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Cheap flights from the United Kingdom to Sydney from $771

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Sydney
Explore the most affordable flight options available from United Kingdom to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 December 2025.

Sun 28/1211:35LGW - SYD
1 stop40h 55mAir China
Wed 14/120:40SYD - LGW
1 stop43h 55mAir China
Deal found 24/12$1,531
Mon 29/1217:40LHR - SYD
1 stop34h 50mMultiple Airlines
Sat 17/120:40SYD - LHR
2 stops35h 45mMultiple Airlines
Deal found 24/12$1,534
Mon 29/1220:25LHR - SYD
1 stop32h 05mAir China
Sat 17/120:40SYD - LHR
1 stop32h 10mAir China
Deal found 26/12$1,558
Wed 31/1217:00LGW - SYD
2 stops40h 55mMultiple Airlines
Wed 14/120:40SYD - LGW
1 stop43h 55mMultiple Airlines
Deal found 25/12$1,594
Sun 28/1217:40LHR - SYD
1 stop34h 50mAir China
Thu 22/120:40SYD - LHR
1 stop32h 10mAir China
Deal found 24/12$1,595
Wed 24/1219:45LHR - SYD
1 stop32h 35mMultiple Airlines
Sat 31/115:15SYD - LHR
1 stop38h 20mMultiple Airlines
Deal found 24/12$1,606
Sun 28/1217:40LHR - SYD
1 stop34h 50mAir China
Tue 13/120:40SYD - LHR
1 stop32h 10mAir China
Deal found 26/12$1,607
Sun 28/1217:15LHR - SYD
2 stops26h 20mChina Southern
Mon 9/222:00SYD - LHR
1 stop31h 35mChina Southern
Deal found 25/12$1,619
Tue 30/1221:30LHR - SYD
2 stops35h 50mMultiple Airlines
Tue 3/220:40SYD - LHR
1 stop30h 15mMultiple Airlines
Deal found 23/12$1,628
Tue 30/1221:00LHR - SYD
1 stop29h 35mChina Eastern
Tue 3/212:00SYD - LHR
1 stop40h 30mChina Eastern
Deal found 23/12$1,640
Fri 26/1221:00LHR - SYD
1 stop26h 00mChina Eastern
Fri 23/112:00SYD - LHR
1 stop40h 30mChina Eastern
Deal found 24/12$1,661
Wed 31/1217:05LGW - SYD
2 stops26h 30mTurkish Airlines
Wed 14/121:15SYD - LGW
2 stops36h 20mTurkish Airlines
Deal found 25/12$1,673

Find flight deals from United Kingdom to Sydney

Keep the following information in mind while searching for United Kingdom to Sydney flight deals. Data was last updated 26 December 2025.

Round-trip from

$1,518

One-way from

$771

Popular in

December

Cheapest in

May

Average price

$2,637

Good round-trip deal

$2,017 or less

Good one-way deal

$1,315 or less
11/3-25/3
  • 11/3-25/3
  • 4 total stops
  • 78h 30m total
  • United Kingdom to Sydney
Search Deals
15/3
  • 15/3
  • 3 total stops
  • 48h 50m total
  • United Kingdom to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($297 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($99 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from United Kingdom to Sydney Kingsford Smith.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 26 December 2025.
Use the filters below to find and compare flights from the United Kingdom to Sydney that are best for you.

