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£342+ Cheap flights to Sylhet

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
— ZYL
20 Aug — 27 Aug1
1 adult

Flights to Sylhet in 2025

Find the latest flights to Sylhet in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 15 August 2025.

Return from

£684

One-way from

£342

Popular in

December

Cheapest in

September

Average price

£1,030

Good round-trip deal

£769 or less

Good one-way deal

£558 or less
Biman Bangladesh
  • Biman Bangladesh
  • 17/9-2/10
  • Nonstop
  • 21h 05m total
  • London to Sylhet
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30/9
  • 30/9
  • 2 total stops
  • 38h 55m total
  • London to Sylhet
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Highest demand for flights based on searches. 12% potential increase in price (£92 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£26 potential savings vs. average return price).
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Average for return flights in August 2025
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Price to beat on a round-trip flight from London to Sylhet Osmani Intl.
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Price to beat on a one-way flight from London to Sylhet Osmani Intl.
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Find flight deals to Sylhet

Cheapest flights to Sylhet
Explore the most affordable flight options available to Sylhet. Find the lowest fares based on data from user searches, with prices last updated on 15 August 2025.

Wed 17/918:20LHR - ZYL
Nonstop9h 45mBiman Bangladesh
Thu 2/1010:45ZYL - LHR
Nonstop11h 20mBiman Bangladesh
Deal found 15/8£684
Fri 12/918:20LHR - ZYL
Nonstop9h 45mBiman Bangladesh
Wed 1/1009:35ZYL - LHR
Nonstop11h 20mBiman Bangladesh
Deal found 14/8£685
Fri 24/1006:25LGW - ZYL
3 stops34h 05mMultiple Airlines
Sat 15/1120:50ZYL - LGW
3 stops31h 15mMultiple Airlines
Deal found 13/8£688
Sun 7/918:20LHR - ZYL
Nonstop9h 45mBiman Bangladesh
Wed 22/1009:35ZYL - LHR
Nonstop11h 20mBiman Bangladesh
Deal found 13/8£689
Sun 14/918:20LHR - ZYL
Nonstop9h 45mBiman Bangladesh
Wed 15/1009:35ZYL - LHR
Nonstop11h 20mBiman Bangladesh
Deal found 14/8£691
Sat 27/918:20LHR - ZYL
Nonstop9h 45mBiman Bangladesh
Sat 4/1009:35ZYL - LHR
Nonstop11h 20mBiman Bangladesh
Deal found 13/8£695
Fri 12/918:20LHR - ZYL
Nonstop9h 45mBiman Bangladesh
Fri 26/909:35ZYL - LHR
Nonstop11h 20mBiman Bangladesh
Deal found 13/8£698
Wed 20/806:30LHR - ZYL
3 stops34h 00mMultiple Airlines
Wed 27/811:50ZYL - LHR
3 stops35h 50mMultiple Airlines
Deal found 13/8£699
Fri 10/1006:25LGW - ZYL
3 stops34h 05mMultiple Airlines
Sat 1/1120:50ZYL - LGW
3 stops31h 15mMultiple Airlines
Deal found 12/8£701
Tue 2/1210:00LHR - ZYL
2 stops25h 20mMultiple Airlines
Tue 23/1208:30ZYL - LHR
2 stops29h 00mMultiple Airlines
Deal found 14/8£714
Tue 19/807:10LGW - ZYL
3 stops33h 20mMultiple Airlines
Wed 10/912:15ZYL - LGW
3 stops24h 05mMultiple Airlines
Deal found 14/8£716
Thu 13/1106:25LGW - ZYL
2 stops31h 05mMultiple Airlines
Thu 20/1111:00ZYL - LGW
2 stops35h 10mMultiple Airlines
Deal found 13/8£717

Cheapflights Fare Finder

 
Locate flights to Sylhet that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 15 August 2025.
Use the filters below to find and compare flights to Sylhet that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Fri 12/9

