$702 Find Cheap Flights from the United Kingdom to Sydney – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sydney departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from the United Kingdom to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from the United Kingdom to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from the United Kingdom to Sydney

Mon, 2 Nov - Mon, 16 Nov
Multiple Airlines Logo
13:40 - 08:05
NCL
-
SYD
31h 25m
2 stops
Multiple Airlines Logo
10:10 - 08:50
SYD
-
NCL
57h 40m
2 stops
$1,531Multiple Airlines
Thu, 10 Sep - Thu, 24 Sep
Air India Logo
21:30 - 19:05
BHX
-
SYD
36h 35m
1 stop
Air India Logo
20:35 - 18:15
SYD
-
BHX
30h 40m
1 stop
$1,550Air India
Thu, 10 Sep - Thu, 24 Sep
Air India Logo
21:30 - 19:05
BHX
-
SYD
36h 35m
1 stop
Air India Logo
20:35 - 18:15
SYD
-
BHX
30h 40m
1 stop
$1,554Air India
Wed, 9 Sep - Sun, 13 Sep
Multiple Airlines Logo
06:00 - 12:35
EDI
-
SYD
45h 35m
2 stops
Multiple Airlines Logo
20:30 - 20:30
SYD
-
EDI
33h 00m
2 stops
$1,590Multiple Airlines
Sat, 24 Oct - Sat, 7 Nov
China Southern Logo
22:10 - 09:25
LHR
-
SYD
25h 15m
1 stop
China Southern Logo
15:15 - 18:35
SYD
-
LHR
38h 20m
1 stop
$1,681China Southern
Tue, 1 Sep - Sat, 31 Oct
China Southern Logo
21:00 - 19:25
LHR
-
SYD
37h 25m
2 stops
China Southern Logo
11:25 - 14:00
SYD
-
LHR
37h 35m
2 stops
$1,681China Southern
Sat, 19 Sep - Sat, 26 Sep
China Eastern Logo
21:20 - 08:05
LHR
-
SYD
49h 45m
3 stops
China Eastern Logo
10:00 - 18:40
SYD
-
LHR
41h 40m
2 stops
$1,681China Eastern
Tue, 3 Nov - Wed, 25 Nov
China Eastern Logo
21:00 - 09:05
LHR
-
SYD
49h 05m
2 stops
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m
1 stop
$1,681China Eastern
Thu, 31 Dec - Mon, 25 Jan
Air China Logo
20:25 - 08:35
LHR
-
SYD
25h 10m
1 stop
Air China Logo
20:40 - 17:50
SYD
-
LHR
32h 10m
1 stop
$1,694Air China
Thu, 31 Dec - Tue, 26 Jan
Air China Logo
20:25 - 08:35
LHR
-
SYD
25h 10m
1 stop
Air China Logo
20:40 - 17:50
SYD
-
LHR
32h 10m
1 stop
$1,694Air China
Booking Insights

KAYAK's insights & trends for flights to Sydney

Get data-powered insights and trends into flights to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Sydney?

These are the best return prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Sydney was found on the route from Edinburgh, at $1,531 return. The most popular connection is from London to Sydney, while KAYAK users have found return deals for as low as $1,681 in the last 5 days.

What is the cheapest day to fly to Sydney?

The average price of all round-trip flights to Sydney clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Sydney is Monday where round-trip tickets can be as cheap as $2,083. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $2,522 on average.

What is the cheapest month to fly to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Sydney is May, where tickets cost $1,730 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from the United Kingdom is $2,725 and $2,526 respectively. For one-way flights, the best month to travel is November with an average price of $1,008.

What is the cheapest time of day to fly to Sydney?

The average price for all round-trip flights to Sydney depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Sydney is generally at night, when round-trip flights cost $2,225 on average. The most expensive time of day to fly to Sydney is generally at night, which is peak travel time and where the average cost of a ticket is $2,225.

How far in advance should I book a flight to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 5 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

June

Cheapest flight

$702
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flight from Edinburgh to Sydney

FAQs - booking Sydney flights

  • Are there car hire facilities at Sydney Kingsford Smith Airport?

