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Cheap flights from Bangkok to Sri Lanka from ฿6,140

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — CMB
15 Aug — 22 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bangkok to Sri Lanka

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Sri Lanka
Explore the most affordable flight options available from Bangkok to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2026.

Sun 9/809:25
BKK
-
CMB
1 stop27h 35m
IndiGo
Fri 14/811:30
CMB
-
BKK
1 stop18h 00m
IndiGo
Deal found 15/7฿7,985
Sat 5/920:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Sat 12/923:15
CMB
-
DMK
Nonstop3h 35m
Thai AirAsia
Deal found 13/7฿10,602
Wed 21/1020:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Tue 3/1123:10
CMB
-
DMK
Nonstop3h 25m
Thai AirAsia
Deal found 11/7฿10,635
Sat 5/920:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Fri 11/923:15
CMB
-
DMK
Nonstop3h 35m
Thai AirAsia
Deal found 14/7฿10,669
Sat 5/919:30
BKK
-
CMB
1 stop29h 35m
Vietnam Airlines
Fri 11/902:10
CMB
-
BKK
1 stop30h 40m
Vietnam Airlines
Deal found 12/7฿10,904
Mon 10/820:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Sun 16/823:15
CMB
-
DMK
Nonstop3h 35m
Thai AirAsia
Deal found 15/7฿10,937
Sat 26/919:30
BKK
-
CMB
1 stop29h 35m
Vietnam Airlines
Fri 2/1002:10
CMB
-
BKK
1 stop16h 20m
Vietnam Airlines
Deal found 11/7฿10,971
Sun 16/814:25
BKK
-
CMB
1 stop10h 40m
Vietnam Airlines
Sun 23/800:35
CMB
-
BKK
1 stop8h 15m
Vietnam Airlines
Deal found 13/7฿11,005
Wed 26/820:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Mon 7/923:15
CMB
-
DMK
Nonstop3h 35m
Thai AirAsia
Deal found 14/7฿11,038
Sat 29/821:00
BKK
-
CMB
1 stop28h 05m
Vietnam Airlines
Sun 6/900:35
CMB
-
BKK
1 stop8h 15m
Vietnam Airlines
Deal found 14/7฿11,038
Fri 28/820:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Mon 7/923:15
CMB
-
DMK
Nonstop3h 35m
Thai AirAsia
Deal found 14/7฿11,072
Wed 23/920:25
DMK
-
CMB
Nonstop3h 20m
Thai AirAsia
Sat 17/1023:15
CMB
-
DMK
Nonstop3h 35m
Thai AirAsia
Deal found 14/7฿11,105

Find flight deals from Bangkok to Sri Lanka

Keep the following information in mind while searching for Bangkok to Sri Lanka flight deals. Data was last updated 16 July 2026.

Round-trip from

฿7,985

One-way from

฿6,140

Popular in

May

Cheapest in

November

Average price

฿12,212
IndiGo
  • IndiGo
  • 9/8-14/8
  • 2 total stops
  • 45h 35m total
  • Bangkok to Sri Lanka
Search Deals
Thai AirAsia
  • Thai AirAsia
  • 3/8
  • Nonstop
  • 3h 20m total
  • Bangkok to Sri Lanka
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (฿66,691 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿7,925 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok to Sri Lanka that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 16 July 2026.
Use the filters below to find and compare flights from Bangkok to Sri Lanka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokColombo

BKK - CMB

BKKCMB

Bangkok Suvarnabhumi

Thu 3/9

21:00-01:10

1 stop29h 40m

Colombo Bandaranaike Intl

Sun 6/9

00:35-10:20

1 stop8h 15m

฿11,676

BangkokColombo

BKK - CMB

BKKCMB

Bangkok Suvarnabhumi

Wed 28/10

14:15-23:35

1 stop10h 50m

Colombo Bandaranaike Intl

Fri 30/10

11:15-17:40

1 stop28h 55m

฿15,232

BangkokColombo

BKK - CMB

BKKCMB

Bangkok Suvarnabhumi

Tue 25/8

13:50-21:50

1 stop9h 30m

Colombo Bandaranaike Intl

Tue 1/9

23:00-18:45

1 stop18h 15m

฿15,936

BangkokColombo

DMK - CMB

DMKCMB

Bangkok Don Mueang Intl

Thu 13/8

18:00-20:45

1 stop28h 15m

Colombo Bandaranaike Intl

Mon 24/8

21:45-16:40

1 stop17h 25m

฿16,440

BangkokColombo

BKK - CMB

BKKCMB

Bangkok Suvarnabhumi

Sun 16/8

14:25-23:35

1 stop10h 40m

Colombo Bandaranaike Intl

Sun 23/8

00:35-17:05

2 stops15h 00m

฿16,440

BangkokColombo

DMK - CMB

DMKCMB

Bangkok Don Mueang Intl

Thu 3/9

18:00-20:45

1 stop28h 15m

Colombo Bandaranaike Intl

Mon 7/9

21:45-08:15

1 stop9h 00m

฿17,044
Fastest return journey

BangkokColombo

DMK - CMB

DMKCMB

Bangkok Don Mueang Intl

Mon 27/7

13:45-20:45

1 stop8h 30m

Colombo Bandaranaike Intl

Mon 3/8

21:45-11:05

1 stop11h 50m

฿17,111

BangkokColombo

BKK - CMB

BKKCMB

Bangkok Suvarnabhumi

Sat 5/9

21:00-23:35

1 stop28h 05m

Colombo Bandaranaike Intl

Fri 11/9

02:10-17:05

2 stops13h 25m

฿17,178

BangkokColombo

DMK - CMB

DMKCMB

Bangkok Don Mueang Intl

Sun 26/7

18:00-20:45

1 stop28h 15m

Colombo Bandaranaike Intl

Sat 1/8

21:45-08:15

1 stop9h 00m

฿17,211

BangkokColombo

DMK - CMB

DMKCMB

Bangkok Don Mueang Intl

Sun 9/8

18:00-20:45

1 stop28h 15m

Colombo Bandaranaike Intl

Sat 29/8

21:45-08:15

1 stop9h 00m

฿17,413

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Bangkok to Sri Lanka

Have a flexible travel schedule? Discover the best time to fly to Sri Lanka from Bangkok with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bangkok to Sri Lanka

What is the cheapest month to book a flight from Bangkok to Sri Lanka?

