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Cheap flights from Sydney to the United Kingdom from £336

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
5 May — 12 May1
1 adult

Cheap 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 30 April 2025.

Round-trip from

£698

One-way from

£336

Popular in

December

Cheapest in

October

Average price

£925

Good round-trip deal

£1,160 or less

Good one-way deal

£666 or less
China Southern
  • China Southern
  • 14/6-21/6
  • 2 total stops
  • 78h 15m total
  • Sydney to United Kingdom
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15/10
  • 15/10
  • 3 total stops
  • 55h 45m total
  • Sydney to United Kingdom
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£92 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Sydney Kingsford Smith to United Kingdom.
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Price to beat on a one-way flight from Sydney Kingsford Smith to United Kingdom.
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Find flight deals from Sydney to United Kingdom

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 30 April 2025.

Sat 14/610:15SYD - LHR
1 stop41h 45mChina Southern
Sat 21/622:10LHR - SYD
1 stop36h 30mChina Southern
Deal found 30/4£698
Fri 23/520:30SYD - LGW
1 stop27h 30mChina Eastern
Fri 20/618:40LGW - SYD
1 stop29h 20mChina Eastern
Deal found 30/4£698
Tue 27/511:00SYD - LHR
1 stop40h 40mChina Eastern
Tue 3/621:20LHR - SYD
3 stops50h 10mChina Eastern
Deal found 29/4£699
Tue 14/1022:15SYD - LGW
1 stop42h 50mChina Southern
Tue 18/1120:20LGW - SYD
2 stops37h 00mChina Southern
Deal found 30/4£701
Tue 14/1020:40SYD - LGW
2 stops44h 15mAir China
Thu 30/1011:40LGW - SYD
2 stops40h 50mAir China
Deal found 29/4£702
Tue 20/521:30SYD - LHR
1 stop30h 15mEtihad Airways
Sat 24/521:45LHR - SYD
1 stop34h 10mEtihad Airways
Deal found 29/4£702
Tue 11/1121:40SYD - LGW
2 stops46h 40mTurkish Airlines
Tue 18/1106:00LGW - SYD
2 stops26h 45mTurkish Airlines
Deal found 29/4£703
Thu 7/819:40SYD - LHR
1 stop31h 05mAir China
Fri 5/920:25LHR - SYD
1 stop33h 25mAir China
Deal found 30/4£709
Thu 9/1022:10SYD - LHR
1 stop28h 25mMalaysia Airlines
Thu 30/1021:25LHR - SYD
1 stop23h 30mMalaysia Airlines
Deal found 29/4£711
Thu 22/521:00SYD - LHR
2 stops31h 30mMultiple Airlines
Fri 6/622:40LHR - SYD
1 stop31h 10mMultiple Airlines
Deal found 28/4£714
Mon 9/606:00SYD - LGW
2 stops33h 40mMultiple Airlines
Mon 16/611:35LGW - SYD
1 stop40h 00mMultiple Airlines
Deal found 29/4£720
Tue 20/507:40SYD - LHR
1 stop45h 55mCathay Pacific
Fri 20/618:20LHR - SYD
1 stop31h 30mCathay Pacific
Deal found 30/4£729

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 858,174 searches. Data last updated 30 April 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 - LHR

SYDLHR

Sydney Kingsford Smith

Sat 14/6

10:15-19:00

1 stop41h 45m

London Heathrow

Sat 21/6

22:10-19:40

1 stop36h 30m

£698

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 23/5

20:30-15:00

1 stop27h 30m

London Gatwick

Fri 20/6

18:40-09:00

1 stop29h 20m

£698

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 27/5

11:00-18:40

1 stop40h 40m

London Heathrow

Tue 3/6

21:20-08:30

3 stops50h 10m

£699

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 14/10

22:15-07:05

1 stop42h 50m

London Gatwick

Tue 18/11

20:20-20:20

2 stops37h 00m

£701

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 14/10

20:40-06:55

2 stops44h 15m

London Gatwick

Thu 30/10

11:40-15:30

2 stops40h 50m

£702

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 20/5

21:30-18:45

1 stop30h 15m

London Heathrow

Sat 24/5

21:45-16:55

1 stop34h 10m

£702

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 7/8

19:40-17:45

1 stop31h 05m

London Heathrow

Fri 5/9

20:25-14:50

1 stop33h 25m

£709

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 9/10

22:10-16:35

1 stop28h 25m

London Heathrow

Thu 30/10

21:25-07:55

1 stop23h 30m

£711

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 22/5

21:00-19:30

2 stops31h 30m

London Heathrow

Fri 6/6

22:40-14:50

1 stop31h 10m

£714

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 30/7

20:55-16:15

2 stops28h 20m

London Gatwick

Wed 20/8

10:55-19:00

2 stops47h 05m

£717

Flights are sorted by cheapest return flights first.

Deals found on 28/4

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, January is the cheapest month in which you can book a flight from Sydney to United Kingdom (average of £112). Flying from Sydney to United Kingdom in August is currently the most expensive (average of £164). 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 30 April 2025.

When flying from Sydney to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 30 April 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).

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 30 April 2025.
Get a feel of what it's like to fly with Japan Airlines, China Airlines and Hainan Airlines from Sydney to United Kingdom by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Crew

8.7

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Japan Airlines
8.3
Very Good
1,459 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Crew

8.7

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
China Airlines
8.3
Very Good
732 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Crew

8.7

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Hainan Airlines
8.1
Very Good
38 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Crew

8.7

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Garuda Indonesia
8.1
Very Good
72 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Crew

8.7

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Singapore Airlines
8.1
Very Good
1,292 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Crew

8.7

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

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), located 4.6 mi from the city center, is the airport you fly out of when you book flights from Sydney to United Kingdom.

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

    The cheapest airline one-way is Hainan Airlines, with whom users have recently found tickets for as low as £337. However, be on the lookout for offers from Air China and China Southern, 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 route from Sydney to United Kingdom is Sydney Kingsford Smith - London Heathrow. You may also consider Sydney Kingsford Smith - London Gatwick or Sydney Kingsford Smith - London Stansted.

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

    Looking for the cheapest flight from Sydney to United Kingdom? While on average our users pay £958, our data indicates the cheapest price to be £636. The most popular route (Sydney Kingsford Smith - London Heathrow), is priced around £636.

  • 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, January is the cheapest month in which you can book a flight from Sydney to United Kingdom (average of £112). Flying from Sydney to United Kingdom in August is currently the most expensive (average of £164). 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 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£599Average£1,014FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£618Average£849FlexibilityNo cancel feeOn-time67%
Search Air China flights
China AirlinesCheapest£675Average£939FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
China EasternCheapest£682Average£1,151FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest£708Average£845FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£723Average£1,009FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest£724Average£1,227FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Turkish AirlinesCheapest£731Average£996FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Cathay PacificCheapest£742Average£1,197FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Singapore AirlinesCheapest£764Average£969FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to United Kingdom flexibly with Cheapflights today.

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Not ready to book yet? You can track prices for flights from Sydney to United Kingdom on Cheapflights with our Price Alert feature and get notified when better prices are available.

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