Find Cheap Flights from Sri Lanka to Southeast Asia – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 27% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals
Booking Insights

KAYAK's insights & trends for flights to Southeast Asia

Get data-powered insights and trends into flights to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Southeast Asia?

The cheapest ticket to Southeast Asia from Sri Lanka found in the last 5 days was to Singapore, at S$ 424 return. The most popular route is Colombo Bandaranaike Intl Airport (CMB) to Singapore (SIN) and the cheapest return ticket found on this route in the last 5 days was S$ 424.

What is the cheapest month to fly from Sri Lanka to Southeast Asia?

The cheapest month for flights from Sri Lanka to Southeast Asia is October, when tickets cost S$ 285 (return) on average. On the other hand, the most expensive months are May and August, when the average cost of round-trip tickets is S$ 409 and S$ 392 respectively.

What is the cheapest time of day to fly to Southeast Asia?

The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost S$ 449 on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is S$ 474.

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

To get a below-average price on a flight from Sri Lanka to Southeast Asia, you should book around 3 weeks before departure, which saves you about 10% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Which is the cheapest airport to fly into in Southeast Asia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Southeast Asia is Singapore Changi Airport (SIN), with an average flight price of S$ 378.

Good to know

Low season

February
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.

FAQs for booking flights from Sri Lanka to Southeast Asia

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

    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 Sri Lanka to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sri Lanka to Southeast Asia 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 Sri Lanka to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Sri Lanka to Southeast Asia 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 Sri Lanka to Southeast Asia?

    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 Sri Lanka to Southeast Asia 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 Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Tuesday when return tickets can be as cheap as S$ 450. On the other hand, the most expensive day to fly is Saturday, when return prices are S$ 509 on average.

Reviews of the top 3 airlines flying from Sri Lanka to Southeast Asia

 
Need help choosing which airline to fly with from Sri Lanka to Southeast Asia? 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.
8.2
Singapore AirlinesOverall score based on 1628 reviews
8.1Entertainment
7.8Food
8.0Comfort
8.3Boarding
8.6Crew
Airline reviews

Fast and efficient flight. Wifi worked well. Food selection could have been better

8.0 ExcellentWee Keng, Apr 2026
Read more Singapore Airlines reviews

Fast and efficient flight. Wifi worked well. Food selection could have been better

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

It was very good experience on board to Sydney with SQ.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

The seats were more narrow than at other lines. Food was mediocre (economy class)

Once again the meal served was delicious - we got chicken rice

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

They close their counter so early. I had internet issues so I couldn’t check In online . I would have made the flight but their counter was closed 5 minutes before we arrived. No way of contacting them even though I had the confirmation number and tried to check in the night before on someone else’s phone. I tried calling their customer service with no pick up. Horrible experience, I’m very unhappy with them. I hope to never fly with them ever again. It costed me almost $900.

Due to the delay of my first flight, my connecting flight with JetBlue was canceled by Singapore Airlines, but the JetBlue crew was very accommodating and rebooked a seat for me. The crew was very nice and had good attitude.

Wouldn’t let us check our stroller and car seat at the gate

I had been keen to try this airline and I found the food great and appreciated the metal utensils. I found the seating space smaller than most. I am 177cm and was unable to reach down and pick up something off the floor because the seat in front was too close. One of our seats couldn’t be locked in to recline and the staff were sour and unhelpful. We were on 3 flights in a row and were only provided a total of about 700ml of juice / water for the 24 hour period. I recommend taking your own bottle on board because staff will fill it for you. I had to keep asking for water and they couldn’t come up with any better solution than 100ml at a time in a cup. I asked them to give me 2 x 500ml bottles of sparkling water that we could have to ourselves and the lady I asked didn’t want to give me the whole thing until another staff member understood the problem and overrode her. It would be handy to suggest people bring a refillable bottle on board.

Sri Lankan airline had less entertainment choices and Sri Lankan national carrier did not have language choices

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.

Flight delayed for one hour last minute change the gate this is something new? Wak all over the airport bit fast bording to flight smd miss my meeting in kuaa lumpur is the year end meeting no internet in flught which is not good Anyway overall is good thanks to the crew on duty Un able to check in on line and choose the seat thatbi wanted and in flight meal too unable to purchase rrally sad Should get priority seat in next booking

Fast Pass but delay at Check-In Counter. Limited Counter when there are alot of ppls Check-In

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

They didn't have a single blanket for hire for a long haul overnight flight. This wasn't good enough even for a budget airline

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

I don’t travel I need my ticket back until now am with so many communication daily to get my refund

More options for your flight to Southeast Asia

Complete your trip to Southeast Asia with a hotel stay or car hire