December is by far the best month, wherein you can get cheapest flights for Colombo to Kathmandu. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

CMB
17:05
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
00:15
Kathmandu
Tribhuvan International Airport
Fri, 12 Dec 2025

CMB
20:20
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
16:00
Kathmandu
Tribhuvan International Airport
Fri, 12 Dec 2025

CMB
01:05
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
16:00
Kathmandu
Tribhuvan International Airport
Thu, 11 Dec 2025

CMB
22:25
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
11:35
Kathmandu
Tribhuvan International Airport
Fri, 12 Dec 2025

CMB
00:40
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
21:15
Kathmandu
Tribhuvan International Airport
Thu, 11 Dec 2025

CMB
01:45
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
14:35
Kathmandu
Tribhuvan International Airport
Thu, 11 Dec 2025

CMB
11:15
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
08:20
Kathmandu
Tribhuvan International Airport
Fri, 12 Dec 2025

CMB
09:50
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
00:15
Kathmandu
Tribhuvan International Airport
Fri, 12 Dec 2025

CMB
00:40
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
20:40
Kathmandu
Tribhuvan International Airport
Thu, 11 Dec 2025

CMB
22:25
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
11:20
Kathmandu
Tribhuvan International Airport
Fri, 12 Dec 2025

CMB
00:45
Colombo
Bandaranaike International Colombo Airport
Thu , 11 Dec 2025

KTM
21:30
Kathmandu
Tribhuvan International Airport
Thu, 11 Dec 2025










Flying from Colombo to Kathmandu has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Colombo to Kathmandu is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Bandaranaike International Colombo Airport (CMB) and Tribhuvan International Airport (KTM). You can expect a flight distance of approximately 2353 km, and most direct services cover it in around 16:08.
Let’s take a closer look at everything you need to know before booking your flight from Colombo to Kathmandu.
| Flight Details | Information |
|---|---|
| Route Distance | 2353 km |
| Average Flight Time | 16:08 hrs |
| Departure Airport | Bandaranaike International Colombo Airport (CMB) |
| Arrival Airport | Tribhuvan International Airport (KTM) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | Air India, China Eastern Airlines, Air China, Malaysia Airlines |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.