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Cheap flights from Sydney to the United Kingdom from $663

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to United Kingdom
Explore the most affordable flight options available from Sydney to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 December 2025.

Tue 2/1217:45SYD - LHR
3 stops60h 35mMultiple Airlines
Sat 6/1220:25LHR - SYD
1 stop32h 05mMultiple Airlines
Deal found 1/12$1,708
Tue 2/1208:45SYD - LHR
1 stop31h 40mCathay Pacific
Sat 6/1217:50LHR - SYD
1 stop26h 25mCathay Pacific
Deal found 1/12$1,746
Sat 27/1212:00SYD - LGW
1 stop37h 00mChina Eastern
Sat 10/110:30LGW - SYD
3 stops37h 30mChina Eastern
Deal found 1/12$1,782
Sun 7/1221:00SYD - LHR
2 stops31h 55mHainan Airlines
Wed 10/1219:45LHR - SYD
1 stop32h 35mHainan Airlines
Deal found 2/12$1,820
Thu 11/1221:00SYD - LHR
2 stops31h 35mHainan Airlines
Sun 21/1221:15LHR - SYD
1 stop30h 40mHainan Airlines
Deal found 1/12$1,821
Sun 14/1221:00SYD - LHR
2 stops31h 55mHainan Airlines
Wed 24/1219:45LHR - SYD
1 stop32h 35mHainan Airlines
Deal found 2/12$1,831
Wed 3/1208:45SYD - LHR
1 stop31h 40mCathay Pacific
Sun 7/1211:00LHR - SYD
1 stop22h 50mCathay Pacific
Deal found 2/12$1,882
Sat 27/1212:00SYD - LGW
1 stop37h 00mChina Eastern
Sun 11/110:30LGW - SYD
1 stop40h 05mChina Eastern
Deal found 3/12$1,882
Sun 14/1221:00SYD - LHR
2 stops31h 55mHainan Airlines
Mon 29/1221:00LHR - SYD
2 stops31h 20mHainan Airlines
Deal found 3/12$1,885
Sun 7/1217:20SYD - LHR
1 stop36h 50mSriLankan Airlines
Sun 14/1220:40LHR - SYD
1 stop32h 10mSriLankan Airlines
Deal found 2/12$1,888
Tue 2/1215:50SYD - LGW
1 stop25h 05mQatar Airways
Tue 9/1214:05LGW - SYD
1 stop29h 45mQatar Airways
Deal found 1/12$1,891
Thu 4/1211:20SYD - LHR
1 stop36h 00mAmerican Airlines
Tue 20/116:55LHR - SYD
1 stop29h 05mAmerican Airlines
Deal found 3/12$1,896

Find flight deals from Sydney to United Kingdom

Keep the following information in mind while searching for Sydney to United Kingdom flight deals. Data was last updated 4 December 2025.

Round-trip from

$1,548

One-way from

$663

Popular in

December

Cheapest in

February

Average price

$2,586

Good round-trip deal

$1,996 or less

Good one-way deal

$1,425 or less
18/2-4/3
  • 18/2-4/3
  • 3 total stops
  • 87h 15m total
  • Sydney to United Kingdom
Search Deals
21/1
  • 21/1
  • 3 total stops
  • 34h 45m total
  • Sydney to United Kingdom
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($412 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($98 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 Sydney Kingsford Smith to United Kingdom.
Search Deals
Price to beat on a one-way flight from Sydney Kingsford Smith to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to United Kingdom 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 December 2025.
Use the filters below to find and compare flights from Sydney to the United Kingdom that are best for you.

