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Cheap flights from London to Sylhet from £356

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ZYL
23 Feb — 2 Mar1
1 adult

The best prices from London to Sylhet Osmani Intl are usually found in September or May, booked 17 days in advance, depart on a Sunday or Wednesday and return on a Thursday

Cheap flight deals from London to Sylhet

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Sylhet (ZYL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 February 2025.

Round-trip from

£732

One-way from

£356

Popular in

December

Cheapest in

September

Average price

£857

Good round-trip deal

£744 or less

Good one-way deal

£548 or less
19/4-17/5
  • 19/4-17/5
  • 4 total stops
  • 75h 35m total
  • London to Sylhet
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14/5
  • 14/5
  • 3 total stops
  • 24h 15m total
  • London to Sylhet
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Highest demand for flights based on searches. 10% potential increase in price (£88 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£27 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from London (LON) to Sylhet Osmani Intl.
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Price to beat on a one-way flight from London (LON) to Sylhet Osmani Intl.
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Find flight deals from London to Sylhet

Cheapest flights from London to Sylhet
Explore the most affordable flight options available from London to Sylhet. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 February 2025.

Sat 19/405:30LGW - ZYL
2 stops46h 45mMultiple Airlines
Sat 17/516:25ZYL - LGW
2 stops28h 50mMultiple Airlines
Deal found 17/2£732
Wed 12/321:05LHR - ZYL
3 stops32h 45mMultiple Airlines
Sat 22/312:15ZYL - LHR
3 stops28h 50mMultiple Airlines
Deal found 17/2£733
Sun 9/318:15LHR - ZYL
Nonstop9h 35mBiman Bangladesh
Sun 23/310:00ZYL - LHR
Nonstop12h 05mBiman Bangladesh
Deal found 17/2£738
Sun 9/312:50STN - ZYL
2 stops35h 05mMultiple Airlines
Tue 18/320:05ZYL - STN
3 stops29h 15mMultiple Airlines
Deal found 18/2£752
Sun 6/415:25LCY - ZYL
2 stops34h 05mMultiple Airlines
Sun 13/412:50ZYL - LCY
2 stops32h 15mMultiple Airlines
Deal found 17/2£5,296

Find flights from London to Sylhet within your budget

Customise your flight search to find flights from London to Sylhet that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 February 2025.

Fly from

London

Fly to

Sylhet

Route

Depart

Return

Price

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Sat 19/4

05:30-09:15

2 stops46h 45m

Sylhet Osmani Intl

Sat 17/5

16:25-16:15

2 stops28h 50m

£732

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Wed 12/3

21:05-11:50

3 stops32h 45m

Sylhet Osmani Intl

Sat 22/3

12:15-11:05

3 stops28h 50m

£733

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sun 9/3

18:15-09:50

Nonstop9h 35m

Sylhet Osmani Intl

Sun 23/3

10:00-16:05

Nonstop12h 05m

£738

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sun 9/3

12:50-05:55

2 stops35h 05m

Sylhet Osmani Intl

Tue 18/3

20:05-19:20

3 stops29h 15m

£752

LondonSylhet

LCY - ZYL

LCYZYL

London City

Sun 6/4

15:25-06:30

2 stops34h 05m

Sylhet Osmani Intl

Sun 13/4

12:50-16:05

2 stops32h 15m

£5,296

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Wed 14/5

14:30-19:45

3 stops24h 15m

£356

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sun 9/3

10:40-05:55

2 stops37h 15m

£370

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Mon 3/3

08:45-19:05

2 stops28h 20m

£379

LondonSylhet

LCY - ZYL

LCYZYL

London City

Sun 9/3

16:05-19:45

3 stops21h 40m

£414

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sun 9/3

18:15-09:50

Nonstop9h 35m

£531

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Best time to book a flight from London to Sylhet

Have a flexible travel schedule? Discover the best time to fly to Sylhet from London 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.

Travel insights for flights from London to Sylhet

Get recent, data-driven insights about flights from London to Sylhet including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London to Sylhet?

Currently, September is the cheapest month in which you can book a flight from London to Sylhet (average of £842). Flying from London to Sylhet in July is currently the most expensive (average of £1,376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to ZYL?

Find hourly flight availability from London to Sylhet. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 February 2025.

It’s optimal to fly from London to Sylhet in the morning. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at midday.

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).

Related info for your journey

Find useful and relevant information for your journey from London to Sylhet. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Sylhet from London, you will be flying to Osmani Intl, which is the city’s only airport. Sylhet Osmani Intl (ZYL) is located 4.3 mi from the center of Sylhet. There are 0 flights from London to Osmani Intl per day from 1 airline.

  • What is the cheapest airline to fly from London to Sylhet round-trip?

    Our cheapest airline available from London to Sylhet is Biman Bangladesh. Our recent data shows that you can find tickets from as low as £738 on this airline. Biman Bangladesh is 19% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from London to Sylhet?

    When deciding which route to take from London to Sylhet consider London Heathrow - Sylhet Osmani Intl, London Gatwick - Sylhet Osmani Intl or London Stansted - Sylhet Osmani Intl as they are the most popular.

  • What are the cheapest flights from London to Sylhet?

    On average you can expect to pay £1,226 for a flight from London to Sylhet. The cheapest flight overall is £482 while the most popular route, (London Heathrow - Sylhet Osmani Intl) is currently priced at £738.

  • Can I find deals for flights from London to Sylhet that include hotel bookings?

    Yes. In addition to deals on London to Sylhet flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Sylhet?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Sylhet.

  • Can I find deals for business class flights from London to Sylhet?

    Yes. Cheapflights offers flight deals from London to Sylhet by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Sylhet?

    Currently, September is the cheapest month in which you can book a flight from London to Sylhet (average of £842). Flying from London to Sylhet in July is currently the most expensive (average of £1,376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Fly from London to Sylhet on these airlines

Choose from the following airlines for your flight from London to Sylhet. Flights are based on user searches made on Cheapflights and were last updated on 18 February 2025.
Biman Bangladesh flights from London to Sylhet Osmani Intl

Top airline flying from London to Sylhet

Discover the top airline that operate flights from London to Sylhet. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest£665Average£883FlexibilityNo cancel feeOn-time45%
Search Biman Bangladesh flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Sylhet?

When you search for this flight from London to Sylhet, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sylhet from London.

Can Cheapflights find flights from London to Sylhet with no change fees?

Certainly. Search results for flights to Sylhet from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on London to Sylhet flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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