Golden Buddha statues along a riverside walkway with a city skyline in the background.

CA $285 Cheap Flights from Kathmandu (KTM) to Colombo (CMB)

View CA $285 flight on Wed, Oct 21, 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 CA $285 for one-way flights and CA $681 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Wed, Sep 23 - Fri, Sep 25
KTM
Kathmandu
CMB
Colombo
CA $681 Roundtrip, found 19 hours ago
CA $681
Roundtrip
found 19 hours ago
Select Air India flight, departing Wed, Sep 23 from Kathmandu to Colombo, returning Fri, Sep 25, priced at CA $681 found 19 hours ago
Air India
Mon, Jan 25 - Mon, Feb 1
KTM
Kathmandu
CMB
Colombo
CA $685 Roundtrip, found 4 days ago
CA $685
Roundtrip
found 4 days ago
Select Air India flight, departing Mon, Jan 25 from Kathmandu to Colombo, returning Mon, Feb 1, priced at CA $685 found 4 days ago
Air India
Wed, Sep 23 - Mon, Sep 28
KTM
Kathmandu
CMB
Colombo
CA $699 Roundtrip, found 19 hours ago
CA $699
Roundtrip
found 19 hours ago
Select Air India flight, departing Wed, Sep 23 from Kathmandu to Colombo, returning Mon, Sep 28, priced at CA $699 found 19 hours ago
Air India
Thu, Sep 3 - Wed, Sep 9
KTM
Kathmandu
CMB
Colombo
CA $708 Roundtrip, found 6 days ago
CA $708
Roundtrip
found 6 days ago
Select Air India flight, departing Thu, Sep 3 from Kathmandu to Colombo, returning Wed, Sep 9, priced at CA $708 found 6 days ago
Air India
Wed, Sep 23 - Thu, Sep 24
KTM
Kathmandu
CMB
Colombo
CA $718 Roundtrip, found 19 hours ago
CA $718
Roundtrip
found 19 hours ago
Select Air India flight, departing Wed, Sep 23 from Kathmandu to Colombo, returning Thu, Sep 24, priced at CA $718 found 19 hours ago
Air India
Mon, Jan 25 - Mon, Feb 1
KTM
Kathmandu
CMB
Colombo
CA $722 Roundtrip, found 4 days ago
CA $722
Roundtrip
found 4 days ago
Select Air India flight, departing Mon, Jan 25 from Kathmandu to Colombo, returning Mon, Feb 1, priced at CA $722 found 4 days ago
Air Arabia
Mon, Feb 1 - Fri, Feb 5
KTM
Kathmandu
CMB
Colombo
CA $750 Roundtrip, found 3 days ago
CA $750
Roundtrip
found 3 days ago
Select Air Arabia flight, departing Mon, Feb 1 from Kathmandu to Colombo, returning Fri, Feb 5, priced at CA $750 found 3 days ago
SriLankan Airlines
Mon, Jan 25 - Mon, Feb 1
KTM
Kathmandu
CMB
Colombo
CA $777 Roundtrip, found 4 days ago
CA $777
Roundtrip
found 4 days ago
Select SriLankan Airlines flight, departing Mon, Jan 25 from Kathmandu to Colombo, returning Mon, Feb 1, priced at CA $777 found 4 days ago
IndiGo
Sat, Oct 31 - Wed, Nov 4
KTM
Kathmandu
CMB
Colombo
CA $854 Roundtrip, found 3 days ago
CA $854
Roundtrip
found 3 days ago
Select IndiGo flight, departing Sat, Oct 31 from Kathmandu to Colombo, returning Wed, Nov 4, priced at CA $854 found 3 days ago
Singapore Airlines
Sun, Jan 24 - Mon, Feb 1
KTM
Kathmandu
CMB
Colombo
CA $863 Roundtrip, found 4 days ago
CA $863
Roundtrip
found 4 days ago
Select Singapore Airlines flight, departing Sun, Jan 24 from Kathmandu to Colombo, returning Mon, Feb 1, priced at CA $863 found 4 days ago

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

September is typically the cheapest month to fly

From CA $677 - CA $835 per traveller.

