332 € Cheap Flights from Kathmandu to Colombo Bandaranayake

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Flight deals from Kathmandu to Colombo Bandaranayake

Looking for a cheap last-minute deal or the best return flight from Kathmandu Airport to Colombo Bandaranayake Airport? If you want to travel next month, return fares start from 406 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Kathmandu to Colombo Bandaranayake

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to Colombo Bandaranayake flights are currently cheapest in February.

Direct flights from Kathmandu to Colombo Bandaranayake

Kathmandu to Colombo Bandaranayake: Alternative routes

Compare routes from Kathmandu to Colombo below. You may find an airport to fly into that's cheaper, faster, or easier than Colombo Bandaranayake.

Kathmandu to Colombo: Flight information

The things to know before you go.
Cheapest flight found332 €
Cheapest month to flyOctober
Average flight time3 hrs, 35 mins
Most popular airlineSriLankan Airlines
Average flights per week5

Finding cheap flights from Kathmandu to Colombo Bandaranayake: Frequently asked questions

The best price we found for a return flight from Kathmandu to Colombo Bandaranayake is 332 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 35 minutes is the average flight time from Kathmandu to Colombo Bandaranayake.
SriLankan Airlines flies direct from Kathmandu to Colombo Bandaranayake.
As of July 2026, there are 5 flights per week flying from Kathmandu to Colombo Bandaranayake.
The cheapest month to fly from Kathmandu to Colombo Bandaranayake is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Colombo Bandaranayake Airport on Tuesday, 13 October 2026.
Yes – the average flight time is 3 hours and 35 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Colombo Bandaranayake but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Colombo is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Air India and SriLankan Airlines offer the cheapest flight tickets to Colombo Bandaranayake.

Flying from Kathmandu Airport (KTM) to Colombo Bandaranayake Airport (CMB): what you need to know

  • The average length of a direct flight from Kathmandu Airport to Colombo Bandaranayake Airport is 3 hours 35 minutes.

  • The timezone in Colombo is UTC+5:30, which is 17 minutes behind Kathmandu.

  • Choose from four weekly Kathmandu Airport to Colombo Bandaranayake Airport flights. The 12:50 departure with SriLankan Airlines is the earliest you can take. SriLankan Airlines operates the latest service of the day at 13:40.

  • Arrive at the airport on time so you don't miss your KTM to CMB flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • During popular months such as November, it's a good idea to get to the airport earlier. Arrive two hours before a domestic departure and four hours ahead of international flights when you fly during a high season in general.

  • SriLankan Airlines offers direct flights from Kathmandu Airport to Colombo Bandaranayake Airport. Book with this popular carrier, then get ready to tick off the sights in Colombo — and maybe even more of Sri Lanka if time allows.

  • The airline most travellers prefer to fly with on this route is SriLankan Airlines.

  • SriLankan Airlines is the most punctual carrier that offers KTM to CMB flights.

  • Consider adding a stopover when booking your ticket from Kathmandu Airport to Colombo Bandaranayake Airport. Simply deselect 'Direct flights only' to break up your trip, or perhaps see a new city along the way. Here are some options between KTM and CMB:

    • Delhi Indira Gandhi International Airport

    • Bangkok Suvarnabhumi Airport

    • Mumbai Airport

How to find the cheapest flights from Kathmandu Airport (KTM) to Colombo Bandaranayake Airport (CMB)

  • 171 € is the lowest price for a one-way Kathmandu Airport to Colombo Bandaranayake Airport flight. A return flight starts at 332 €. These prices can change depending on availability and demand.

  • To secure cheap tickets from KTM to CMB, book your journey eight months ahead of your planned departure.

  • January is the cheapest month for flights from Kathmandu Airport to Colombo Bandaranayake Airport. If you need to travel at a different time of year, the 'Whole month' tool will show you the lowest prices across every month.

  • Landing cheap flights from KTM to CMB is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a lower fare pops up.

  • Select your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Kathmandu Airport to Colombo Bandaranayake Airport.

Handy information about Kathmandu Airport (KTM)

  • Of the departures from Kathmandu Airport, 51% land on schedule at their destination.

  • Central Kathmandu to Kathmandu Airport is around 6 kilometres. Depending on traffic, it'll take about 30 minutes to get there if you're driving, ride-sharing or catching a taxi.

  • The journey when using public transport typically takes 40 minutes.

  • Looking for a convenient hotel near KTM? If you've booked an early flight from Kathmandu Airport to Colombo Bandaranayake Airport, these stays will put you moments from your departure lounge:

Arriving at Colombo Bandaranayake Airport (CMB)

Getting from Colombo Bandaranayake Airport (CMB) to central Colombo

  • From Colombo Bandaranayake Airport, Colombo is approximately 32 kilometres away. It takes around 40 minutes to drive to the centre.

  • Travelling by public transport takes about 50 minutes.

When to fly to Colombo Bandaranayake Airport (CMB)

  • August is the most popular month for flights from Kathmandu Airport to Colombo Bandaranayake Airport. To skip the crowds, visit Colombo in March.

  • Lock in your flight from Kathmandu Airport to Colombo Bandaranayake Airport for March if you want to explore Colombo during its warmest month. You can expect temperatures of between 24ºC (75ºF) and 33ºC (91ºF).

  • Look for cheap tickets from KTM to CMB in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 22ºC (72ºF) and 32ºC (90ºF) on average.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.