Fly from

United Kingdom

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 7/3

16:40-06:35

2 stops26h 55m

Sydney Kingsford Smith

Thu 12/3

21:45-14:45

2 stops28h 00m

$1,552

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 17/5

10:50-06:10

2 stops34h 20m

Sydney Kingsford Smith

Sat 23/5

21:30-22:25

2 stops33h 55m

$1,555

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 1/3

14:30-18:50

2 stops41h 20m

Sydney Kingsford Smith

Sat 14/3

21:15-23:15

2 stops37h 00m

$1,591

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 1/3

14:30-18:50

2 stops41h 20m

Sydney Kingsford Smith

Sun 22/3

21:15-23:15

2 stops37h 00m

$1,613

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 17/5

06:30-17:00

2 stops25h 30m

Sydney Kingsford Smith

Sat 23/5

21:30-16:50

2 stops28h 20m

$1,616

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 20/5

12:20-10:20

2 stops37h 00m

Sydney Kingsford Smith

Mon 25/5

14:35-11:25

2 stops29h 50m

$1,640

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 19/5

12:20-10:20

2 stops37h 00m

Sydney Kingsford Smith

Mon 25/5

14:35-08:20

2 stops26h 45m

$1,640

LondonSydney

LTN - SYD

LTNSYD

London Luton

Thu 29/1

06:15-06:45

3 stops37h 30m

Sydney Kingsford Smith

Sat 7/2

14:00-14:00

2 stops35h 00m

$1,686

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 24/6

17:45-19:10

2 stops40h 25m

Sydney Kingsford Smith

Wed 15/7

15:40-16:50

2 stops34h 10m

$1,688

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 20/5

19:30-10:20

2 stops29h 50m

Sydney Kingsford Smith

Wed 27/5

14:35-08:20

2 stops26h 45m

$1,691

Flights are sorted by cheapest return flights first.

Deals found on 25/12

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Sydney

What is the cheapest month to book a flight from United Kingdom to Sydney?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $666). Flying from United Kingdom to Sydney in January is currently the most expensive (average of $1,509). 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.

What is the cheapest time of day to fly from GB to SYD?

Find hourly flight availability from United Kingdom to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 18% on flights from United Kingdom to Sydney by exploring options for tickets in the afternoon.

What is the cheapest day to fly from United Kingdom to Sydney?

Use this chart to determine the cheapest time to fly return from United Kingdom to Sydney. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Sydney flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from United Kingdom to Sydney

Explore weekly flight availability from United Kingdom to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 26 December 2025.

The most flights from GB0 to SYD are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 26 December 2025.
See what other customers who have flown with Cathay Pacific, China Southern, andQatar Airways from the United Kingdom to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,105 reviews
Check prices

Food

7.3

Overall

7.6

Boarding

7.9

Comfort

7.6

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Nancy,Dec 2025

SIN - HKG

Our flight was at4:45pm, and they allowed us to check in at 9am, which is good that we don’t have to carry the luggage to walk around. Our seats were assigned at the very back, and we requested to have it closed to the front, they were able to move forward a little bit. We requested to ship our carry on, but they charged extra fees, other airlines like air Canada would encourage customers to ship their carry on.
Cathay Pacific
7.6
Good
1,105 reviews
Cathay Pacific
7.6
Good
1,105 reviews
Check prices

Food

7.3

Overall

7.6

Boarding

7.9

Comfort

7.6

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Nancy,Dec 2025

SIN - HKG

Our flight was at4:45pm, and they allowed us to check in at 9am, which is good that we don’t have to carry the luggage to walk around. Our seats were assigned at the very back, and we requested to have it closed to the front, they were able to move forward a little bit. We requested to ship our carry on, but they charged extra fees, other airlines like air Canada would encourage customers to ship their carry on.
China Southern
7.5
Good
123 reviews
Cathay Pacific
7.6
Good
1,105 reviews
Check prices

Food

7.3

Overall

7.6

Boarding

7.9

Comfort

7.6

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Nancy,Dec 2025

SIN - HKG

Our flight was at4:45pm, and they allowed us to check in at 9am, which is good that we don’t have to carry the luggage to walk around. Our seats were assigned at the very back, and we requested to have it closed to the front, they were able to move forward a little bit. We requested to ship our carry on, but they charged extra fees, other airlines like air Canada would encourage customers to ship their carry on.
Qatar Airways
7.4
Good
3,692 reviews
Cathay Pacific
7.6
Good
1,105 reviews
Check prices

