£273 Find Cheap Flights from Sydney to the United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to the United Kingdom departing on 10/6. 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.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Best United Kingdom Flight Deals from Sydney

Cheapest return prices found by our users on KAYAK in the last 72 hours

London
London1 stop£585
Manchester
Manchester2 stops£724
Edinburgh
Edinburgh2 stops£746
Birmingham
Birmingham2 stops£794
London
London1 stop£585
Manchester
Manchester2 stops£724
Edinburgh
Edinburgh2 stops£746
Birmingham
Birmingham2 stops£794

Cheap Flight Deals from Sydney to the United Kingdom (SYD-GB0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to the United Kingdom 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.

Recent return flight deals from Sydney to the United Kingdom

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Sydney to the United Kingdom.
Discover the best prices for you by selecting your travel dates on KAYAK.
China Eastern Logo
11:00 - 16:00SYD-LGW
38h 00m1 stop
China Eastern Logo
11:35 - 12:35LGW-SYD
40h 00m1 stop
£585China Eastern
Find Deal
Sat, 24 May - Mon, 9 Jun
 Logo
12:50 - 16:00SYD-LGW
36h 10m2 stops
 Logo
07:10 - 19:30LGW-SYD
51h 20m2 stops
Tue, 10 Jun - Tue, 24 Jun
 Logo
12:50 - 23:05SYD-LGW
43h 15m2 stops
 Logo
05:50 - 19:30LGW-SYD
52h 40m2 stops
Tue, 17 Jun - Tue, 24 Jun
Cathay Pacific Logo
21:50 - 20:35SYD-LHR
31h 45m1 stop
Cathay Pacific Logo
22:15 - 06:10LHR-SYD
22h 55m1 stop
£743Cathay Pacific
Find Deal
Wed, 21 May - Wed, 20 Aug
Cathay Pacific Logo
21:50 - 20:35SYD-LHR
31h 45m1 stop
Cathay Pacific Logo
18:20 - 08:40LHR-SYD
29h 20m1 stop
£755Cathay Pacific
Find Deal
Wed, 21 May - Wed, 28 May
Emirates Logo
21:10 - 12:55SYD-STN
25h 45m1 stop
Emirates Logo
20:15 - 18:35STN-SYD
35h 20m1 stop
£779Emirates
Find Deal
Tue, 14 Oct - Thu, 30 Oct
Emirates Logo
06:00 - 12:55SYD-STN
40h 55m1 stop
Emirates Logo
20:15 - 18:35STN-SYD
35h 20m1 stop
£784Emirates
Find Deal
Thu, 9 Oct - Thu, 30 Oct
British Airways Logo
14:40 - 08:45SYD-NCL
27h 05m2 stops
British Airways Logo
11:05 - 06:20NCL-SYD
33h 15m2 stops
£868British Airways
Find Deal
Wed, 1 Oct - Wed, 22 Oct
British Airways Logo
14:40 - 13:10SYD-EDI
31h 30m2 stops
British Airways Logo
17:30 - 05:20EDI-SYD
26h 50m2 stops
£868British Airways
Find Deal
Wed, 14 May - Tue, 27 May
Singapore Airlines Logo
19:05 - 09:15SYD-MAN
48h 10m1 stop
Singapore Airlines Logo
10:35 - 07:40MAN-SYD
59h 05m1 stop
£1,064Singapore Airlines
Find Deal
Mon, 20 Oct - Fri, 24 Oct
Useful Info

KAYAK's insights & trends for Sydney to the United Kingdom flights

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

What is the cheapest Sydney to the United Kingdom flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Sydney to the United Kingdom.
The cheapest ticket to the United Kingdom from Sydney found in the last 72 hours was to London, at £1,019 return. The most popular route is from Sydney (SYD) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £1,019.

What is the cheapest time of day to fly to the United Kingdom?

The average price for all round-trip flights from Sydney to the United Kingdom depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to the United Kingdom is generally at night, when retur flights cost £1,183 on average. Morning departures are around 22% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £1,700.

