฿8,631 Cheap Flights from Kathmandu (KTM) to Colombo (CMB)

View ฿8,631 flight on Fri, 18 Sept 2026Opens in a new window

Popular airlines from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)

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Cheap Flights from Kathmandu (KTM) to Colombo (CMB)

Prices were available within the past 7 days and start at ฿8,631 for one-way flights and ฿17,845 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

SriLankan Airlines
Thu, 5 Nov - Thu, 12 Nov
KTM
Kathmandu
CMB
Colombo
฿17,845 Return, found 5 days ago
฿17,845
Return
found 5 days ago
Select SriLankan Airlines flight, departing Thu, 5 Nov from Kathmandu to Colombo, returning Thu, 12 Nov, priced at ฿17,845 found 5 days ago
Air India
Fri, 6 Nov - Fri, 13 Nov
KTM
Kathmandu
CMB
Colombo
฿17,960 Return, found 5 days ago
฿17,960
Return
found 5 days ago
Select Air India flight, departing Fri, 6 Nov from Kathmandu to Colombo, returning Fri, 13 Nov, priced at ฿17,960 found 5 days ago
Air India
Sun, 19 Apr - Sat, 25 Apr
KTM
Kathmandu
CMB
Colombo
฿18,160 Return, found 2 days ago
฿18,160
Return
found 2 days ago
Select Air India flight, departing Sun, 19 Apr from Kathmandu to Colombo, returning Sat, 25 Apr, priced at ฿18,160 found 2 days ago
Air India
Thu, 19 Feb - Mon, 23 Feb
KTM
Kathmandu
CMB
Colombo
฿19,050 Return, found 2 days ago
฿19,050
Return
found 2 days ago
Select Air India flight, departing Thu, 19 Feb from Kathmandu to Colombo, returning Mon, 23 Feb, priced at ฿19,050 found 2 days ago
Air India
Sun, 19 Apr - Sat, 25 Apr
KTM
Kathmandu
CMB
Colombo
฿19,165 Return, found 2 days ago
฿19,165
Return
found 2 days ago
Select Air India flight, departing Sun, 19 Apr from Kathmandu to Colombo, returning Sat, 25 Apr, priced at ฿19,165 found 2 days ago
Air India
Thu, 19 Feb - Mon, 23 Feb
KTM
Kathmandu
CMB
Colombo
฿20,050 Return, found 2 days ago
฿20,050
Return
found 2 days ago
Select Air India flight, departing Thu, 19 Feb from Kathmandu to Colombo, returning Mon, 23 Feb, priced at ฿20,050 found 2 days ago
SriLankan Airlines
Thu, 19 Feb - Mon, 23 Feb
KTM
Kathmandu
CMB
Colombo
฿20,530 Return, found 2 days ago
฿20,530
Return
found 2 days ago
Select SriLankan Airlines flight, departing Thu, 19 Feb from Kathmandu to Colombo, returning Mon, 23 Feb, priced at ฿20,530 found 2 days ago
Qatar Airways
Thu, 5 Nov - Thu, 12 Nov
KTM
Kathmandu
CMB
Colombo
฿21,355 Return, found 5 days ago
฿21,355
Return
found 5 days ago
Select Qatar Airways flight, departing Thu, 5 Nov from Kathmandu to Colombo, returning Thu, 12 Nov, priced at ฿21,355 found 5 days ago
Thai Airways International
Fri, 6 Nov - Fri, 13 Nov
KTM
Kathmandu
CMB
Colombo
฿22,160 Return, found 5 days ago
฿22,160
Return
found 5 days ago
Select Thai Airways International flight, departing Fri, 6 Nov from Kathmandu to Colombo, returning Fri, 13 Nov, priced at ฿22,160 found 5 days ago
Singapore Airlines
Fri, 6 Nov - Fri, 13 Nov
KTM
Kathmandu
CMB
Colombo
฿22,875 Return, found 5 days ago
฿22,875
Return
found 5 days ago
Select Singapore Airlines flight, departing Fri, 6 Nov from Kathmandu to Colombo, returning Fri, 13 Nov, priced at ฿22,875 found 5 days ago

Find the cheapest month to fly from Kathmandu (KTM) to Colombo (CMB)

July is typically the cheapest month to fly

From ฿12,916 - ฿18,299 per traveller.
Flight from Kathmandu to Colombo route information
Origin airport
Tribhuvan Intl.
Destination airport
Bandaranaike Intl.
Return price
฿17,845
Distance
2340 km
Average flight time
3 hours 35 mins

Perfect flights from Kathmandu to Colombo

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Kathmandu to Colombo. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Tribhuvan Intl. to Bandaranaike Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿8,631 and roundtrip prices from ฿17,845. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Bandaranaike Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Colombo.

Frequently asked questions

How much is a flight from Tribhuvan Intl. Airport (KTM) to CMB?
The lowest price advertised for a round-trip journey from Tribhuvan Intl. Airport to CMB is ฿17,845. But you better act quick. This figure is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from KTM to Bandaranaike Intl. Airport (CMB)?
This can vary between air carriers, as each has its own terms and conditions. Head to the Customer Service Portal, where you'll find easy instructions on how to cancel online.
How do I find cheap flights from Tribhuvan Intl. Airport to CMB that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Tribhuvan Intl. Airport to Bandaranaike Intl. Airport (CMB) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Tribhuvan Intl. Airport (KTM) to CMB?
Around 2,400 kilometres separates Kathmandu and Seeduwa - Katunayake, so pack something to keep you busy for a couple of hours. That thrilling novel you haven't had time to start will be just the ticket.
Which airlines fly direct from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
Check out SriLankan Airlines (UL) if you want to travel directly from Tribhuvan Intl. Airport (KTM) to Colombo International Airport. This carrier offers 21 monthly flights, so you're sure to find one that fits your travel plans.
Are KTM to CMB flight tickets cheaper when they're purchased at the last minute?
Fares from Tribhuvan Intl. Airport to Bandaranaike Intl. Airport (CMB) are available up to a year before departure on Expedia. And although you may pick up fantastic last-minute deals, it's not something you should count on. Also, booking your flights well in advance means you'll have more options — and you can avoid getting trapped in the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.
*Available to Expedia members.