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Cheap flights from the United Kingdom to Sylhet from £291

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ZYL
16 Jan — 23 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Sylhet

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Sylhet
Explore the most affordable flight options available from United Kingdom to Sylhet. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 December 2025.

Sun 28/1215:30LHR - ZYL
2 stops24h 15mMultiple Airlines
Sun 5/412:15ZYL - LHR
3 stops35h 05mMultiple Airlines
Deal found 15/12£863
Thu 25/1218:55LHR - ZYL
2 stops20h 50mMultiple Airlines
Sun 15/212:15ZYL - LHR
2 stops24h 10mMultiple Airlines
Deal found 15/12£864
Thu 25/1215:30LHR - ZYL
2 stops24h 15mMultiple Airlines
Thu 22/110:55ZYL - LHR
2 stops25h 40mMultiple Airlines
Deal found 15/12£875
Thu 25/1208:40LGW - ZYL
2 stops31h 05mMultiple Airlines
Sun 15/222:10ZYL - LGW
2 stops37h 45mMultiple Airlines
Deal found 15/12£910
Thu 25/1210:45STN - ZYL
3 stops46h 45mMultiple Airlines
Thu 15/115:55ZYL - STN
3 stops30h 05mMultiple Airlines
Deal found 16/12£912
Sun 28/1210:45STN - ZYL
3 stops27h 15mMultiple Airlines
Sun 5/413:50ZYL - STN
3 stops24h 35mMultiple Airlines
Deal found 15/12£924
Sun 28/1214:05LGW - ZYL
2 stops25h 40mMultiple Airlines
Sun 5/416:25ZYL - LGW
2 stops26h 00mMultiple Airlines
Deal found 15/12£939
Thu 25/1210:45STN - ZYL
3 stops26h 45mMultiple Airlines
Sun 15/214:50ZYL - STN
3 stops27h 15mMultiple Airlines
Deal found 15/12£954
Thu 25/1214:15LHR - ZYL
2 stops25h 30mMultiple Airlines
Thu 15/122:10ZYL - LHR
2 stops30h 30mMultiple Airlines
Deal found 16/12£975
Tue 23/1218:55LHR - ZYL
2 stops20h 50mMultiple Airlines
Mon 19/112:50ZYL - LHR
2 stops23h 35mMultiple Airlines
Deal found 16/12£980
Sat 20/1208:40LHR - ZYL
3 stops30h 30mMultiple Airlines
Sat 27/1210:55ZYL - LHR
3 stops30h 10mMultiple Airlines
Deal found 15/12£994
Fri 26/1218:55LHR - ZYL
2 stops39h 30mMultiple Airlines
Thu 15/122:10ZYL - LHR
2 stops29h 45mMultiple Airlines
Deal found 16/12£1,002

Find flight deals from United Kingdom to Sylhet

Keep the following information in mind while searching for United Kingdom to Sylhet flight deals. Data was last updated 17 December 2025.

Round-trip from

£708

One-way from

£291

Popular in

December

Cheapest in

September

Average price

£1,360

Good round-trip deal

£820 or less

Good one-way deal

£564 or less
12/1-26/3
  • 12/1-26/3
  • 4 total stops
  • 56h 15m total
  • United Kingdom to Sylhet
Search Deals
10/3
  • 10/3
  • 2 total stops
  • 38h 25m total
  • United Kingdom to Sylhet
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Sylhet Osmani Intl.
Search Deals
Price to beat on a one-way flight from United Kingdom to Sylhet Osmani Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 17 December 2025.
Use the filters below to find and compare flights from the United Kingdom to Sylhet that are best for you.