    There are a number of reputable car hire companies in the arrivals hall of the international terminal with pick-up locations from all terminals. Book your car in advance online for the best deal, collect the keys from the car hire company desk and you will be directed to your vehicle.

  • Which airport hotels are there at Sydney Kingsford Smith Airport?

    Rydges Airport Hotel is opposite the airport and offers free shuttle transfers for guests. Getting to the ibis budget hotel is easy with a short 10 minute walk from domestic terminals, however if you are coming from international terminal then it’s a 10 minute drive. The Sydney Shuttle offers transfers for around AUD7 (approximately GBP4).

  • Is there a train service from Sydney Kingsford Smith Airport to the city?

    There is a station located at the airport with stops at both domestic and international terminals. Trains run approximately every 10 minutes and the journey to the centre takes 13 minutes – tickets (Opal Cards) can be purchased from the station or from Relay or WH Smith.

  • How do I transfer between terminals at Sydney Kingsford Smith Airport?

    The free option is the T-Bus service between international and domestic terminals. The shuttle service runs daily between 6.00am and 8.50pm from outside Arrivals. The journey takes approximately 10 minutes. Alternatively, you can take a taxi, which takes 10 minutes but will cost AUD17 - AUD22 (approximately GBP10 - GBP13).

  • What is the cheapest flight to Sydney?

    In the last 5 days, the cheapest flight deal to Sydney was found on the route from Edinburgh, at $1,531 return. The most popular connection is from London to Sydney, while KAYAK users have found return deals for as low as $1,681 in the last 5 days.

  • How far is Sydney Kingsford Smith Airport from central Sydney?

    Sydney Kingsford Smith Airport is 7 km from the centre of Sydney.

  • What is the name of Sydney’s airport?

    When flying to Sydney, you'll arrive at Sydney Kingsford Smith Airport (SYD). The airport is also known as Kingsford Smith or Sydney.

  • How much is a flight to Sydney?

    On average, a flight to Sydney costs $3,128. The cheapest price found on KAYAK in the last 2 weeks cost $2,810 and departed from London Heathrow Airport.

  • How does KAYAK find such low prices on flights to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Sydney are there each week?

    Each week there are around 8,235 direct flights from within United Kingdom to Sydney. The most common day for departures is Friday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Sydney

  • Looking for a cheap flight? 25% of our users found flights on this route for $3,128 or less one-way.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sydney flight deals.
  • For travellers who are a little hungry after their flight to Sydney, there are a number of food options at Sydney Kingsford Smith Airport. From Beqaa, serving Lebanese street food and a Subway in the food court in T1 international arrivals hall to the various coffee shops (such as Toby’s Estate at T3 domestic terminal) and burger bars – Chur Burger and Bistro 2020 in T2 domestic terminal – there are restaurants to suit every appetite and palate.
  • For those families with babies in transit at Sydney Kingsford Smith Airport, you will be pleased to know there are parents’ rooms and baby change rooms throughout the international terminal both before and after customs. These rooms have change tables, nursing areas and a microwave oven if you need to heat food.
  • Flights to Sydney can be long and tiring so if you want to freshen up after arriving there are shower facilities available near check-in area at departures. For those travellers in transit there are some showers past security (passenger only access) on the departures level. You will need to supply all provisions for the use of the shower – these can be purchased at a relevant retail outlet if need be.
  • If you crave a moment of quiet contemplation or prayer after one of these long flights to Sydney and before you head out into the city, Sydney Kingsford Smith Airport has a prayer room located on level 3 at the international terminal.
  • For the traveller who does not want to purchase bottled water for the flight, Sydney Kingsford Smith Airport has a number of water fountains scattered throughout the international terminal. These are situated outside most toilets and provide passengers with clean drinking water and the option to refill your water bottles at no charge.

Reviews of the top 5 airlines flying from the United Kingdom to Sydney

 
See real verified KAYAK customer reviews for airlines flying to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Sydney. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1433 reviews
8.1Crew
7.7Entertainment
7.5Comfort
7.9Boarding
7.3Food
Airline reviews

The legroom in economy on an A321 is wholly inadequate for a 6’3” man. Deeply dissatisfied.

6.0 GoodAndrew, June 2026
HKG - HAK
Read more Cathay Pacific reviews

The legroom in economy on an A321 is wholly inadequate for a 6’3” man. Deeply dissatisfied.

