Cheap flights from Sydney to London
Recently found return fares from $426, with November the cheapest month we know of. Compare dates, then book with the partner you choose.
Cheapest months to fly
Lowest recently found return fare in each month. Tap a month to see that month's calendar.
Lowest fares for the best day
- China SouthernWed 11 Nov – Wed 18 Nov · 1 stop · 22h 35m $797
- China SouthernTue 3 Nov – Sat 7 Nov · 1 stop · 22h 30m $821
- China SouthernWed 4 Nov – Sat 7 Nov · 1 stop · 22h 50m $825
- MFTue 3 Nov – Wed 4 Nov · 1 stop · 22h 30m $869
- China SouthernWed 4 Nov – Fri 6 Nov · 1 stop · 22h 50m $943
Airports in London
- LHRHeathrow
- LGWGatwick
- STNStansted
- LTNLuton
- LCYCity
Airport in Sydney
- SYDKingsford Smith
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FAQ
Questions about this route
Search the help center or send us a message. We reply by email.
Help center Contact us01What is the cheapest month to fly from Sydney to London?
Based on recently found fares, November 2026 has the lowest price we know of, from $426. Prices change often, so check the calendar for current fares.
02Which airports serve London?
London is served by Heathrow (LHR), Gatwick (LGW), Stansted (STN), Luton (LTN), City (LCY). Searching the city code compares all of them at once.
03Are the prices on this page final?
No. They are recently found fares. When you open a deal, the partner shows the live price, including taxes and fees, before you pay.
04How can I get an alert when flights to London get cheaper?
Use the price alert on this page. Choose your dates or a whole month and we will email you when the fare drops.