Cheap flights from London to Sydney from $923 LCY, LGW, LHR, LTN, SEN, STN → SYD, WSI
London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Sydney (Kingsford Smith) Airport (SYD), Western Sydney Airport (WSI)
The cheapest return found recently is $1,253 with Air India, 26 Mar 2027 – 13 Apr 2027, found 2 days ago. The cheapest one-way found recently is $923 with Pegasus Airlines, 13 Oct 2027, found 5 days ago.
- Cheapest one-way found recently
- $923, found 5 days ago
- Cheapest return found recently
- $1,253, 26 Mar 2027 to 13 Apr 2027
- Usual return price
- $1,223 to $1,429
- Cheapest month to fly
- March 2027, return fares from $905 found in the last 7 days
- Airlines with nonstop flights
- Qantas, British Airways
Return
The cheapest return fare on each of 11 departure dates is usually $1,223 to $1,429.
Cheapest return found recently
$1,253
26 Mar 2027 – 13 Apr 2027 · Air India
London Luton Airport (LTN) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 9:45 p.m. · Return leaves 5:30 p.m. · 81 h 5 min of travel, both ways together
out 3 stops, back 3 stops · via Leonardo da Vinci-Fiumicino Airport (FCO), Vienna International Airport (VIE), Changi International Airport (SIN), Indira Gandhi International Airport (DEL), Milano Malpensa Airport (MXP), Barcelona-El Prat Airport (BCN) · separate tickets likely: collect your bags and check in again · overnight connection · 10 h connection
found 2 days ago
Cheapest nonstop return
$2,691
26 Mar 2027 – 12 Apr 2027 · Qantas
London Heathrow Airport (LHR) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 8:10 p.m. · Return leaves 3:35 p.m. · 48 h 15 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Every nonstop date from London to Sydney
Found recently, and the cheapest we hold
$1,253 26 Mar 2027 – 13 Apr 2027found 2 days agoSee prices for these dates
$905 1 Mar 2027 – 26 Mar 2027found 3 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $703 to $1,011.
At $1,253, the cheapest return found recently is above that range.
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 11 departure dates from 1 Dec to 26 Mar 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 18-night return fares leaving within 3 days of 26 Mar 2027 to compare.
Every date we hold
326 fares on 11 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Dec – 25 Dec | $1,011 | China Eastern | London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 3 Dec – 14 Dec | $1,245 | Air India | London Heathrow Airport (LHR) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 4 Dec – 14 Dec | $1,529 | Emirates | Stansted Airport (STN) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 26 Dec – 8 Jan 2027 | $1,433 | Air India | Stansted Airport (STN) → Sydney (Kingsford Smith) Airport (SYD) | out 3 stops, back 3 stops | found 8 days ago | See prices for these dates |
| 5 Jan 2027 – 12 Jan 2027 | $1,418 | Air India | London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD) | out 3 stops, back 3 stops | found 3 days ago | See prices for these dates |
| 7 Feb 2027 – 18 Feb 2027 | $1,200 | Shenzhen Airlines | London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD) | out 3 stops, back 3 stops | found 5 days ago | See prices for these dates |
| 9 Feb 2027 – 15 Feb 2027 | $1,311 | Air China | London Heathrow Airport (LHR) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 11 Feb 2027 – 14 Feb 2027 | $1,425 | Qatar Airways | London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 13 Feb 2027 – 14 Feb 2027 | $1,498 | Qatar Airways | London Heathrow Airport (LHR) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 1 Mar 2027 – 26 Mar 2027 | $905 | China Eastern | London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 26 Mar 2027 – 13 Apr 2027 | $1,253 | Air India | London Luton Airport (LTN) → Sydney (Kingsford Smith) Airport (SYD) | out 3 stops, back 3 stops | found 2 days ago | See prices for these dates |
Which month looks cheapest?
March 2027 is the cheapest month — from $905.
Airlines on the cheapest dates: Air India, China Eastern, Qatar Airways, Emirates, Shenzhen Airlines, Air China.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$923
13 Oct 2027 · Pegasus Airlines
London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 2:40 p.m. · 41 h 10 min trip
2 stops
found 5 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$923 13 Oct 2027found 5 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 14 days, 22 Oct to 11 Nov, the cheapest one-way we saw each day was $536 to $1,551.
14 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 13 Oct 2027 to compare.
Every date we hold
5 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Oct 2027 | $923 | Pegasus Airlines | London Gatwick Airport (LGW) → Sydney (Kingsford Smith) Airport (SYD) | 2 stops | found 5 days ago | Open this trip |
Airlines on the cheapest dates: Pegasus Airlines.
Premium cabin fares from London to Sydney
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 26 Mar 2027 – 13 Apr 2027 in another cabin: Premium economy · Business · First
Today's prices for 13 Oct 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for London to Sydney?
Return
Fares 14 to 29 days before departure were typically 11% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 |
|---|---|---|---|---|
| 0–6 days | $1,125 | $961 | +12% | 18 |
| 7–13 days | $1,631 | $1,109 | +62% | 20 |
| 14–29 days | $1,005 | $703 | Cheapest seen | 40 |
| 30–59 days | $1,107 | $871 | +10% | 47 |
| 60–89 days | $1,083 | $993 | +8% | 44 |
| 90–179 days | $1,036 | $905 | +3% | 49 |
| 180+ days | $1,246 | $878 | +24% | 37 |
One-way
Not enough history yet: in 14 days of one-way prices, 22 Oct to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 26 Mar 2027 – 13 Apr 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 Sydney?
The cheapest return found recently is $1,253 with Air India, 26 Mar 2027 to 13 Apr 2027, found 2 days ago. The cheapest return we hold, of any age, is $905 with China Eastern, 1 Mar 2027 to 26 Mar 2027, found 3 days ago. The cheapest return fare on each of 11 departure dates is usually $1,223 to $1,429.
How much is a one-way flight from London to Sydney?
The cheapest one-way found recently is $923 with Pegasus Airlines, 13 Oct 2027, found 5 days ago.
What is the cheapest month to fly from London to Sydney?
March 2027 is the cheapest month for a return, from $905, 1 Mar 2027 to 26 Mar 2027, found 3 days ago.
How far ahead should I book a flight from London to Sydney?
In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 11% lower than 0 to 6 days before departure.
Is there a direct flight from London to Sydney?
Yes, the cheapest nonstop return found recently is $2,691 with Qantas, 26 Mar 2027 to 12 Apr 2027, found 2 days ago.
How long is the flight from London to Sydney?
The cheapest one-way found recently, with Pegasus Airlines on 13 Oct 2027, takes 41 h 10 min with 2 stops.
Which airlines have the cheapest flights from London to Sydney?
Between 1 Dec and 26 Mar 2027, Air India has the cheapest return on 4 of the 11 departure dates we hold, China Eastern on 2 and Qatar Airways on 2.
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