£317 Cheap flights to Sydney
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Sydney departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from the United Kingdom to Sydney
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Recent direct flight deals from the United Kingdom to Sydney
See travel insights to Sydney from
Sydney flights insights and trends
Explore insights for your Sydney flight to craft the best travel plan
What is the cheapest month to fly to Sydney?
In general, May is the cheapest month to fly from United Kingdom to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £780. If you don’t want to visit Sydney in May, then you should wait until March to fly from United Kingdom, when ticket prices are also cheap, with an average price of £803.
What is the absolute cheapest flight to Sydney?
In the past two weeks, users have booked deals to Sydney for £52/person, which is 43% cheaper than the average flight to Sydney. To find the cheapest price to Sydney from your area, use momondo’s Airport-to-Airport Pricing Tool.
See prices from:
What is the cheapest day to depart on your flight to Sydney?
The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,105. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,271.
What is the cheapest time of day to depart on your flight to Sydney?
According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from United Kingdom to Sydney in the afternoon for as low as £891. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Sydney, so prices are often more expensive at around £1,206 per ticket.
Cheapest flights to Sydney Kingsford Smith
Find the cheapest flights to Sydney Kingsford Smith from your nearest city or airport
| CHEAPEST MONTH TO FLY TO SYDNEY FROM LONDON HEATHROW AIRPORT | March | 27% cheaper | Flying from London Heathrow Airport to Sydney costs on average just £708 in March |
| MOST EXPENSIVE MONTH TO FLY TO SYDNEY FROM LONDON HEATHROW AIRPORT | December | 32% more expensive | It costs about £1,279 for flights to Sydney from London Heathrow Airport in December |
| MOST POPULAR MONTH TO FLY TO SYDNEY FROM LONDON HEATHROW AIRPORT | December | 295% more users visited | More momondo users searched in flights to Sydney from London Heathrow Airport in December than any other month |
Cheap Sydney flight deals and tips
Summary info about Sydney flight prices, duration and airlines
Best One-Way Price | £317 |
|---|---|
Best Round-Trip Price | £508 |
Fastest flight time | 35h 40m |
Popular in | December |
Frequently asked questions about flying to Sydney
What is there to do in Sydney when it’s raining?
Users planning a flight to Sydney during the months of March or June should anticipate rain. There are still things to do in Sydney even when it's raining, though. For those looking to get out of the rain and do a little shopping, check out The Intersection Paddington.
How far in advance should I book a flight to Sydney?
The ideal time to book your flight to Sydney is 36 days in advance, when prices tend to average £944. Keep in mind that you might also find cheap flights to Sydney outside of this time window. In fact, momondo users recently found flights from United Kingdom to Sydney for £869.
Is there an alternative airport near Sydney?
Newcastle Williamtown Airport or Bathurst Raglan Airport can be an alternative airport used for travel to Sydney.
Is there a cheaper alternative to flying into Sydney?
The cheapest airport near Sydney is typically Newcastle Williamtown Airport, with an average price of £90/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.
When did momondo last update prices for flights to Sydney Kingsford Smith Airport?
Prices for flights to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights to Sydney Kingsford Smith Airport?
There are 53 operators available for flights to Sydney Kingsford Smith Airport as of June 2025.
How old do you have to be to fly to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Travelling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal to Sydney?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Sydney. Millions of users trust and use momondo every year so you are in good company.
Can I find flights to Sydney with flexible booking policies on momondo?
Flights to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights to Sydney?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Sydney.
I’m not ready to book a flight to Sydney right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Sydney. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.
Get notified when prices go down
Daily price changes in your inbox - only with Price Alerts.
Find better results for your trip to Sydney
Popular Flights to Sydney
Popular routes according to searches in the past day on momondo
Cheapest flight routes to Sydney Kingsford Smith
These routes have the cheapest flights to Sydney Kingsford Smith found by momondo users in United Kingdom
| Departing | Destination | Best Time | Best Price |
|---|---|---|---|
| London | Sydney | 24h 00m | £604 |
| Manchester | Sydney | 23h 35m | £689 |
| Edinburgh | Sydney | 23h 45m | £745 |
| Birmingham | Sydney | 30h 20m | £775 |
| Glasgow | Sydney | 27h 10m | £778 |
| Newcastle upon Tyne | Sydney | 27h 00m | £804 |
| Bristol | Sydney | 32h 25m | £942 |
| Belfast | Sydney | 24h 50m | £996 |
| Leeds | Sydney | 27h 45m | £1,134 |
| Aberdeen | Sydney | 32h 45m | £1,140 |
| Liverpool | Sydney | 28h 30m | £1,170 |
| Southampton | Sydney | 34h 20m | £1,259 |
| Grimsby | Sydney | 41h 50m | £1,271 |
| Norwich | Sydney | 31h 10m | £1,342 |
| Cardiff | Sydney | 35h 25m | £1,442 |
| Exeter | Sydney | 26h 15m | £1,481 |
| Doncaster | Sydney | 39h 35m | £2,472 |