£416 Find Cheap Flights from London to Sylhet – Compare and Save

These are the earliest and latest flight times available from London to Sylhet:

• Earliest: departs at 18:15 and lands at 03:55
• Latest: departs at 18:15 and lands at 03:55.

The flight takes about 9h 40m.

Three cabin classes are available on flights from London to Sylhet:

• Economy class
• Premium Economy Class
• Business Class

A direct flight from London to Sylhet takes 9h 40m, covering 4,965 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from London to Sylhet range from £792 to £1,082, with an average of £907 over the past 12 months. Anything below £792 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 2% above the £907 route average. Book 26 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £790 return via Jeddah King Abdulaziz Intl (JED), compared with £929 for direct.

Biman Bangladesh is the only airline operating London to Sylhet flights. 73% of its flights are on time.

Evening is the busiest departure period on London to Sylhet flights, with 100% leaving in that window. Morning departures account for 0%, Afternoon flights for 0%, and Night flights for 0%.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £742 to £4,673. That means the highest observed fare was about 6x higher than the lowest one.

One-way fares from London to Sylhet are currently lower than usual. Average one-way flight prices are about £455, which is 19% below the typical average for this route.

Flights from London to Sylhet may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Sylhet Osmani Intl (ZYL).

Evening flights have the fewest delays on this route, while night departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to Sylhet route, 27% of flights were delayed in the past three months, with delays averaging 3h 17m.

One-stop flights from London to Sylhet most commonly connect through:

• Dhaka Hazrat Shahjalal Intl (DAC) – 75% of one-stop connections
• Jeddah King Abdulaziz Intl (JED) – 11% of one-stop connections
• Muscat Seeb (MCT) – 7% of one-stop connections
• Dubai Intl (DXB) – 5% of one-stop connections

Yes. Flexible dates can save you up to 11% on flights from London to Sylhet. Tuesday is the cheapest departure day at £834 return on average, while Friday is the most expensive at £935, a difference of £101.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Only Biman Bangladesh operates flights between London and Sylhet.

Flying via Sharjah (SHJ) gives the shortest average 1-stop total travel time of 15h 54m, compared to 16h 55m via Muscat Seeb (MCT) and 19h 08m via Dubai Intl (DXB).

Sylhet is 6 hours ahead of London (Bangladesh Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

Here are some options for this route, based on selected ticket types and cabin classes:

• Biman Bangladesh: a cabin bag and a checked bag in Economy class
• Lufthansa: a cabin bag and a checked bag in Economy class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

The vast majority of flights on this route are indirect. Turkish Airlines and Emirates operate many of them, in combination with US-Bangla Airlines. A common route you can book is the one flown by Air India together with Vistara and US-Bangla. Qatar Airlines also offers flights in conjunction with Biman Bangladesh Airlines. Given the number of airlines involved, these are generally two- or three-stop flights.

On this route, you'll either leave from London Heathrow Airport or London Gatwick Airport. To get to the former, simply hop onto the Heathrow Express at Paddington Station and you'll be there in about 15min. To get to Gatwick, catch the Gatwick Express, which takes about 30min. Once you've landed at Sylhet Osmani International, you can either collect your hire car or take a taxi into town. It's about an 8min drive.

You can save as much as 50% on carbon emissions by using a combination of airlines. The ticket to book will have you leaving London on Air India and flying to New Delhi Indira Gandhi Airport (DEL). Here, you'll change to Vistara for a flight to Dhaka Zia International (DAC) in Bangladesh, before switching to US-Bangla Airlines for the short connecting flight to Sylhet. While there are a few take-off and landing cycles, it's still a more carbon-efficient route.

Heathrow and Gatwick have particularly good amenities for passengers who have limited mobility, as well as those with hidden disabilities. A dedicated team will look after your needs – simply advise your airline or travel agent at least 48h in advance. All amenities like restrooms have been adapted for accessibility. You can get wheelchair assistance at Sylhet Airport, and staff is on hand in case you need personal assistance.