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Find cheap one-way flights from Kathmandu to Colombo starting at US$216.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Kathmandu to Colombo?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Kathmandu to Colombo

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Royal Nepal Airlines
From US$209
Vistara
From US$253
Thai Lion Air
From US$266
Biman Bangladesh Airlines
From US$269
Himalaya Airlines
From US$272
Thai Airways
From US$280
FlexFlight
From US$283
IndiGo
From US$298
Batik Air Malaysia
From US$313
SriLankan Airlines
From US$336
ANA airlines

Find more flights and airlines

Find cheap flights from Kathmandu to Colombo by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Kathmandu to Colombo.

  • Cheapest
    IndiGo
    KTM
    16:30
    22h 45m
    2 transfer
    CMB
    15:00
    Tribhuvan International Airport - Bandaranaike International Airport
    Thu, May 2IndiGo
    US$298
  • IndiGo
    KTM
    16:30
    22h 45m
    2 transfer
    CMB
    15:00
    Tribhuvan International Airport - Bandaranaike International Airport
    Thu, May 2IndiGo
    US$298
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Kathmandu (KTM) to Colombo (CMB) the cheapest?

    Airlines adjust prices for flights from Kathmandu to Colombo based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Kathmandu (KTM) to Colombo (CMB) cost?

    According to Trip.com's data, the lowest price is around $586.
  • How long does it take to fly from Kathmandu (KTM) to Colombo (CMB) and what is the distance?

    It takes around 3 hours 40 minutes to fly from Kathmandu (KTM) to Colombo (CMB).
  • What is the transportation method from the main airport to downtown in Colombo?

    • The distance from Bandaranaike International Airport to downtown is about 29km. It takes about 40 minutes by taxi.
  • What are the most popular airlines that fly from Kathmandu (KTM) to Colombo (CMB)?

    Airlines with flights from Kathmandu (KTM) to Colombo (CMB): SriLankan Airlines.

Kathmandu to Colombo Flight Information

Cheapest nonstop flight price

$216

Cheapest round-trip ticket price

$528

Off-season for travel

January

Peak season for travel

September

What You Should Know about Flights from Kathmandu to Colombo