Can I save money by flying with a stopover from Sydney to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £2,219 on average.

What is the cheapest month to fly from Sydney to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to the United Kingdom, 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 from Sydney to the United Kingdom is October, when tickets cost £778 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is £1,267 and £1,064 respectively.

What’s the cheapest day of the week to fly from Sydney to United Kingdom?

The average price of all round-trip flights from Sydney to the United Kingdom clicked on KAYAK for each day over the last 12 months.
When flying from Sydney to United Kingdom, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Sydney, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

How far in advance should I book a flight from Sydney to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to the United Kingdom, 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 on the flight from Sydney to the United Kingdom, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know - Cheap tickets from Sydney to the United Kingdom

Low season

January

High season

June

Cheapest flight

£273
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly (7% more expensive on average)
Flight from Sydney to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Sydney to the United Kingdom?

    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 from Sydney to the United Kingdom.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Sydney to the United Kingdom 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 from Sydney to the United Kingdom?

    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 from Sydney to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from Sydney to the United Kingdom

  • Looking for a cheap flight from Sydney to the United Kingdom? 25% of our users found tickets from Sydney to the United Kingdom for the following prices or less: London £666 one-way - £1,160 round-trip

Top 5 airlines serving from Sydney to the United Kingdom

Need help choosing which airline to fly with from Sydney to the United Kingdom? 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.
8.1
Singapore AirlinesOverall score based on 1292 reviews
7.7Food
8.2Boarding
7.9Comfort
8.6Crew
8.0Entertainment
Airline reviews

Both the staff at check-in counter and on board were pleasant and helpful. My chicken and mashed potato was good, sauce was tasty, but the zucchini, carrot n other accompanying vegetables were over-cooked a little. (I understand the meal has to be prepared earlier). Yet I would fly on Singapore Airlines again and recommend it to family and friends.

10.0 ExcellentAnonymous, Apr 2025HKG - SIN
Read more Singapore Airlines reviews

Both the staff at check-in counter and on board were pleasant and helpful. My chicken and mashed potato was good, sauce was tasty, but the zucchini, carrot n other accompanying vegetables were over-cooked a little. (I understand the meal has to be prepared earlier). Yet I would fly on Singapore Airlines again and recommend it to family and friends.

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Loved the airline with the exception of their carry on limitations. They enforce a strict 7 kilo limit for carry on baggage which is ridiculous. We traveled from SFO to SIN with carry on with no difficulty yet when we checked in Delhi they forced us to check the carry on bags. The weight of our carry on bags were 11 and 12 kilos and while they exceeded the limitations set by Singapore Airlines they were well under weight limitations set by may other carriers. Interestingly my wife and I were each allowed two 22 KG bags to check in addition to the 7 kg carry on for a total weight of 102 KG's. Our total weight with the one bag we planned to check and our two carry ons was 46 kgs.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Food could have been better. Too many passengers getting up and down all the time.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

Everything was great keep up the good work 😁, can't ask for more.

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

Food no so good. Extra charge to much for front seats cost me £163 then other people sat near me for nothing 🤬

We arrived in line for check in at 6:15 p.m. but did not check in until 8:00 p.m. The line for economy check in was very long, and all of the desks 03-13 were not open, although most of them opened sporadically. The crew on board were very nice and helpful, friendly and kind. It has been many years since we flew Emirates (at least 17 years), and we notice that foot rests are no longer available in economy, but we were lucky enough to fly in the upper deck and appreciate your opening some of your flights to economy passengers in the upper deck. We will definitely fly on emirates more often! Thank you.

Good flight overall. Good options of food on NY-Dubai-Mumbai leg. Not that good reversing back. The flight crew is courteous and professional as always. The seating was much more comfortable going into Mumbai than coming back. Cheers!

Comfort poor, little leg room, cabin temperature too hot. No free entertainment. No complementary drinks. Overal experience poor and would not travel with them again.

