CMB - BKK

$297 Find Cheap Flights from Colombo 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 from Bandaranaike Intl to Suvarnabhumi departing on 19/8. 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
$534
Typical prices: $380-$580
Vietnam Airlines
Fri 25/12Sat 2/1
CMB - BKK • 1 stop
Cheapest direct flights
$703
Typical prices: $399-$563
Thai Airways
Mon 17/8Tue 25/8
CMB - BKK • Direct
Top airlines
Cheapest • from $534 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with SriLankan Airlines and Thai Airways. Average duration is 3h 41m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 95% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% 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 Suvarnabhumi!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Colombo to Bangkok (CMB-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Colombo 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 Bandaranaike Intl to Suvarnabhumi

Fri, 25 Dec - Sat, 2 Jan
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
$534Vietnam Airlines
Sun, 27 Sep - Sat, 3 Oct
Singapore Airlines Logo
00:50 - 20:00
CMB
-
BKK
17h 40m
1 stop
Singapore Airlines Logo
09:20 - 23:35
BKK
-
CMB
15h 45m
1 stop
$566Singapore Airlines
Thu, 15 Oct - Tue, 20 Oct
Singapore Airlines Logo
11:45 - 11:00
CMB
-
BKK
21h 45m
1 stop
Singapore Airlines Logo
09:20 - 23:35
BKK
-
CMB
15h 45m
1 stop
$567Singapore Airlines
Mon, 28 Sep - Sun, 4 Oct
Singapore Airlines Logo
00:50 - 17:15
CMB
-
BKK
14h 55m
1 stop
Singapore Airlines Logo
09:20 - 10:45
BKK
-
CMB
26h 55m
1 stop
$569Singapore Airlines
Sun, 27 Sep - Sat, 3 Oct
Singapore Airlines Logo
00:50 - 19:00
CMB
-
BKK
16h 40m
1 stop
Singapore Airlines Logo
09:20 - 23:35
BKK
-
CMB
15h 45m
1 stop
$570Singapore Airlines
Thu, 1 Oct - Tue, 6 Oct
Singapore Airlines Logo
11:45 - 08:05
CMB
-
BKK
18h 50m
1 stop
Singapore Airlines Logo
09:20 - 23:35
BKK
-
CMB
15h 45m
1 stop
$572Singapore Airlines
Sun, 27 Sep - Sat, 3 Oct
Singapore Airlines Logo
00:50 - 20:00
CMB
-
BKK
17h 40m
1 stop
Singapore Airlines Logo
09:20 - 23:35
BKK
-
CMB
15h 45m
1 stop
$573Singapore Airlines
Tue, 18 Aug - Tue, 25 Aug
Multiple Airlines Logo
23:00 - 12:45
CMB
-
BKK
12h 15m
1 stop
Multiple Airlines Logo
21:05 - 05:40
BKK
-
CMB
10h 05m
1 stop
$583Multiple Airlines
Sun, 23 Aug - Fri, 28 Aug
Vietnam Airlines Logo
00:35 - 18:30
CMB
-
BKK
16h 25m
1 stop
Vietnam Airlines Logo
14:25 - 01:10
BKK
-
CMB
12h 15m
1 stop
$604Vietnam Airlines
Sun, 23 Aug - Fri, 28 Aug
Vietnam Airlines Logo
00:35 - 10:20
CMB
-
BKK
8h 15m
1 stop
Vietnam Airlines Logo
11:20 - 01:10
BKK
-
CMB
15h 20m
1 stop
$605Vietnam Airlines
Booking Insights

KAYAK's insights & trends for Bandaranaike Intl to Suvarnabhumi flights

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

How much is a return flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

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

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

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

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

What is the cheapest month to fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport, 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 Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport is March, where tickets cost $372 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $596 and $520 respectively.

Can I save money by flying with a stopover from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at $781 on average.

How far in advance should I book a flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport, 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 Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport, you should book around 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$297
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Colombo to Bangkok

When to book flights from Bandaranaike Intl to Suvarnabhumi

Are your dates flexible? Find out the best times to travel from Bandaranaike Intl to Suvarnabhumi 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 Colombo to Bangkok flights

  • What is the cheapest flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    In the last 3 days, the lowest price for a flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport was $302 for a one-way ticket and $534 for a return.

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

    On your way to Bangkok, you’ll fly out from Colombo Bandaranaike Intl. You’ll be landing at Bangkok Suvarnabhumi.

  • Which aircraft models fly most regularly from Colombo to Bangkok?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Colombo to Bangkok flight route.

  • Which airline alliances offer flights from Colombo to Bangkok?

    Star Alliance, and oneworld are the airline alliances operating flights between Colombo and Bangkok, with Star Alliance being the most commonly used for this route.

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

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

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

    The two airlines most popular with KAYAK users for flights from Colombo to Bangkok are Thai Airways and Thai AirAsia. With an average price for the route of $598 and an overall rating of 7.9, Thai Airways is the most popular choice. Thai AirAsia is also a great choice for the route, with an average price of $439 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Colombo 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 from Colombo to Bangkok.

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

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

    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 Bangkok with an airline and back to Colombo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colombo 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 from Colombo 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 Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $412 or less one-way and $789 or less round-trip.

Prefer to fly direct from Colombo Bandaranaike Intl to Bangkok Suvarnabhumi?

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

Direct departures

Colombo Bandaranaike Intl to Bangkok Suvarnabhumi

Monday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Tuesday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Wednesday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Thursday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Friday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Saturday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Sunday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

See more direct flights

Direct returns

Bangkok Suvarnabhumi to Colombo Bandaranaike Intl

Monday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Tuesday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Wednesday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Thursday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Friday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Saturday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

Sunday

SriLankan Airlines,Thai Airways

SriLankan Airlines,Thai Airways

See more direct flights

Reviews of the top 4 airlines flying from Bandaranaike Intl to Suvarnabhumi

 
See real verified KAYAK customer reviews for airlines flying from Colombo to Bangkok. 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 Bandaranaike Intl to Suvarnabhumi? 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.
7.9
Thai AirwaysOverall score based on 409 reviews
7.9Boarding
6.9Entertainment
8.4Crew
7.7Comfort
7.4Food
Airline reviews

Excellent airline. The plane was clean and the staff were very attentive

10.0 ExcellentThad, Dec 2025
NRT - BKK
Read more Thai Airways reviews

Excellent airline. The plane was clean and the staff were very attentive

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

USB charging port was not working at my seat 48K.

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

Service on board was excellent. Flight attendant was very helpful. I wish the website is more functional. I can't even choose seats online and had to call the customer service. During check-in at the counter in CGK, I saw a printed page about paying for the bulkhead and exit row seats, so I asked the staff at the check-in counter. I was told that the flight is full and there isn't any seats available for paid upgrade. When I boarded the plane, I saw so many bulkhead and exit row seats empty and asked the flight attendant. He allowed me to purchase the upgrades on board. It would have been nice if I could purchase the upgrades ahead of time, eg. During online check-in or bag drop at the airport. The economy seats in the A350-900 are arranged in 3-3-3 configuration. Seat width is a bit tight for me.

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

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

I get so tired of the constant delays, but there are so few options. The plane is coming from Bangkok each time. Why are the flights so regularly delayed. I do appreciate the speed of the baggage delivery into the terminal.

CNX is a filthy, poorly kept airport. I have heard that Thailand plans to build another airport in San Kampaeng area, so perhaps they are just letting this one go. But it makes every airline look badly to offer their service in such a poorly organized "dump". Sorry to say this, but that's what it's like. At least the AirAsia flight which I took was on time! I appreciate that.

Air Asia will be my choice of airline when I fly to Asia every 6 to 8 weeks. Thank you for your good service.

Very poor. The flight was delayed for over an hour. Also, our baggage, including that of many passengers, approimately 180 bags did not arrive, and we are yet to receive it.

Poor, They have damaged my luggage and I have filed a claim at Colombo airport. They promised I will be in touch by the team within next 2 days but there is no One contacted me at all after 1 week. I then follow up again and received an email acknowledging my claim and claimed that they will reply in 12 days on investigation. Again, no response at all after that… Very disappointing…

All good, on time, depart.only bad side was, airxraft is too old to be in business.hope ailine will manage somethinv somewhat.all good

Was good, comparatively. A330, with good crew set.on time depature. And crew try there best, to make thing efficient.

Spesific ,Crew and cabin manager, look after all pax on board despite being in a old A320 equipment.Got free seat upgrade as well,but old style seats, no much comfert on it.But food and the spesific crew, was amazing.maintain airlanka standerd.the cabin manager, who was so much keen,keen operate as per SOP.

The staff was absolutely phenomenal but the other elements of Sri Lankan Airlines need some serious adjustments. The day started off with terrible news that the flight was cancelled from Male and that the plane went to Malta. As an American, when such delays occur, the airlines find suitable ways to accommodate their customers such as putting them in an Airport hotel or lounge while waiting for the next flight. A 1.5 hour trip turned into 12 hours with no accommodations from the Airlines except a ticket to eat breakfast. For such a Billion dollar industry, a cheap breakfast is an insult toward the customer and something greater should have been done.

Many changes need to be addressed from airport check in to flight departure. If they observe other major airlines, then they can expect what Sri Lankan airlines need to update their procedures.

Smooth takeoff and landing. Best service experience in all our travels over the years. Caring and attentive crew. Loved our flight to and fro.

not looking like a national flag carrier.. both the ground team and flight team are far from being kind and helpful. Not sure what's wrong.

I m not good serves poor serves I m m fake company kayak ok plzz my help my ticket cancel my tripe ok

Friendly staff but otherwise a typical no frills airline. The sets are extremely cramped

We were told that flight was delayed by 20 mins, but it left close to an hour late. But they did make it up and arrived early; it's just very difficult to keep waiting when it's a late flight. Food was mediocre.

The flight has been delayed for nearly an hour, yet neither the captain nor the chief steward made an effort to explain the reason for the delay or offer any apologies to the passengers.

Instead of landing we had to go around and landed in Kuala Lumpur International Airport instead of Subang. Then we had to restart and arrived over 2.5 hrs late

Boarding was nuts. Gate change. Delayed. No communication from gate staff. They seemed lost. Rest of the flight went well

The flight delay... but bus from the airport be on time

Bad experience, delay like no tomorrow. Original schedule departure time at 9:30pm, delayed until 12:05am only depart.

I left the city late and fortunately the flight was also delayed 50mins

It’s THE worst international flying experience I have had. I will avoid this airline.

Actually my flight from Hing Kong to Kuala Lumpe has been cancelled and I don’t see the refund of my airfare. Thats my comment of your Company and please follow up。

Everything you need to know for your flight from Bandaranaike Intl to Suvarnabhumi

Information on your arrival and departure airports