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Cheap Flights from Sydney to London - Heathrow

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Reverse direction: LHR to SYD

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CZ Return flights from $1,519
Dep. Mon 26 OctRet. Sat 31 Oct$1,519
Dep. Mon 19 OctRet. Mon 16 Nov$1,563
CZShow more Flights
Dep. Mon 19 OctRet. Tue 27 Oct$1,661
Dep. Thu 01 OctRet. Thu 22 Oct$1,895
Dep. Wed 03 MarRet. Wed 17 Mar$1,965
Dep. Fri 16 OctRet. Fri 06 Nov$2,535
Dep. Sat 29 AugRet. Sat 05 Sep$2,859
Dep. Sun 20 DecRet. Wed 06 Jan$3,368
Dep. Thu 01 JulRet. Sat 31 Jul$3,596
Dep. Sat 19 DecRet. Mon 04 Jan$3,857
Dep. Sun 20 SepRet. Wed 07 Oct$3,956
Dep. Wed 24 MarRet. Wed 21 Apr$7,037
MU Return flights from $1,569
Dep. Mon 19 OctRet. Mon 16 Nov$1,569
Dep. Mon 19 OctRet. Tue 27 Oct$1,646
MUShow more Flights
Dep. Mon 26 OctRet. Sat 31 Oct$1,777
Dep. Fri 16 OctRet. Fri 06 Nov$1,795
Dep. Thu 01 OctRet. Thu 22 Oct$2,023
Dep. Sun 20 SepRet. Wed 07 Oct$2,306
Dep. Wed 03 MarRet. Wed 17 Mar$2,307
Dep. Sat 29 AugRet. Sat 05 Sep$2,786
Dep. Sun 20 DecRet. Wed 06 Jan$3,259
Dep. Sat 19 DecRet. Mon 04 Jan$3,446
Dep. Thu 01 JulRet. Sat 31 Jul$3,990
Dep. Wed 24 MarRet. Wed 21 Apr$9,699
AI Return flights from $1,756
Dep. Mon 19 OctRet. Mon 16 Nov$1,756
Dep. Fri 16 OctRet. Fri 06 Nov$1,756
AIShow more Flights
Dep. Sun 20 SepRet. Wed 07 Oct$1,756
Dep. Mon 19 OctRet. Tue 27 Oct$1,789
Dep. Mon 26 OctRet. Sat 31 Oct$1,791
Dep. Wed 03 MarRet. Wed 17 Mar$2,304
Dep. Thu 01 OctRet. Thu 22 Oct$2,341
Dep. Thu 01 JulRet. Sat 31 Jul$3,519
Dep. Sat 29 AugRet. Sat 05 Sep$3,798
Dep. Sat 19 DecRet. Mon 04 Jan$5,206
Dep. Sun 20 DecRet. Wed 06 Jan$5,706
Dep. Wed 24 MarRet. Wed 21 Apr$12,403
CZ,EY Return flights from $1,763
Dep. Mon 26 OctRet. Sat 31 Oct$1,763
Dep. Mon 19 OctRet. Mon 16 Nov$1,772
CZ,EYShow more Flights
Dep. Fri 16 OctRet. Fri 06 Nov$1,798
Dep. Mon 19 OctRet. Tue 27 Oct$1,826
Dep. Wed 03 MarRet. Wed 17 Mar$1,977
Dep. Thu 01 OctRet. Thu 22 Oct$1,996
Dep. Sat 29 AugRet. Sat 05 Sep$4,142
Dep. Sat 19 DecRet. Mon 04 Jan$4,816
Dep. Sun 20 DecRet. Wed 06 Jan$5,333
EY,MU Return flights from $1,773
Dep. Mon 19 OctRet. Mon 16 Nov$1,773
Dep. Wed 03 MarRet. Wed 17 Mar$1,941
EY,MUShow more Flights
Dep. Fri 16 OctRet. Fri 06 Nov$1,991
Dep. Mon 26 OctRet. Sat 31 Oct$2,028
Dep. Mon 19 OctRet. Tue 27 Oct$2,278
Dep. Thu 01 OctRet. Thu 22 Oct$2,381
Dep. Sun 20 SepRet. Wed 07 Oct$3,128
Dep. Sat 29 AugRet. Sat 05 Sep$4,017
Dep. Sun 20 DecRet. Wed 06 Jan$4,499
Dep. Sat 19 DecRet. Mon 04 Jan$4,651
Dep. Wed 24 MarRet. Wed 21 Apr$14,192
CA,EY Return flights from $1,774
Dep. Mon 19 OctRet. Mon 16 Nov$1,774
Dep. Mon 19 OctRet. Tue 27 Oct$1,968
CA,EYShow more Flights
Dep. Mon 26 OctRet. Sat 31 Oct$2,025
Dep. Fri 16 OctRet. Fri 06 Nov$2,112
Dep. Wed 03 MarRet. Wed 17 Mar$2,312
Dep. Sun 20 DecRet. Wed 06 Jan$4,307
Dep. Sat 19 DecRet. Mon 04 Jan$4,723
5J,CZ,TR Return flights from $1,787
Dep. Mon 19 OctRet. Mon 16 Nov$1,787
5J,AK,CZ,D7 Return flights from $1,789
Dep. Mon 19 OctRet. Mon 16 Nov$1,789
CA,CZ Return flights from $1,795
Dep. Mon 26 OctRet. Sat 31 Oct$1,795
Dep. Mon 19 OctRet. Mon 16 Nov$1,813
CA,CZShow more Flights
Dep. Mon 19 OctRet. Tue 27 Oct$1,948
Dep. Thu 01 OctRet. Thu 22 Oct$2,347
Dep. Sat 29 AugRet. Sat 05 Sep$3,674
Dep. Sun 20 DecRet. Wed 06 Jan$4,194
Dep. Sat 19 DecRet. Mon 04 Jan$4,270
CZ,MU Return flights from $1,797
Dep. Mon 19 OctRet. Mon 16 Nov$1,797
Dep. Mon 19 OctRet. Tue 27 Oct$1,810
CZ,MUShow more Flights
Dep. Mon 26 OctRet. Sat 31 Oct$1,813
Dep. Fri 16 OctRet. Fri 06 Nov$1,819
Dep. Thu 01 OctRet. Thu 22 Oct$2,043
Dep. Wed 03 MarRet. Wed 17 Mar$2,262
Dep. Sat 29 AugRet. Sat 05 Sep$3,194
Dep. Sun 20 DecRet. Wed 06 Jan$3,873
Dep. Sat 19 DecRet. Mon 04 Jan$4,165
Dep. Wed 24 MarRet. Wed 21 Apr$17,592
CA,MU Return flights from $1,797
Dep. Mon 19 OctRet. Mon 16 Nov$1,797
Dep. Mon 19 OctRet. Tue 27 Oct$1,963
CA,MUShow more Flights
Dep. Fri 16 OctRet. Fri 06 Nov$2,036
Dep. Mon 26 OctRet. Sat 31 Oct$2,295
Dep. Thu 01 OctRet. Thu 22 Oct$2,701
Dep. Sat 29 AugRet. Sat 05 Sep$3,208
Dep. Sun 20 DecRet. Wed 06 Jan$3,962
Dep. Sun 20 SepRet. Wed 07 Oct$3,986
Dep. Sat 19 DecRet. Mon 04 Jan$4,672
CZ,KL,TR Return flights from $1,814
Dep. Mon 19 OctRet. Mon 16 Nov$1,814
Dep. Thu 01 OctRet. Thu 22 Oct$2,420
AK,CZ,D7,KL Return flights from $1,816
Dep. Mon 19 OctRet. Mon 16 Nov$1,816
CZ,TR,VY,W6 Return flights from $1,820
Dep. Mon 19 OctRet. Mon 16 Nov$1,820
AK,CZ,D7,VY,W6 Return flights from $1,821
Dep. Mon 19 OctRet. Mon 16 Nov$1,821

