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Cheap flights from the United Kingdom to Sydney from $703

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
3 Sep — 10 Sep1
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 4 August 2026.

Wed 2/906:00 -
2 stops45h 35m
Wed 9/911:00 -
2 stops39h 25m
Deal found 3/8$1,557
Mon 14/921:30 -
1 stop36h 35m
Sat 26/920:35 -
1 stop30h 40m
Deal found 3/8$1,567
Tue 1/906:00 -
2 stops42h 00m
Tue 8/911:00 -
2 stops42h 35m
Deal found 2/8$1,576
Thu 17/921:30 -
1 stop36h 35m
Tue 6/1021:35 -
1 stop30h 40m
Deal found 1/8$1,576
Tue 24/1107:00 -
2 stops38h 35m
Mon 15/310:10 -
2 stops47h 40m
Deal found 1/8$1,580
Tue 1/907:05 -
2 stops40h 55m
Tue 8/911:00 -
2 stops36h 10m
Deal found 4/8$1,586
Sun 1/1107:05 -
2 stops38h 05m
Wed 18/1110:30 -
2 stops56h 20m
Deal found 2/8$1,603
Tue 1/917:05 -
2 stops30h 55m
Tue 15/911:00 -
2 stops42h 50m
Deal found 2/8$1,605
Tue 8/922:00 -
2 stops49h 00m
Wed 30/915:40 -
2 stops35h 45m
Deal found 3/8$1,617
Mon 16/1121:00 -
1 stop26h 00m
Tue 29/1209:20 -
1 stop43h 10m
Deal found 4/8$1,617
Mon 31/822:00 -
1 stop29h 35m
Tue 22/911:00 -
1 stop37h 00m
Deal found 4/8$1,619
Thu 17/909:45 -
1 stop24h 20m
Fri 9/1021:35 -
1 stop47h 55m
Deal found 4/8$1,619

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 4 August 2026.

Round-trip from

$1,557

One-way from

$703

Popular in

December

Cheapest in

May

Average price

$2,159

Good one-way deal

$3,112 or less
2/9-9/9
  • 2/9-9/9
  • 4 total stops
  • 85h 00m total
  • United Kingdom to Sydney
Search Deals
13/9
  • 13/9
  • 2 total stops
  • 51h 40m total
  • United Kingdom to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($210 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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 4 August 2026.
Use the filters below to find and compare flights from the United Kingdom to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 30/11

21:00-10:00

1 stop26h 00m

Sydney Kingsford Smith

Tue 29/12

09:20-17:30

1 stop43h 10m

$1,670

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sat 29/8

22:00-12:35

1 stop29h 35m

Sydney Kingsford Smith

Fri 11/9

10:05-06:40

3 stops53h 35m

$1,706

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 14/10

21:20-10:00

1 stop26h 40m

Sydney Kingsford Smith

Wed 4/11

21:30-17:30

1 stop31h 00m

$1,720

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 15/9

18:00-09:00

1 stop30h 00m

Sydney Kingsford Smith

Sun 4/10

12:00-15:00

1 stop37h 00m

$1,723

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 14/9

16:10-12:35

2 stops35h 25m

Sydney Kingsford Smith

Wed 30/9

15:40-14:25

2 stops31h 45m

$1,781

LondonSydney

LTN - SYD

LTNSYD

London Luton

Tue 1/9

06:00-19:25

2 stops28h 25m

Sydney Kingsford Smith

Thu 10/9

10:05-12:55

2 stops35h 50m

$1,786

LondonSydney

SEN - SYD

SENSYD

London Southend

Sun 6/9

07:25-19:25

2 stops27h 00m

Sydney Kingsford Smith

Sun 13/9

10:05-10:30

2 stops33h 25m

$1,824

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 23/8

11:00-06:10

2 stops34h 10m

Sydney Kingsford Smith

Mon 7/9

20:50-22:50

2 stops35h 00m

$1,827
Fastest return journey

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 30/8

09:30-16:50

1 stop22h 20m

Sydney Kingsford Smith

Fri 18/9

15:40-07:00

1 stop24h 20m

$1,854

LondonSydney

STN - SYD

STNSYD

London Stansted

Tue 22/9

17:35-19:10

2 stops40h 35m

Sydney Kingsford Smith

Tue 13/10

22:05-16:50

2 stops28h 45m

$1,901

Flights are sorted by cheapest return flights first.

