Cheap Flights from Kathmandu (KTM) to Kolkata (CCU)

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Flight deals from Kathmandu Airport to Kolkata Airport

Looking for a cheap last-minute deal or the best return flight from Kathmandu Airport to Kolkata Airport? If you want to travel next month, return fares start from £217. Find the lowest prices on one-way and return tickets right here.
Is this a good flight price? We’ll tell you.We compare today’s Kathmandu Airport to Kolkata Airport prices with what travellers usually pay, so you can see if now’s a good time to book, or if it’s worth waiting.

Find the cheapest month to fly from Kathmandu to Kolkata

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to Kolkata flights are currently cheapest in March.

Direct flights from Kathmandu to Kolkata

Kathmandu to Kolkata: Alternative routes

Compare routes from Kathmandu to Kolkata below. You may find an airport to fly into that's cheaper, faster, or easier than Kolkata.

Kathmandu to Kolkata: Flight information

The things to know before you go.
Cheapest flight found£199
Cheapest month to flyApril
Average flight time1 hr, 55 mins
Most popular airlineBuddha Air
Average flights per week10

Finding cheap flights from Kathmandu to Kolkata: Frequently asked questions

The best price we found for a return flight from Kathmandu to Kolkata is £199. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 55 minutes is the average flight time from Kathmandu to Kolkata.
Buddha Air and Hahn Air Systems fly direct from Kathmandu to Kolkata.
As of March 2026, there are 10 flights per week flying from Kathmandu to Kolkata.
The cheapest month to fly from Kathmandu to Kolkata is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Kolkata Airport on Thursday, 30 April 2026.
Yes – the average flight time is 1 hour and 55 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kolkata but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kolkata is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air India offers the cheapest flight tickets to Kolkata.

Flying from Tribhuvan International Airport (KTM) to Netaji Subhas Chandra Bose Airport (CCU): what you need to know

  • Around 1 hour 40 minutes is how long you'll be travelling on a direct flight from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport.

  • The timezone in Kolkata is UTC+5:30, which is 17 minutes behind Kathmandu.

  • Take your pick of six weekly Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport flights. The 14:30 departure with Air India is the earliest flight you can take. Air India operates the latest service of the day at 14:35.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport on time to board your KTM to CCU flight.

  • During popular months such as September, it's a good idea to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're travelling during a high season in general.

  • Air India has direct flights from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport. Book with this popular carrier, then get ready to check out the sights in Kolkata — and maybe even more of India if your schedule allows.

  • Air India is the airline with the highest passenger demand for this route.

  • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to tour your chosen city. Some great stopovers between KTM and CCU include:

    • Hazrat Shahjalal International Airport

    • Indira Gandhi International Airport

    • Chhatrapati Shivaji International Airport

How to find the cheapest flights from Tribhuvan International Airport (KTM) to Netaji Subhas Chandra Bose Airport (CCU)

  • Currently, £100 is the lowest price we've found for a one-way Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport flight. The best price for a return ticket is £199. Bear in mind that fares could change due to availability when booking.

  • Book four months before flying. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from KTM to CCU.

  • Plan your trip for March. That's the cheapest month for flights from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport. If you're flexible on when you fly, use the 'Whole month' tool to see the cheapest airfare across each month.

  • Stay on top of deals for cheap flights from KTM to CCU by setting up a Price Alert. You'll receive an email or notification on the app when a lower fare pops up.

  • Tailor your trip with filters. Select your preferred arrival and departure times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport.

Handy information about Tribhuvan International Airport (KTM)

  • Tribhuvan International Airport is about 3 miles from central Kathmandu. If you're catching a cab, ride-sharing or driving from the centre, it'll take 15 minutes or so to arrive, depending on the traffic.

  • Searching for a handy hotel near KTM? If you're catching an early flight from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport, these accommodation options will put you moments from your departure lounge:

Arriving at Netaji Subhas Chandra Bose Airport (CCU)

Getting from Netaji Subhas Chandra Bose Airport (CCU) to central Kolkata

  • Netaji Subhas Chandra Bose Airport is roughly 10 miles from the centre of Kolkata. The drive time takes about 40 minutes.

  • If you're using public transport, expect a journey time of around 55 minutes.

When to fly to Netaji Subhas Chandra Bose Airport (CCU)

  • It's time to choose your trip dates for your flight from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport. July is the most popular month to head to Kolkata. If you're after a more laid-back vibe, go in April.

  • The warmest month in Kolkata is April, with temperatures ranging between 24ºC (75ºF) and 42ºC (108ºF). Book your flights from Tribhuvan International Airport to Netaji Subhas Chandra Bose Airport in this month if you enjoy this type of weather.

  • Look for cheap tickets from KTM to CCU in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 15ºC (59ºF) and 29ºC (84ºF) on average.

Explore more of India

  • Patna is just one of the many places in India waiting to be discovered once you've seen the sights of Kolkata. Around 290 miles away to the north-west, well-known attractions include Mahatma Gandhi Setu, Bihar Museum and Golghar.

  • If you're interested in discovering another well-known destination in India, head for Ranchi, about 200 miles west of Kolkata. Rock Garden, Jagannath Temple and Deer Park are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.