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Wed 1/10

09:35-15:55

Nonstop11h 20m

£685

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Fri 24/10

06:25-21:30

3 stops34h 05m

Sylhet Osmani Intl

Sat 15/11

20:50-22:05

3 stops31h 15m

£688

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sun 7/9

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Wed 22/10

09:35-15:55

Nonstop11h 20m

£689

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sun 14/9

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Wed 15/10

09:35-15:55

Nonstop11h 20m

£689

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sat 27/9

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Sat 4/10

09:35-15:55

Nonstop11h 20m

£695

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sat 20/9

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Sat 18/10

09:35-15:55

Nonstop11h 20m

£696

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sat 27/9

12:30-16:00

2 stops22h 30m

Sylhet Osmani Intl

Sat 4/10

16:30-11:30

2 stops24h 00m

£698

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Fri 19/9

11:20-16:00

3 stops23h 40m

Sylhet Osmani Intl

Wed 24/9

11:50-14:05

3 stops31h 15m

£698

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Fri 12/9

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Fri 26/9

09:35-15:55

Nonstop11h 20m

£698

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sun 31/8

18:20-09:05

Nonstop9h 45m

Sylhet Osmani Intl

Thu 25/9

10:45-17:05

Nonstop11h 20m

£699

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 47 results
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Best time to book a flight to Sylhet

Have a flexible travel schedule? Discover the best time to fly to Sylhet with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Sylhet

When is the best time to book a flight to Sylhet?

Use this chart to determine the optimal time to book a return flight from London to Sylhet. Price data was last updated on 8 August 2025.

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights to Sylhet. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Sylhet?

On average, a flight from London to Sylhet takes 16 hours 51 minutes. Flights to Sylhet from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Sylhet?

The most popular airline flying from London to Sylhet is Biman Bangladesh.

Biman Bangladesh
Biman Bangladesh
From £773

What are the cheapest airlines that fly to Sylhet?

The cheapest airline flying from London to Sylhet is Biman Bangladesh.

Rainfall in Sylhet by month

Plan your trip to Sylhet by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sylhet ranges from 8.0 - 812.0 inches per month. June is typically the wettest month, when rainfall can reach 812.0 mm. December is typically the driest time to visit Sylhet when rainfall is around 8.0 mm.

Temperature in Sylhet by month

Plan your trip to Sylhet by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sylhet, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 18.0 C).

FAQs about flying to Sylhet

Getting around Sylhet

Public transport isn’t Sylhet’s strongest suit. The city offers neither buses nor trams, with the only viable option being auto rickshaws. Having said that, since there are no auto rickshaw stops in the big residential areas, people have to walk all the way to the highway to hail a ride. Alternatively, use taxis or your own transport. The city is also navigable on foot, but this is not an ideal situation for a place as large as Sylhet.

Getting from the Airport to the City

Sylhet is served by Osmani International Airport (ZYL). Visitors can choose from a number of transport options to the city centre, including taxis, microbus, and auto rickshaws. Car rental is also available.

  • What airport do you fly into for flights to Sylhet?

    Sylhet Osmani Intl (ZYL), located 4.3 mi from the city center, is the airport you fly into when you book flights to Sylhet.

  • Can I find cheaper flights to Sylhet if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Sylhet on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Sylhet?

    Based on reviews from Cheapflights users, Biman Bangladesh is rated the highest out of the airlines that fly to Sylhet.

  • What is the cheapest airport to fly to in Sylhet?

    Sylhet Osmani Intl is currently the cheapest airport to fly to in Sylhet. One-way flights to Sylhet Osmani Intl typically cost £16, while return flights cost around £36.

  • How much is a return flight to Sylhet?

    A return flight to Sylhet will typically cost around £80, however they can be found for as little as £48.

  • Where does the fastest flight to Sylhet depart from?

    For those looking to save time traveling to Sylhet, London offers the quickest one-way flight (9 hours 45 minutes).

  • Are there hotels close to Sylhet Osmani Intl?

    Yes. Sylhet Osmani Intl has hotels nearby for those requiring accommodations. Grand Sylhet Hotel & Resort is the closest property to Sylhet Osmani Intl (0.0 mi away from Sylhet Osmani Intl).

See more FAQs

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Fly with Cheapflights

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How does Cheapflights help users find flights to Sylhet?

Cheapflights helps you search for flights to Sylhet via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to Sylhet?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Sylhet.

Can Cheapflights find flights to Sylhet with no change fees?

Yes, we can. To see specific flights to Sylhet with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to Sylhet become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Sylhet today and book when you’re ready!

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