Cheap Flights from Kathmandu to Colombo Bandaranayake

Compare Kathmandu to Colombo Bandaranayake flight deals

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Flight deals from Kathmandu Airport to Colombo Bandaranayake Airport

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 R 8,412. Find the lowest prices on one-way and return tickets right here.

Colombo.R 3,499 per passenger.Departing Wed, 23 Sep.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Wed, 23 Sep, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,499, select.

Colombo.R 3,511 per passenger.Departing Tue, 27 Oct.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Tue, 27 Oct, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,511, select.

Colombo.R 3,511 per passenger.Departing Sun, 24 Jan.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Sun, 24 Jan, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,511, select.

Colombo.R 3,535 per passenger.Departing Sat, 15 Aug.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Sat, 15 Aug, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,535, select.

Colombo.R 3,627 per passenger.Departing Tue, 1 Dec.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Tue, 1 Dec, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,627, select.

Colombo.R 3,739 per passenger.Departing Wed, 1 Jul.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Wed, 1 Jul, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,739, select.

Colombo.R 3,813 per passenger.Departing Thu, 19 Nov.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Thu, 19 Nov, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,813, select.

Colombo.R 3,995 per passenger.Departing Sat, 20 Jun.One-way flight with IndiGo.Outbound indirect flight with IndiGo, departs from Kathmandu on Sat, 20 Jun, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 3,995, select.

Colombo.R 4,168 per passenger.Departing Sat, 23 May.One-way flight with Nepal Airlines.Outbound indirect flight with Nepal Airlines, departs from Kathmandu on Sat, 23 May, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 4,168, select.

Colombo.R 4,608 per passenger.Departing Tue, 28 Apr.One-way flight with Nepal Airlines.Outbound indirect flight with Nepal Airlines, departs from Kathmandu on Tue, 28 Apr, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 4,608, select.

Colombo.R 4,774 per passenger.Departing Mon, 15 Feb.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Mon, 15 Feb, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 4,774, select.

Colombo.R 4,776 per passenger.Departing Sat, 20 Mar.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Sat, 20 Mar, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 4,776, select.

Colombo.R 5,827 per passenger.Departing Sun, 19 Jul.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Kathmandu on Sun, 19 Jul, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 5,827, select.

Colombo.R 5,834 per passenger.Departing Wed, 25 Nov.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Kathmandu on Wed, 25 Nov, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 5,834, select.

Colombo.R 5,835 per passenger.Departing Thu, 27 Aug.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Kathmandu on Thu, 27 Aug, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 5,835, select.

Colombo.R 5,837 per passenger.Departing Sun, 24 Jan.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Kathmandu on Sun, 24 Jan, arriving in Colombo Bandaranayake.Price includes taxes and charges.From R 5,837, select.

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 September.

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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 found	R 3,499
Cheapest month to fly	September
Average flight time	3 hrs, 35 mins
Most popular airline	SriLankan Airlines
Average flights per week	5

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

How much are return flights from Kathmandu to Colombo Bandaranayake?

The best price we found for a return flight from Kathmandu to Colombo Bandaranayake is R 7,345. 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.

How long does it take to fly from Kathmandu to Colombo Bandaranayake?

3 hours and 35 minutes is the average flight time from Kathmandu to Colombo Bandaranayake.

Which airlines fly direct from Kathmandu to Colombo Bandaranayake?

SriLankan Airlines flies direct from Kathmandu to Colombo Bandaranayake.

How many flights are there a week from Kathmandu to Colombo Bandaranayake?

As of April 2026, there are 5 flights per week flying from Kathmandu to Colombo Bandaranayake.

When is the cheapest time to fly from Kathmandu to Colombo Bandaranayake?

The cheapest month to fly from Kathmandu to Colombo Bandaranayake is usually July.

Which upcoming date is cheapest to fly from Kathmandu Airport to Colombo Bandaranayake Airport on?

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 Friday, 24 July 2026.

Can I get a direct flight from Kathmandu Airport to Colombo Bandaranayake Airport?

Yes – the average flight time is 3 hours and 35 minutes.

How can I find the best flight deal to Colombo Bandaranayake?

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.

When is the best time to book flights to Colombo?

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.

Which is the cheapest airline to fly from Kathmandu Airport to Colombo Bandaranayake with?