Fly from

Sydney

Fly to

United Kingdom

Route

Depart

Return

Price

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 19/2

14:25-09:20

2 stops29h 55m

London Gatwick

Thu 12/3

17:05-19:20

2 stops39h 15m

$1,592

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Mon 26/1

20:05-16:20

2 stops31h 15m

London Luton

Sun 8/2

08:05-22:30

2 stops27h 25m

$1,621

SydneyEdinburgh

SYD - EDI

SYDEDI

Sydney Kingsford Smith

Fri 20/3

21:15-10:00

2 stops47h 45m

Edinburgh Turnhouse

Mon 30/3

10:40-20:15

2 stops47h 35m

$1,629

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 27/2

21:15-14:10

2 stops27h 55m

London Heathrow

Thu 12/3

06:35-19:20

2 stops25h 45m

$1,635

SydneyBirmingham

SYD - BHX

SYDBHX

Sydney Kingsford Smith

Wed 29/4

21:10-08:50

2 stops44h 40m

Birmingham

Fri 15/5

17:15-19:15

2 stops41h 00m

$1,647

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Sun 1/2

15:50-12:00

2 stops31h 10m

London Luton

Thu 5/2

17:00-06:50

2 stops26h 50m

$1,650

SydneyManchester

SYD - MAN

SYDMAN

Sydney Kingsford Smith

Thu 5/3

21:45-06:10

1 stop43h 25m

Manchester

Sun 8/3

08:25-17:55

1 stop22h 30m

$1,683

SydneyManchester

SYD - MAN

SYDMAN

Sydney Kingsford Smith

Sun 18/1

20:40-20:05

2 stops34h 25m

Manchester

Sun 25/1

11:40-06:35

3 stops31h 55m

$1,711

SydneyManchester

SYD - MAN

SYDMAN

Sydney Kingsford Smith

Tue 3/2

15:50-07:05

1 stop26h 15m

Manchester

Wed 11/2

14:05-06:50

1 stop29h 45m

$1,726

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 30/5

09:30-18:50

1 stop42h 20m

London Heathrow

Tue 4/8

20:40-07:30

1 stop25h 50m

$1,738

Flights are sorted by cheapest return flights first.

Deals found on 2/12

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

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Sydney 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 Sydney to the United Kingdom

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

Currently, February is the cheapest month in which you can book a flight from Sydney to United Kingdom (average of $988). Flying from Sydney to United Kingdom in December is currently the most expensive (average of $1,868). 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 SYD to GB?

Find hourly flight availability from Sydney to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 December 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to United Kingdom at midday. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight in the afternoon.

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

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

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

Weekly flight availability from Sydney to United Kingdom

Explore weekly flight availability from Sydney to United Kingdom. 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 December 2025.

The most flights from SYD to GB0 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 United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 4 December 2025.
Read through reviews of airlines operating flights from Sydney to the United Kingdom, such as Emirates, Singapore Airlines, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,430 reviews
Check prices

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Emirates
8.1
Very Good
3,430 reviews
Emirates
8.1
Very Good
3,430 reviews
Check prices

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Singapore Airlines
8.1
Very Good
1,411 reviews
Emirates
8.1
Very Good
3,430 reviews
Check prices

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Qantas Airways
7.5
Good
947 reviews
Emirates
8.1
Very Good
3,430 reviews
Check prices

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Etihad Airways
7.4
Good
1,326 reviews
Emirates
8.1
Very Good
3,430 reviews
Check prices

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
China Eastern
7.2
Good
178 reviews
Emirates
8.1
Very Good
3,430 reviews
Check prices

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.

Related info for your journey

Find useful and relevant information for your journey from Sydney to United Kingdom. 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 from for flights from Sydney to United Kingdom?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to United Kingdom. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

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

    Departing from Sydney to United Kingdom will take you 26h 15m. Sydney and United Kingdom are separated by a distance of 17000 km. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Beijing Capital Airlines, with whom users have recently found tickets for as low as $491. However, be on the lookout for offers from Etihad Airways and Tianjin Airlines, as they are both options that can get you from Sydney to United Kingdom for a low price.

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

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

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

    The cheapest flight price from Sydney to United Kingdom is $1,186. On average you can expect to pay $7,949. The most popular route, (Sydney Kingsford Smith - London Heathrow), can usually be booked for $1,166.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to United Kingdom 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 Sydney to United Kingdom?

    Currently, February is the cheapest month in which you can book a flight from Sydney to United Kingdom (average of $988). Flying from Sydney to United Kingdom in December is currently the most expensive (average of $1,868). 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

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Alternative routes for Sydney to United Kingdom

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

Discover the top 10 airlines that operate flights from Sydney to United Kingdom. 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 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,148Average$1,465FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,161Average$1,715FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,206Average$2,033FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Juneyao AirlinesCheapest$1,280Average$1,837FlexibilityNo cancel feeOn-time66%
Search Juneyao Airlines flights
Air IndiaCheapest$1,289Average$1,689FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,339Average$1,781FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,351Average$1,822FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China AirlinesCheapest$1,412Average$1,687FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Japan AirlinesCheapest$1,463Average$1,952FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
LufthansaCheapest$1,475Average$2,066FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 Sydney to United Kingdom?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to United Kingdom from Sydney today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to United Kingdom 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 Sydney to United Kingdom with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to United Kingdom, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from Sydney to United Kingdom and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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