Prices are from searches made in the last 24 hours and current prices may differ.

Do you need to catch a flight to Sydney? Check out our domestic flights to Sydney. If Sydney is not your closest airport, then here are all our flights to London - Heathrow from New Zealand and flights to United Kingdom. Maybe a different destination? Here are all the flights from Sydney


Cheapest Time of Year to Fly from Sydney to London - Heathrow

Return fares from Sydney to London - Heathrow by month, based on the cheapest return airfares found for each month.

Sep 2026
$2,495
Oct 2026
$2,029
Mar 2027
$1,998
May 2027
$2,233

The cheapest month to fly to London - Heathrow is March 2027, with return fares from $1,998 — 20% cheaper than the most expensive month (September 2026, from $2,495).

When Should You Fly to London - Heathrow?

Based on the fares we've tracked, March is typically the cheapest month to fly to London - Heathrow, with return fares from $1,998. September is the most expensive month, with the cheapest return fares around $2,495.

Across the year, return fares to London - Heathrow average around $2,189. If you can travel in the off-peak months of March, October and May, you'll generally pay up to 9% less than the yearly average.


Cheapest Sydney to London - Heathrow Return Prices

These are the cheapest prices for Sydney to London - Heathrow return airfares.

September 2026
$2,495
October 2026
$2,029
March 2027
$1,998
May 2027
$2,233

How I Want That Flight can help you

What's the benefit of using I Want That Flight for my Sydney to London - Heathrow flight?

Think of us as your personal shortcut to a great deal. Instead of you opening fifty different tabs, we instantly cross-check rates across heaps of airlines and booking sites to score you the sweet spot on pricing. Millions of holidaymakers count on us every year to get them airborne, so you're running with a pretty savvy crowd.

Can you sort me out with direct flights from Sydney to London - Heathrow?

100%. As soon as the page finishes loading your options, hit the "Direct" filter. The layovers will vanish, leaving you with only the non-stop routes.

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Once you punch your details into our search tool, we unlock all kinds of handy tricks to map out your journey. We’ll map out the most budget-friendly calendar dates and takeoff slots, and let you slice and dice the data until you pinpoint the exact itinerary that works for you.

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No worries at all. Just kick off a quick search, drop your email into our price tracker, and we’ll send a heads-up straight to your inbox the moment the price drops.

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