse than ryanair standard. Small seats, delayed by an hour. Typical low budget. At least the ryanair staff don’t try to scam you. Avoid at all costs, it’s not worth the hassle of dealing with such horrible people.

The boarding process took very long, partly due to passengers on incoming flight took too long to deplane

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

Not good in terms of amenities. For over 6 hours they don’t even provide complementary drinks or snacks-forget about dinner or lunch.

Air Asia just dreadfull. Always poorest customer service and very unwelcoming staff which is clearly bread in from the Top down from the CEO

Other than the bus wait time to off board passenger when we reached Don Muang, everything else was excellent

Took 4 flights in 5 days 3 out of 4 left late about one hour each.

No WiFi or movies. And the seat We’re uncomfortable. Good thing it was a short flight

It was on time! First time in a long time for Air Asia. Thank you!

Nightmare at check in because of restrictibe and unmanageable baggage rules. Very long line and slow because of these policies. Not a smart way to make $

Everything you need to know for your flight to Bangkok

Cabin class types available on flights to Bangkok

Cabin classes available on flights to Bangkok. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.