$221 Cheap Flights from Kathmandu (KTM) to Colombo (CMB)

View $221 flight on Thu, Aug 21, 2025Opens in a new window

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

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Cheap Flights from Kathmandu to Colombo (KTM-CMB)

Prices were available within the past 7 days and start at $221 for one-way flights and $404 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Thu, Aug 21 - Wed, Aug 27
KTM
Kathmandu
CMB
Colombo
$404 Roundtrip, found 9 hours ago
$404
Roundtrip
found 9 hours ago
Select Air India flight, departing Thu, Aug 21 from Kathmandu to Colombo, returning Wed, Aug 27, priced at $404 found 9 hours ago
Air India
Wed, Aug 27 - Sat, Sep 6
KTM
Kathmandu
CMB
Colombo
$405 Roundtrip, found 2 hours ago
$405
Roundtrip
found 2 hours ago
Select Air India flight, departing Wed, Aug 27 from Kathmandu to Colombo, returning Sat, Sep 6, priced at $405 found 2 hours ago
Air India
Wed, Aug 27 - Fri, Sep 12
KTM
Kathmandu
CMB
Colombo
$419 Roundtrip, found 2 hours ago
$419
Roundtrip
found 2 hours ago
Select Air India flight, departing Wed, Aug 27 from Kathmandu to Colombo, returning Fri, Sep 12, priced at $419 found 2 hours ago
Air India
Fri, Aug 1 - Sun, Aug 3
KTM
Kathmandu
CMB
Colombo
$421 Roundtrip, found 6 days ago
$421
Roundtrip
found 6 days ago
Select Air India flight, departing Fri, Aug 1 from Kathmandu to Colombo, returning Sun, Aug 3, priced at $421 found 6 days ago
Air India
Fri, Aug 1 - Fri, Aug 8
KTM
Kathmandu
CMB
Colombo
$423 Roundtrip, found 2 days ago
$423
Roundtrip
found 2 days ago
Select Air India flight, departing Fri, Aug 1 from Kathmandu to Colombo, returning Fri, Aug 8, priced at $423 found 2 days ago
Air India
Sun, Aug 3 - Mon, Aug 4
KTM
Kathmandu
CMB
Colombo
$434 Roundtrip, found 6 hours ago
$434
Roundtrip
found 6 hours ago
Select Air India flight, departing Sun, Aug 3 from Kathmandu to Colombo, returning Mon, Aug 4, priced at $434 found 6 hours ago
IndiGo
Sun, Aug 3 - Fri, Aug 8
KTM
Kathmandu
CMB
Colombo
$474 Roundtrip, found 3 days ago
$474
Roundtrip
found 3 days ago
Select IndiGo flight, departing Sun, Aug 3 from Kathmandu to Colombo, returning Fri, Aug 8, priced at $474 found 3 days ago
Singapore Airlines
Fri, Mar 20 - Tue, Mar 24
KTM
Kathmandu
CMB
Colombo
$563 Roundtrip, found 6 days ago
$563
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Fri, Mar 20 from Kathmandu to Colombo, returning Tue, Mar 24, priced at $563 found 6 days ago
SriLankan Airlines
Thu, Aug 21 - Wed, Aug 27
KTM
Kathmandu
CMB
Colombo
$579 Roundtrip, found 9 hours ago
$579
Roundtrip
found 9 hours ago
Select SriLankan Airlines flight, departing Thu, Aug 21 from Kathmandu to Colombo, returning Wed, Aug 27, priced at $579 found 9 hours ago
Qatar Airways
Wed, Dec 24 - Wed, Dec 31
KTM
Kathmandu
CMB
Colombo
$693 Roundtrip, found 1 day ago
$693
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Wed, Dec 24 from Kathmandu to Colombo, returning Wed, Dec 31, priced at $693 found 1 day ago

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

July is typically the cheapest month to fly

From $400 - $587 per traveler.

Graph displaying average flight prices per month

Alternative airports near Colombo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Bandaranaike Intl. CMB. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $438
CMB
Bandaranaike Intl.
Cheapest
Average driving time to city center28 min
Flights from $438
Flights from Kathmandu (KTM) to Colombo (CMB)
Origin airport
Tribhuvan Intl.
Destination airport
Bandaranaike Intl.
Airlines serving
Air India, Cathay Pacific, China Eastern Airlines, IndiGo, Qatar Airways, Singapore Airlines, SriLankan Airlines, Thai Airways International, flydubai
Roundtrip price
$404
Distance
1462 mi
Average flight time
3 hours 40 mins

Kathmandu to Colombo Flights

The cheapest times to fly from Kathmandu to Colombo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kathmandu to Colombo are during the month of August. You can find some of the cheapest flights from Kathmandu to Colombo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kathmandu to Colombo

Sunday is one of the best days to book for cheap flights from Kathmandu to Colombo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kathmandu to Colombo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kathmandu to Colombo in 2025. You can also book with separate airlines for your outbound and return journeys, from $221 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kathmandu to Colombo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kathmandu to Colombo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB) cost?
Pick up cheap return tickets starting from $583 from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a SriLankan Airlines flight leaving KTM on August 17 2025 and touching down at CMB. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from KTM to CMB?
The cheapest flights from KTM to CMB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
Take a direct flight with SriLankan Airlines and journey straight from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB).
What is the cheapest airline that flies from KTM to CMB?
Travel from KTM to CMB with SriLankan Airlines. This airline currently has the lowest one-way fare for this route, starting at $379. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from KTM on October 15 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
On average, you can take your pick of 4 direct flights departing from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB) each week. If you don't find one that works for your schedule, consider booking a flight that has a layover. Filter your search on Expedia to include one stop or more and select the next best alternative.
What are the most popular departure times for flights from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
The 12 PM departures from KTM to CMB are typically the busiest. They can also be more expensive. If you're looking to save, pick a less crowded time to fly.
What day of the week has the most flights from KTM to CMB?
Fly on a Thursday if you're after the best choice of flights from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB).
What is the earliest flight from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
Tribhuvan Intl. Airport (KTM)'s first flight to Bandaranaike Intl. Airport (CMB) takes off at approximately 12:50PM UTC+5. With a total travel time of 3h 35m, you'll land at around 4:10PM UTC+5.
How long does it take to fly from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
Flights from KTM to CMB have an average travel time of 3 hours and 35 minutes. The distance between these two airports is 1,450 mi.
What is the best time to fly from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
To reach Bandaranaike Intl. Airport (CMB) without delays, choose a flight that leaves from Tribhuvan Intl. Airport (KTM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Colombo from Tribhuvan Intl. Airport (KTM)?
Bandaranaike Intl. Airport (CMB) is the only airport in Colombo with direct flights from Tribhuvan Intl. Airport (KTM). Check out your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB) last-minute?
Waiting until just before your trip to book a flight from KTM to CMB often results in higher prices. While you may find some last-minute deals, they aren't always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a KTM to CMB flight and hotel package?
Opting for a KTM to CMB flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of stays and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tribhuvan Intl. Airport (KTM) to Bandaranaike Intl. Airport (CMB)?
If you booked your KTM to CMB flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

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*Available to One Key members.