Cheap Flights from Kolkata to Sylhet

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Compare Kolkata to Sylhet flight deals

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

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Flight deals from Kolkata to Sylhet

Looking for a cheap last-minute deal or the best return flight from Kolkata to Sylhet? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Kolkata to Sylhet

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

Kolkata to Sylhet: Alternative routes

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

Kolkata to Sylhet: Flight information

The things to know before you go.
Cheapest flight foundR 2,291
Cheapest month to flyAugust

Finding cheap flights from Kolkata to Sylhet: Frequently asked questions

The best price we found for a return flight from Kolkata to Sylhet is R 4,607. 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 Kolkata to Sylhet. But we found flights with one or more stops from R 4,607.
As of April 2025, there are no flights flying from Kolkata to Sylhet.
The cheapest month to fly from Kolkata to Sylhet is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kolkata Airport to Sylhet Airport on Wednesday, 6 August 2025.
No airlines currently offer direct flights between Kolkata Airport and Sylhet 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 Sylhet 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 Sylhet is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, IndiGo offers the cheapest flight tickets to Sylhet.

Travelling from Netaji Subhas Chandra Bose Airport (CCU) to Osmani International Airport (ZYL): what you need to know

  • The timezone in Sylhet is UTC+6, which is 30 minutes ahead of Kolkata.

  • To ensure you get on your CCU to ZYL flight, allow plenty of time for things like baggage drop and finding your gate. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.

  • Be prepared for longer queues during popular months such as July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a good idea.

  • Break up your flight or explore another city along the way with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from Netaji Subhas Chandra Bose Airport to Osmani International Airport. Many travellers pass through Hazrat Shahjalal International Airport on this route.

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

  • R 2,291 is currently the lowest price for a one-way Netaji Subhas Chandra Bose Airport to Osmani International Airport flight. A return flight starts at R 4,607. These prices may change based on availability.

  • To get your hands on cheap tickets from CCU to ZYL, book early. Airlines tend to offer their best fares when flights are first released.

  • If you're flexible with your trip dates, use the 'Whole month' tool. It'll find the cheapest price in each month when looking for a flight from Netaji Subhas Chandra Bose Airport to Osmani International Airport.

  • Save time looking for cheap flights from CCU to ZYL by setting up a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.

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

Handy information about Netaji Subhas Chandra Bose Airport (CCU)

  • Of the departures from Netaji Subhas Chandra Bose Airport, 75.9% touch down on time at their destination.

  • To reach Netaji Subhas Chandra Bose Airport from central Kolkata, it takes about 40 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 16 kilometres from the airport to the city centre.

  • Catching public transport? Expect a trip time of around 55 minutes.

  • Need a convenient hotel close to CCU? If you're catching an early flight from Netaji Subhas Chandra Bose Airport to Osmani International Airport, these accommodation options will have you moments from your departure lounge:

Arriving at Osmani International Airport (ZYL)

  • The last thing you need is a long journey to your hotel if you're getting in late on a Netaji Subhas Chandra Bose Airport to Osmani International Airport flight. Reserve one of these accommodation options near ZYL instead:

Getting from Osmani International Airport (ZYL) to central Sylhet

  • Osmani International Airport is approximately 10 kilometres from the centre of Sylhet. Driving there takes about 20 minutes.

When to fly to Osmani International Airport (ZYL)

  • It's time to plan your travel dates for your flight from Netaji Subhas Chandra Bose Airport to Osmani International Airport. July is the most popular month to head to Sylhet. If you prefer a more laid-back vibe, go in February.

  • Lock in your flight from Netaji Subhas Chandra Bose Airport to Osmani International Airport for April if you want to go to Sylhet during its warmest month. Expect temperatures of between 21ºC (70ºF) and 35ºC (95ºF).

  • Look for cheap tickets from CCU to ZYL in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 12ºC (54ºF) and 28ºC (82ºF) on average.

Explore more of Bangladesh

  • You've visited Sylhet, now it's time to discover other corners of Bangladesh. Journey about 209 kilometres south-west to Dhaka to check off its top attractions. From National Parliament House to Dhakeshwari Temple and Bangladesh National Museum, there's plenty to keep you on the go.

  • Around 290 kilometres south of Sylhet, Chittagong is another favourite stop in Bangladesh. Get a taste of what this destination has to offer at Foy's Lake, Patenga Beach and Paharika Jame Mosque.

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