$159 Find Cheap Flights from Thailand to Sri Lanka - Compare and Save

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KAYAK's insights & trends for flights to Sri Lanka

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

What is the cheapest flight to Sri Lanka?

The cheapest ticket to Sri Lanka from Thailand found in the last 5 days was to Colombo Bandaranaike Intl Airport, at $331 round-trip. The most popular route is Bangkok Suvarnabhumi Airport (BKK) to Colombo Bandaranaike Intl Airport (CMB) and the cheapest round-trip airline ticket found on this route in the last 5 days was $331.

What is the cheapest month to fly from Thailand to Sri Lanka?

The cheapest month for flights from Thailand to Sri Lanka is March, when tickets cost $169 (return) on average. On the other hand, the most expensive months are July and May, when the average cost of round-trip tickets is $224 and $221 respectively.

What is the cheapest time of day to fly to Sri Lanka?

The cheapest time of day to fly to Sri Lanka is generally at night, when round-trip flights cost $329 on average. The most expensive time of day to fly to Sri Lanka is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $445.

How far in advance should I book a flight from Thailand to Sri Lanka?

To get a below average price on the flight from Thailand to Sri Lanka, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Which is the cheapest airport to fly into in Sri Lanka?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Sri Lanka is Colombo Bandaranaike Intl Airport (CMB), with an average flight price of $204.

Good to know

Low season

June

Cheapest flight

$159
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Bangkok to Colombo

FAQs for booking flights from Thailand to Sri Lanka

  • How does KAYAK find such low prices on flights from Thailand to Sri Lanka?

    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 Thailand to Sri Lanka.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Thailand to Sri Lanka is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Thailand to Sri Lanka?

    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 from Thailand to Sri Lanka 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 from Thailand to Sri Lanka?

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

  • What is the cheapest day to fly to Sri Lanka?

    Based on KAYAK data, the cheapest day to fly to Sri Lanka is Tuesday where round-trip tickets can be as cheap as $339. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $410 on average.

Reviews of the top 3 airlines serving from Thailand to Sri Lanka

 
Need help choosing which airline to fly with from Thailand to Sri Lanka? 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 418 reviews
7.7Comfort
6.9Entertainment
8.5Crew
8.0Boarding
7.5Food
Airline reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

10.0 ExcellentRamon, Jul 2026
Read more Thai Airways reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

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

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

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

Efficient and fast check in, courteous staff at counter and on board. On time departure and arrival. AIR ASIA is my favorite international thailand carrier for reasonable cost and excellent customer service!

Delayed us three times, changed gates twice, and then tried to charge for food on the plane.

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

Everything was good. The red seats were a scam. Just like any other seat but red. Although they let you board earlier which was very nice.

Very good, it would be good if payment for drinks could be accepted by card too.

Ontime, no frills, the cabin is clean, the ticket price is lower than the full-service airlines.

Paid for a meal we didn't receive. They admitted they had forgetten ours. No compensation or rectification offered. We requested if they would just give us a glass of wine instead and we would call it even. Crew advised they could not do this and to go to Air Asia counter on arrival and request a refund. Our flight didn't arrive until 2am so this was not a viable option. The crews solution was if we wanted a wine we should purchase one. I was unhappy with that suggestion considering they had already ripped us off with our meal.

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

Very few crew meant that we had to wait almost 2 hours just the get a drink!

Too many carryon bags with size of checking bags. Because of that space was not there to put carry on backpacks.

Nice crew.flight delay fromBKK for some ground prep issue I guess, crew serve well to guest, and respect to guest as well. As usual AC is old,and nt much comert in compare to other rehional airliners.other than that.all good

Flight was on time.food is as usual good.Aircraft is old.old A320, seats aithout any display.crew serve well

When flying from Indian Sector, should be more prepared with Indian food

KAYAK Real time status update is not accurate.the flight inbound rejected and go around.and came back and land. Delay abt 30 min.still shows ontime.track ur self if u wana real time.and cabin crew s are nicer. Aircraft is jst ok.old airplane.and in midflight ,seems have some compressor issue.airconditioning was nt work properly either.I could litarary see guests were cheking if AC is working.bt on landing it start to gv cool.which probably some one intentionaly kept .which was so bad.even breathing was bit difficult.otjer than that.for me all ok.

This leg of the trip was smoother than compared to the initial trip. Sri Lankan Airlines still have much work to do to improve the overall travel experience.

Very good crew, very efficient. Unfortunately not all items listed in duty free catalog were available.

Very professional and well managed. On time, great staff and comfortable.

Kayak company fake total I m not travel my payment reverse plzzz my credit card

Terrible experience. Unexpected wait due to staff delay was not taken proper care. Food inflight could be better where as flight attendees on flight hospitality was 100%

More options for your flight to Sri Lanka

Complete your trip to Sri Lanka with a hotel stay or car rental