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Cheap flights from Sydney to the United Kingdom from $593

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
30 mar. — 6 apr.1
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 25 marts 2025.

Round-trip from

$1,417

One-way from

$593

Popular in

December

Cheapest in

October

Average price

$1,694

Good round-trip deal

$2,044 or less

Good one-way deal

$1,437 or less
Air China
  • Air China
  • 17/6-7/9
  • 2 total stops
  • 62h 15m total
  • Sydney to United Kingdom
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15/6
  • 15/6
  • 3 total stops
  • 42h 55m total
  • Sydney to United Kingdom
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($410 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($104 potential savings vs. average return price).
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Average for round-trip flights in March 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 25 marts 2025.

tir. 17/619:40SYD - LHR
1 stop31h 05mAir China
søn. 7/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 24/3$1,417
man. 19/511:20SYD - LGW
2 stops60h 40mChina Eastern
fre. 30/518:40LGW - SYD
2 stops52h 00mChina Eastern
Deal found 24/3$1,417
tor. 22/511:00SYD - LHR
1 stop40h 40mChina Eastern
fre. 13/621:20LHR - SYD
1 stop30h 15mChina Eastern
Deal found 24/3$1,420
fre. 6/621:45SYD - LGW
2 stops29h 45mChina Southern
tir. 24/621:30LGW - SYD
2 stops37h 10mChina Southern
Deal found 24/3$1,427
fre. 9/510:05SYD - LHR
1 stop41h 55mChina Southern
tir. 13/522:10LHR - SYD
1 stop25h 15mChina Southern
Deal found 25/3$1,451
fre. 23/520:30SYD - LGW
1 stop27h 30mMultiple Airlines
søn. 25/511:35LGW - SYD
2 stops45h 30mMultiple Airlines
Deal found 24/3$1,463
tor. 1/519:20SYD - BHX
1 stop31h 55mAir India
man. 12/520:15BHX - SYD
1 stop36h 35mAir India
Deal found 25/3$1,467
lør. 4/1019:40SYD - LGW
2 stops44h 15mAir China
man. 27/1011:40LGW - SYD
2 stops40h 50mAir China
Deal found 23/3$1,475
man. 2/622:10SYD - LHR
1 stop27h 25mMalaysia Airlines
ons. 20/821:35LHR - SYD
1 stop27h 25mMalaysia Airlines
Deal found 25/3$1,489
ons. 1/1020:55SYD - LGW
2 stops46h 00mTurkish Airlines
tir. 28/1016:55LGW - SYD
2 stops39h 40mTurkish Airlines
Deal found 25/3$1,502
ons. 14/512:00SYD - LHR
2 stops38h 45mMultiple Airlines
ons. 28/522:40LHR - SYD
2 stops34h 45mMultiple Airlines
Deal found 25/3$1,514
søn. 2/1121:15SYD - BHX
2 stops47h 50mTurkish Airlines
søn. 23/1116:50BHX - SYD
2 stops39h 45mTurkish Airlines
Deal found 25/3$1,537

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 25 marts 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

tir. 17/6

19:40-17:45

1 stop31h 05m

London Heathrow

søn. 7/9

22:40-14:50

1 stop31h 10m

$1,417

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

man. 19/5

11:20-15:00

2 stops60h 40m

London Gatwick

fre. 30/5

18:40-07:40

2 stops52h 00m

$1,417

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

tor. 22/5

11:00-18:40

1 stop40h 40m

London Heathrow

fre. 13/6

21:20-12:35

1 stop30h 15m

$1,420

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

fre. 6/6

21:45-18:30

2 stops29h 45m

London Gatwick

tir. 24/6

21:30-19:40

2 stops37h 10m

$1,427

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

tor. 15/5

06:00-06:40

2 stops33h 40m

London Gatwick

tir. 27/5

18:00-07:40

2 stops28h 40m

$1,451

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

fre. 9/5

10:05-19:00

1 stop41h 55m

London Heathrow

tir. 13/5

22:10-08:25

1 stop25h 15m

$1,451

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

man. 2/6

22:10-16:35

1 stop27h 25m

London Heathrow

ons. 20/8

21:35-10:00

1 stop27h 25m

$1,489

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

ons. 14/5

12:00-17:45

2 stops38h 45m

London Heathrow

ons. 28/5

22:40-18:25

2 stops34h 45m

$1,514

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

tir. 13/5

21:00-19:30

1 stop31h 30m

London Heathrow

man. 2/6

22:00-14:15

2 stops55h 15m

$1,568

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

tir. 17/6

08:55-19:55

1 stop44h 00m

London Heathrow

ons. 25/6

09:20-06:20

1 stop36h 00m

$1,580

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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, October is the cheapest month in which you can book a flight from Sydney to United Kingdom (average of $1,037). Flying from Sydney to United Kingdom in December is currently the most expensive (average of $1,667). 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 25 marts 2025.

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

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 25 marts 2025.
Read through reviews of airlines operating flights from Sydney to United Kingdom, such as Korean Air, Japan Airlines and China Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,047 reviews
Check prices

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,047 reviews
Korean Air
8.4
Very Good
1,047 reviews
Check prices

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very Good
1,440 reviews
Korean Air
8.4
Very Good
1,047 reviews
Check prices

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.2
Very Good
722 reviews
Korean Air
8.4
Very Good
1,047 reviews
Check prices

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very Good
1,284 reviews
Korean Air
8.4
Very Good
1,047 reviews
Check prices

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.0
Very Good
3,190 reviews
Korean Air
8.4
Very Good
1,047 reviews
Check prices

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • 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 $655. 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 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 $1,378. On average you can expect to pay $8,980. The most popular route, (Sydney Kingsford Smith - London Heathrow), can usually be booked for $1,328.

  • 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, October is the cheapest month in which you can book a flight from Sydney to United Kingdom (average of $1,037). Flying from Sydney to United Kingdom in December is currently the most expensive (average of $1,667). 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 25 marts 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$873Average$2,531FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Air ChinaCheapest$1,024Average$1,330FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest$1,351Average$1,759FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,404Average$1,938FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
China AirlinesCheapest$1,435Average$1,792FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Hainan AirlinesCheapest$1,435Average$1,881FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Turkish AirlinesCheapest$1,467Average$1,844FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
SriLankan AirlinesCheapest$1,487Average$1,721FlexibilityNo cancel feeOn-time68%
Search SriLankan Airlines flights
Vietnam AirlinesCheapest$1,527Average$2,000FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Japan AirlinesCheapest$1,527Average$2,154FlexibilityNo cancel feeOn-time79%
Search Japan Airlines 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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