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Cheap flights from the United Kingdom to Sylhet from £305

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ZYL
19 Aug — 26 Aug1
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 20 July 2026.

Tue 8/921:00
MAN
-
ZYL
Nonstop9h 50m
Biman Bangladesh
Sat 10/1012:50
ZYL
-
MAN
Nonstop11h 25m
Biman Bangladesh
Deal found 19/7£688
Sat 22/821:00
MAN
-
ZYL
Nonstop9h 50m
Biman Bangladesh
Tue 29/912:50
ZYL
-
MAN
Nonstop11h 25m
Biman Bangladesh
Deal found 19/7£695
Tue 25/821:00
MAN
-
ZYL
Nonstop9h 50m
Biman Bangladesh
Tue 22/912:50
ZYL
-
MAN
Nonstop11h 25m
Biman Bangladesh
Deal found 20/7£696
Tue 29/921:00
MAN
-
ZYL
Nonstop9h 50m
Biman Bangladesh
Tue 15/1212:10
ZYL
-
MAN
Nonstop11h 50m
Biman Bangladesh
Deal found 16/7£698
Sat 5/921:00
MAN
-
ZYL
Nonstop9h 50m
Biman Bangladesh
Sat 19/912:50
ZYL
-
MAN
Nonstop11h 25m
Biman Bangladesh
Deal found 17/7£699
Sun 1/1113:45
MAN
-
ZYL
2 stops25h 25m
Multiple Airlines
Mon 23/1121:40
ZYL
-
MAN
2 stops20h 15m
Multiple Airlines
Deal found 17/7£727
Sat 22/813:55
MAN
-
ZYL
3 stops25h 05m
Multiple Airlines
Tue 22/908:20
ZYL
-
MAN
3 stops45h 50m
Multiple Airlines
Deal found 16/7£740
Tue 1/916:45
STN
-
ZYL
3 stops33h 50m
Multiple Airlines
Fri 25/918:50
ZYL
-
STN
2 stops32h 05m
Multiple Airlines
Deal found 18/7£743
Tue 10/1114:00
BHX
-
ZYL
2 stops25h 10m
Multiple Airlines
Mon 18/119:50
ZYL
-
BHX
2 stops22h 10m
Multiple Airlines
Deal found 16/7£745
Tue 21/706:30
MAN
-
ZYL
3 stops33h 25m
Multiple Airlines
Sat 8/822:10
ZYL
-
MAN
3 stops41h 30m
Multiple Airlines
Deal found 16/7£746
Wed 4/1109:30
LHR
-
ZYL
2 stops30h 10m
Multiple Airlines
Wed 2/1220:50
ZYL
-
LHR
2 stops39h 45m
Multiple Airlines
Deal found 17/7£748
Tue 8/921:00
MAN
-
ZYL
Nonstop9h 50m
Biman Bangladesh
Tue 29/912:50
ZYL
-
MAN
Nonstop11h 25m
Biman Bangladesh
Deal found 16/7£749

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 20 July 2026.

Round-trip from

£688

One-way from

£305

Popular in

December

Cheapest in

September

Average price

£1,057

Good round-trip deal

£794 or less

Good one-way deal

£476 or less
Biman Bangladesh
  • Biman Bangladesh
  • 8/9-10/10
  • Nonstop
  • 21h 15m total
  • United Kingdom to Sylhet
Search Deals
9/11
  • 9/11
  • 2 total stops
  • 19h 30m total
  • United Kingdom to Sylhet
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 20 July 2026.
Use the filters below to find and compare flights from the United Kingdom to Sylhet that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ManchesterSylhet

MAN - ZYL

MANZYL

Manchester

Tue 8/9

21:00-11:50

Nonstop9h 50m

Sylhet Osmani Intl

Sat 10/10

12:50-19:15

Nonstop11h 25m

£688

BirminghamSylhet

BHX - ZYL

BHXZYL

Birmingham

Tue 10/11

14:00-21:10

2 stops25h 10m

Sylhet Osmani Intl

Mon 18/1

19:50-12:00

2 stops22h 10m

£745

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Thu 10/9

09:00-17:50

2 stops27h 50m

Sylhet Osmani Intl

Wed 2/12

15:50-05:55

2 stops20h 05m

£779

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Mon 14/9

09:00-14:45

2 stops24h 45m

Sylhet Osmani Intl

Wed 14/10

15:10-06:40

2 stops20h 30m

£779

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Mon 4/1

10:05-11:45

2 stops19h 40m

Sylhet Osmani Intl

Mon 8/2

20:20-16:30

2 stops26h 10m

£783

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Sun 6/9

14:55-20:00

3 stops24h 05m

Sylhet Osmani Intl

Sun 27/9

15:10-00:20

3 stops38h 10m

£786

BirminghamSylhet

BHX - ZYL

BHXZYL

Birmingham

Tue 18/8

18:20-20:55

3 stops21h 35m

Sylhet Osmani Intl

Tue 22/9

15:10-17:35

3 stops31h 25m

£800

ManchesterSylhet

MAN - ZYL

MANZYL

Manchester

Tue 25/8

21:00-11:50

Nonstop9h 50m

Sylhet Osmani Intl

Tue 22/9

08:20-14:15

3 stops58h 55m

£812

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sun 30/8

14:40-07:35

3 stops35h 55m

Sylhet Osmani Intl

Sun 1/11

14:50-16:10

3 stops31h 20m

£812

ManchesterSylhet

MAN - ZYL

MANZYL

Manchester

Tue 24/11

20:00-11:50

Nonstop9h 50m

Sylhet Osmani Intl

Tue 15/12

12:10-18:00

Nonstop11h 50m

£824

Flights are sorted by cheapest return flights first.

