$641+ Cheap flights to the United Kingdom

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
8 Jan — 15 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to United Kingdom in 2025

Enter your travel dates to find the best prices.

Cheapest flights to United Kingdom
Explore the most affordable flight options available to United Kingdom. Find the lowest fares based on data from user searches, with prices last updated on 9 December 2025.

Thu 11/1214:30SYD - LTN
2 stops30h 50mMultiple Airlines
Thu 18/1218:35LTN - SYD
2 stops32h 00mMultiple Airlines
Deal found 6/12$1,634
Thu 11/1215:55SYD - LGW
2 stops29h 20mMultiple Airlines
Thu 18/1214:50LGW - SYD
2 stops35h 45mMultiple Airlines
Deal found 6/12$1,654
Sun 7/1217:20SYD - LHR
1 stop36h 50mSriLankan Airlines
Thu 11/1220:40LHR - SYD
1 stop32h 10mSriLankan Airlines
Deal found 6/12$1,688
Thu 18/1209:55SYD - LHR
1 stop44h 05mMultiple Airlines
Wed 14/121:00LHR - SYD
1 stop30h 50mMultiple Airlines
Deal found 6/12$1,739
Mon 15/1216:35SYD - STN
2 stops35h 20mMultiple Airlines
Tue 23/1221:20STN - SYD
2 stops33h 35mMultiple Airlines
Deal found 8/12$1,741
Mon 22/1222:00SYD - LTN
3 stops34h 30mMultiple Airlines
Wed 31/1212:25LTN - SYD
2 stops31h 10mMultiple Airlines
Deal found 8/12$1,755

Find flight deals to United Kingdom

Find the latest flights to United Kingdom in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 9 December 2025.

Return from

$1,559

One-way from

$689

Popular in

December

Cheapest in

February

Average price

$2,508

Good round-trip deal

$1,984 or less

Good one-way deal

$1,462 or less
Air China
  • Air China
  • 28/1-11/2
  • 2 total stops
  • 84h 50m total
  • Sydney to London
Etihad Airways
  • Etihad Airways
  • 2/2
  • 1 total stop
  • 43h 25m total
  • Sydney to United Kingdom
Highest demand for flights based on searches. 11% potential increase in price ($241 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($59 potential savings vs. average return price).
Average for return flights in December 2025
Price to beat on a round-trip flight from Sydney Kingsford Smith to United Kingdom.
Price to beat on a one-way flight from Sydney Kingsford Smith to United Kingdom.

Cheapflights Fare Finder

 
Locate flights to United Kingdom that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 9 December 2025.
Use the filters below to find and compare flights to the United Kingdom that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 2/2

21:15-16:10

2 stops29h 55m

London Gatwick

Fri 6/2

17:05-19:20

2 stops39h 15m

$1,628

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sat 7/2

21:15-22:35

2 stops36h 20m

London Gatwick

Mon 9/2

10:20-19:20

2 stops46h 00m

$1,628

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 6/2

21:15-09:20

2 stops47h 05m

London Gatwick

Thu 12/2

10:20-19:20

2 stops46h 00m

$1,628

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 2/2

21:15-16:10

2 stops29h 55m

London Gatwick

Thu 12/2

17:05-19:20

2 stops39h 15m

$1,628

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 1/5

21:10-16:20

2 stops28h 10m

London Gatwick

Thu 5/11

06:25-19:50

2 stops26h 25m

$1,652

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Sun 8/3

16:35-14:15

2 stops32h 40m

London Luton

Thu 12/3

20:50-17:55

2 stops34h 05m

$1,655

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 24/3

15:55-09:20

2 stops28h 25m

London Gatwick

Tue 22/9

17:15-19:15

2 stops41h 00m

$1,657

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 29/5

22:10-16:30

1 stop27h 20m

London Heathrow

Sat 20/6

21:10-10:45

1 stop28h 35m

$1,664

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Mon 26/1

20:05-16:20

2 stops31h 15m

London Luton

Sun 8/2

08:05-22:30

2 stops27h 25m

$1,682

SydneyLondon

SYD - LCY

SYDLCY

Sydney Kingsford Smith

Wed 18/2

15:55-09:05

2 stops28h 10m

London City

Wed 4/3

18:10-07:15

2 stops26h 05m

$1,690

Flights are sorted by cheapest return flights first.

Deals found on 8/12

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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 to the United Kingdom

How long is the flight to United Kingdom?

On average, a flight from Sydney to United Kingdom takes 30 hours 25 minutes. Flights to United Kingdom from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to United Kingdom?

Use this chart to determine the cheapest time to fly return from Sydney to United Kingdom. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to United Kingdom should consider flying on Tuesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday at midday, when prices are usually at their highest.

Weekly flight availability to United Kingdom

The most flights from Sydney to United Kingdom are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

What are the cheapest airlines that fly to United Kingdom?

The cheapest airlines flying from Sydney to United Kingdom are Hainan Airlines, Air China and China Southern.

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular places to fly to in United Kingdom?

Destination popularity is based on the amount of flight searches to United Kingdom in the last few years. This data was updated on 9 December 2025.
The most popular places in United Kingdom to fly to are England and Scotland.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 9 December 2025.
Read reviews from past customers who have flown Emirates, Singapore Airlines, andQantas Airways to the United Kingdom. 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.

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

FAQs about flying to United Kingdom

  • Can I find cheaper flights to United Kingdom if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to United Kingdom on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to United Kingdom?

    Based on reviews from Cheapflights users, Beijing Capital Airlines is rated the highest out of the airlines that fly to United Kingdom.

  • What is the cheapest airport to fly to in United Kingdom?

    London Stansted is currently the cheapest airport to fly to in United Kingdom. One-way flights to London Stansted typically cost $19, while return flights cost around $28.

  • How much is a return flight to United Kingdom?

    A return flight to United Kingdom will typically cost around $374, however they can be found for as little as $192.

  • Where does the fastest flight to United Kingdom depart from?

    For those looking to save time traveling to United Kingdom, Perth offers the quickest one-way flight (17 hours 30 minutes).

  • Which airport is closest to Natural History Museum?

    f being close to Natural History Museum is important to you, you’ll want to land at London Heathrow Airport.

  • Does London Heathrow have car hire?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow Airport Terminal 2-3 is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to United Kingdom?

When you search for this flight to United Kingdom, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets to United Kingdom?

Cheapflights simply makes it quick and affordable to book flights to United Kingdom by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights to United Kingdom with no change fees?

Need flexible booking options for your flight to United Kingdom ? 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 to United Kingdom become cheaper?

Of course! You can track prices for flights to United Kingdom and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.