Cheap flights from London to Sylhet from $1,079 LGW, LHR, LTN, SEN, STN → ZYL
London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Civil Airport (ZYL)
The cheapest return found recently is $1,079 with Air India, 30 Jan 2027 – 21 Feb 2027, found 12 hours ago.
- Cheapest return found recently
- $1,079, 30 Jan 2027 to 21 Feb 2027
- Usual return price
- $1,147 to $1,548
- Cheapest month to fly
- January 2027, return fares from $1,079 found in the last 7 days
- Airlines with nonstop flights
- Biman Bangladesh Airlines
Return
The cheapest return fare on each of 3 departure dates is usually $1,147 to $1,548.
Cheapest return found recently
$1,079
30 Jan 2027 – 21 Feb 2027 · Air India
London Heathrow Airport (LHR) → Civil Airport (ZYL)
Leaves 8:30 p.m. · Return leaves 10:10 p.m. · 75 h 50 min of travel, both ways together
out 2 stops, back 2 stops · via Chhatrapati Shivaji International Airport (BOM), Hazrat Shahjalal International Airport (DAC), Indira Gandhi International Airport (DEL) · overnight connection · 20 h connection
found 12 hours ago
Cheapest nonstop return
$1,261
30 Jan 2027 – 21 Feb 2027 · Biman Bangladesh Airlines
London Heathrow Airport (LHR) → Civil Airport (ZYL)
Leaves 6:15 p.m. · Return leaves 10:05 p.m. · 21 h 20 min of travel, both ways together
out nonstop, back nonstop
found 12 hours ago
Found recently, and the cheapest we hold
$1,079 30 Jan 2027 – 21 Feb 2027found 12 hours agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 48 days, 26 Sept to 12 Nov, the cheapest return we saw each day was $866 to $1,093.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 18 Dec to 13 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 22-night return fares leaving within 3 days of 30 Jan 2027 to compare.
Every date we hold
29 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 18 Dec – 5 Jan 2027 | $1,882 | easyJet | London Southend Airport (SEN) → Civil Airport (ZYL) | out 4 stops, back 3 stops | found today | See prices for these dates |
| 30 Jan 2027 – 21 Feb 2027 | $1,079 | Air India | London Heathrow Airport (LHR) → Civil Airport (ZYL) | out 2 stops, back 2 stops | found 12 hours ago | See prices for these dates |
| 13 Feb 2027 – 27 Feb 2027 | $1,214 | Biman Bangladesh Airlines | London Heathrow Airport (LHR) → Civil Airport (ZYL) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $1,079.
Airlines on the cheapest dates: easyJet, Air India, Biman Bangladesh Airlines.
Premium cabin fares from London to Sylhet
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 30 Jan 2027 – 21 Feb 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for London to Sylhet?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 26 Sept and 12 Nov (48 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $978 | $967 | Cheapest seen | 13 |
| 30–59 days | $1,311 | $967 | +34% | 23 |
| 60–89 days | $1,025 | $907 | +5% | 35 |
| 90–179 days | $1,093 | $866 | +12% | 39 |
| 180+ days | $1,036 | $994 | +6% | 12 |
Live price for these dates
The cheapest return found recently is for 30 Jan 2027 – 21 Feb 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from London to Sylhet?
The cheapest return found recently is $1,079 with Air India, 30 Jan 2027 to 21 Feb 2027, found 12 hours ago. The cheapest return fare on each of 3 departure dates is usually $1,147 to $1,548.
What is the cheapest month to fly from London to Sylhet?
January 2027 is the cheapest month for a return, from $1,079, 30 Jan 2027 to 21 Feb 2027, found 12 hours ago.
How far ahead should I book a flight from London to Sylhet?
In 48 days of prices between 26 Sept and 12 Nov, return fares were cheapest 14 to 29 days before departure.
Is there a direct flight from London to Sylhet?
Yes, the cheapest nonstop return found recently is $1,261 with Biman Bangladesh Airlines, 30 Jan 2027 to 21 Feb 2027, found 12 hours ago.
Which airlines have the cheapest flights from London to Sylhet?
Between 18 Dec and 13 Feb 2027, easyJet has the cheapest return on 1 of the 3 departure dates we hold, Air India on 1 and Biman Bangladesh Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work