Deals found on 31/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, May is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $1,723). Flying from United Kingdom to Sydney in December is currently the most expensive (average of $2,726). 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 4 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Sydney as you normally would.

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 4 August 2026.

The most flights from GB0 to SYD are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How far ahead should I book a flight from United Kingdom to Sydney?

The price you pay for your flight from United Kingdom to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 4 August 2026.
See what other customers who have flown with Cathay Pacific,Qatar Airways, andChina Southern 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
1,436 reviews
Check prices

Food

7.3

Boarding

7.9

Entertainment

7.7

Overall

7.6

Comfort

7.6

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,June 2026

MNL - HKG

Cathay Pacific used to be a great airline for travel to Asia. Having travelled with this carrier many times I've noticed a decline the food quality, seat pitch, and entertainment offering. The services still remains top notch as can be said with other carriers in this class (i.e. Emirates, Singapore Airlines, etc.)
Cathay Pacific
7.6
Good
1,436 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Food

7.3

Boarding

7.9

Entertainment

7.7

Overall

7.6

Comfort

7.6

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,June 2026

MNL - HKG

Cathay Pacific used to be a great airline for travel to Asia. Having travelled with this carrier many times I've noticed a decline the food quality, seat pitch, and entertainment offering. The services still remains top notch as can be said with other carriers in this class (i.e. Emirates, Singapore Airlines, etc.)
Qatar Airways
7.4
Good
3,736 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Food

7.3

Boarding

7.9

Entertainment

7.7

Overall

7.6

Comfort

7.6

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,June 2026

MNL - HKG

Cathay Pacific used to be a great airline for travel to Asia. Having travelled with this carrier many times I've noticed a decline the food quality, seat pitch, and entertainment offering. The services still remains top notch as can be said with other carriers in this class (i.e. Emirates, Singapore Airlines, etc.)
China Southern
7.4
Good
168 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Food

7.3

Boarding

7.9

Entertainment

7.7

Overall

7.6

Comfort

7.6

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,June 2026

MNL - HKG

Cathay Pacific used to be a great airline for travel to Asia. Having travelled with this carrier many times I've noticed a decline the food quality, seat pitch, and entertainment offering. The services still remains top notch as can be said with other carriers in this class (i.e. Emirates, Singapore Airlines, etc.)
Etihad Airways
7.3
Good
1,498 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Food

7.3

Boarding

7.9

Entertainment

7.7

Overall

7.6

Comfort

7.6

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,June 2026

MNL - HKG

Cathay Pacific used to be a great airline for travel to Asia. Having travelled with this carrier many times I've noticed a decline the food quality, seat pitch, and entertainment offering. The services still remains top notch as can be said with other carriers in this class (i.e. Emirates, Singapore Airlines, etc.)
China Eastern
7.3
Good
230 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Food

7.3

Boarding

7.9

Entertainment

7.7

Overall

7.6

Comfort

7.6

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,June 2026

MNL - HKG

Cathay Pacific used to be a great airline for travel to Asia. Having travelled with this carrier many times I've noticed a decline the food quality, seat pitch, and entertainment offering. The services still remains top notch as can be said with other carriers in this class (i.e. Emirates, Singapore Airlines, etc.)

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 22h 20m. China Eastern provides one of the quickest options available for as low as $1,854. There are 17008 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 AirAsia X, which is currently one of the cheapest options available, starting at $577. Air China flights start at $610 while deals on Tianjin Airlines start at $688 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 $2,796. While the most popular route (London Heathrow - Sydney Kingsford Smith) can be booked for $1,257 on average, our data indicates $3,112 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, May is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $1,723). Flying from United Kingdom to Sydney in December is currently the most expensive (average of $2,726). 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
Penrith
Katoomba
Manly
Lithgow
Cronulla
Randwick
Terrigal
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$1,187Average$2,227FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China SouthernCheapest$1,222Average$1,600FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,247Average$1,515FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest$1,434Average$2,705FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Qantas AirwaysCheapest$1,461Average$2,373FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Etihad AirwaysCheapest$1,482Average$2,142FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,485Average$2,173FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Malaysia AirlinesCheapest$1,674Average$2,673FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest$1,694Average$2,412FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EmiratesCheapest$1,714Average$2,155FlexibilityNo cancel feeOn-time75%
Search Emirates 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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