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

Travelling from Tribhuvan International Airport (KTM) to Bandaranaike International Airport (CMB): what you need to know

Hop on a direct flight from Tribhuvan International Airport to Bandaranaike International Airport and you'll be travelling for an average of 3 hours 35 minutes.
The timezone in Colombo is UTC+5:30, which is 17 minutes behind Kathmandu.
Each week, there are 17 Tribhuvan International Airport to Bandaranaike International Airport flights. If you'd like to jet off early, select the 12:50 SriLankan Airlines flight. If you're eager to make the most of your day before flying, the latest flight is at 13:40 with SriLankan Airlines.
To ensure you catch your KTM to CMB flight, leave enough time for things like baggage drop and finding your gate. Turning up two hours before international departures and one hour before domestic flights is the general rule.
During popular months such as September, you'll want to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead for an international flight when you travel during a peak period in general.
Jetting into Colombo (and then exploring more of Sri Lanka!) is a snap with SriLankan Airlines. This popular carrier has direct flights from Tribhuvan International Airport to Bandaranaike International Airport.
The majority of travellers choose to fly with SriLankan Airlines on this route.
SriLankan Airlines is the most punctual carrier that offers KTM to CMB flights.
If you'd like to split up your journey, simply uncheck 'Direct flights only' when searching for your ticket from Tribhuvan International Airport to Bandaranaike International Airport. These are the top stopovers between KTM and CMB:
- Indira Gandhi International Airport
- Chhatrapati Shivaji International Airport
- Suvarnabhumi Airport

How to find the cheapest flights from Tribhuvan International Airport (KTM) to Bandaranaike International Airport (CMB)

Right now, R 3,499 is the lowest price we've seen for a one-way Tribhuvan International Airport to Bandaranaike International Airport flight. The best price for a return ticket is R 7,345. Bear in mind that fares can change due to demand when booking.
To pick up cheap tickets from KTM to CMB, reserve your journey two months before your planned departure.
Organise your trip for January. That's the cheapest month for flights from Tribhuvan International Airport to Bandaranaike International Airport. If you're flexible on when you fly, use the 'Whole month' tool to find the cheapest airfare across each month.
You won't have to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you as soon as there's a change in price on cheap flights from KTM to CMB.
Lock in the perfect flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Tribhuvan International Airport to Bandaranaike International Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and journey duration.

Handy information about Tribhuvan International Airport (KTM)

To reach Tribhuvan International Airport from central Kathmandu, it takes about 15 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 5 kilometres from the airport to the city centre.
Get your break off to a hassle-free start by staying near KTM. Whether you're taking an early flight from Tribhuvan International Airport to Bandaranaike International Airport or just don't like being rushed, these hotels are ideal:

Arriving at Bandaranaike International Airport (CMB)

The last thing you need is a lengthy journey to your hotel if you're getting in late on a Tribhuvan International Airport to Bandaranaike International Airport flight. Check in to one of these accommodation options near CMB instead:
Go wherever you want, whenever you want with a Bandaranaike International Airport rental car. Book your wheels from Sr Rent A Car, Green Motion or Sixt and chase adventure across Colombo and beyond.
For the best deal, book your vehicle from Bandaranaike International Airport about two weeks before travelling.

Getting from Bandaranaike International Airport (CMB) to central Colombo

From Bandaranaike International Airport, Colombo is approximately 32 kilometres away. It takes around 40 minutes to drive to the centre.
Travelling by public transport will take you roughly 1 hour 30 minutes.

When to fly to Bandaranaike International Airport (CMB)

February is the most popular month for flights from Tribhuvan International Airport to Bandaranaike International Airport. For smaller crowds, visit Colombo in April.
Book your flight from Tribhuvan International Airport to Bandaranaike International Airport for March if you'd like to explore Colombo during its warmest month. You can expect temperatures of between 24ºC (75ºF) and 33ºC (91ºF).
January sees average temperatures of between 22ºC (72ºF) and 32ºC (90ºF). Search for cheap tickets from KTM to CMB sometime around then if you'd rather travel in cooler conditions.

Explore more of Sri Lanka

You've done Colombo, now it's time to discover other parts of Sri Lanka. Travel around 18 kilometres south to Moratuwa to check off its top sights. From Boat House to Angulana Beach and Dilmah Conservation One Earth Arboretum, there's plenty to keep you on the go.
Jaffna is another sought-after destination in Sri Lanka and is around 306 kilometres north of Colombo. No trip is complete without dropping by Jaffna Fort, Dambakola Patuna Sangamitta Temple and Jaffna Public Library.