Title: £509 Cheap British Airways flights from Sydney to London (SYD→LHR) - Expedia.co.uk ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £509 Cheap British Airways flights from Sydney to London (SYD→LHR) [View £509 flight on Mon, 11 May 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:SYD,to:LHR,departure:11/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:508.20&airProductToken=AQp7CjsIwoIBEgQ2Mzk2GJIeIMM7KKXYjAMwn9-MAzhPQABYAWoDQkFHcghPTE5GODVTNnoKCNGkARIENjM5Ngo8CMKCARIENzAwNxjDOyDriQEoo-GMAzDW5IwDOE9AAVgBagNCQUdyCE9MTkY4NVM2egoI0aQBEgQ3MDA3EgoIARABGAEqAkJBGAEiBAgBEAEoAigDKAQwDQ) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## British Airways flights from Sydney to London (SYD→LHR) Prices were available within the past 7 days and start at £509 for one-way flights and £839 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Tue, 10 Mar - Tue, 17 Mar SYD Sydney LHR London £839 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SYD,to:LHR,departure:10/03/2026TANYT&leg2=from:LHR,to:SYD,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:838.79&airProductToken=AQpjCi8IwoIBEgIxNhiSHiCSaiignIcDMIWghwM4T0AAWAFqBU5PQkFHcghPTk5aOTBCNgowCMKCARICMTIYkmog64kBKPOghwMw2aeHAzhPQAFYAWoFTk9CQUdyCE9OTlo5MEI2CmMKMAjCggESAjExGOuJASCSaiig8YcDMLv3hwM4T0AAWAFqBU5PQkFHcghPTk5aOTBCNgovCMKCARICMTUYkmogkh4otfmHAzCL_YcDOE9AAVgBagVOT0JBR3IIT05OWjkwQjYSCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Wed, 11 Mar - Wed, 18 Mar SYD Sydney LHR London £840 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SYD,to:LHR,departure:11/03/2026TANYT&leg2=from:LHR,to:SYD,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:839.79&airProductToken=AQoyCjAIwoIBEgIxNhiSHiDriQEowKeHAzDvsocDOE9AAFgBagVOT0JBR3IIT05OWjkwQjYKMgowCMKCARICMTUY64kBIJIeKMz9hwMwq4iIAzhPQABYAWoFTk9CQUdyCE9OTlo5MEI2EgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) ## Alternative airports near London Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:SYD,to:LGW,departure:19/02/2026TANYT&leg2=from:LGW,to:SYD,departure:22/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick 52 min [Flights from £1,008 ](https://www.expedia.co.uk/Flights-Search?leg1=from:SYD,to:LGW,departure:19/02/2026TANYT&leg2=from:LGW,to:SYD,departure:22/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.co.uk/Flights-Search?leg1=from:SYD,to:LCY,departure:19/02/2026TANYT&leg2=from:LCY,to:SYD,departure:22/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LCY London City Closest 21 min [Flights from £1,261 ](https://www.expedia.co.uk/Flights-Search?leg1=from:SYD,to:LCY,departure:19/02/2026TANYT&leg2=from:LCY,to:SYD,departure:22/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Find the cheapest month to fly from Sydney (SYD) to London (LHR) ### May is typically the cheapest month to fly From £637 - £865 per traveller. __Flight from Sydney to London route information__ | Origin airport | Kingsford Smith Intl. | | ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Destination airport | Heathrow | | Airlines serving | Air Canada, Air China, Air France, Air India, Asiana Airlines, British Airways, Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, KLM, Korean Air, Malaysia Airlines, Oman Air, Qantas Airways, Qatar Airways, Singapore Airlines, Thai Airways International, Vietnam Airlines, Virgin Atlantic | | Popular airline | British Airways | | Distance | 16918 km | | Average flight time | 13 hours 37 mins | \*Available to Expedia members.