Food

7.3

Overall

7.6

Boarding

7.9

Comfort

7.6

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Nancy,Dec 2025

SIN - HKG

Our flight was at4:45pm, and they allowed us to check in at 9am, which is good that we don’t have to carry the luggage to walk around. Our seats were assigned at the very back, and we requested to have it closed to the front, they were able to move forward a little bit. We requested to ship our carry on, but they charged extra fees, other airlines like air Canada would encourage customers to ship their carry on.
Etihad Airways
7.4
Good
1,337 reviews
Cathay Pacific
7.6
Good
1,105 reviews
Check prices

Food

7.3

Overall

7.6

Boarding

7.9

Comfort

7.6

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Nancy,Dec 2025

SIN - HKG

Our flight was at4:45pm, and they allowed us to check in at 9am, which is good that we don’t have to carry the luggage to walk around. Our seats were assigned at the very back, and we requested to have it closed to the front, they were able to move forward a little bit. We requested to ship our carry on, but they charged extra fees, other airlines like air Canada would encourage customers to ship their carry on.
China Eastern
7.2
Good
183 reviews
Cathay Pacific
7.6
Good
1,105 reviews
Check prices

Food

7.3

Overall

7.6

Boarding

7.9

Comfort

7.6

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Nancy,Dec 2025

SIN - HKG

Our flight was at4:45pm, and they allowed us to check in at 9am, which is good that we don’t have to carry the luggage to walk around. Our seats were assigned at the very back, and we requested to have it closed to the front, they were able to move forward a little bit. We requested to ship our carry on, but they charged extra fees, other airlines like air Canada would encourage customers to ship their carry on.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from United Kingdom?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from United Kingdom. Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • How long is the flight from United Kingdom to Sydney?

    A quick flight from United Kingdom to Sydney can take about 25h 55m. Turkish Airlines provides one of the quickest options available for as low as $1,761. There are 16975 km between United Kingdom and Sydney. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from United Kingdom to Sydney one-way?

    To fly one-way, consider booking your trip with Air China, which is currently one of the cheapest options available, starting at $680. Tianjin Airlines flights start at $720 while deals on China Eastern start at $728 one-way.

  • What are the most popular routes from United Kingdom to Sydney?

    The most popular flight routes from United Kingdom to Sydney are London Heathrow - Sydney Kingsford Smith, London Gatwick - Sydney Kingsford Smith and London Stansted - Sydney Kingsford Smith.

  • What are the cheapest flights from United Kingdom to Sydney?

    Looking at all options, your cheapest flight can be booked for $1,315. While the most popular route (London Heathrow - Sydney Kingsford Smith) can be booked for $1,106 on average, our data indicates $2,032 when flying from United Kingdom to Sydney.

  • Can I find deals for flights from United Kingdom to Sydney that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Sydney.

  • Can I find deals for business class flights from United Kingdom to Sydney?

    Yes. Cheapflights offers flight deals from United Kingdom to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Sydney?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $666). Flying from United Kingdom to Sydney in January is currently the most expensive (average of $1,509). 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.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Cronulla
Bondi Beach

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Alternative routes for United Kingdom to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to Sydney

Discover the top 10 airlines that operate flights from United Kingdom to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 26 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,037Average$2,204FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,065Average$1,570FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,078Average$1,487FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Qatar AirwaysCheapest$1,457Average$2,322FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Air IndiaCheapest$1,466Average$2,083FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,500Average$2,047FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
China AirlinesCheapest$1,528Average$1,669FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Etihad AirwaysCheapest$1,548Average$2,303FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Singapore AirlinesCheapest$1,555Average$2,411FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
SWISSCheapest$1,555Average$2,140FlexibilityNo cancel feeOn-time79%
Search SWISS flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Sydney?

Deals for United Kingdom to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Sydney?

Millions of users choose and trust Cheapflights to book the best flight deals from United Kingdom to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from United Kingdom to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from United Kingdom to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Sydney become cheaper?

Yes! Start tracking prices for United Kingdom to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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