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Cheap flights from the United Kingdom to Sylhet from £294

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ZYL
10 Mar — 17 Mar1
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 8 February 2026.

Thu 26/210:20
LGW
-
ZYL
3 stops24h 20m
Multiple Airlines
Tue 10/320:10
ZYL
-
LGW
2 stops21h 30m
Multiple Airlines
Deal found 8/2£709
Mon 1/606:30
LHR
-
ZYL
2 stops28h 30m
Multiple Airlines
Sun 21/620:10
ZYL
-
LHR
2 stops29h 50m
Multiple Airlines
Deal found 5/2£710
Mon 9/317:05
LGW
-
ZYL
2 stops36h 45m
Multiple Airlines
Mon 16/320:25
ZYL
-
LGW
2 stops25h 45m
Multiple Airlines
Deal found 7/2£712
Fri 20/205:55
LGW
-
ZYL
2 stops23h 55m
Multiple Airlines
Sun 8/322:10
ZYL
-
LGW
2 stops41h 10m
Multiple Airlines
Deal found 8/2£713
Sun 1/318:15
LHR
-
ZYL
Nonstop9h 40m
Biman Bangladesh
Wed 18/310:25
ZYL
-
LHR
Nonstop11h 40m
Biman Bangladesh
Deal found 6/2£715
Sun 12/408:10
LGW
-
ZYL
2 stops30h 35m
Multiple Airlines
Thu 7/516:25
ZYL
-
LGW
2 stops26h 00m
Multiple Airlines
Deal found 6/2£717
Wed 4/318:15
LHR
-
ZYL
Nonstop9h 40m
Biman Bangladesh
Wed 18/309:55
ZYL
-
LHR
1 stop36h 10m
Biman Bangladesh
Deal found 5/2£717
Sat 5/918:20
LHR
-
ZYL
Nonstop9h 45m
Biman Bangladesh
Sat 19/909:35
ZYL
-
LHR
Nonstop11h 20m
Biman Bangladesh
Deal found 7/2£718
Sat 9/509:00
LGW
-
ZYL
2 stops21h 50m
Multiple Airlines
Wed 10/608:05
ZYL
-
LGW
2 stops27h 35m
Multiple Airlines
Deal found 6/2£719
Sat 12/918:20
LHR
-
ZYL
Nonstop9h 45m
Biman Bangladesh
Wed 30/909:35
ZYL
-
LHR
Nonstop11h 20m
Biman Bangladesh
Deal found 5/2£719
Wed 25/206:25
LGW
-
ZYL
2 stops33h 35m
Multiple Airlines
Mon 23/315:55
ZYL
-
LGW
2 stops30h 15m
Multiple Airlines
Deal found 6/2£720
Sun 8/306:35
LHR
-
ZYL
2 stops23h 15m
Multiple Airlines
Sun 15/310:55
ZYL
-
LHR
2 stops35h 15m
Multiple Airlines
Deal found 6/2£721

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 8 February 2026.

Round-trip from

£710

One-way from

£294

Popular in

December

Cheapest in

September

Average price

£792

Good round-trip deal

£780 or less

Good one-way deal

£493 or less
1/6-21/6
  • 1/6-21/6
  • 4 total stops
  • 58h 20m total
  • United Kingdom to Sylhet
Search Deals
18/2
  • 18/2
  • 3 total stops
  • 23h 05m total
  • United Kingdom to Sylhet
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 8 February 2026.
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

LGW - ZYL

LGWZYL

London Gatwick

Fri 20/2

05:55-11:50

2 stops23h 55m

Sylhet Osmani Intl

Sun 8/3

22:10-09:20

2 stops41h 10m

£713

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Sun 12/4

08:10-19:45

2 stops30h 35m

Sylhet Osmani Intl

Thu 7/5

16:25-13:25

2 stops26h 00m

£717

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Sat 9/5

09:00-11:50

2 stops21h 50m

Sylhet Osmani Intl

Wed 10/6

08:05-06:40

2 stops27h 35m

£719

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Thu 9/4

08:10-17:30

2 stops28h 20m

Sylhet Osmani Intl

Sun 3/5

20:10-13:25

2 stops22h 15m

£722

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Mon 1/6

10:50-19:45

2 stops27h 55m

Sylhet Osmani Intl

Tue 30/6

20:10-22:25

2 stops31h 15m

£723

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Sat 9/5

08:25-11:50

2 stops22h 25m

Sylhet Osmani Intl

Wed 10/6

08:05-22:10

2 stops19h 05m

£724

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Thu 19/2

12:45-19:30

3 stops24h 45m

Sylhet Osmani Intl

Tue 3/3

20:10-14:35

2 stops24h 25m

£725

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Wed 20/5

09:00-11:50

2 stops21h 50m

Sylhet Osmani Intl

Sat 20/6

16:25-13:25

2 stops26h 00m

£726

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Thu 26/2

10:20-19:20

3 stops27h 00m

Sylhet Osmani Intl

Tue 10/3

20:10-17:20

3 stops27h 10m

£731

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Wed 4/3

10:15-15:30

2 stops23h 15m

Sylhet Osmani Intl

Wed 18/3

09:55-16:10

2 stops36h 15m

£740

Flights are sorted by cheapest return flights first.

Deals found on 5/2

Showing 1-10 of 60 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, September is the cheapest month in which you can book a flight from United Kingdom to Sylhet (average of £619). Flying from United Kingdom to Sylhet in December is currently the most expensive (average of £875). 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 8 February 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Sylhet as you normally would.

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 162 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 in the morning 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 8 February 2026.
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
24 reviews
Check prices

Entertainment

6.0

Comfort

6.3

Crew

7.5

Overall

6.7

Food

6.8

Boarding

7.0
Biman Bangladesh
6.7
Okay
24 reviews
Biman Bangladesh
6.7
Okay
24 reviews
Check prices

Entertainment

6.0

Comfort

6.3

Crew

7.5

Overall

6.7

Food

6.8

Boarding

7.0

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 £1,045, our data shows the cheapest flight currently is £427. When looking at the most popular route, (London Heathrow - Sylhet Osmani Intl), you can expect to pay £638 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, September is the cheapest month in which you can book a flight from United Kingdom to Sylhet (average of £619). Flying from United Kingdom to Sylhet in December is currently the most expensive (average of £875). 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 8 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest£662Average£891FlexibilityNo 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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