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Cheap flights from the United Kingdom to Sylhet from £253

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ZYL
4 Jan — 11 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 5 December 2025.

Tue 9/1220:10STN - ZYL
3 stops41h 10mMultiple Airlines
Tue 23/1220:10ZYL - STN
2 stops21h 00mMultiple Airlines
Deal found 4/12£717
Tue 9/1220:10STN - ZYL
3 stops41h 10mMultiple Airlines
Tue 16/1220:10ZYL - STN
2 stops20h 25mMultiple Airlines
Deal found 4/12£735
Sun 7/1206:00STN - ZYL
3 stops31h 20mMultiple Airlines
Wed 28/113:00ZYL - STN
3 stops28h 45mMultiple Airlines
Deal found 3/12£739
Wed 31/1212:45STN - ZYL
3 stops25h 15mMultiple Airlines
Sun 25/114:50ZYL - STN
3 stops29h 45mMultiple Airlines
Deal found 3/12£743
Wed 3/1205:55STN - ZYL
2 stops20h 55mMultiple Airlines
Wed 10/1212:50ZYL - STN
3 stops28h 55mMultiple Airlines
Deal found 1/12£758
Tue 9/1220:30LGW - ZYL
3 stops40h 50mMultiple Airlines
Tue 16/1215:55ZYL - LGW
3 stops25h 30mMultiple Airlines
Deal found 4/12£765
Wed 3/1205:55STN - ZYL
2 stops20h 55mMultiple Airlines
Wed 17/1217:10ZYL - STN
3 stops24h 35mMultiple Airlines
Deal found 2/12£776
Thu 25/1212:45STN - ZYL
3 stops27h 00mMultiple Airlines
Thu 15/115:55ZYL - STN
3 stops28h 40mMultiple Airlines
Deal found 2/12£797
Sun 7/1206:00STN - ZYL
3 stops28h 40mMultiple Airlines
Sun 11/113:00ZYL - STN
3 stops33h 10mMultiple Airlines
Deal found 2/12£803
Sun 7/1206:00STN - ZYL
3 stops31h 20mMultiple Airlines
Sun 21/1217:10ZYL - STN
3 stops24h 35mMultiple Airlines
Deal found 2/12£806
Thu 11/1206:20STN - ZYL
2 stops20h 35mMultiple Airlines
Fri 16/114:10ZYL - STN
3 stops27h 35mMultiple Airlines
Deal found 3/12£809
Fri 5/1206:40LHR - ZYL
3 stops33h 05mMultiple Airlines
Fri 12/1209:55ZYL - LHR
3 stops31h 10mMultiple Airlines
Deal found 4/12£833

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 5 December 2025.

Round-trip from

£710

One-way from

£253

Popular in

December

Cheapest in

September

Average price

£1,360

Good round-trip deal

£835 or less

Good one-way deal

£566 or less
12/1-9/2
  • 12/1-9/2
  • 4 total stops
  • 58h 05m total
  • United Kingdom to Sylhet
Search Deals
25/2
  • 25/2
  • 3 total stops
  • 37h 35m total
  • United Kingdom to Sylhet
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£130 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 5 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

Mon 12/1

09:30-11:50

3 stops44h 20m

Sylhet Osmani Intl

Mon 9/2

14:50-12:05

3 stops27h 15m

£722

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sun 4/1

06:25-08:45

3 stops44h 20m

Sylhet Osmani Intl

Sun 11/1

10:55-14:50

3 stops33h 55m

£723

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Mon 5/1

08:30-11:50

3 stops45h 20m

Sylhet Osmani Intl

Mon 9/2

20:25-16:10

3 stops25h 45m

£725

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Sun 4/1

06:25-19:20

3 stops30h 55m

Sylhet Osmani Intl

Sun 25/1

14:50-14:35

3 stops29h 45m

£728

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Sat 7/2

06:45-12:30

3 stops23h 45m

Sylhet Osmani Intl

Sat 28/2

10:55-12:35

3 stops31h 40m

£731

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Mon 5/1

10:00-19:20

2 stops27h 20m

Sylhet Osmani Intl

Sun 25/1

08:35-07:30

2 stops28h 55m

£736

LondonSylhet

LGW - ZYL

LGWZYL

London Gatwick

Mon 16/3

07:30-19:25

3 stops29h 55m

Sylhet Osmani Intl

Fri 15/5

11:25-06:40

3 stops24h 15m

£738

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Wed 31/12

12:45-20:00

3 stops25h 15m

Sylhet Osmani Intl

Sun 25/1

14:50-14:35

3 stops29h 45m

£743

LondonSylhet

LHR - ZYL

LHRZYL

London Heathrow

Mon 16/3

11:30-15:30

3 stops22h 00m

Sylhet Osmani Intl

Fri 15/5

11:25-14:45

3 stops32h 20m

£752

LondonSylhet

STN - ZYL

STNZYL

London Stansted

Mon 12/1

05:55-12:30

3 stops24h 35m

Sylhet Osmani Intl

Wed 28/1

17:10-11:45

3 stops24h 35m

£755

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 59 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, June is the cheapest month in which you can book a flight from United Kingdom to Sylhet (average of £507). Flying from United Kingdom to Sylhet in December is currently the most expensive (average of £769). 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 5 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 5 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

Food

6.8

Comfort

6.3

Entertainment

6.0

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

Food

6.8

Comfort

6.3

Entertainment

6.0

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 £1,187, our data shows the cheapest flight currently is £519. When looking at the most popular route, (London Heathrow - Sylhet Osmani Intl), you can expect to pay £687 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, June is the cheapest month in which you can book a flight from United Kingdom to Sylhet (average of £507). Flying from United Kingdom to Sylhet in December is currently the most expensive (average of £769). 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest£644Average£880FlexibilityNo 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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