Frequently asked questions

How much does a flight from Kathmandu (KTM) to Colombo (CMB) cost?
You can find cheap one-way flights from CA $285 and cheap return flights from CA $681 KTM to CMB with Expedia. One-way flights typically cost between CA$464 and CA$1,748. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when KTM to CMB ticket fares go up or down.
What is the cheapest month to fly from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
The cheapest months to fly from KTM to CMB are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
Only one airline offers direct flights from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.). SriLankan Airlines operates 7 direct flights from KTM to CMB every week.
How do I find cheap flights from Kathmandu (KTM) to Colombo (CMB)?
To find a cheap flight from Kathmandu (KTM) to Colombo (CMB), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
The best airline to fly with from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.) will differ from traveler to traveler. If you like to fly early, SriLankan Airlines offers early morning flights. If price is the most important factor, SriLankan Airlines typically offers the lowest fares. Air India Express offers the most daily flights from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
While direct flights are minimal, you'll find around 28 connecting flights per day from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.). This gives you plenty of options to choose from. Some common connection points include Indira Gandhi Intl. (DEL), Hamad Intl. (DOH), and Kuala Lumpur Intl. (KUL).
What is the earliest flight from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
The earliest flight from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.) typically departs around 12:20 AM. This service is operated by flydubai. Please note that this is a seasonal service, active only in October. An early departure like this can be great for maximizing your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
You'll generally find the most flights from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.) on a Monday, with around 24 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Air India, flydubai, and Qatar Airways. Flight schedules are quite consistent throughout the week, with only a slight variation between days.
What are the most popular departure times for flights from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
The most popular departure times for flights from Kathmandu (KTM) to Colombo (CMB) are between 12pm and 3pm. Many major carriers, including Air India, Air India Express and Thai Airways International, offer flights during this window. Many travellers prefer this time as it allows for a midday departure, giving you time in the morning before your flight and an evening arrival at your destination.
How long does it take to fly from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
A non-stop flight from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.) typically takes around 3 hours 30 minutes. This route covers a distance of approximately 2,354 kilometers. If you opt for a flight with one stop, your journey will usually be much longer, taking around 16 hours 18 minutes. Flights with two or more stops will extend your travel time even further, typically to about 21 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Kathmandu (KTM-Tribhuvan Intl.) to Colombo (CMB-Bandaranaike Intl.)?
You can fly business class between KTM and CMB. Airlines that offer business class service on this route include:
  • Malaysia Airlines
  • Thai Airways International
  • SriLankan Airlines
  • China Eastern Airlines
  • Turkish Airlines
  • Air India
  • Singapore Airlines
  • flydubai
  • Qatar Airways
  • Air China
How do I earn miles on a Kathmandu (KTM) to Colombo (CMB) flight with Expedia?
It's easy to earn miles on a Kathmandu (KTM) to Colombo (CMB) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Colombo (CMB) from Kathmandu (KTM)?
If you're planning to travel to Colombo from Tribhuvan Intl. (KTM), you can fly directly into Bandaranaike Intl. (CMB). Some flights may connect through major hubs like Kempegowda Intl. (BLR), Dubai Intl. (DXB), or Indira Gandhi Intl. (DEL) before reaching Colombo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Kathmandu (KTM) to Colombo (CMB) at the last minute?
Typically, booking a last minute flight from Kathmandu (KTM) to Colombo (CMB) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Kathmandu (KTM) to Colombo (CMB) flight and hotel package?
Securing a Kathmandu (KTM) to Colombo (CMB) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kathmandu (KTM) to Colombo (CMB)?
If you booked your Kathmandu (KTM) to Colombo (CMB) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tribhuvan Intl.
Destination airport
Bandaranaike Intl.
Airlines serving
Air Arabia, Air India, IndiGo, Qatar Airways, Singapore Airlines, SriLankan Airlines, Thai Airways International
Roundtrip price
CA $680
Distance
2340 km
Average flight time
3 hours 35 mins

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Kathmandu to Seeduwa - Katunayake Flights

The easy way to book your flights from Kathmandu to Colombo 

With Expedia, it’s simple to find and book flights to Colombo from Kathmandu whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Bandaranaike Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Kathmandu to Colombo today, tomorrow, or this week.  

 

Save dollars with cheap flights from Tribhuvan Intl., KTM to Bandaranaike Intl., CMB 

Sort your search results by price to find great deals on your flight from Kathmandu to Colombo—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Colombo from Kathmandu currently is just CA $681 rising to CA $863.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Colombo  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Colombo from Kathmandu 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Colombo with Expedia today.

Kathmandu to Seeduwa - Katunayake Flights

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