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Cheap flights from Heathrow (LHR) to Sylhet (ZYL)

LHR — ZYL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Sylhet Osmani Intl are usually found in September or May, booked 19 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Heathrow to Sylhet

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Sylhet (ZYL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Popular in

December

Cheapest in

September

Average price

$945

Good round-trip deal

$1,282 or less
Highest demand for flights based on searches. 14% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from London Heathrow to Sylhet Osmani Intl.
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Best time to book a flight from Heathrow to Sylhet

Have a flexible travel schedule? Discover the best time to fly to Sylhet from Heathrow with our price prediction graph.
Estimated round-trip 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 London Heathrow Airport to Sylhet

How far ahead should I book a flight from London Heathrow Airport to Sylhet?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Sylhet. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Sylhet, you should look to book at least 19 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Find hourly flight availability from Heathrow 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 September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Sylhet in the morning. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight at noon.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 London Heathrow?

    For a flight from London Heathrow to Sylhet, you will be flying into Osmani Intl. Sylhet Osmani Intl (ZYL) is just 4.3 mi from the center of the city. Osmani Intl is the only Sylhet airport and it handles 0 inbound flights from London Heathrow per day. 1 airline has flights to Sylhet Osmani Intl from London Heathrow on a regular basis.

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

    Cheapflights users have booked flights from London Heathrow Airport to Sylhet round-trip from $978. You may be able to fly from London Heathrow Airport to Sylhet for 16% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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.

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Top airline flying from Heathrow to Sylhet

Discover the top airline that operate flights from Heathrow 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Biman BangladeshCheapest$978Average$1,386FlexibilityNo cancel feeOn-time45%

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