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Cheap Flights from Kathmandu to Kolkata

Compare Kathmandu to Kolkata flight deals

Find the cheapest month or even day of the year to fly to Kolkata

Book the best Kolkata fare with no extra fees

Flight deals from Kathmandu to Kolkata

Looking for a cheap last-minute deal or the best return flight from Kathmandu to Kolkata? Find the lowest prices on one-way and return tickets right here.
Kolkata.Rs36,326 per passenger.Departing Sat, 16 Aug.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Sat, 16 Aug, arriving in Kolkata.Price includes taxes and charges.From Rs36,326, select.
Kolkata.Rs38,355 per passenger.Departing Fri, 5 Sep.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Fri, 5 Sep, arriving in Kolkata.Price includes taxes and charges.From Rs38,355, select.
Kolkata.Rs45,971 per passenger.Departing Sat, 13 Dec.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Sat, 13 Dec, arriving in Kolkata.Price includes taxes and charges.From Rs45,971, select.
Kolkata.Rs48,934 per passenger.Departing Wed, 11 Mar.One-way flight with Nepal Airlines.Outbound indirect flight with Nepal Airlines, departs from Kathmandu on Wed, 11 Mar, arriving in Kolkata.Price includes taxes and charges.From Rs48,934, select.
Kolkata.Rs49,079 per passenger.Departing Thu, 16 Oct.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Thu, 16 Oct, arriving in Kolkata.Price includes taxes and charges.From Rs49,079, select.
Kolkata.Rs49,260 per passenger.Departing Thu, 26 Feb.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Thu, 26 Feb, arriving in Kolkata.Price includes taxes and charges.From Rs49,260, select.
Kolkata.Rs53,112 per passenger.Departing Thu, 6 Nov.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Thu, 6 Nov, arriving in Kolkata.Price includes taxes and charges.From Rs53,112, select.
Kolkata.Rs62,951 per passenger.Departing Wed, 22 Apr.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Wed, 22 Apr, arriving in Kolkata.Price includes taxes and charges.From Rs62,951, select.

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 August.
Aug
from Rs36,326
Sep
from Rs38,355
Oct
from Rs49,079
Nov
from Rs53,112
Dec
from Rs45,971
Jan
from Rs178,231
Feb
from Rs49,260
Mar
from Rs48,934
Apr
from Rs62,951
May
from Rs178,629
Jun
Find prices
Jul
Find prices

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 foundRs36,326
Cheapest month to flyAugust

Finding cheap flights from Kathmandu to Kolkata: Frequently asked questions

The best price we found for a return flight from Kathmandu to Kolkata is Rs65,369. 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.
Currently, there are no airlines that fly direct from Kathmandu to Kolkata. But we found flights with one or more stops from Rs65,369.
As of August 2025, there are no flights flying from Kathmandu to Kolkata.
The cheapest month to fly from Kathmandu to Kolkata is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Kolkata Airport on Saturday, 16 August 2025.
No airlines currently offer direct flights between Kathmandu Airport and Kolkata Airport. Most routes have one or more stops.
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, Rs36,326 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 Rs65,369. 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 5 kilometres 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 16 kilometres 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 and 42ºC. 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 and 29ºC 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 467 kilometres 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 322 kilometres west of Kolkata. Rock Garden, Jagannath Temple and Deer Park are key reasons to visit.

Plan the rest of your trip from Kathmandu to Kolkata

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