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Cheap flights from London, ON to Australia from C$ 2,323

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SYD
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to Australia

Enter your travel dates to find the best prices.

Cheapest flights from London to Australia
Explore the most affordable flight options available from London to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 November 2025.

Thu 11/129:25 a.m.YXU - SYD
2 stops29h 35mUnited Airlines
Thu 18/1212:10 p.m.SYD - YXU
2 stops36h 36mUnited Airlines
Deal found 18/11C$ 3,116
Thu 11/129:25 a.m.YXU - SYD
3 stops29h 30mAir Canada
Thu 18/124:00 p.m.SYD - YXU
2 stops32h 46mAir Canada
Deal found 18/11C$ 3,159

Cheap flight deals from London to Australia

Keep the following information in mind while searching for London to Australia flight deals. Data was last updated 18 November 2025.

Round-trip from

C$ 2,323

Popular in

July

Cheapest in

February

Average price

C$ 2,370
Air Canada
  • Air Canada
  • 7/3-11/3
  • 4 total stops
  • 72h 56m total
  • London to Australia
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 622 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 138 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London 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 629,999 searches. Data last updated 18 November 2025.
Use the filters below to find and compare flights from London to Australia that are best for you.

Fly from

London

Fly to

Australia

Route

Depart

Return

Price

LondonSydney

YXU - SYD

YXUSYD

London

Sat 7/3

5:40 p.m.-8:35 a.m.

2 stops46h 55m

Sydney Kingsford Smith

Wed 11/3

10:20 a.m.-9:21 p.m.

2 stops26h 01m

C$ 2,323

LondonSydney

YXU - SYD

YXUSYD

London

Tue 10/2

9:25 a.m.-9:35 a.m.

2 stops32h 10m

Sydney Kingsford Smith

Sat 28/2

11:20 a.m.-8:46 a.m.

2 stops37h 26m

C$ 2,389

LondonBrisbane

YXU - BNE

YXUBNE

London

Thu 19/3

5:10 a.m.-7:45 a.m.

2 stops36h 35m

Brisbane

Mon 23/3

9:45 a.m.-8:46 a.m.

2 stops37h 01m

C$ 2,405

LondonSydney

YXU - SYD

YXUSYD

London

Sat 7/3

5:40 p.m.-7:00 a.m.

2 stops45h 20m

Sydney Kingsford Smith

Wed 11/3

12:10 p.m.-5:05 p.m.

2 stops43h 55m

C$ 2,758

LondonSydney

YXU - SYD

YXUSYD

London

Thu 11/12

9:25 a.m.-7:00 a.m.

2 stops29h 35m

Sydney Kingsford Smith

Thu 18/12

12:10 p.m.-8:46 a.m.

2 stops36h 36m

C$ 3,116

LondonSydney

YXU - SYD

YXUSYD

London

Thu 11/12

9:25 a.m.-6:55 a.m.

3 stops29h 30m

Sydney Kingsford Smith

Thu 18/12

4:00 p.m.-8:46 a.m.

2 stops32h 46m

C$ 3,159

LondonBrisbane

YXU - BNE

YXUBNE

London

Thu 19/3

9:25 a.m.-10:40 p.m.

2 stops47h 15m

Brisbane

Sun 22/3

1:55 a.m.-5:05 p.m.

2 stops53h 10m

C$ 3,654

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/11

Best time to book a flight from London to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from London with our price prediction graph.
Estimated round-trip 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 London to Australia

What is the cheapest month to book a flight from London, Ontario to Australia?

Currently, September is the cheapest month in which you can book a flight from London, Ontario to Australia (average of C$ 310). Flying from London, Ontario to Australia in November is currently the most expensive (average of C$ 1,088). 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.

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 18 November 2025.
Read reviews from past customers who have flown Air Canada from London to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,462 reviews
Check prices

Boarding

7.3

Comfort

7.1

Crew

7.8

Food

6.3

Overall

7.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,462 reviews
Air Canada
7.1
Good
10,462 reviews
Check prices

Boarding

7.3

Comfort

7.1

Crew

7.8

Food

6.3

Overall

7.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

Related info for your journey

Find useful and relevant information for your journey from London to Australia. 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 London to Australia?

    London (YXU), located 8.6 km from the city centre, is the airport you fly out of when you book flights from London to Australia.

  • How long is the flight from London, Ontario to Australia?

    Departing from London, Ontario to Australia will take you 46h 55m. The distance between London, Ontario and Australia is about 15416 km. This flight may include one or multiple stops.

  • What are the most popular routes from London, Ontario to Australia?

    While some choose either London - Brisbane or London - Townsville, London - Sydney Kingsford Smith is the most popular route from London, Ontario to Australia.

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

    Yes. In addition to deals on London to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Australia?

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

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

    Yes. Cheapflights offers flight deals from London 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 London, Ontario to Australia?

    Currently, September is the cheapest month in which you can book a flight from London, Ontario to Australia (average of C$ 310). Flying from London, Ontario to Australia in November is currently the most expensive (average of C$ 1,088). 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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Top airline flying from London to Australia

Discover the top airline that operate flights from London 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 629,999 searches. Data last updated 18 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,879AverageC$ 2,714FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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How does Cheapflights help users find flights from London to Australia?

Cheapflights makes it easy to find London to Australia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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Can Cheapflights find flights from London to Australia with no change fees?

Need flexible booking options for your flight to Australia from London? 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 London to Australia become cheaper?

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