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Cheap flights from the United Kingdom to Australia from £399

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Australia

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Australia
Explore the most affordable flight options available from United Kingdom to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 April 2026.

Sat 9/514:45
LHR
-
SYD
1 stop30h 25m
Etihad Airways
Wed 13/515:40
SYD
-
LHR
1 stop30h 05m
Etihad Airways
Deal found 29/3£740
Wed 28/1010:30
LGW
-
SYD
1 stop40h 05m
China Eastern
Wed 18/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 28/3£741
Sun 31/509:30
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Thu 4/621:30
SYD
-
LHR
1 stop30h 15m
Etihad Airways
Deal found 30/3£741
Thu 29/1009:25
LGW
-
SYD
2 stops36h 50m
Multiple Airlines
Tue 3/1114:20
SYD
-
LGW
2 stops38h 45m
Multiple Airlines
Deal found 28/3£742
Mon 27/409:15
LHR
-
SYD
1 stop22h 35m
Etihad Airways
Mon 4/520:50
SYD
-
LHR
1 stop30h 55m
Etihad Airways
Deal found 27/3£742
Mon 2/1110:30
LGW
-
SYD
1 stop40h 05m
China Eastern
Mon 16/1112:00
SYD
-
LGW
1 stop29h 30m
China Eastern
Deal found 27/3£743
Thu 9/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Fri 1/520:50
SYD
-
LHR
1 stop27h 15m
Etihad Airways
Deal found 1/4£743
Tue 14/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Tue 12/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Deal found 27/3£743
Wed 21/1011:35
LGW
-
SYD
3 stops35h 25m
China Eastern
Wed 18/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 31/3£744
Mon 9/1121:30
LHR
-
SYD
2 stops48h 55m
China Southern
Sun 22/1122:10
SYD
-
LHR
2 stops31h 25m
China Southern
Deal found 30/3£744
Tue 8/911:35
LGW
-
SYD
2 stops35h 25m
Multiple Airlines
Tue 15/920:50
SYD
-
LGW
2 stops43h 40m
Multiple Airlines
Deal found 29/3£745
Mon 2/1121:30
LHR
-
SYD
2 stops35h 50m
China Southern
Mon 9/1111:25
SYD
-
LHR
1 stop42h 10m
China Southern
Deal found 30/3£745

Find flight deals from United Kingdom to Australia

Keep the following information in mind while searching for United Kingdom to Australia flight deals. Data was last updated 2 April 2026.

Round-trip from

£740

One-way from

£399

Popular in

December

Cheapest in

May

Average price

£974

Good round-trip deal

£1,124 or less

Good one-way deal

£728 or less
Etihad Airways
  • Etihad Airways
  • 9/5-13/5
  • 2 total stops
  • 60h 30m total
  • United Kingdom to Australia
Search Deals
Air China
  • Air China
  • 11/5
  • 1 total stop
  • 31h 15m total
  • United Kingdom to Australia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£65 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Australia.
Search Deals
Price to beat on a one-way flight from United Kingdom to Australia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Australia 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 2 April 2026.
Use the filters below to find and compare flights from the United Kingdom to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 17/5

14:45-06:10

1 stop30h 25m

Sydney Kingsford Smith

Fri 12/6

21:30-12:45

1 stop24h 15m

£746

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Fri 18/9

10:25-05:00

1 stop33h 35m

Melbourne

Fri 2/10

06:15-07:25

1 stop34h 10m

£796

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Fri 18/9

10:25-05:00

1 stop33h 35m

Melbourne

Sun 18/10

06:15-07:25

1 stop35h 10m

£821

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 19/4

09:15-16:50

1 stop22h 35m

Sydney Kingsford Smith

Sat 2/5

20:50-07:00

1 stop43h 10m

£830

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Fri 25/9

10:25-05:00

1 stop33h 35m

Melbourne

Sat 10/10

06:15-07:25

1 stop35h 10m

£831

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Tue 4/8

10:25-23:15

1 stop27h 50m

Melbourne

Tue 20/10

01:30-07:30

1 stop40h 00m

£871

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Tue 8/9

18:00-09:00

1 stop30h 00m

Melbourne

Tue 13/10

22:30-15:00

1 stop26h 30m

£918

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Thu 10/9

11:35-09:00

1 stop36h 25m

Melbourne

Sat 17/10

12:00-06:40

1 stop28h 40m

£921

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Tue 21/4

18:00-12:40

1 stop33h 40m

Melbourne

Sat 25/7

11:00-15:00

1 stop37h 00m

£945

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 14/9

11:35-12:35

1 stop40h 00m

Sydney Kingsford Smith

Mon 12/10

12:00-06:40

1 stop28h 40m

£953

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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6

Best time to book a flight from United Kingdom to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, June is the cheapest month in which you can book a flight from United Kingdom to Australia (average of £508). Flying from United Kingdom to Australia in July is currently the most expensive (average of £752). 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 AU?

Find hourly flight availability from United Kingdom to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 April 2026.

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

How often are flights from the United Kingdom to Australia delayed?

About 22% of weekly flights between United Kingdom and Australia have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for the United Kingdom to Australia flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Australia flights?

Over the past year, Qantas Airways have had the lowest number of delays on this route, with just 22% of flights being delayed.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated 2 April 2026.
See what other customers who have flown with Singapore Airlines,Emirates, andCathay Pacific from the United Kingdom to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,486 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Singapore Airlines
8.2
Very Good
1,486 reviews
Singapore Airlines
8.2
Very Good
1,486 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Emirates
8.1
Very Good
3,551 reviews
Singapore Airlines
8.2
Very Good
1,486 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Cathay Pacific
7.6
Good
1,239 reviews
Singapore Airlines
8.2
Very Good
1,486 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Qantas Airways
7.5
Good
1,016 reviews
Singapore Airlines
8.2
Very Good
1,486 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Qatar Airways
7.4
Good
3,732 reviews
Singapore Airlines
8.2
Very Good
1,486 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Related info for your journey

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

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

    Etihad Airways, AirAsia X, and China Eastern can get you from United Kingdom to Australia in just under 30h. Your travel time can differ by up to 3h 35m. The distance from United Kingdom to Australia is about 10493 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    £285 is the cheapest one-way deal found within the past few days, from AirAsia X. You may also be able to find cheap deals on SWISS and Beijing Capital Airlines, with prices starting from £304 and £314, respectively.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from United Kingdom to Australia (average of £508). Flying from United Kingdom to Australia in July is currently the most expensive (average of £752). 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

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.

Alternative routes for United Kingdom to Australia

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 Australia

Discover the top 10 airlines that operate flights from United Kingdom to Australia. 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
AirAsiaCheapest£134Average£179FlexibilityNo cancel feeOn-time66%
Search AirAsia flights
Hainan AirlinesCheapest£206Average£722FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air ChinaCheapest£392Average£915FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£474Average£938FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Oman AirCheapest£500Average£1,357FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
American AirlinesCheapest£536Average£1,098FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£551Average£1,492FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IndiGoCheapest£623Average£964FlexibilityNo cancel feeOn-time80%
Search IndiGo flights
Royal Brunei AirlinesCheapest£672Average£819FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Juneyao AirlinesCheapest£674Average£1,020FlexibilityNo cancel feeOn-time66%
Search Juneyao 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 United Kingdom to Australia?

When you search for this flight from United Kingdom to Australia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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

Need flexible booking options for your flight to Australia from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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