The plane seemed pretty old and the food was not good

Comfort and customer service from most if the crew was great. The crew reassigning passengers should consider the presence of infants when reassigning seats. Unfortunately a couple of oversized passengers were relocated next to us, making this segment a bit uncomfortable, as there was not only extra leg space required. I ended up swapping seats with my husband so our baby wouldn't be impacted. My husband travelled quite uncomfortable as the reassigned neighbour shoulder and arm ended up on my husband's seat

Flight was pathetic, felt like a old plane was modified and brought in service. Didnt like the aircraft at all. Crew and services were good.but aircraft totally dissappointment.

On this flight, about the last 2 hours the captain kept the cabin too hot. It appeared like the ac was off.

The entire crew went above and beyond. This was our first flight with our 3 month old, and they were accommodating and friendly. The crew is attentive and marks a HIGE difference to the regular runs with Avianca and LATAM.

The food was amazing on our flight. So many options for movies and shows to stay entertained for 12 hours.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

very professional and very attentive to my Special Needs as I required a Wheel Chair and assistance to board

Crew was great. But a bit understaffed. The business class seat, etc were dated. But comfortable. Some legs had entertainment system from a decade ago. Selections were rather poor. Food was mediocre at best. Actually poor for business class standards. I liked the lounge in Hong Kong. Showers were great. Food was nice.

Very noisy and careless crew on this overnight flight. They should understand customers want to sleep

The flight was delayed for 30 mins. The overall experience was good.

Highly impressive. On time. Smooth and fast boarding and disembarkment. Really great service

The economy seats are much indeed roomier. Meals needs improvement.

It was okay overall but the food was very, very bad.

bad… no veg food was provided eventhough i pre ordered special meal

no veg food was provided eventhough i pre ordered special meal

Super surprised with the entire experience. Business class is incredible. Flight attendants around the world could learn customer service from these people. Simply fabulous experience all the way around.

Pillow and blanket are dirty. My son got multiple bites during the flight

Flight was on time. My group paid for seat’s so that us four can be seated next to each other. We all got separated. We all got middle seats, which made it more difficult to be able to get up and stretch or use the restroom. We tried talking to the employees at China Eastern and they were of no help. We will not be taking this flight or recommend this route to others in the future. Also I will be contacting customer service on how I can get our money back for paying for assigned seats.

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!

Excellent! I had read some negative reviews but I found out that it was not all was not true! The staff was courteous and helpful. The flight take off and landing was nice & easy. The food was good! I asked for a second and I got it easily and without an attitude! All was wonderful!

Excellent experience however older aeroplanes used by China Eastern Airlines.

The crew were excellent, service amazing, blankets and pillow good, cabin temperature perfect, the flight on time, food was unusual selection however plentiful, price for tickets unbeatable through Kayak. Older aeroplanes used by China Eastern was the only down side.

Delay in off-boarding due to customs at SFO... pilot announcement should have come earlier so passengers don't clog aisles.

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

The temperature of the plane cabin is too hot. Sweat and uncomfortable. Also my food tray was broken down drinks fall off

Boarding was delayed and we had to get on buses to plane so group # didn't matter. No food or drinks served gratis. Seats were small, knees smashed into the seat ahead, didn't recline. Crew was excellent though.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

Our original booking with Kayak -our first experience -was exactly what we wanted and worked well. Updates were friendly and reassuring as were the contacts with UnderPricer so a big win-win. We learned a lot on your reliability and will definitely put you on our organisational list for the future.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

Plane and seats ok. Dinners going and coming back were not fantastic. Breakfast from Seattle to London fine with bagel, cheese and fried egg. Second meal on London to Seattle not my favorite of kind of pizza sauce in a pastry. Came with water about three different times on each of my long flights. Staff on all very friendly and helpful.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

We ordered kids meals - which were not kid friendly at all! (the breakfast that is - scrambled eggs on a bed of spinach and asparagus?)

Uncomfortable seats. Crazy seat assignments separating families when they could easily have put them together. Good communication from pilot about arrival time after delay in departure. Toilet ran out of water in sink. Snack box poor for flight of this length.

The bed in Club class was not very comfortable, everything else was good.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

Everything you need to know for your flight from Sydney to the United Kingdom

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.