Cheap Flights from Sylhet to London Heathrow

Compare Sylhet to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Sylhet to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Sylhet to London Heathrow? Find the lowest prices on one-way and return tickets right here.

London.R 7,087 per passenger.Departing Wed, 12 Nov.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Wed, 12 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 7,087, select.

London.R 7,412 per passenger.Departing Thu, 23 Oct.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Thu, 23 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 7,412, select.

London.R 8,156 per passenger.Departing Mon, 15 Dec.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Mon, 15 Dec, arriving in London Heathrow.Price includes taxes and charges.From R 8,156, select.

London.R 8,899 per passenger.Departing Wed, 14 Jan.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Wed, 14 Jan, arriving in London Heathrow.Price includes taxes and charges.From R 8,899, select.

London.R 9,093 per passenger.Departing Sun, 22 Mar.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Sun, 22 Mar, arriving in London Heathrow.Price includes taxes and charges.From R 9,093, select.

London.R 9,262 per passenger.Departing Sun, 8 Feb.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Sun, 8 Feb, arriving in London Heathrow.Price includes taxes and charges.From R 9,262, select.

London.R 10,194 per passenger.Departing Wed, 15 Oct.One-way flight with Biman Bangladesh Airlines.Outbound direct flight with Biman Bangladesh Airlines departs from Sylhet on Wed, 15 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 10,194, select.

London.R 10,697 per passenger.Departing Thu, 7 May.One-way flight with Biman Bangladesh Airlines.Outbound indirect flight with Biman Bangladesh Airlines, departs from Sylhet on Thu, 7 May, arriving in London Heathrow.Price includes taxes and charges.From R 10,697, select.

Find the cheapest month to fly from Sylhet to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sylhet to London Heathrow flights are currently cheapest in November.

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Direct flights from Sylhet to London Heathrow

Sylhet to London Heathrow: Alternative routes

Compare routes from Sylhet to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Sylhet to London: Flight information

The things to know before you go.

Cheapest flight found	R 7,087
Cheapest month to fly	November
Average flight time	11 hrs, 27 mins
Most popular airline	Biman Bangladesh Airlines
Average flights per week	5

Finding cheap flights from Sylhet to London Heathrow: Frequently asked questions

How much are return flights from Sylhet to London Heathrow?

The best price we found for a return flight from Sylhet to London Heathrow is R 18,316. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Sylhet to London Heathrow?

11 hours and 27 minutes is the average flight time from Sylhet to London Heathrow.

Which airlines fly direct from Sylhet to London Heathrow?

Biman Bangladesh Airlines flies direct from Sylhet to London Heathrow.

How many flights are there a week from Sylhet to London Heathrow?

As of September 2025, there are 5 flights per week flying from Sylhet to London Heathrow.

When is the cheapest time to fly from Sylhet to London Heathrow?

The cheapest month to fly from Sylhet to London Heathrow is usually October.

Which upcoming date is cheapest to fly from Sylhet Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sylhet Airport to London Heathrow Airport on Wednesday, 15 October 2025.

Can I get a direct flight from Sylhet Airport to London Heathrow Airport?

Yes – the average flight time is 11 hours and 27 minutes.

How can I find the best flight deal to London Heathrow?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Sylhet Airport to London Heathrow with?

Currently, Biman Bangladesh Airlines offers the cheapest flight tickets to London Heathrow.

Travelling from Osmani International Airport (ZYL) to London Heathrow Airport (LHR): what you need to know

The average duration of a direct flight from Osmani International Airport to London Heathrow Airport is 11 hours 10 minutes.
London is six hours behind Sylhet and is in the UTC+0 timezone.
Flights from ZYL to LHR start from 09:50 — the first with Biman Bangladesh Airlines. The last departure is at 10:15 with Biman Bangladesh Airlines. Overall, there are six weekly Osmani International Airport to London Heathrow Airport flights.
To ensure you get on your ZYL to LHR flight, leave plenty of time to navigate the airport and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.
Flying during a peak month such as July? Major public holidays and other popular seasons can mean longer queues and delays at security. Play it safe and get there up to four hours before an international flight and two hours before domestic departures.
Biman Bangladesh Airlines has direct flights from Osmani International Airport to London Heathrow Airport. Book with this popular carrier, then get ready to tick off the sights in London — and maybe even more of United Kingdom if you have time.
The airline that passengers book most often on this route is Biman Bangladesh Airlines.
The most punctual carrier that operates ZYL to LHR flights is Biman Bangladesh Airlines. Its services arrive as planned 69.7% of the time.

How to find the cheapest flights from Osmani International Airport (ZYL) to London Heathrow Airport (LHR)

Currently, R 7,087 is the cheapest price we've found for a one-way Osmani International Airport to London Heathrow Airport flight. The best price for a return ticket is R 18,316. Bear in mind that fares may change due to demand when booking.
Book six months before you want to fly. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from ZYL to LHR.
May is the cheapest month for flights from Osmani International Airport to London Heathrow Airport. If you're looking to fly during a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.
There's no need to check every day to find out if fares have gone down when you set up a Price Alert. We'll send you an update as soon as the price changes on cheap flights from ZYL to LHR.
Lock in the perfect flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Osmani International Airport to London Heathrow Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and journey duration.

Handy information about Osmani International Airport (ZYL)

To get to Osmani International Airport from central Sylhet, it'll take about 20 minutes if you're going by car. This depends on traffic though. It's approximately 10 kilometres from the airport to the city centre.
Booked an early flight from Osmani International Airport to London Heathrow Airport? Avoid the last-minute rush to the airport (and sneak in some extra precious sleep) by choosing one of these stays near ZYL:

Arriving at London Heathrow Airport (LHR)

The last thing you want is a long trip to your hotel if you're getting in late on an Osmani International Airport to London Heathrow Airport flight. Book one of these accommodation options near LHR instead:
Explore without limits with a London Heathrow Airport rental car. Pick up a set of wheels from Surprice, U-Save or Green Motion and experience more of London and beyond.
For the best deal, reserve your ride from London Heathrow Airport about one week before your trip.

Getting from London Heathrow Airport (LHR) to central London

From London Heathrow Airport, London is approximately 31 kilometres away. It takes around 55 minutes to get to the centre driving.
When travelling by public transport, expect a journey of roughly 1 hour.

When to fly to London Heathrow Airport (LHR)

The quietest month for a flight from Osmani International Airport to London Heathrow Airport is February, while July is the most popular. Pick the best time to go to London based on whether you prefer a faster pace or a more relaxed vibe.
When reserving your flight from Osmani International Airport to London Heathrow Airport, think about the kind of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).
If you want cooler conditions, look for a cheap ticket from ZYL to LHR in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of United Kingdom

Birmingham is just one of the many cities in United Kingdom waiting to be explored once you've taken in the sights of London. Around 161 kilometres away to the north-west, check out popular attractions including Cadbury World, The Library of Birmingham and National Sea Life Centre.
Bristol is another must-experience destination in United Kingdom and is around 177 kilometres west of London. No trip is complete without dropping by Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.