Fly from

United Kingdom

Fly to

Sylhet

Route

Depart

Return

Price

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sat 21/3

08:40-19:20

3 stops28h 40m

Sylhet Osmani Intl

Fri 17/4

11:50-15:25

3 stops32h 35m

£709

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Wed 18/3

14:55-15:30

2 stops18h 35m

Sylhet Osmani Intl

Wed 29/4

12:15-18:00

2 stops34h 45m

£715

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Wed 11/3

13:50-21:45

2 stops25h 55m

Sylhet Osmani Intl

Wed 15/4

07:30-06:25

2 stops27h 55m

£715

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Sun 22/3

06:50-15:30

3 stops26h 40m

Sylhet Osmani Intl

Sun 19/4

12:15-18:35

3 stops35h 20m

£716

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Wed 25/3

20:00-12:30

3 stops34h 30m

Sylhet Osmani Intl

Wed 22/4

08:20-21:40

3 stops42h 20m

£722

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sun 25/1

14:15-16:30

2 stops20h 15m

Sylhet Osmani Intl

Thu 5/2

22:10-07:30

2 stops39h 20m

£728

ManchesterSylhet

MAN - ZYL

MANZYL

Manchester

Sun 4/1

11:40-21:45

2 stops28h 05m

Sylhet Osmani Intl

Sat 31/1

22:10-09:30

2 stops41h 20m

£732

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Fri 20/3

06:10-15:30

3 stops27h 20m

Sylhet Osmani Intl

Fri 17/4

07:30-21:10

3 stops42h 40m

£738

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sat 21/3

08:05-09:40

2 stops19h 35m

Sylhet Osmani Intl

Sat 18/4

16:25-17:40

3 stops30h 15m

£740

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Mon 2/2

14:15-16:40

2 stops20h 25m

Sylhet Osmani Intl

Sun 15/2

08:35-14:15

2 stops35h 40m

£743

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 52 results
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Best time to book a flight from United Kingdom to Sylhet

Have a flexible travel schedule? Discover the best time to fly to Sylhet from United Kingdom 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 from the United Kingdom to Sylhet

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

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Sylhet (average of £554). Flying from United Kingdom to Sylhet in July is currently the most expensive (average of £781). 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 GB to ZYL?

Find hourly flight availability from United Kingdom 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 17 December 2025.

It’s optimal to fly from United Kingdom to Sylhet at midday. By choosing this option you can save up to 49% on the cost of your flight, compared to a flight in the afternoon.

How often are flights from the United Kingdom to Sylhet delayed?

About 34% of weekly flights between United Kingdom and Sylhet have experienced delays in the past year, with the average delay time being 165 minutes.

What is the most punctual flight time for the United Kingdom to Sylhet flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Sylhet flights?

Over the past year, Biman Bangladesh have had the lowest number of delays on this route, with just 34% of flights being delayed.

Reviews of airlines servicing Sylhet

Get insights into the airlines that provide service to Sylhet. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sylhet. Reviews last updated 17 December 2025.
Check out reviews from past customers who have flown with Biman Bangladesh from the United Kingdom to Sylhet to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Biman Bangladesh
6.7
Okay
23 reviews
Check prices

Entertainment

6.0

Comfort

6.3

Food

6.8

Overall

6.7

Boarding

7.0

Crew

7.5
Biman Bangladesh
6.7
Okay
23 reviews
Biman Bangladesh
6.7
Okay
23 reviews
Check prices

Entertainment

6.0

Comfort

6.3

Food

6.8

Overall

6.7

Boarding

7.0

Crew

7.5

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Most people fly into Sylhet Osmani Intl (ZYL) if they book a flight to Sylhet from United Kingdom. Osmani Intl is conveniently located just 4.3 mi from Sylhet’s city center.

  • What are the most popular routes from United Kingdom to Sylhet?

    The most popular route from United Kingdom to Sylhet is London Heathrow - Sylhet Osmani Intl. You may also consider London Gatwick - Sylhet Osmani Intl or London Stansted - Sylhet Osmani Intl.

  • What are the cheapest flights from United Kingdom to Sylhet?

    While on average a flight from United Kingdom to Sylhet is generally £1,202, our data shows the cheapest flight currently is £517. When looking at the most popular route, (London Heathrow - Sylhet Osmani Intl), you can expect to pay £664 for that flight.

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

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

  • How can I find direct flights from United Kingdom to Sylhet?

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Sylhet?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to Sylhet (average of £554). Flying from United Kingdom to Sylhet in July is currently the most expensive (average of £781). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from United Kingdom to Sylhet

Discover the top airline that operate flights from United Kingdom 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 17 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest£650Average£875FlexibilityNo 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 United Kingdom to Sylhet?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to Sylhet. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Sylhet from United Kingdom by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from United Kingdom to Sylhet with no change fees.

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

Not ready to book yet? You can track prices for flights from United Kingdom to Sylhet on Cheapflights with our Price Alert feature and get notified when better prices are available.

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