Currently, February is the cheapest month in which you can book a flight from Bangkok to Sri Lanka (average of ฿4,395). Flying from Bangkok to Sri Lanka in April is currently the most expensive (average of ฿9,428). 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 BKK to LK?

Find hourly flight availability from Bangkok to Sri Lanka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 July 2026.

It’s optimal to fly from Bangkok to Sri Lanka in the evening. By choosing this option you can save up to 70% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Bangkok to Sri Lanka

Explore weekly flight availability from Bangkok to Sri Lanka. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 July 2026.

The most flights from TH1 to LK0 are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 on average).

How often are flights from Bangkok to Sri Lanka delayed?

About 17% of weekly flights between Bangkok and Sri Lanka have experienced delays in the past year, with the average delay time being 104 minutes.

What is the most punctual flight time for Bangkok to Sri Lanka flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Bangkok to Sri Lanka flights?

Over the past year, Thai Airways have had the lowest number of delays on this route, with just 7% of flights being delayed.

How far ahead should I book a flight from Bangkok to Sri Lanka?

Booking 25 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bangkok to Sri Lanka. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Sri Lanka

Get insights into the airlines that provide service to Sri Lanka. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sri Lanka. Reviews last updated 16 July 2026.
See what other customers who have flown with Thai Airways,Thai AirAsia, andศรีลังกาแอร์ไลน์ from Bangkok to Sri Lanka have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.9
Good
409 reviews
Check prices

Crew

8.4

Food

7.4

Overall

7.9

Comfort

7.7

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.9
Good
409 reviews
Thai Airways
7.9
Good
409 reviews
Check prices

Crew

8.4

Food

7.4

Overall

7.9

Comfort

7.7

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai AirAsia
7.4
Good
246 reviews
Thai Airways
7.9
Good
409 reviews
Check prices

Crew

8.4

Food

7.4

Overall

7.9

Comfort

7.7

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
ศรีลังกาแอร์ไลน์
6.8
Okay
85 reviews
Thai Airways
7.9
Good
409 reviews
Check prices

Crew

8.4

Food

7.4

Overall

7.9

Comfort

7.7

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Sri Lanka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bangkok to Sri Lanka?

    There are many flights that can get you from Bangkok to Sri Lanka in 9h 30m. Fly via Vietnam Airlines, Malaysia Airlines, or VietJet Air to get the fastest option. The distance from Bangkok to Sri Lanka is about 2391 km. This flight may include one or multiple stops.

  • What are the most popular routes from Bangkok to Sri Lanka?

    Most travellers choose Bangkok Suvarnabhumi - Colombo Bandaranaike Intl, Bangkok Don Mueang Intl - Colombo Bandaranaike Intl or Bangkok Suvarnabhumi - Sigiriya when deciding on the best route from Bangkok to Sri Lanka.

  • What are the most reliable airlines from Bangkok to Sri Lanka?

    Before booking your flight to Sri Lanka from Bangkok, have a look at the most reliable airlines to get you to your destination on time: Japan Airlines (98%), แอร์แคนาดา (93%), Thai Airways( 93%).

  • What are the cheapest flights from Bangkok to Sri Lanka?

    On average you can expect to pay ฿13,397 for a flight from Bangkok to Sri Lanka. The cheapest flight overall is ฿9,065 while the most popular route, (Bangkok Suvarnabhumi - Colombo Bandaranaike Intl) is currently priced at ฿10,602.

  • Can I find deals for flights from Bangkok to Sri Lanka that include hotel bookings?

    Yes. In addition to deals on Bangkok to Sri Lanka flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bangkok to Sri Lanka?

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

  • Can I find deals for business class flights from Bangkok to Sri Lanka?

    Yes. Cheapflights offers flight deals from Bangkok to Sri Lanka 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 Bangkok to Sri Lanka?

    Currently, February is the cheapest month in which you can book a flight from Bangkok to Sri Lanka (average of ฿4,395). Flying from Bangkok to Sri Lanka in April is currently the most expensive (average of ฿9,428). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bangkok to Sri Lanka

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Krabi flights
Chiang Mai to Phuket City flights

Top 3 airlines flying from Bangkok to Sri Lanka

Discover the top 3 airlines that operate flights from Bangkok to Sri Lanka. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 16 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest฿8,276Average฿10,378FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
ศรีลังกาแอร์ไลน์Cheapest฿11,389Average฿14,329FlexibilityNo cancel feeOn-time68%
Search ศรีลังกาแอร์ไลน์ flights
Thai AirwaysCheapest฿13,103Average฿14,758FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Bangkok to Sri Lanka?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sri Lanka from Bangkok today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Bangkok to Sri Lanka?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Bangkok to Sri Lanka for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Bangkok to Sri Lanka with no change fees?

Certainly. Search results for flights to Sri Lanka from Bangkok shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Bangkok to Sri Lanka become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sri Lanka from Bangkok today and book when prices fit your budget.

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