Deals found on 19/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £711). Flying from United Kingdom to Sylhet in December is currently the most expensive (average of £1,356). 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 20 July 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 30% of weekly flights between United Kingdom and Sylhet have experienced delays in the past year, with the average delay time being 178 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?

Saturday 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 30% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Sylhet?

The best time to book flights from United Kingdom to Sylhet is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 20 July 2026.
Check out reviews from past customers who have flown with Qatar Airways and 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.
Qatar Airways
7.3
Good
3,747 reviews
Check prices

Entertainment

7.3

Crew

7.9

Boarding

7.5

Comfort

7.3

Food

7.3

Overall

7.3

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

ORD - DOH

I would never fly qatar again . followings are the reason. 1: they sell all seats trying to make more money even the seat is not confortable. 2 laser thin seats no cusion on economy seats for 13 hrs long journey. 3 seat sizes are small to fit american body and not enough room to scratch legs. Specially middle seats 4 doha airport sucks. Mile long walk to change plane trying to force customers to pass by their duty free stores. 5 not enought passenger waiting seats by gate c 81 c82..... 6 no gate for planes going to ahmedabad and other other indian cities. Buses with only 6 seats tranfering paasenger to plane parked on tarmac. 7 once get off the bus passengers are stepping up all steps to reach planes entrance door. Problem for passengers have a knee problem n slighly poor health condition. 8 cost of priority seat reservation too high compared to air india. 9 they advertise their religion on entertainment platform. 10 map navigation software shows on Arabic language about 3/4 of time and 1/ 4 of selected language after languages selection of software. Once languages sected display shoud show on selected lunguage not the arabic lunguage 75 % of time. 11. Some seats are blocked for selection all the time and never open for customer option. Eg. 44a 44b And all a b c seats from raw 45 to 48. I can go on and on.... I am going back to chicago i am still worried my seats from ahmdavad to chicago. I am worried i dont fit comfortabley on laser thin tight seating arrangments. God bless me.
Qatar Airways
7.3
Good
3,747 reviews
Qatar Airways
7.3
Good
3,747 reviews
Check prices

Entertainment

7.3

Crew

7.9

Boarding

7.5

Comfort

7.3

Food

7.3

Overall

7.3

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

ORD - DOH

I would never fly qatar again . followings are the reason. 1: they sell all seats trying to make more money even the seat is not confortable. 2 laser thin seats no cusion on economy seats for 13 hrs long journey. 3 seat sizes are small to fit american body and not enough room to scratch legs. Specially middle seats 4 doha airport sucks. Mile long walk to change plane trying to force customers to pass by their duty free stores. 5 not enought passenger waiting seats by gate c 81 c82..... 6 no gate for planes going to ahmedabad and other other indian cities. Buses with only 6 seats tranfering paasenger to plane parked on tarmac. 7 once get off the bus passengers are stepping up all steps to reach planes entrance door. Problem for passengers have a knee problem n slighly poor health condition. 8 cost of priority seat reservation too high compared to air india. 9 they advertise their religion on entertainment platform. 10 map navigation software shows on Arabic language about 3/4 of time and 1/ 4 of selected language after languages selection of software. Once languages sected display shoud show on selected lunguage not the arabic lunguage 75 % of time. 11. Some seats are blocked for selection all the time and never open for customer option. Eg. 44a 44b And all a b c seats from raw 45 to 48. I can go on and on.... I am going back to chicago i am still worried my seats from ahmdavad to chicago. I am worried i dont fit comfortabley on laser thin tight seating arrangments. God bless me.
Biman Bangladesh
7.1
Good
29 reviews
Qatar Airways
7.3
Good
3,747 reviews
Check prices

Entertainment

7.3

Crew

7.9

Boarding

7.5

Comfort

7.3

Food

7.3

Overall

7.3

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

ORD - DOH

I would never fly qatar again . followings are the reason. 1: they sell all seats trying to make more money even the seat is not confortable. 2 laser thin seats no cusion on economy seats for 13 hrs long journey. 3 seat sizes are small to fit american body and not enough room to scratch legs. Specially middle seats 4 doha airport sucks. Mile long walk to change plane trying to force customers to pass by their duty free stores. 5 not enought passenger waiting seats by gate c 81 c82..... 6 no gate for planes going to ahmedabad and other other indian cities. Buses with only 6 seats tranfering paasenger to plane parked on tarmac. 7 once get off the bus passengers are stepping up all steps to reach planes entrance door. Problem for passengers have a knee problem n slighly poor health condition. 8 cost of priority seat reservation too high compared to air india. 9 they advertise their religion on entertainment platform. 10 map navigation software shows on Arabic language about 3/4 of time and 1/ 4 of selected language after languages selection of software. Once languages sected display shoud show on selected lunguage not the arabic lunguage 75 % of time. 11. Some seats are blocked for selection all the time and never open for customer option. Eg. 44a 44b And all a b c seats from raw 45 to 48. I can go on and on.... I am going back to chicago i am still worried my seats from ahmdavad to chicago. I am worried i dont fit comfortabley on laser thin tight seating arrangments. God bless me.

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.

  • How long is the flight from United Kingdom to Sylhet?

    A quick flight from United Kingdom to Sylhet can take about 9h 50m. Biman Bangladesh provides one of the quickest options available for as low as £688. Airlines will cover a distance of 5011 mi. Most flights are nonstop.

  • 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 £1,151, our data shows the cheapest flight currently is £576. When looking at the most popular route, (London Heathrow - Sylhet Osmani Intl), you can expect to pay £640 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 £711). Flying from United Kingdom to Sylhet in December is currently the most expensive (average of £1,356). 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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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 20 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest£651Average£899FlexibilityNo cancel feeOn-time45%
Search Biman Bangladesh flights

Fly with Cheapflights

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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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