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Cheap flights from London, Ontario to Sydney from $3,652

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SYD
15 Jul — 22 Jul1
1 adult

Cheap flight deals from London to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 July 2025.

Round-trip from

$3,652

Popular in

July

Cheapest in

May

Average price

$3,686
WestJet
  • WestJet
  • 14/12-31/1
  • 4 total stops
  • 105h 17m total
  • London to Sydney
Highest demand for flights based on searches. 17% potential increase in price ($898 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($138 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from London to Sydney

Cheapest flights from London to Sydney
Explore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2025.

Sun 14/1220:00YXU - SYD
2 stops42h 35mWestJet
Sat 31/120:30SYD - YXU
2 stops62h 42mWestJet
Deal found 8/7$3,652

Cheapflights Fare Finder

Customise your flight search to find flights from London to Sydney 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 10 July 2025.
Use the filters below to find and compare flights from London to Sydney that are best for you.

Fly from

London

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

YXU - SYD

YXUSYD

London

Sun 14/12

20:00-06:35

2 stops42h 35m

Sydney Kingsford Smith

Sat 31/1

20:30-19:12

2 stops62h 42m

$3,652

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Best time to book a flight from London to Sydney

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

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

Currently, May is the cheapest month in which you can book a flight from London, Ontario to Sydney (average of $129). Flying from London, Ontario to Sydney in October is currently the most expensive (average of $171). 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 Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 10 July 2025.
Read reviews from past customers who have flown with WestJet from London to Sydney. 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.

Boarding

7.4

Food

6.2

Comfort

7.1

Entertainment

6.1

Overall

7.2

Crew

7.9

Reviews

1 / 20
4.0
Okay

Kim,May 2025

YEG - YYJ

Some of the crew weren't the most helpful or pleasant.

Boarding

7.4

Food

6.2

Comfort

7.1

Entertainment

6.1

Overall

7.2

Crew

7.9

Reviews

1 / 20
4.0
Okay

Kim,May 2025

YEG - YYJ

Some of the crew weren't the most helpful or pleasant.

Related info for your journey

Find useful and relevant information for your journey from London to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What is the cheapest airline to fly from London, Ontario to Sydney round-trip?

    WestJet, at $3,652, was found to be the cheapest airline from London, Ontario to Sydney..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Sydney 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 Sydney?

    Currently, May is the cheapest month in which you can book a flight from London, Ontario to Sydney (average of $129). Flying from London, Ontario to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Wollongong
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Manly
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Coogee
Cronulla
Terrigal
Lithgow
Randwick
Bondi Beach
Leura

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