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Cheap flights from Sylhet to London Heathrow Airport from £307

ZYL — LHR
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sylhet to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sylhet to Heathrow

Thu 12/1108:15 -
1 stop16h 10m
Fri 20/1108:25 -
1 stop17h 05m
Deal found 10/11£653
Fri 25/1210:00 -
2 stops32h 05m
Fri 1/108:40 -
2 stops45h 05m
Deal found 10/11£735
Sun 8/1122:25 -
2 stops38h 15m
Sun 15/1119:20 -
2 stops38h 35m
Deal found 7/11£784
Thu 19/1110:55 -
2 stops25h 30m
Mon 30/1114:15 -
2 stops19h 40m
Deal found 7/11£793
Tue 10/1122:00 -
2 stops38h 40m
Thu 10/1213:55 -
2 stops39h 50m
Deal found 9/11£807
Thu 12/1122:00 -
2 stops38h 40m
Fri 20/1113:55 -
2 stops39h 50m
Deal found 10/11£818
Tue 22/1222:00 -
2 stops44h 05m
Tue 29/1213:55 -
2 stops37h 00m
Deal found 7/11£826
Wed 11/1121:05 -
2 stops22h 55m
Wed 18/1113:45 -
2 stops25h 50m
Deal found 7/11£832
Mon 21/1210:55 -
2 stops26h 25m
Mon 4/108:35 -
2 stops31h 00m
Deal found 6/11£842
Thu 19/1108:15 -
1 stop16h 10m
Mon 30/1120:05 -
1 stop29h 25m
Deal found 7/11£863

Find flight deals from Sylhet to Heathrow

Round-trip from

£735

One-way from

£307

Popular in

January

Cheapest in

March

Average price

£1,119

Good round-trip deal

£984 or less

Good one-way deal

£512 or less
25/12-1/1
  • 25/12-1/1
  • 4 total stops
  • 77h 10m total
  • Sylhet to London
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12/12-31/12
  • 12/12-31/12
  • 2 total stops
  • 29h 35m total
  • Sylhet to London
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Highest demand for flights based on searches. 23% potential increase in price (£252 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£51 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Sylhet Osmani Intl to London Heathrow.
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Price to beat on a one-way flight from Sylhet Osmani Intl to London Heathrow.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sylhet to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Sun 29/11

16:20-17:50

2 stops31h 30m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£310

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Sat 13/2

12:10-12:05

2 stops29h 55m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£360
Fastest return journey

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Mon 16/11

16:20-06:40

2 stops20h 20m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£363

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Wed 23/12

12:50-08:05

3 stops25h 15m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£372

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Sun 31/1

22:10-06:35

2 stops38h 25m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£374

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Sat 21/11

16:20-12:15

2 stops25h 55m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£428

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Sat 21/11

08:15-05:55

1 stop27h 40m

London Heathrow

Wed 31/12

00:00-05:00

Nonstop0h 00m

£440

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Sun 2/5

22:10-12:45

2 stops43h 35m

London Heathrow

Sun 23/5

21:45-08:40

2 stops29h 55m

£761

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Mon 21/12

10:55-07:20

2 stops26h 25m

London Heathrow

Mon 4/1

08:35-21:35

2 stops31h 00m

£842

SylhetLondon

ZYL Sylhet Osmani Intl - LHR London Heathrow

ZYLLHR

Sylhet Osmani Intl

Thu 25/2

08:15-18:25

1 stop16h 10m

London Heathrow

Fri 12/3

08:25-07:30

1 stop17h 05m

£863

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Sylhet to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sylhet with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Sylhet to London Heathrow Airport

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

When flying from Sylhet to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Sylhet to London Heathrow Airport?

Airfare is below average for this route at the moment.

Sylhet to London Heathrow Airport flights typically cost between £1,052 and £1,126 in December.
The cheapest return price found within the last 5 days was £735 on Multiple Airlines (25 Dec–1 Jan).

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with Biman Bangladesh from Sylhet to London Heathrow Airport 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
6.6
Okay
32 reviews
Check prices

Boarding

6.8

Crew

7.3

Food

6.7

Comfort

6.4

Entertainment

6.1

Overall

6.6
Biman Bangladesh
6.6
Okay
32 reviews
Biman Bangladesh
6.6
Okay
32 reviews
Check prices

Boarding

6.8

Crew

7.3

Food

6.7

Comfort

6.4

Entertainment

6.1

Overall

6.6

Related info for your journey

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

    Sylhet Osmani Intl (ZYL) is the airport you will fly out of if you book a flight from Sylhet to London Heathrow. You should not have trouble finding flights to London Heathrow from Osmani Intl; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Sylhet airport to London Heathrow. It is only a 4.3 mi journey to Osmani Intl (ZYL) from Sylhet’s city center.

  • How long is the flight from Sylhet to London Heathrow Airport?

    A quick flight from Sylhet to London Heathrow Airport can take about 16h 10m. Oman Air provides one of the quickest options available for as low as £863. The distance between Sylhet and London Heathrow Airport is about 4979 mi.

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

    Flying on Biman Bangladesh is currently your cheapest option to London Heathrow Airport, with prices starting at £833. Biman Bangladesh is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

See more FAQs

Travelling to a place near London Heathrow Airport?

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Alternative routes for Sylhet to Heathrow

Dhaka to Heathrow flights
Dhaka to Gatwick flights
Dhaka to Stansted flights
Chittagong to Heathrow flights
Dhaka to London City flights

Top airline flying from Sylhet to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest£833Average£997FlexibilityNo cancel feeOn-time45%
Search Biman Bangladesh flights

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Need flexible booking options for your flight to Heathrow from Sylhet? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Sylhet to Heathrow 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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