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ZYL - LHR

Find cheap flights from Sylhet to London Heathrow Airport

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KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sylhet to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sylhet to London, as well as popular online travel agencies
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Cheap Flight Deals from Sylhet to Heathrow (ZYL-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sylhet to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Sylhet to Heathrow

KAYAK's recommended return flight deals from the most popular airlines that fly from Sylhet to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
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ZYL-LHR
4979 mimulti-stop
Multiple Airlines Logo
LHR-ZYL
4979 mimulti-stop
Multiple Airlines
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KAYAK's insights & trends for Sylhet to Heathrow flights

Get data-powered insights and trends into flights from Sylhet to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Sylhet to London Heathrow Airport?

The average price of all round-trip flights from Sylhet to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
For Sylhet to London Heathrow Airport, Thursday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from London Heathrow Airport back to Sylhet, the best deals are generally found on Sunday, with Tuesday being the most expensive.

What is the cheapest month to fly from Sylhet to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sylhet to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Sylhet to London Heathrow Airport is June, where tickets cost £855 (return) on average. On the other hand, the most expensive months are August and January, where the average cost of round-trip tickets is £1,480 and £1,294 respectively.
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Good to know - Cheap tickets from Sylhet to London Heathrow Airport

Low season

February

High season

August
Best time to beat the crowds (1% less expensive on average)
Most popular time to fly (37% more expensive on average)

When to book flights from Sylhet to Heathrow

Are your dates flexible? Find out the best times to travel from Sylhet to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Sylhet to London Heathrow Airport flights

  • Which aircraft models fly most regularly from Sylhet to London Heathrow Airport?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Sylhet to London Heathrow Airport flight route.

  • On which days can I fly direct from Sylhet to London Heathrow Airport?

    You can catch a direct flight from Sylhet to London Heathrow Airport on Wednesday, Thursday, Friday, Saturday, and Sunday.

  • How does KAYAK find such low prices on flights from Sylhet to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sylhet to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sylhet to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Sylhet is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sylhet to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Sylhet with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sylhet to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Sylhet up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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KAYAK’s top tips for finding a cheap flight from Sylhet to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Sylhet? 25% of our users found flights on this route for £442 or less one-way and £836 or less round-trip.

Prefer to fly direct from Sylhet to London Heathrow Airport?

Find which airlines fly direct from Sylhet Osmani Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Sylhet Osmani Intl to London Heathrow

Wednesday

Biman Bangladesh

Biman Bangladesh

Thursday

Biman Bangladesh

Biman Bangladesh

Friday

Biman Bangladesh

Biman Bangladesh

Saturday

Biman Bangladesh

Biman Bangladesh

Sunday

Biman Bangladesh

Biman Bangladesh

See more direct flights

Direct returns

London Heathrow to Sylhet Osmani Intl

Wednesday

Biman Bangladesh

Biman Bangladesh

Thursday

Biman Bangladesh

Biman Bangladesh

Friday

Biman Bangladesh

Biman Bangladesh

Saturday

Biman Bangladesh

Biman Bangladesh

Sunday

Biman Bangladesh

Biman Bangladesh

See more direct flights
See more direct flights

Top airline flying from Sylhet to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Sylhet to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sylhet to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
Biman BangladeshOverall score based on 22 reviews
6.5Comfort
7.0Food
7.8Crew
7.2Boarding
6.2Entertainment
Airline reviews

The food quality could have been a little better. Not sure if the flight was late due to weather but that was another thing. Overall it was a good experience.

10.0 ExcellentAhnaf Abrar, Feb 2025DAC - KTM
Read more Biman Bangladesh reviews

The food quality could have been a little better. Not sure if the flight was late due to weather but that was another thing. Overall it was a good experience.

It was ok. I wish if they could maintain the time.

Internal air serrulation was poor, felt suffocated after a while. Food was horrible. Seats were not comfortable at all, no leg or arm stretch room at all, even though I am not a big person at all. Dhaka transit passengers' waiting area was also horrible, dirty and unfriendly service. Middle of the journey opening previously checked in baggage was extremely unpleasant experience. I never experienced anything like this before in my 30+ years airplane journey experience.

I like food, look for extra meals or foods please

Late Biman. I will never ever go with Biman again.

There was a lot of kindness on the part of the crew. There was a strong smell throughout the plane.

Everything you need to know for your flight from Sylhet to Heathrow

Information on your arrival and departure airports

Heathrow (LHR)
Sylhet (ZYL)

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