Crew were not engaging. Only engaged if requested. Food taste was mediocre

There could have been more options on the entertainment section Nothing was available for non English speaking passengers

We flew economy light. We did not want to check bags and we had free 1 bag, but just had back packs with small personal item. Try as we may could only get bags down to 17lbs each. So we put 2 lbs from one bag into other and checked it. I think if someone has a checked bag allowance and chose not to use it , it would benefit both parties to bump carry on weight up to the next level of 22lbs or 10kgs. Just a thought.

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

As a solo traveller, I always prefer to have an aisle seat, but the flight was so full, there weren’t any available. I understand that the seatbelt sign sometimes has to go on if turbulence is anticipated but after the second food service, it was on continuously for about an hour and a half and there didn’t seem to be any turbulence at all! With seats reclined, my fellow passenger in the aisle seat asleep and the seatbelt sign on I felt very trapped, extremely uncomfortable and in desperate need of the bathroom. The positives were that the staff were very friendly, the entertainment was great and we actually took off on time and arrived in HKG earlier than expected.

There is very little in the title" Premium" in the Economy experience with Cathay, Melbourne to Hong Kong. The seats are uncomfortable and the cabin with outdated 1990's decor and trim. The food service was sloppy and the leg room providing little to no advantage over regular economy seating. Infact, the Sunday flight was not fill occupancy and I would have done better saving the significant additional costs for the PREMIUM ticket and taken advantage of the seating. If you are a regular premium economy traveler of EMIRATES expecting the same experience on CATHAY, you will be disappointed. Emirates far superior.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Very comfortable flights. Not so many new releases in terms of films.

The aircraft was slightly newer but the food was very bad. Bland and uninteresting. Nothing special at all.

Seats not comfortable. We had requested vegan meal and it wasn’t given.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

Not good - chair back could not move back for premium economy. Not worth the price

The back of the chair - premium economy could not move back - not worth the price

We were diverted to Chengdu, because of bad weather and finally made it to Chong King about 7 hours later

No wheelchair service at all ( I did request that service and also purchased the priority assistant bundle) , what a waste of money

We bought an upgrade to Business Class at the airport but did not realise that it was not the regular Business Class. The 787 Dreamliner was very dated with the seats not as comfortable as other airlines and some things were almost coming off. We were then told that because it was an upgrade at the airport, we get to sit in the BC cabin but will be served economy class food. So when everyone else got served in china ware, we were given the tray you got in economy class. The wifi does not work. It only connects to watch movies (which is the same as what you find in the ICE) but the internet does not work. The cabin crew while were friendly, were not responsive. Overall, I will never fly China Southern again.

We bought the business class tickets. The check-in staff and onboard crew were excellent, providing commendable service throughout. However, it was disappointing to find that China Southern Airlines does not have a lounge at SFO. Instead, passengers were provided with a $35 per person food voucher, which fell short of expectations. Furthermore, the quality of the onboard food left much to be desired, marking a significant decline compared to our previous flight experience in 2019, prior to the pandemic.

No good but was short flight. Both of our China Southern flights were on time. No surprises.

The flight was okay it was the kayak customer service that was poor, I have been trying to change my name on my flight ticket 3 days before my flight and nothing got done about it even tho I messaged so many times and phoned, all I got in return was that is was being processed and still to this day nothing has been done about it, I think it’s disgusting and un needed stress to the trip.

Crew and food was good, ok leg room if you don’t have a big box under the seat. And the seats are so narrow (I’m only 70kg), will consider an alternate airline next time

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

The flight was delayed and one member of the crew was a bit rude. But apart from that all good.

Terrible experience resolving missed connection after flight was delayed. 3 hour queue at transit desk, not enough staff, no organisation, worst ever flying experience.

The rows of seats in economy class are seriously close to one another making eating and resting just about impossible - there is hardly any legroom. Anyone larger than average size would have an incredibly uncomfortable flight. I had to basically share my seat with the lady passenger next to me as she was too big to fit into her allotted seat.

