
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $875 (China Eastern) |
One-way from | $315 (China Eastern) |
Popular in | December |
Cheapest in | October |
Average price | $1,380 |
Fly from
Fly to
Route
Depart
Return
Price
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 6/1
8:30 pm-6:40 pm
1 stop31h 10m
London Heathrow
Mon 6/15
9:20 pm-7:40 am
2 stops49h 20m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 5/18
8:30 pm-6:40 pm
1 stop31h 10m
London Heathrow
Thu 5/21
9:20 pm-9:00 am
1 stop26h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Wed 6/10
8:30 pm-6:40 pm
1 stop31h 10m
London Heathrow
Tue 6/23
9:20 pm-9:00 am
1 stop26h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Thu 6/11
11:00 am-6:40 pm
1 stop40h 40m
London Heathrow
Mon 6/22
9:20 pm-9:00 am
1 stop26h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 2/15
9:15 pm-4:10 pm
2 stops29h 55m
London Heathrow
Sat 2/28
6:35 am-7:20 pm
2 stops25h 45m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Wed 6/3
9:05 pm-3:10 pm
2 stops27h 05m
London Heathrow
Wed 6/24
6:30 am-7:10 pm
2 stops27h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Wed 6/10
9:05 pm-3:10 pm
2 stops27h 05m
London Heathrow
Tue 6/23
6:30 am-7:10 pm
2 stops27h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 5/17
9:05 pm-3:10 pm
2 stops27h 05m
London Heathrow
Thu 5/21
6:30 am-7:10 pm
2 stops27h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 5/10
9:05 pm-3:10 pm
2 stops27h 05m
London Heathrow
Tue 5/26
6:30 am-7:10 pm
2 stops27h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 6/28
8:30 pm-6:40 pm
1 stop31h 10m
London Heathrow
Wed 7/15
9:20 pm-8:00 am
3 stops73h 40m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
The best time to book flights from Sydney to London Heathrow Airport is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, May is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $798). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,223). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Sydney to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Bangkok (BKK) – chosen by Cheapflights users on 17% of 1-stop itineraries from Sydney to London Heathrow Airport on Cheapflights.
Shanghai (PVG) is the most affordable 1-stop option, with an average round-trip price of $1,177.
Flights via Singapore (SIN) have the shortest average one-way travel time for 1-stop routes: 24h 14m.
Flights via Singapore (SIN) offer the fastest connection on this route, with an average layover time of 2h 19m.
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wee Keng,Dec 2025
HKG - SIN
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wee Keng,Dec 2025
HKG - SIN
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wee Keng,Dec 2025
HKG - SIN
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wee Keng,Dec 2025
HKG - SIN
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wee Keng,Dec 2025
HKG - SIN
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wee Keng,Dec 2025
HKG - SIN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$956 | Average$1,227 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$1,005 | Average$1,223 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,092 | Average$1,405 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,102 | Average$1,235 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,102 | Average$1,691 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,147 | Average$1,526 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$1,186 | Average$1,427 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,216 | Average$1,457 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,316 | Average$1,333 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,391 | Average$1,800 | FlexibilityNo cancel fee | On-time74% |