Cheap flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport from £145

CMB — BKK
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Colombo Bandaranaike Intl to Bangkok Suvarnabhumi are usually found in March or January, booked 90 days in advance, depart on a Thursday or Monday and return on a Wednesday

Cheap flight deals from Colombo to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest flights from Colombo to Suvarnabhumi

Thu 31/1216:15 -
1 stop19h 50m
Wed 6/120:40 -
1 stop20h 05m
Deal found 13/11£247
Tue 24/1105:10 -
1 stop11h 30m
Tue 24/1122:20 -
1 stop21h 25m
Deal found 10/11£272
Sat 28/1105:10 -
1 stop14h 35m
Thu 10/1206:50 -
1 stop10h 45m
Deal found 13/11£290
Fri 27/1101:00 -
Nonstop3h 40m
Thu 10/1221:55 -
Nonstop3h 36m
Deal found 13/11£292
Fri 25/1201:55 -
1 stop9h 45m
Wed 6/111:20 -
1 stop14h 50m
Deal found 13/11£302
Wed 30/1212:00 -
1 stop31h 45m
Wed 6/114:20 -
1 stop11h 50m
Deal found 10/11£303
Fri 27/1101:00 -
Nonstop3h 40m
Thu 10/1215:10 -
1 stop14h 30m
Deal found 13/11£305
Wed 23/1201:55 -
1 stop15h 05m
Fri 1/114:20 -
1 stop11h 50m
Deal found 13/11£311
Tue 8/1214:20 -
1 stop22h 40m
Tue 15/1210:50 -
1 stop11h 30m
Deal found 10/11£319
Wed 23/1201:55 -
1 stop15h 05m
Wed 30/1214:20 -
1 stop11h 50m
Deal found 13/11£325

Find flight deals from Colombo to Suvarnabhumi

Round-trip from

£247

One-way from

£145

Popular in

September

Cheapest in

March

Average price

£248

Good round-trip deal

£303 or less
Air India
  • Air India
  • 31/12-6/1
  • 2 total stops
  • 39h 55m total
  • Colombo to Bangkok
Air India
  • Air India
  • 31/12-31/12
  • 1 total stop
  • 14h 35m total
  • Colombo to Bangkok
Highest demand for flights based on searches. 7% potential increase in price (£17 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Colombo Bandaranaike Intl to Bangkok Suvarnabhumi.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Fri 25/12

11:20-23:10

1 stop10h 20m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£270

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Mon 1/3

23:05-14:05

2 stops37h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£271

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Wed 23/12

01:55-11:15

2 stops31h 50m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£273

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Sun 3/1

23:05-17:40

2 stops41h 05m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£287

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Sun 27/12

01:55-14:45

2 stops35h 20m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£287

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Wed 20/1

01:55-19:45

1 stop16h 20m

Bangkok Suvarnabhumi

Thu 28/1

19:35-00:40

1 stop30h 35m

£306

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Fri 1/1

01:55-11:15

2 stops55h 50m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£311

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Fri 25/12

01:55-19:45

1 stop16h 20m

Bangkok Suvarnabhumi

Wed 30/12

14:20-00:40

1 stop11h 50m

£325

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Fri 27/11

01:55-17:20

2 stops13h 55m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£335

ColomboBangkok

CMB Colombo Bandaranaike Intl - BKK Bangkok Suvarnabhumi

CMBBKK

Colombo Bandaranaike Intl

Tue 26/1

17:05-14:05

2 stops19h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-22:30

Nonstop0h 00m

£343

Flights are sorted by cheapest return flights first.

Deals found on 14/11

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Best time to book a flight from Colombo to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Colombo with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport

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

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

Currently, March is the cheapest month in which you can book a flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport (average of £194). Flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport in September is currently the most expensive (average of £330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CMB to BKK?

When flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

Airfare is typical for this route at the moment.

Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights typically cost between £222 and £282 in December.
The cheapest return price found within the last 5 days was £247 on Air India (31 Dec–6 Jan).

Reviews of airlines servicing Suvarnabhumi

Check out reviews from past customers who have flown with Thai Airways,Thai AirAsia, andSriLankan Airlines from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.0

Comfort

7.7

Entertainment

6.9

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Thayawat,Sept 2026

SIN - BKK

Entertainment system was improved. I could not get my preferred Isle seat this time.

Crew

8.5

Boarding

8.0

Comfort

7.7

Entertainment

6.9

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Thayawat,Sept 2026

SIN - BKK

Entertainment system was improved. I could not get my preferred Isle seat this time.

Crew

8.5

Boarding

8.0

Comfort

7.7

Entertainment

6.9

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Thayawat,Sept 2026

SIN - BKK

Entertainment system was improved. I could not get my preferred Isle seat this time.

Crew

8.5

Boarding

8.0

Comfort

7.7

Entertainment

6.9

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Thayawat,Sept 2026

SIN - BKK

Entertainment system was improved. I could not get my preferred Isle seat this time.

Related info for your journey

  • How long is the flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    There are many flights that can get you from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport in 15h 30m. Fly via Vietnam Airlines or Malaysia Airlines to get the fastest option. The distance from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport is about 1486 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport round-trip?

    According to our current data, Thai AirAsia (£104), Thai Airways (£240), and SriLankan Airlines (£243) offers the cheapest pricing from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport. Users have found that Thai AirAsia is 61% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport one-way?

    To fly one-way, consider booking your trip with AirAsia, which is currently one of the cheapest options available, starting at £97. Thai AirAsia flights start at £97 while deals on IndiGo start at £123 one-way.

  • What are the most reliable airlines from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Consider Japan Airlines (92%), Air Canada (92%) or SriLankan Airlines (92%) when booking your flight. These represent the most reliable airlines when flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport.

  • What are the cheapest flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    On average you can expect to pay £727 for a flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport. The cheapest flight overall is £302 while the most popular route, (Colombo Bandaranaike Intl - Bangkok Suvarnabhumi) is currently priced at £280.

  • Can I find deals for flights from Colombo to Suvarnabhumi that include hotel bookings?

    Yes. In addition to deals on Colombo to Suvarnabhumi flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Colombo to Suvarnabhumi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colombo to Suvarnabhumi.

  • Can I find deals for business class flights from Colombo to Suvarnabhumi?

    Yes. Cheapflights offers flight deals from Colombo to Suvarnabhumi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, March is the cheapest month in which you can book a flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport (average of £194). Flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport in September is currently the most expensive (average of £330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Kanchanaburi
Chonburi
Cha-am
Ko Samet
Pak Chong
Sattahip
Ayutthaya
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Colombo to Suvarnabhumi

AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest£104Average£254FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai AirwaysCheapest£240Average£352FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
SriLankan AirlinesCheapest£243Average£335FlexibilityNo cancel feeOn-time68%
Search SriLankan Airlines flights

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Why should you use Cheapflights to find cheap flight tickets from Colombo to Suvarnabhumi?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Suvarnabhumi from Colombo.

Can Cheapflights find flights from Colombo to Suvarnabhumi with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Colombo to Suvarnabhumi, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Colombo to Suvarnabhumi become cheaper?

Yes, Cheapflights offers price alerts on Colombo to Suvarnabhumi flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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