Food was good, attendants were friendly. Seats were not comfortable. Did not receive any amenities such as eyemask or earplugs that would have helped sleep. Additionally a large group of passengers boarded very late into boarding and were a disruption for almost the whole flight. Flight attendants did their best but the kids were making so much noise, kicking seats, and half the time no adult was sat with them so they weren’t being managed.

I staff or crew they were very friendly and humbly, they done theirs service very well, I appreciate them and thank you to the company or Qatar 🇶🇦 Government for providing as good service in their flight ,once again, thank you 😊 🙏 😀 😉 👍

Crews are very rude and unhelpful. Cramped seats in economy. Foods are useless

Boarding delayed, no communication. I left the lounge, and heard a final call, boarding started after a 30 minutes.

Very tight seating. Crew seemed too dis interested and too slow to remove main meal trays.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

It was OK as the seat which we paid for doesn’t have any window. We paid $120 for 3 seats but it’s for nothing. Crew could not help. None of the ports worked so all our phones went dry

The business class experience is fantastic. The crew were polite but often unavailable even when I tried to call them! I even found myself bringing my used dishes and cutlery up to the crew because no one had come to collect it after over an hour.

The staff was kind and polite, but it was very very hot and no ways to have some fresh air.it would be also be nice to have more time to sleep, since it was a night flight

Very very bad service very tight seats never ever flying with Etihad again

I travelled from Adu Dhabi to Melb; service was minimal at best, when I asked for a bottle of water but no meal I was told it was not available- it seemed a cup would do. The staff were un helpful & dismissive. We had a family near us who I never saw obtain any assistance from crew- they were simply avoided! Meal was simple and adequate no hot drinks were on offer until close to arriving, with a pseudo breakfast. Seats were tight despite obtaining extra leg room. I will not be flying with Etihad again and will not recommend them to family & friends.

The service and courtesy of the flight attendants was good. The check in staff were ok. Seat on the flight uncomfortable.

Suck! Sat in plane on the tarmac (hot) over 2 hours

The flight was delayed. The staff made us wait in the room that is too small and it was crowded and with no seats available for waiting. They did not tell us why the delay occurred.

China eastern was fantastic. I had read so many bad reviews that had made me nervous. However, I found that the flight attendant’s, and customer service check in etc. etc. was excellent. I had no problems. I would fly with them again!

Better good than most, if not all European airlines. If you’re stuck in an economy seat anyways, China Eastern is a good choice because of shorter flight time, being able to overfly Russia

Price is the main attraction. Staff is OK but difficult to communicate with them due to general lack of English. Food is truly abysmal, the main courses (4) were barely edible. The choices for breakfast served at 5:30 am prior to landing at Gatwick airport were Spaghetti Bolognese or seafood fried rice. Choices offered for all 4 mains were either something rice or noodles. Shanghai airport layover is much too long in a very poorly serviced airport. We were unable to use WiFi; private lounges required cash only payment with no ATM or cash exchange open.

Lost Baggage - very frustrated…learned that bag was never put on plane.

Great staff and food. Seats pretty uncomfortable but plenty of legroom. Entertainment system outdated.

We were cutting it close on our connecting flight and notified all staff at departing gate and flight attendants. From the start, we were told to check in with the international transfer desk by everyone, except for one lady who wanted to argue the time difference that was already taken into account. We also asked if we could try to exit the plane first (our family of 4 and 8 others on the same connecting flight). They just told us to check in with international transfers. We landed and had very little time to make our next flight. We were not offered any assistance or communication to the receiving gate. We ran all the way to the international transfers gate only to be turned away. I think we could have made it if we were allowed to exit and a call was made to other check in counter. After that we spent 6 grueling hours with our kids trying to rebook a flight. No food of any type of compensation was offered besides a dirty hotel room. The ladies with China Eastern at the Shanghai International counter were rude an unhelpful. We were directed to 3 different counters and waited before they said they forgot about a hotel. It was a long, miserable day. I believe this could have all been avoided.

How do you run out of beer after one hour of a twelve hour flight?!

Flight was fine, however we were not able to check in online, this adds to travel stress. Luckily check-in at Heathrow was quick, but we did not get the seats we paid extra for. We paid for a window and 2 aisle seats from Shanghai to Tokyo leg, but they changed us to middle seats. Not good :(

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Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney