CMB - BKK

£144 Find Cheap Flights from Colombo to Bangkok Suvarnabhumi Airport – Compare and Save

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Everything you should know

Cheapest return flight
£246
Typical prices: £307-£382
Air India
Fri 2/2Wed 7/2
CMB - BKK • 1 stop
Cheapest direct flights
£298
Typical prices: £320-£389
SriLankan Airlines
Fri 9/11Wed 14/11
CMB - BKK • Direct
Direct flights
Every day
You can fly direct with SriLankan Airlines and Thai Airways. Average duration is 3h 37m
Direct flights
+1
Direct flights
+1
Avoid delays
Thai Airways
Most punctual • 96% on-time
Night
Best time • Fewest delays
Insights
Insights
When to book
18 weeks
in advance
Our data shows that travellers who book at least 18 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 12% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Ho Chi Minh City (SGN)
Cheapest • Avg £290 (return)
Kuala Lumpur Intl (KUL)
Shortest trip • 9h 47m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Bangkok Suvarnabhumi Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Colombo to Bangkok (CMB-BKK)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Colombo to Bangkok

Tue, 2 Feb - Sun, 7 Feb
Air India Logo
12:00 - 14:10CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
24h 40m1 stop New Delhi Indira Gandhi Intl
Air India Logo
06:50 - 04:10BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
22h 50m1 stop New Delhi Indira Gandhi Intl
£246Air India
Tue, 24 Nov - Tue, 1 Dec
Air India Logo
05:10 - 21:15CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
14h 35m1 stop New Delhi Indira Gandhi Intl
Air India Logo
06:50 - 04:10BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
22h 50m1 stop New Delhi Indira Gandhi Intl
£274Air India
Sat, 12 Dec - Fri, 18 Dec
Multiple Airlines Logo
05:10 - 21:15CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
14h 35m1 stop New Delhi Indira Gandhi Intl
Multiple Airlines Logo
20:05 - 10:50BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
16h 15m1 stop Ho Chi Minh City
£278Multiple Airlines
Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
05:10 - 21:15CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
14h 35m1 stop New Delhi Indira Gandhi Intl
Multiple Airlines Logo
16:05 - 09:25BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
18h 50m2 stops Ho Chi Minh City Kuala Lumpur Intl
£292Multiple Airlines
Mon, 9 Nov - Sat, 14 Nov
SriLankan Airlines Logo
07:30 - 12:35CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
3h 35mdirect
SriLankan Airlines Logo
08:10 - 10:10BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
3h 30mdirect
£298SriLankan Airlines
Fri, 12 Feb - Thu, 18 Feb
Vietnam Airlines Logo
01:55 - 18:30CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
15h 05m1 stop Ho Chi Minh City
Vietnam Airlines Logo
20:50 - 00:40BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
29h 20m1 stop Ho Chi Minh City
£299Vietnam Airlines
Tue, 24 Nov - Tue, 1 Dec
SriLankan Airlines Logo
07:30 - 12:35CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
3h 35mdirect
SriLankan Airlines Logo
13:55 - 15:55BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
3h 30mdirect
£301SriLankan Airlines
Mon, 1 Feb - Sun, 7 Feb
SriLankan Airlines Logo
01:15 - 06:20CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
3h 35mdirect
SriLankan Airlines Logo
08:10 - 10:10BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
3h 30mdirect
£301SriLankan Airlines
Sat, 12 Dec - Fri, 18 Dec
SriLankan Airlines Logo
07:30 - 12:35CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
3h 35mdirect
SriLankan Airlines Logo
13:50 - 15:50BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
3h 30mdirect
£316SriLankan Airlines
Mon, 7 Dec - Tue, 15 Dec
Thai Airways Logo
01:00 - 06:10CMB  Colombo Bandaranaike Intl-BKK Bangkok Suvarnabhumi
3h 40mdirect
Thai Airways Logo
21:55 - 00:01BKK  Bangkok Suvarnabhumi-CMB Colombo Bandaranaike Intl
3h 36mdirect
£322Thai Airways
Booking Insights

Price, demand, and travel trends for Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

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

Return flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport typically range from £307 to £382. The lowest price found in the past 5 days was £246 on Air India.

What's the cheapest day of the week to fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport. It's 3% cheaper than the average day, while Wednesday is the most expensive, with prices 2% higher.

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

•March is the cheapest month to fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport at £302 return.
•August (£404) and July (£379) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 33% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 11% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals
Expert advice

Expert advice for your flight from Colombo to Bangkok

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on SriLankan Airlines and CMB

An avid traveller and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg, among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
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.

Read more
Duncan Madden

Duncan Madden

Expert on BKK

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more

Key details for Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights

Low season

November

Cheapest flight

£144
Beat the crowds with an average 29% drop in traveller numbers.
The most popular month to fly with an average 16% increase in traveller numbers.
One-way flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport

When to book flights from Colombo to Bangkok

Are your dates flexible? Find out the best times to travel from Colombo to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    These are the earliest and latest flight times available from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport:

    • Earliest: departs at 01:00 and lands at 04:37
    • Latest: departs at 07:30 and lands at 11:07.

    The flight takes about 3h 37m.

  • Which cabin classes can I book on flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Two cabin classes are available on flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport:

    • Economy class
    • Business Class

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

    A direct flight from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport takes 3h 37m, covering 1,486 miles.

  • Do I need a passport to fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flight?

    Return flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport range from £307 to £382, with an average of £344 over the past 12 months. Anything below £307 counts as a good deal.

  • How expensive are last-minute Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 1% above the £344 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £290 return via Ho Chi Minh City (SGN), compared with £349 for direct.

  • What is the standard checked bag allowance on flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £40–£49 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    The Airbus A320-100/200 family is used most often on this route, operated mainly by Thai Airways and SriLankan Airlines. Other aircraft seen on the route include Airbus A321 (sharklets) variants.

  • How are flight departures from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport spread across the day?

    Night is the busiest departure period on Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights, with 66% leaving in that window. Morning departures account for 34%, Afternoon flights for 0%, and Evening flights for 0%.

  • How are flight prices from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport looking right now?

    One-way fares from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport are currently lower than usual. Average one-way flight prices are about £175, which is 26% below the typical average for this route.

  • Which car hire options are available at Bangkok Suvarnabhumi Airport (BKK)?

    Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car hire companies, with daily rates starting from around £10 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • Hertz

  • Which airports can I use when flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport usually depart from Colombo Bandaranaike Intl (CMB) and arrive at Bangkok Suvarnabhumi (BKK).

  • What time of day has the fewest delays on flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Night flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed on the route from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport route, 7% of flights were delayed in the past three months, with delays averaging 1h 57m.

  • Which airports do connecting flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport pass through?

    One-stop flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport most commonly connect through:

    • Singapore Changi (SIN) – 42% of one-stop connections
    • Ho Chi Minh City (SGN) – 23% of one-stop connections
    • Kuala Lumpur Intl (KUL) – 13% of one-stop connections
    • New Delhi Indira Gandhi Intl (DEL) – 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Yes. Flexible dates can save you up to 5% on flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport. Thursday is the cheapest departure day at £337 return on average, while Wednesday is the most expensive at £353, a difference of £16.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    2 airlines operate flights between Colombo Bandaranaike Intl Airport and Bangkok Suvarnabhumi Airport. The airlines offering direct flights on this route include:

    • SriLankan Airlines
    • Thai Airways

  • How much time can I save by choosing a different stopover airport from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport?

    Flying via Kuala Lumpur Intl (KUL) gives the shortest average 1-stop total travel time of 9h 47m, compared to 10h 57m via Bengaluru Intl (BLR) and 11h 54m via Singapore Changi (SIN).

  • What is the time difference between Colombo Bandaranaike Intl Airport and Bangkok Suvarnabhumi Airport?

    Bangkok Suvarnabhumi Airport is 1 hour ahead of Colombo Bandaranaike Intl Airport (Indochina Time vs India Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Bangkok Suvarnabhumi Airport?

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam, Lumpini Park, and Siam Square. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights?

    Among airlines operating Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights:

    • SriLankan Airlines: offers free seat selection
    • Thai Airways: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • SriLankan Airlines: a cabin bag and a checked bag in Economy class
    • Thai Airways: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Wednesday. On this route, Thursday flights average £337, about £16 less than Wednesday fares (5% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 11% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport trip for March. Fares historically average £302 return in that month – typically £103 less than the most expensive month, which is August (based on the last 12 months).
  • For the best chance of arriving on time, fly with Thai Airways. Over the past three months, 96% of Thai Airways flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport arrived on time, slightly above the route average of 93%. When flights on this route arrive late, they're delayed by an average of 1h 57m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Ho Chi Minh City Airport (SGN) can be cheaper than flying direct. The cheapest stopover option averages £290 return on this route – about £59 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Bangkok Suvarnabhumi Airport.

    • Regency Bangkok Suvarnabhumi Airpor
    • Suvarnabhumi Ville Airport Hotel
    • Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)

Prefer to fly direct from Colombo to Bangkok Suvarnabhumi Airport?

 
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

More options for your flight from Colombo to Bangkok

Complete your trip to Bangkok with a hotel stay or car hire

Car hire in Bangkok
Hotels in Bangkok
Holidays in Bangkok