The cheapest times to fly from LHR to ZYL are

  • January 1st to March 11th (except the weeks of January 8th and February 12th)
  • August 27th to December 9th (except the weeks of October 22nd and November 19th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from LHR to ZYL is early October. Prices can be as high as $2032 for Saturday flights during mid December, or as low as $642 for Tuesday flights around early October.


When to Fly to Sylhet

Flying from London (LHR) to Sylhet (ZYL) will usually cost between $694 to $1807 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early October with an average ticket price of $664. Due to high demand the most expensive time to fly is mid December, with an average price of $1186. Planning your trip to low-cost times can easily save you $522 on economy flights and even more on first-class flights. Generally, any price below $882 can be considered a good price for a round-trip LHR to ZYL flight.

See below for a graph of average weekly prices for the LHR to ZYL route. All prices are for round-trip tickets in USD.

LHR to ZYL Flight Prices

Compared to other flights, the LHR to ZYL flight is cheaper than the average and costs slightly more than the average flight leaving from London. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to ZYL, and Wednesday the cheapest day to fly back into LHR. Saturdays are the most expensive days to fly to Sylhet, and Mondays are the most expensive days to return to London. Selecting flights on the least expensive days could save you up to $918 (40%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $845. Return trip prices are from the ZYL to LHR flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from LHR to ZYL can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 9 hour 57 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from LHR to ZYL while comparing.

Destination alternative #1: Hazrat Shahjalal International Airport (DAC) in Dhaka

  • 121 miles (195 km) away from ZYL
  • Usually 27.85% less expensive than ZYL
  • Nonstop flights available

See LHR to DAC flights


Flight Hacking LHR to ZYL

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from LHR to ZYL — but Champion Traveler does!

Hack #1: Dhaka (LHR > DAC > ZYL)

  • Price for both tickets: $848
  • Average savings: $34 (3.86%)

See LHR to flights


Flight Questions Answered

Still have questions about flying from LHR to ZYL? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Air India, Biman, British Airways, Cathay Dragon, Cathay Pacific, China Southern, Emirates, Etihad, Gulf Air, Saudia, Turkish Airlines, and potentially more during busy seasons.

How far away is it from Savannakhet Airport to London Heathrow Airport?

The distance between the two airports is roughly 4982 miles or 8018 kilometers.

How long does it take to fly from LHR to ZYL?

The real-world flight time for a nonstop LHR to ZYL flight is about 9 hour 57 minutes.

How many flights go between London and Sylhet?

It depends on the day of the week and the date, but a typical day might have around 41 available flights from LHR to ZYL.


Airport Location Info


Departing Airport

Origination code LHR
Origination airport name London Heathrow Airport
City London
Country the United Kingdom
Latitude 51.5
Longitude -0.5

Return Airport

Destination code ZYL
Destination airport name Savannakhet Airport
City Sylhet
Country Bangladesh
Latitude 25
Longitude 91.9


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.